Light source calibration method and apparatus, electronic device, and storage medium

Abstract

Embodiments of the present application disclose a light source calibration method and device, electronic equipment and a storage medium. First light-emitting data of a light source of a target light-emitting device under a first set of luminance is collected. Second light-emitting data of a light source of a first reference light-emitting device under a second set of luminance is obtained, the number of luminance in the second set of luminance is greater than the number of luminance in the first set of luminance, and the device type of the first reference light-emitting device is the same as that of the target light-emitting device. Target light-emitting data of the light source of the target light-emitting device under the second set of luminance is generated based on the first light-emitting data and the second light-emitting data. The target light-emitting device is subjected to light source calibration processing based on the target light-emitting data. In this way, the light-emitting data used for light source calibration can be quickly obtained, thereby reducing the time cost of light-emitting data acquisition and light source calibration process, and effectively improving the light source calibration efficiency.

Description

Technical Field

[0001] This application relates to the field of computer technology, specifically to a light source calibration method, apparatus, electronic device, and storage medium. Background Technology

[0002] During the production of lighting fixtures, a spectrometer is needed to measure the luminous emission data of the light source. Based on the luminous emission data, the light source of the lighting fixture is calibrated to ensure the consistency of light color for lighting fixtures of the same type.

[0003] However, existing light source calibration methods require measuring a large amount of luminous data for each luminaire, resulting in high time costs and low light source calibration efficiency. Summary of the Invention

[0004] This application provides a light source calibration method, apparatus, electronic device, and storage medium, which can quickly acquire luminescence data for light source calibration, thereby reducing the time cost of acquiring luminescence data and the light source calibration process, and effectively improving the efficiency of light source calibration.

[0005] This application provides a light source calibration method, including:

[0006] Collect the first emission data of the target light-emitting device under the first brightness set;

[0007] Acquire the second emission data of the light source of the first reference light-emitting device under the second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type;

[0008] Based on the first luminescence data and the second luminescence data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated;

[0009] The target luminescence device is calibrated based on the target luminescence data.

[0010] Accordingly, embodiments of this application also provide a light source calibration device, including:

[0011] The acquisition unit is used to acquire the first emission data of the light source of the target light-emitting device under the first brightness set;

[0012] The acquisition unit is used to acquire second emission data of the light source of the first reference light-emitting device under a second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type.

[0013] The generation unit is configured to generate target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data and the second luminous data;

[0014] A calibration unit is used to perform light source calibration processing on the target light-emitting device based on the target light emission data.

[0015] In one embodiment, the first brightness set includes a plurality of target brightnesses, and the generating unit is configured to:

[0016] Acquire light source temperature drift data, which is used to indicate the amount of change in light emission data of the target light-emitting device at each target brightness of the first brightness set when it deviates from a preset temperature;

[0017] Based on the first luminescence data, the second luminescence data, and the light source temperature drift data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated.

[0018] In one embodiment, the above-mentioned generation of target luminescence data of the target luminescence device under the second brightness set based on the first luminescence data, the second luminescence data, and the light source temperature drift data is specifically used for:

[0019] Determine the temperature of the light source of the target light-emitting device when collecting the first light emission data corresponding to each of the target brightnesses, and obtain the target temperature corresponding to each of the target brightnesses;

[0020] Based on the light source temperature drift data and the target temperature, the first emission data is corrected to obtain the corrected first emission data;

[0021] Based on the second luminescence data and the corrected first luminescence data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated.

[0022] In one embodiment, the aforementioned light source temperature drift data includes the thermal equilibrium temperature corresponding to each target brightness. The step of correcting the first luminescence data based on the light source temperature drift data and the target temperature to obtain corrected first luminescence data is specifically used for:

[0023] Calculate the difference between the thermal equilibrium temperature and the target temperature corresponding to each target brightness to obtain the temperature offset value corresponding to each target brightness;

[0024] Based on the light source temperature drift data and the temperature offset value, determine the change in target luminous data corresponding to the brightness of each target;

[0025] Based on the change in the target emission data, the first emission data is corrected to obtain the corrected first emission data.

[0026] In one embodiment, the light source calibration device is further configured to:

[0027] The luminescence data of the light source of the second reference luminescent device at the initial temperature under each target brightness are collected to obtain the initial luminescence data of each target brightness at the initial temperature. The device type of the second reference luminescent device is the same as that of the target luminescent device.

[0028] Collect the light emission data of the light source of the second reference light emission device when it is at the thermal equilibrium temperature under each target brightness, and obtain the thermal equilibrium light emission data of each target brightness at the thermal equilibrium temperature;

[0029] Based on the initial temperature, initial luminescence data, thermal equilibrium temperature, and thermal equilibrium luminescence data corresponding to each target brightness, light source temperature drift data is generated.

[0030] In one embodiment, the first brightness set includes multiple target brightnesses, and the light source calibration device is further used for:

[0031] Acquire third emission data of the light source of at least one third reference light-emitting device under a second brightness set, wherein the device type of the third reference light-emitting device is the same as that of the target light-emitting device;

[0032] Based on the third emission data, at least one data inflection point corresponding to each of the third reference emission devices is determined;

[0033] Based on the data inflection point, multiple target brightnesses are determined in the second brightness set to obtain the first brightness set corresponding to the target light-emitting device.

[0034] In one embodiment, determining multiple target brightness levels in the second brightness set based on the data inflection point is specifically used for:

[0035] The brightness corresponding to the data inflection point in the second brightness set is determined as the target brightness.

[0036] or,

[0037] The brightness of the data inflection point in the second brightness set is offset based on the preset brightness difference to obtain the offset brightness of each data inflection point; the brightness of the data inflection point and the offset brightness are determined as the target brightness.

[0038] Furthermore, embodiments of this application also provide an electronic device, including a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of any of the light source calibration methods provided in embodiments of this application.

[0039] Furthermore, embodiments of this application also provide a computer-readable storage medium including a computer program, which, when run on an electronic device, causes the electronic device to perform the steps of any of the light source calibration methods provided in embodiments of this application.

[0040] Furthermore, embodiments of this application also provide a computer program product, including a computer program stored in a computer-readable storage medium; when a processor of an electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, causing the electronic device to perform the steps of any of the light source calibration methods provided in embodiments of this application.

[0041] This application embodiment acquires first emission data of the target light-emitting device's light source under a first brightness set; obtains second emission data of the light source of a first reference light-emitting device under a second brightness set, where the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type; based on the first and second emission data, it generates target emission data of the target light-emitting device's light source under the second brightness set; and performs light source calibration processing on the target light-emitting device based on the target emission data. Thus, by fitting and generating target emission data of the target light-emitting device's light source under the second brightness set using the first emission data of the target light-emitting device's light source under the first brightness set and the second emission data of the light source of a similar first reference light-emitting device under the second brightness set, it achieves the generation of a large amount of complete emission data with a small amount of emission data, thereby enabling rapid acquisition of emission data for light source calibration, effectively reducing time costs, and further improving light source calibration efficiency. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram illustrating an implementation scenario of a light source calibration method provided in this application embodiment;

[0044] Figure 2 This is a schematic flowchart of a light source calibration method provided in an embodiment of this application;

[0045] Figure 3a This is a schematic diagram of a specific process of a light source calibration method provided in the embodiments of this application;

[0046] Figure 3b This is another specific flowchart illustrating a light source calibration method provided in the embodiments of this application;

[0047] Figure 4 This is a schematic diagram of the structure of the light source calibration device provided in the embodiments of this application;

[0048] Figure 5 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] Furthermore, in the description of the embodiments of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0051] In the production process of lighting fixtures and other light-emitting devices, a spectrometer is needed to measure the luminescence data of the light source. Based on this data, the light source is then calibrated to ensure color consistency among similar devices. However, before calibrating the light source, luminescence data needs to be measured at each brightness level for every light source. This requires collecting a large amount of data, resulting in high time costs and limiting its use in large batches, thus leading to low calibration efficiency.

[0052] To address the aforementioned technical issues, this application provides a light source calibration method. This method generates target light source data for the target light-emitting device in a second brightness set by fitting first light-emitting data of the target light-emitting device under a first brightness set and second light-emitting data of a first reference light-emitting device of the same type under a second brightness set. The number of brightness values ​​in the second brightness set is significantly greater than the number of brightness values ​​in the first brightness set. This allows for the generation of a large amount of complete light-emitting data from a small amount of existing data, enabling rapid acquisition of light-emitting data for light source calibration. This avoids the need to collect a large amount of light-emitting data for each light-emitting device, effectively reducing time costs and further improving light source calibration efficiency.

[0053] This application provides a light source calibration method, apparatus, electronic device, and storage medium. The light source calibration apparatus can be integrated into an electronic device, which may be a server or a terminal, etc.

[0054] The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content delivery network (CDN) acceleration services, and big data and artificial intelligence platforms. The terminal can include, but is not limited to, computers, mobile phones, smart voice interaction devices, smart home appliances, vehicle terminals, and aircraft. The terminal and server can be directly or indirectly connected via wired or wireless communication, which is not limited herein.

[0055] Please see Figure 1 Taking the integration of a light source calibration device into electronic devices as an example, Figure 1 This is a schematic diagram of an implementation scenario for the light source calibration method provided in this application. The electronic device can be a terminal. The electronic device can collect first emission data of the target light source under a first brightness set; obtain second emission data of the light source of a first reference light source under a second brightness set, where the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light source and the target light source have the same device type; generate target emission data of the target light source under the second brightness set based on the first and second emission data; and perform light source calibration processing on the target light source based on the target emission data.

[0056] It should be noted that, Figure 1The schematic diagram illustrating the implementation environment of the light source calibration method is merely an example. The implementation environment of the light source calibration method described in this application is intended to more clearly illustrate the technical solutions of this application and does not constitute a limitation on the technical solutions provided in this application. Those skilled in the art will understand that, with the evolution of light source calibration and the emergence of new business scenarios, the technical solutions provided in this application are equally applicable to similar technical problems.

[0057] The solutions provided in this application are specifically illustrated through the following embodiments. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0058] This embodiment will be described from the perspective of a light source calibration device, which can be integrated into an electronic device, such as a server or a terminal, and this application does not impose any restrictions on it.

[0059] Please see Figure 2 , Figure 2 This is a schematic flowchart of the light source calibration method provided in an embodiment of this application. The light source calibration method includes:

[0060] In step 101, the first emission data of the light source of the target light-emitting device under the first brightness set is collected.

[0061] The target light-emitting device can be a light-emitting device currently collecting light emission data. This device can be equipped with a light source, such as various lamps. The light emission data can be parameters describing the light emission characteristics of the light source, including, but not limited to, at least one parameter such as color scale, illuminance, luminous intensity, luminous flux, and color temperature. The first light emission data can be the light emission data collected by the light source of the target light-emitting device under a first brightness set. The first brightness set can be a whole composed of multiple target brightness levels. The target brightness can be a key brightness selected from a complete set of brightness levels. These multiple brightness levels can be measurement points of the light emission data, with each measurement point corresponding to a different luminous intensity of the light source. For example, the multiple brightness levels can be in the form of percentages; for instance, the multiple brightness levels can include 100 brightness levels within a brightness range of 1%, 2%, to 100%, and the target brightness can be 10 or 15 key brightness levels within a brightness range of 1% to 100%. Ideally, the light emission brightness of the light-emitting device is weakest when the brightness is 1%, and strongest when the brightness is 100%. The specific brightness and the number of target brightness levels can be determined according to actual conditions, and this embodiment does not limit this.

[0062] Before acquiring the first emission data of the light source of the target light-emitting device under the first brightness set, the first brightness set corresponding to the target light-emitting device can be determined. For example, the first brightness set may include multiple target brightnesses. The third emission data of the light source of at least one third reference light-emitting device under the second brightness set can be acquired. Based on the third emission data, at least one data inflection point corresponding to each third reference light-emitting device is determined. Based on the data inflection point, multiple target brightnesses are determined in the second brightness set to obtain the first brightness set corresponding to the target light-emitting device.

[0063] The device type of the third reference light-emitting device can be the same as that of the target light-emitting device, and correspondingly, the light source type of the third reference light-emitting device can be the same as that of the target light-emitting device. Optionally, the type of LED chips in the light source of the third reference light-emitting device can also be the same as that of the target light-emitting device. The second brightness set can be a complete set of multiple brightness levels, which can be a complete brightness range. When calibrating the light source, it is necessary to collect complete light emission data of the light source of the luminaire under the complete set of multiple brightness levels (e.g., a brightness range of 1% to 100%) to calibrate the light source device. The third light emission data can be the light emission data of the light source of the third reference light-emitting device under the second brightness set, that is, the complete light emission data of the light source of the third reference light-emitting device. The data inflection point can be the point where the data trend changes in the third light emission data, or the light emission data of the light-emitting device under critical conditions, etc. The data inflection point in the third light emission data can be identified by smoothing data, curve fitting, or the difference method.

[0064] Optionally, there are multiple ways to determine at least one data inflection point corresponding to each third reference light-emitting device based on the third light-emitting data. For example, curve fitting can be performed on the third light-emitting data to obtain the light-emitting data curve corresponding to each third light-emitting data. Thus, the point where the concavity and convexity of the curve changes in each light-emitting data curve can be determined as the data inflection point corresponding to each third light-emitting data.

[0065] There are several ways to determine multiple target brightnesses in the second brightness set based on data inflection points. For example, the brightness corresponding to the data inflection point in the second brightness set can be determined as the target brightness; or, the brightness corresponding to the data inflection point in the second brightness set can be offset based on a preset brightness difference to obtain the offset brightness corresponding to each data inflection point; and the brightness corresponding to the data inflection point and the offset brightness can be determined as the target brightness.

[0066] The preset brightness difference can be a value used to offset the brightness corresponding to the data inflection point. The more target brightness values ​​there are, the higher the accuracy of the complete luminous data generated based on data fitting. However, to improve the rate of acquiring complete luminous data, it is necessary to reduce the number of target brightness values. Therefore, the brightness corresponding to the more critical data inflection point can be determined as the target brightness. At the same time, to improve accuracy, the brightness corresponding to the data inflection point can be offset according to the preset brightness difference. Thus, the brightness corresponding to the data inflection point and the offset brightness are determined as the target brightness. This can improve the acquisition rate of complete luminous data of the luminous device while ensuring accuracy, thereby improving the light source calibration rate.

[0067] In one embodiment, there are several ways to determine the multiple brightness values ​​in the second brightness set. For example, the maximum current value of the reference light-emitting device when the light emission brightness is at its maximum and the minimum current value of the reference light-emitting device when it is working can be recorded. The reference light-emitting device can be a light-emitting device of the same type as the target light-emitting device. The current value range from the minimum current value to the maximum current value is divided into multiple equal parts, and each equal part corresponds to a brightness. The larger the percentage of brightness, the larger the current value input to the reference light-emitting device, thereby making the light emission brightness of the reference light-emitting device greater.

[0068] The reference light-emitting device can be a third reference light-emitting device or another light-emitting device of the same type as the target light-emitting device. This application embodiment does not limit the specific type of light-emitting device.

[0069] For example, assuming the maximum current value of the reference light-emitting device is 2.8 amperes (A) and the minimum current value is 1A, and the number of brightness values ​​can be set to 100, then the current value range of 1A-2.8A can be divided into 100 parts, namely 1.018A, 1.036A, ..., 2.8A, and each current value corresponds to a brightness of 1%, 2%, ..., 100%, thus obtaining multiple brightness values ​​corresponding to the target light-emitting device.

[0070] In a conventional luminescence data acquisition process, a current of 1.018A can be input to the target luminous device at 1% brightness, and the luminescence data at this point can be collected to obtain the luminescence data corresponding to 1% brightness. Similarly, a current of 1.036A can be input at 2% brightness, and the luminescence data corresponding to 2% brightness can be collected, and so on, to obtain complete luminescence data for the target luminous device from 1% to 100% brightness. However, collecting luminescence data for each luminous device in this manner would consume a significant amount of time. Furthermore, in real-world scenarios, the number of brightness levels and the number of luminous devices are often much greater, leading to substantial measurement and time costs associated with this method.

[0071] In step 102, the second emission data of the light source of the first reference light-emitting device under the second brightness set is obtained.

[0072] The number of luminances in the second luminance set can be greater than the number of luminances in the first luminance set, and the first reference light-emitting device and the target light-emitting device are of the same device type.

[0073] The second brightness set includes multiple brightness levels, representing a complete brightness range. The luminescence data collected based on this second brightness set provides the complete luminescence data required for light source calibration of the light-emitting device. The number of brightness levels in this second brightness set can be significantly greater than the number of target brightness levels in the first brightness set. This second luminescence data can be luminescence data pre-collected on the light source of the first reference light-emitting device under the second brightness set. Since this second luminescence data includes luminescence data corresponding to each brightness level in the second brightness set, it constitutes complete luminescence data for the light source of the first reference light-emitting device. Based on this second luminescence data, light source calibration of the first reference light-emitting device can be performed.

[0074] Optionally, the first reference light-emitting device can be a third reference light-emitting device, or other light-emitting devices of the same type as the target light-emitting device, etc., and this application embodiment does not limit it.

[0075] In step 103, based on the first luminescence data and the second luminescence data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated.

[0076] The target luminescence data can be the complete luminescence data corresponding to the target luminescence device, and the light source calibration of the target luminescence device can be performed based on the target luminescence data.

[0077] Optionally, the target emission data can be the emission data of the target emission device under the second brightness set when the target emission device is in thermal equilibrium.

[0078] There are several ways to generate target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data and the second luminous data. For example, the second luminous data corresponding to each target brightness can be determined in the second luminous data. Based on the ratio between the first luminous data and the second luminous data corresponding to each target brightness, the second luminous data of other brightness values ​​in the second luminous data can be adjusted to obtain the first luminous data of the target luminous device under other brightness values. Thus, based on the first luminous data of the target luminous device under the target brightness and other brightness values, the target luminous data of the light source of the target luminous device under the second brightness set can be obtained.

[0079] Optionally, there are several other ways to generate the target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data and the second luminous data. For example, the first lamp bead model formula corresponding to the target luminous device can be obtained, and the target luminous data of the light source of the target luminous device under the second brightness set can be generated based on the input first luminous data and the second luminous data.

[0080] The formula for the first LED model can be information describing the relationship between the first luminous data, the second luminous data, and the target luminous data.

[0081] There are several ways to obtain the first LED model formula corresponding to the target light-emitting device. For example, the light sources of multiple sample light-emitting devices can be collected, including first sample light emission data under a first brightness set and target sample light emission data under a second brightness set. The device type of the sample light-emitting devices is the same as that of the target light-emitting device. The second sample light emission data of the light sources of the sample light-emitting devices under the second brightness set can be obtained. Based on the first sample light emission data, second sample light emission data and target sample light emission data corresponding to each sample light-emitting device, data fitting is performed to obtain the first LED model formula corresponding to the target light-emitting device.

[0082] In one embodiment, to further improve accuracy, the acquired first emission data can be temperature compensated based on the temperature at which the first emission data was acquired, so as to eliminate the influence of temperature on the accuracy of the fitted target emission data.

[0083] There are several ways to generate the target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data and the second luminous data. For example, the first brightness set may include multiple target brightnesses, and light source temperature drift data can be obtained. The light source temperature drift data is used to indicate the amount of change in luminous data corresponding to each deviation from a preset temperature under each target brightness of the target luminous device in the first brightness set. The target luminous data of the light source of the target luminous device under the second brightness set is generated based on the first luminous data, the second luminous data, and the light source temperature drift data.

[0084] The light source temperature drift data can be used to compensate for the temperature of the first emission data of the target light source. The preset temperature can be a pre-defined temperature change, for example, 1 degree Celsius. This means the light source temperature drift data can be used to indicate the change in emission data for light-emitting devices of the same type as the target light-emitting device when the temperature increases or decreases by 1 degree Celsius at various target brightness levels. For example, the illuminance of the target light-emitting device decreases by 0.2 lux for every 1 degree Celsius increase at a target brightness level, and the illuminance increases by 0.2 lux for every 1 degree Celsius decrease at the same target brightness level.

[0085] Optionally, there are several ways to obtain the light source temperature drift data corresponding to the target light-emitting device. For example, the light emission data of the light source of the second reference light-emitting device at the initial temperature under each target brightness can be collected to obtain the initial light emission data of each target brightness at the initial temperature. The device type of the second reference light-emitting device is the same as that of the target light-emitting device. Alternatively, the light emission data of the light source of the second reference light-emitting device at the thermal equilibrium temperature under each target brightness can be collected to obtain the thermal equilibrium light emission data of each target brightness at the thermal equilibrium temperature. Based on the initial temperature, initial light emission data, thermal equilibrium temperature, and thermal equilibrium light emission data corresponding to each target brightness, the light source temperature drift data is generated.

[0086] The second reference light-emitting device can be a light-emitting device of the same type as the target light-emitting device. The initial temperature can be the temperature of the second reference light-emitting device when it is first powered on. The light-emitting device can be equipped with a temperature sensor to collect its temperature. The initial light emission data can be the light emission data of the second reference light-emitting device at various target brightness levels collected when it is at its initial temperature; that is, the light emission data of the second reference light-emitting device at various target brightness levels collected by the temperature sensor when it is first powered on. The thermal equilibrium temperature can be the temperature of the second reference light-emitting device when it is in thermal equilibrium. The thermal equilibrium light emission data can be the light emission data of the second reference light-emitting device at various target brightness levels when it is in thermal equilibrium.

[0087] There are several ways to generate light source temperature drift data based on the initial temperature, initial luminescence data, thermal equilibrium temperature, and thermal equilibrium luminescence data corresponding to each target brightness. For example, one can calculate the temperature difference between the initial temperature and the thermal equilibrium temperature corresponding to each target brightness, and the difference in luminescence data between the initial luminescence data and the thermal equilibrium luminescence data corresponding to each target brightness. Then, the ratio of the luminescence data difference to the temperature difference is calculated to obtain the change in luminescence data of the second reference luminescent device for each 1-degree Celsius shift at each target brightness. Based on the change in luminescence data of the second reference luminescent device at each target brightness and the thermal equilibrium temperature, the light source temperature drift data is obtained.

[0088] There are several ways to generate target luminous data of the target luminous device's light source under the second brightness set based on the first luminous data, the second luminous data, and the light source temperature drift data. For example, the temperature of the light source of the target luminous device can be determined when collecting the first luminous data corresponding to each target brightness, and the target temperature corresponding to each target brightness can be obtained; the first luminous data can be corrected based on the light source temperature drift data and the target temperature to obtain the corrected first luminous data; and the target luminous data of the target luminous device's light source under the second brightness set can be generated based on the second luminous data and the corrected first luminous data.

[0089] The target temperature can be the temperature of the light source of the target light-emitting device when the first light emission data of the target light-emitting device is collected at each target brightness.

[0090] Optionally, since the internal temperature of the light source changes over time after startup, affecting the stability of its luminous performance, it is necessary to obtain the luminous emission data of the light source in thermal equilibrium state to ensure the accuracy and reliability of the light source calibration and avoid errors introduced by temperature fluctuations. Therefore, in this embodiment, the second luminous emission data is the luminous emission data collected by the light source of the first reference light source in thermal equilibrium state. Correspondingly, the first luminous emission data needs to be corrected by the light source temperature drift data to obtain the target luminous emission data of the light source of the target light source in thermal equilibrium state.

[0091] In this process, the first luminescence data is corrected based on the light source temperature drift data and the target temperature. There are several ways to obtain the corrected first luminescence data. For example, the light source temperature drift data may include the thermal equilibrium temperature corresponding to each target brightness. The difference between the thermal equilibrium temperature and the target temperature corresponding to each target brightness can be calculated to obtain the temperature offset value corresponding to each target brightness. Based on the light source temperature drift data and the temperature offset value, the change in the target luminescence data corresponding to each target brightness is determined. Based on the change in the target luminescence data, the first luminescence data is corrected to obtain the corrected first luminescence data.

[0092] The temperature offset value can be the difference between the target temperature corresponding to each target brightness and the thermal equilibrium temperature. The change in target luminescence data can be the change in luminescence data that needs to be corrected for the first luminescence data.

[0093] There are several ways to determine the change in target luminous data corresponding to each target brightness based on the light source temperature drift data and temperature offset value. For example, the ratio of the temperature offset value corresponding to each target brightness to the preset temperature (e.g., 1 degree Celsius) can be calculated, and the result of the ratio calculation can be multiplied by the change in luminous data in the light source temperature drift data to obtain the change in target luminous data corresponding to each target brightness.

[0094] Among them, the first luminous data is corrected based on the change in the target luminous data. There are several ways to obtain the corrected first luminous data. For example, if the change in the target luminous data corresponding to the target luminous device at the target luminous device is a decrease of 0.5 lux in illuminance, then 0.5 lux can be subtracted from the illuminance corresponding to the target luminous data at the target luminous device in the first luminous data to obtain the corrected first luminous data corresponding to the target luminous device. Similarly, the first luminous data corresponding to each target luminous device is corrected to obtain the corrected first luminous data corresponding to the target luminous device.

[0095] After correcting the first luminescence data based on the light source temperature drift data and the target temperature to obtain the corrected first luminescence data, the target luminescence data of the light source of the target luminous device under the second brightness set can be generated based on the second luminescence data and the corrected first luminescence data. There are several ways to generate the target luminescence data of the light source of the target luminous device under the second brightness set based on the second luminescence data and the corrected first luminescence data. For example, the second luminescence data corresponding to each target brightness can be determined in the second luminescence data. Based on the proportional relationship between the corrected first luminescence data and the second luminescence data corresponding to each target brightness, the second luminescence data for other brightness levels in the second luminescence data can be adjusted to obtain the first luminescence data of the target luminous device under other brightness levels. Thus, based on the corrected first luminescence data of the target luminous device under the target brightness and the first luminescence data under other brightness levels, the target luminescence data of the light source of the target luminous device under the second brightness set can be obtained.

[0096] Optionally, there are several ways to generate the target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data, the second luminous data, and the light source temperature drift data. For example, the second lamp bead model formula corresponding to the target luminous device can be obtained, and the target luminous data of the light source of the target luminous device under the second brightness set can be generated by fitting based on the input first luminous data, light source temperature drift data, and second luminous data.

[0097] The formula for the second LED model can be information indicating the correlation between the first light emission data, the light source temperature drift data, the second light emission data, and the target light emission data.

[0098] There are several ways to obtain the LED model formula corresponding to the target light-emitting device. For example, one can collect the first sample light emission data and sample light source temperature drift data of the light source of multiple sample light-emitting devices under the first brightness set, as well as the target sample light emission data under the second brightness set. The device type of the sample light-emitting devices is the same as that of the target light-emitting device. Then, one can obtain the second sample light emission data of the light source of the sample light-emitting devices under the second brightness set. Based on the first sample light emission data, second sample light emission data, sample light source temperature drift data, and target sample light emission data corresponding to each sample light-emitting device, one can perform data fitting to obtain the second LED model formula corresponding to the target light-emitting device.

[0099] For example, the formula for the second LED model can be expressed as C(n) = f(A(m)*T(i),B(n)), where C(n) represents the target emission data, f() represents the relationship between the first emission data, the second emission data, the light source temperature drift data, and the target emission data of the emission device. A(m) represents the first emission data, T(i) represents the light source temperature drift data, and B(n) represents the second emission data. Here, m represents the number of target brightness values ​​in the first brightness set, n represents the number of brightness values ​​in the second brightness set, and i represents the emission data change ratio T(i) corresponding to a temperature shift of i degrees Celsius at each target brightness level, which can be used to determine the amount of emission data change.

[0100] In one embodiment, please refer to Figure 3a , Figure 3a This is a schematic diagram of a specific process for a light source calibration method provided in this application embodiment. When measuring the light emission data of a target light-emitting device, the method can collect the first light emission data of the target light-emitting device under multiple key target brightness levels, and obtain the second light emission data of the light source of the first reference light-emitting device under a second brightness set. Then, based on the first light emission data, the second light emission data, and the lamp bead model formula, the method can fit and generate complete target light emission data of the light source of the target light-emitting device under the second brightness set.

[0101] The second luminescence data and the light source temperature drift data can be pre-collected data. Lighting devices of the same type as the target lighting device can use the second luminescence data and the light source temperature drift data to generate the corresponding target luminescence data. Thus, a data fitting method can be used to collect luminescence data of the lighting device at a small number of key points (i.e., target brightness) based on the similarity between similar lighting devices, as well as the second luminescence data of the light source of the pre-collected similar lighting devices. This allows for the fitting of photometric data of a single reference lighting device and a small amount of luminescence data of the target lighting device to generate complete light source data, thereby greatly reducing the time for data acquisition and measurement. Then, the complete luminescence data obtained by fitting is used to calibrate the lighting device, which can reduce a lot of time costs in the production process.

[0102] In step 104, the target luminous device is calibrated based on the target luminous data.

[0103] Since the target emission data corresponding to the target emission device can be data characterizing the actual emission parameters of the target emission device, in order to achieve color consistency of emission devices of the same type, it is necessary to perform light source calibration processing on the target emission device based on the target emission data. For example, standard emission data corresponding to the target emission device can be obtained. The standard emission data can be standardized emission data used as a reference, which can include emission data corresponding to each brightness in a second brightness set. Then, based on the comparison between the target emission data and the standard emission data, the correction coefficient corresponding to each emission data at each brightness is calculated. The correction coefficient is written into the relevant software of the target emission device to perform light source calibration on the target emission device, resulting in the calibrated target emission device.

[0104] In one embodiment, please refer to Figure 3b , Figure 3b This is another specific flowchart illustrating a light source calibration method provided in this application embodiment. Taking a lamp as an example, when the lamp begins to receive light, it can be controlled to perform a self-test and poll to illuminate the light source within the lamp. This light source can be a light-emitting diode (LED). Specifically, when illuminating the target LED (i.e., the currently illuminated LED), it is necessary to wait for the LED to stabilize. Once the LED is stable, a spectrometer is used to measure the light emitted by the LED, obtaining the first luminous emission data of the lamp at each target brightness, where M is the number of target brightness levels. Then, pre-collected second luminous emission data can be acquired, and data fitting is performed based on the first and second luminous emission data to obtain complete luminous emission data, i.e., the target luminous emission data.

[0105] Conventional light source calibration requires collecting a large amount of emission data from the light source of the light-emitting device, resulting in high time costs. However, the light source calibration method provided in this application can generate complete emission data by fitting the complete emission data of a single light-emitting device's light source with a small amount of emission data from a similar target light-emitting device, based on the similarity between similar light-emitting devices. This can effectively reduce time costs during the production process of light-emitting devices.

[0106] As described above, this embodiment of the application acquires first luminous data of the light source of the target luminous device under a first brightness set; obtains second luminous data of the light source of the first reference luminous device under a second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference luminous device and the target luminous device are of the same device type; generates target luminous data of the light source of the target luminous device under the second brightness set based on the first and second luminous data; and performs light source calibration processing on the target luminous device based on the target luminous data. Thus, by fitting and generating target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data of the light source of the target luminous device under the first brightness set and the second luminous data of the light source of the same type of first reference luminous device under the second brightness set, a large amount of complete luminous data is generated from a small amount of luminous data, thereby achieving rapid acquisition of luminous data for light source calibration, effectively reducing time costs, and further improving the efficiency of light source calibration.

[0107] To better implement the above methods, embodiments of the present invention also provide a light source calibration device, which can be integrated into an electronic device, which can be a terminal.

[0108] For example, such as Figure 4 The diagram shown is a schematic representation of the light source calibration device provided in this embodiment of the application. The light source calibration device may include a data acquisition unit 201, an acquisition unit 202, a generation unit 203, and a calibration unit 204, as follows:

[0109] Acquisition unit 201 is used to acquire the first emission data of the light source of the target light-emitting device under the first brightness set;

[0110] The acquisition unit 202 is used to acquire the second emission data of the light source of the first reference light-emitting device under the second brightness set, wherein the number of brightness in the second brightness set is greater than the number of brightness in the first brightness set, and the first reference light-emitting device and the target light-emitting device have the same device type;

[0111] The generation unit 203 is used to generate target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data and the second luminous data;

[0112] The calibration unit 204 is used to perform light source calibration processing on the target light-emitting device based on the target light emission data.

[0113] In one embodiment, the first brightness set includes multiple target brightnesses, and the generation unit 203 is used to:

[0114] Acquire light source temperature drift data, which is used to indicate the amount of change in light emission data corresponding to each deviation from a preset temperature under each target brightness of the target light-emitting device in the first brightness set;

[0115] Based on the first luminescence data, the second luminescence data, and the light source temperature drift data, target luminescence data of the target luminescence device under the second brightness set is generated.

[0116] In one embodiment, the above-mentioned generation of target luminous data of the target luminous device under the second brightness set based on the first luminous data, the second luminous data, and the light source temperature drift data is specifically used for:

[0117] Determine the temperature of the light source of the target luminous device when collecting the first luminous data corresponding to the brightness of each target, and obtain the target temperature corresponding to the brightness of each target.

[0118] Based on the light source temperature drift data and the target temperature, the first emission data is corrected to obtain the corrected first emission data;

[0119] Based on the second luminescence data and the corrected first luminescence data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated.

[0120] In one embodiment, the aforementioned light source temperature drift data includes the thermal equilibrium temperature corresponding to each target brightness. Based on the light source temperature drift data and the target temperature, the first emission data is corrected to obtain corrected first emission data, specifically used for:

[0121] Calculate the difference between the thermal equilibrium temperature and the target temperature corresponding to the brightness of each target to obtain the temperature offset value corresponding to the brightness of each target;

[0122] Based on the light source temperature drift data and temperature offset value, determine the change in target luminance data corresponding to the brightness of each target;

[0123] Based on the change in the target emission data, the first emission data is corrected to obtain the corrected first emission data.

[0124] In one embodiment, the light source calibration device is further configured to:

[0125] The luminescence data of the light source of the second reference luminescent device at the initial temperature under each target brightness are collected to obtain the initial luminescence data of each target brightness at the initial temperature. The device type of the second reference luminescent device is the same as that of the target luminescent device.

[0126] Collect the luminescence data of the light source of the second reference luminescent device at the thermal equilibrium temperature under each target brightness, and obtain the thermal equilibrium luminescence data of each target brightness at the thermal equilibrium temperature.

[0127] Based on the initial temperature, initial luminescence data, thermal equilibrium temperature, and thermal equilibrium luminescence data corresponding to each target brightness, light source temperature drift data is generated.

[0128] In one embodiment, the first brightness set includes multiple target brightnesses, and the light source calibration device is further used for:

[0129] Acquire the third emission data of the light source of at least one third reference light-emitting device under the second brightness set, wherein the device type of the third reference light-emitting device is the same as that of the target light-emitting device;

[0130] Based on the third emission data, at least one data inflection point is determined for each third reference emission device;

[0131] Based on the data inflection point, multiple target brightnesses are determined in the second brightness set to obtain the first brightness set corresponding to the target light-emitting device.

[0132] In one embodiment, the above-mentioned determination of multiple target brightnesses in the second brightness set based on data inflection points is specifically used for:

[0133] The brightness corresponding to the data inflection point in the second brightness set is determined as the target brightness.

[0134] or,

[0135] Based on the preset brightness difference, the brightness corresponding to the data inflection point in the second brightness set is offset to obtain the offset brightness corresponding to each data inflection point; the brightness corresponding to the data inflection point and the offset brightness are determined as the target brightness.

[0136] As described above, in this embodiment, the acquisition unit 201 acquires first luminous data of the target light-emitting device's light source under a first brightness set; the acquisition unit 202 acquires second luminous data of the first reference light-emitting device's light source under a second brightness set, where the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type; the generation unit 203 generates target luminous data of the target light-emitting device's light source under the second brightness set based on the first and second luminous data; and the calibration unit 204 performs light source calibration processing on the target light-emitting device based on the target luminous data. Thus, by fitting and generating target luminous data of the target light-emitting device's light source under the second brightness set based on the first luminous data of the target light-emitting device's light source under the first brightness set and the second luminous data of the same type of first reference light-emitting device's light source under the second brightness set, a large amount of complete luminous data is generated from a small amount of luminous data, thereby achieving rapid acquisition of luminous data for light source calibration, effectively reducing time costs, and further improving light source calibration efficiency.

[0137] Accordingly, this application also provides an electronic device, which can be a terminal, such as a smartphone, tablet computer, laptop computer, touch screen, game console, personal computer (PC), personal digital assistant (PDA), or other terminal device. Alternatively, the electronic device can be a server.

[0138] like Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device 300 includes a processor 301 with one or more processing cores, a memory 302 with one or more computer-readable storage media, and a computer program stored in the memory 302 and executable on the processor. The processor 301 and the memory 302 are electrically connected. Those skilled in the art will understand that the electronic device structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0139] The processor 301 is the control center of the electronic device 300. It connects various parts of the electronic device 300 through various interfaces and lines. By running or loading software programs and / or units stored in the memory 302, and calling data stored in the memory 302, it executes various functions of the electronic device 300 and processes data. The processor 301 may be a CPU, GPU, network processor (NP), etc., and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0140] In this embodiment, the processor 301 in the electronic device 300 loads the instructions corresponding to the processes of one or more applications into the memory 302 according to the following steps, and the processor 301 runs the applications stored in the memory 302 to realize various functions, such as:

[0141] Collect first emission data of the light source of the target light-emitting device under a first brightness set; obtain second emission data of the light source of the first reference light-emitting device under a second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type; generate target emission data of the light source of the target light-emitting device under the second brightness set based on the first emission data and the second emission data; and perform light source calibration processing on the target light-emitting device based on the target emission data.

[0142] This solution involves collecting first emission data of the target light source under a first brightness set; acquiring second emission data of the light source of a first reference light source under a second brightness set, where the number of brightness values ​​in the second brightness set is greater than that in the first brightness set, and the first reference light source and the target light source are of the same type; generating target emission data of the target light source under the second brightness set based on the first and second emission data; and performing light source calibration on the target light source based on the target emission data. In this way, by fitting the first emission data of the target light source under the first brightness set and the second emission data of the light source of a similar first reference light source under the second brightness set, the target emission data of the target light source under the second brightness set is generated. This allows for the generation of a large amount of complete emission data from a small amount of emission data, enabling rapid acquisition of emission data for light source calibration, effectively reducing time costs, and further improving light source calibration efficiency.

[0143] Furthermore, the various functions implemented by running the application stored in memory 302 can also be found in the description of the foregoing embodiments, and will not be repeated here.

[0144] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0145] Optional, such as Figure 5 As shown, the electronic device 300 also includes: a touch display screen 303, a radio frequency circuit 304, an audio circuit 305, an input unit 306, and a power supply 307. The processor 301 is electrically connected to the touch display screen 303, the radio frequency circuit 304, the audio circuit 305, the input unit 306, and the power supply 307. Those skilled in the art will understand that... Figure 5 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0146] The touch display screen 303 can be used to display a graphical user interface (GUI) and receive operation commands generated by the user interacting with the GUI. The touch display screen 303 may include a display panel and a touch panel. The display panel can be used to display information input by the user or information provided to the user, as well as various graphical user interfaces of the electronic device. These graphical user interfaces can be composed of graphics, text, icons, video, and any combination thereof. Optionally, the display panel can be configured using a liquid crystal display (LCD), organic light-emitting diode (OLED), or other similar technologies. The touch panel can be used to collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel), generate corresponding operation commands, and execute the corresponding program according to the operation commands. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch location and the signal generated by the touch operation, transmitting the signal to the touch controller. The touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the processor 301. It can also receive and execute commands from the processor 301. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it transmits the information to the processor 301 to determine the type of touch event. Subsequently, the processor 301 provides corresponding visual output on the display panel based on the type of touch event. In this embodiment, the touch panel and the display panel can be integrated into the touch display screen 303 to achieve input and output functions. However, in some embodiments, the touch panel and the touch display screen 303 can be implemented as two independent components to achieve input and output functions. That is, the touch display screen 303 can also be used as part of the input unit 306 to achieve input functions.

[0147] The radio frequency circuit 304 can be used to transmit and receive radio frequency signals to establish wireless communication with network devices or other electronic devices, and to transmit and receive signals with network devices or other electronic devices.

[0148] Audio circuitry 305 can be used to provide an audio interface between a user and an electronic device via a speaker and a microphone. Audio circuitry 305 converts received audio data into electrical signals, transmits them to the speaker, and the speaker converts them into sound signals for output. Conversely, the microphone converts collected sound signals into electrical signals, which are then received by audio circuitry 305, converted back into audio data, and then processed by processor 301 before being transmitted via radio frequency circuitry 304 to, for example, another electronic device, or output to memory 302 for further processing. Audio circuitry 305 may also include an earphone jack to facilitate communication between peripheral headphones and electronic devices.

[0149] The input unit 306 can be used to receive input target video and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0150] Power supply 307 is used to supply power to various components of electronic device 300. Optionally, power supply 307 can be logically connected to processor 301 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. Power supply 307 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0151] although Figure 5 As not shown in the diagram, the electronic device 300 may also include a camera, sensor, wireless fidelity module, Bluetooth module, etc., which will not be described in detail here.

[0152] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be found in the relevant descriptions of other embodiments. It should be noted that the electronic device provided in this application embodiment and the light source calibration method described in the above embodiments belong to the same concept, and its specific implementation process is detailed in the above method embodiments, and will not be repeated here.

[0153] As can be seen from the above, the electronic device provided in this application embodiment can acquire first luminous data of the light source of the target luminous device under a first brightness set; acquire second luminous data of the light source of the first reference luminous device under a second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference luminous device and the target luminous device are of the same device type; generate target luminous data of the light source of the target luminous device under the second brightness set based on the first and second luminous data; and perform light source calibration processing on the target luminous device based on the target luminous data. Thus, by fitting and generating target luminous data of the light source of the target luminous device under the second brightness set based on the first luminous data of the light source of the target luminous device under the first brightness set and the second luminous data of the light source of the same type of first reference luminous device under the second brightness set, a large amount of complete luminous data can be generated with a small amount of luminous data, thereby achieving rapid acquisition of luminous data for light source calibration, effectively reducing time costs, and further improving light source calibration efficiency.

[0154] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0155] Therefore, embodiments of this application provide a computer-readable storage medium, including a computer program, which, when run on an electronic device, causes the electronic device to perform any of the light source calibration methods provided in the embodiments of this application. For example, the computer program can perform the steps of the following light source calibration method:

[0156] Collect first emission data of the light source of the target light-emitting device under a first brightness set; obtain second emission data of the light source of the first reference light-emitting device under a second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type; generate target emission data of the light source of the target light-emitting device under the second brightness set based on the first emission data and the second emission data; and perform light source calibration processing on the target light-emitting device based on the target emission data.

[0157] This solution involves collecting first emission data of the target light source under a first brightness set; acquiring second emission data of the light source of a first reference light source under a second brightness set, where the number of brightness values ​​in the second brightness set is greater than that in the first brightness set, and the first reference light source and the target light source are of the same type; generating target emission data of the target light source under the second brightness set based on the first and second emission data; and performing light source calibration on the target light source based on the target emission data. In this way, by fitting the first emission data of the target light source under the first brightness set and the second emission data of the light source of a similar first reference light source under the second brightness set, the target emission data of the target light source under the second brightness set is generated. This allows for the generation of a large amount of complete emission data from a small amount of emission data, enabling rapid acquisition of emission data for light source calibration, effectively reducing time costs, and further improving light source calibration efficiency.

[0158] Furthermore, the detailed steps of the above method can be found in the description of the foregoing embodiments, and will not be repeated here.

[0159] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0160] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0161] Since the computer program stored in the computer-readable storage medium can execute any of the light source calibration methods provided in the embodiments of this application, the beneficial effects that any of the light source calibration methods provided in the embodiments of this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0162] According to one aspect of this application, a computer program product is also provided, comprising a computer program stored in a computer-readable storage medium; when a processor of an electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, causing the electronic device to perform the methods provided in various optional implementations of the above embodiments.

[0163] In the above embodiments of the light source calibration device, computer-readable storage medium, electronic device, and computer program product, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes and beneficial effects of the light source calibration device, computer-readable storage medium, computer program product, electronic device, and their corresponding units described above can be referred to the description of the light source calibration method in the above embodiments, and will not be repeated here.

[0164] The foregoing has provided a detailed description of a light source calibration method, apparatus, electronic device, computer-readable storage medium, and computer program product provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A light source calibration method, characterized in that, include: Collect first emission data of the light source of the target emitting device under a first brightness set, wherein the first brightness set includes multiple target brightnesses; Acquire the second emission data of the light source of the first reference light-emitting device under the second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type; Acquire light source temperature drift data, which is used to indicate the amount of change in light emission data of the target light-emitting device at each target brightness of the first brightness set when it deviates from a preset temperature; Based on the first luminescence data, the second luminescence data, and the light source temperature drift data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated; The target luminescence device is calibrated based on the target luminescence data.

2. The light source calibration method as described in claim 1, characterized in that, The step of generating target luminescence data of the target luminescence device under the second brightness set based on the first luminescence data, the second luminescence data, and the light source temperature drift data includes: Determine the temperature of the light source of the target light-emitting device when collecting the first light emission data corresponding to each of the target brightnesses, and obtain the target temperature corresponding to each of the target brightnesses; Based on the light source temperature drift data and the target temperature, the first emission data is corrected to obtain the corrected first emission data; Based on the second luminescence data and the corrected first luminescence data, target luminescence data of the light source of the target luminescence device under the second brightness set is generated.

3. The light source calibration method as described in claim 2, characterized in that, The light source temperature drift data includes the thermal equilibrium temperature corresponding to each target brightness. The step of correcting the first luminescence data based on the light source temperature drift data and the target temperature to obtain corrected first luminescence data includes: Calculate the difference between the thermal equilibrium temperature and the target temperature corresponding to each target brightness to obtain the temperature offset value corresponding to each target brightness; Based on the light source temperature drift data and the temperature offset value, determine the change in target luminous data corresponding to the brightness of each target; Based on the change in the target emission data, the first emission data is corrected to obtain the corrected first emission data.

4. The light source calibration method as described in claim 1, characterized in that, Before acquiring the light source temperature drift data, the method further includes: The luminescence data of the light source of the second reference luminescent device at the initial temperature under each target brightness are collected to obtain the initial luminescence data of each target brightness at the initial temperature. The device type of the second reference luminescent device is the same as that of the target luminescent device. Collect the light emission data of the light source of the second reference light-emitting device at the thermal equilibrium temperature under each target brightness, and obtain the thermal equilibrium light emission data of each target brightness at the thermal equilibrium temperature, wherein the thermal equilibrium temperature is the temperature when the second reference light-emitting device is in thermal equilibrium state; Based on the initial temperature, initial luminescence data, thermal equilibrium temperature, and thermal equilibrium luminescence data corresponding to each target brightness, light source temperature drift data is generated.

5. The light source calibration method according to any one of claims 1 to 4, characterized in that, The first brightness set includes multiple target brightnesses. Before acquiring the first emission data of the light source of the target emission device under the first brightness set, the method further includes: Acquire third emission data of a light source from at least one third reference light-emitting device under a second brightness set, wherein the device type of the third reference light-emitting device is the same as that of the target light-emitting device; Based on the third emission data, at least one data inflection point corresponding to each of the third reference emission devices is determined; Based on the data inflection point, multiple target brightnesses are determined in the second brightness set to obtain the first brightness set corresponding to the target light-emitting device.

6. The light source calibration method as described in claim 5, characterized in that, The step of determining multiple target brightnesses in the second brightness set based on the data inflection point includes: The brightness corresponding to the data inflection point in the second brightness set is determined as the target brightness. or, The brightness of the data inflection point in the second brightness set is offset based on a preset brightness difference to obtain the offset brightness of each data inflection point; the brightness of the data inflection point and the offset brightness are determined as the target brightness.

7. A light source calibration device, characterized in that, include: The acquisition unit is used to acquire first emission data of the light source of the target light-emitting device under a first brightness set, wherein the first brightness set includes multiple target brightnesses; The acquisition unit is used to acquire the second emission data of the light source of the first reference light-emitting device under the second brightness set, wherein the number of brightness values ​​in the second brightness set is greater than the number of brightness values ​​in the first brightness set, and the first reference light-emitting device and the target light-emitting device are of the same device type. A generation unit is used to acquire light source temperature drift data, which is used to indicate the amount of change in light emission data of the target light-emitting device at each target brightness of the first brightness set when it deviates from a preset temperature. Based on the first light emission data, the second light emission data, and the light source temperature drift data, the target light emission data of the target light-emitting device at the second brightness set is generated. A calibration unit is used to perform light source calibration processing on the target light-emitting device based on the target light emission data.

8. An electronic device, characterized in that, It includes a processor and a memory, wherein the memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the light source calibration method according to any one of claims 1 to 6.

9. A storage medium, characterized in that, Includes a computer program, which, when run on an electronic device, causes the electronic device to perform the steps of the light source calibration method according to any one of claims 1 to 6.

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