Method, device and electronic device for confirming resolution grading of projection optical machine

Abstract

The embodiments of the present application provide a method, device, and electronic device for confirming the resolution grading of a projection optical machine. The method comprises: obtaining first reference values ​​corresponding to a plurality of projection optical machines, wherein the first reference values ​​are used to evaluate the resolution of the projection optical machines at target pixel points; classifying the plurality of projection optical machines into a first product group and a second product group based on the first reference values ​​and a reference average value; determining a first actual average value based on the first reference value; and classifying the target product group into a first product group and a second product group based on the first actual average value and the reference average value, wherein the target product group is either the first product group or the second product group.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of projection optical machinery. More specifically, the embodiments of the present application relate to a method, device, and electronic device for confirming the resolution grading of a projection optical machinery. Background Art

[0002] As projectors become increasingly widely used, users are paying more and more attention to their resolution. Resolution represents a projector's ability to distinguish detail and directly reflects the projector's ability and quality to project images. Methods for determining a projector's resolution include testing the Modulation Transfer Function (MTF) curve, TV Line testing, or spatial frequency response (SFR) testing.

[0003] In the existing technology, the resolution of a certain pixel of a projector is continuously observed, and the product grade of the projector is finally confirmed by the change of the resolution. This method of confirming the resolution of the projector is relatively cumbersome and inefficient.

[0004] Therefore, how to provide a method for confirming the resolution grading of projection optical machines to improve efficiency while meeting customer requirements. Summary of the Invention

[0005] The purpose of this application is to provide a new technical solution for a method and device for confirming the resolution grading of a projection optical machine and an electronic device.

[0006] In a first aspect, the present application provides a method for confirming the resolution grading of a projection optical machine. The method comprises:

[0007] Obtaining first reference values ​​corresponding to a plurality of projection light engines, wherein the first reference values ​​are used to evaluate the resolution of the projection light engines corresponding to target pixel points;

[0008] Dividing the plurality of projection light engines into a first product group and a second product group according to the first reference value and the reference average value;

[0009] determining a first actual average value based on the first reference value;

[0010] The target product group is classified according to the first actual average value and the reference average value to obtain a first product group and a second product group, wherein the target product group is a first category product group or a second category product group.

[0011] Optionally, reclassifying the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group includes:

[0012] The reference average value is greater than the first actual average value, and the second product group is classified to obtain a first product group and a second product group; or

[0013] The reference average value is smaller than the first actual average value, and the first product group is classified to obtain a first product group and a second product group.

[0014] Optionally, the first reference value is a modulation transfer function value.

[0015] Optionally, the method further includes:

[0016] Determine a second reference value based on the first reference value, wherein the second reference value is used to evaluate the minimum resolution of the projection optical engine at the target pixel point;

[0017] determining a second actual average value according to the first reference value corresponding to the second product group;

[0018] The second product group is divided into a first sub-product group and a second sub-product group according to the second reference value, the second actual average value, and the first reference value corresponding to the projection light engine in the second product group.

[0019] Optionally, the first actual average value is greater than the second reference value, and the second actual average value is greater than the second reference value and less than the first actual average value.

[0020] Optionally, the method further includes:

[0021] Obtaining the user's ideal product standards, wherein the ideal product standards include a product group corresponding to a projection light machine at a set target pixel point;

[0022] Obtaining a product group corresponding to each projector at a plurality of target pixel points, wherein the plurality of target pixel points include the set target pixel point;

[0023] Determine the final product group of each projection light machine based on the ideal product standard and the product group corresponding to each projection light machine at multiple target pixel points;

[0024] According to the final product group corresponding to each projection light machine, the user's ideal product is obtained.

[0025] Optionally, the multiple target pixel points include: target pixel points in the edge area and target pixel points in the center area of ​​the image projected by the projection light machine.

[0026] Optionally, the product group corresponding to each projection light engine at the non-set target pixel point is different from the final product group corresponding to each projection light engine.

[0027] In a second aspect, a device for confirming the resolution grading of a projection optical machine is provided. The device comprises:

[0028] an acquisition module for acquiring first reference values ​​corresponding to a plurality of projection light engines, wherein the first reference values ​​are used to evaluate the resolution of the projection light engines corresponding to a target pixel point;

[0029] a first classification module, which classifies the plurality of projection optical machines into a first product group and a second product group according to the first reference value and the reference average value;

[0030] a determining module, configured to determine a first actual average value according to the first reference value;

[0031] The second classification module classifies the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group, wherein the target product group is a first category product group or a second category product group.

[0032] In a third aspect, an electronic device is provided. The electronic device includes:

[0033] Memory for storing executable computer instructions;

[0034] The processor is configured to execute the method for confirming the resolution grading of the projection optical machine according to the first aspect under the control of the executable computer instructions.

[0035] According to an embodiment of the present application, a method for confirming the resolving power grading of projection optical engines is provided. The method performs a primary classification of the projection optical engines based on a first reference value and a reference average value of the projection optical engines. A portion of the product groups after the primary classification are further classified based on the first actual average value, and the results of the two classifications are combined to obtain a first product group and a second product group. This method simultaneously classifies multiple projection optical engines into product groups, improving the efficiency of confirming the product groups of the projection optical engines.

[0036] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0038] Figure 1The figure is a schematic diagram of a hardware configuration that can be used to implement a method for confirming the resolution grading of a projection optical machine according to an embodiment.

[0039] Figure 2 This is a flow chart of a method for confirming the resolution grading of a projection optical machine according to one embodiment. Figure 1 .

[0040] Figure 3 This is a flow chart of a method for confirming the resolution grading of a projection optical machine according to one embodiment. Figure 2 .

[0041] Figure 4 This is a flow chart of a method for confirming the resolution grading of a projection optical machine according to one embodiment. Figure 3 .

[0042] Figure 5 It is a principle block diagram of a device for determining the resolution grading of a projection optical machine according to one embodiment.

[0043] Figure 6 is a schematic diagram of the hardware structure of an electronic device according to an embodiment. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0045] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0046] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0047] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0048] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] <Hardware Configuration>

[0050] Figure 1 The present invention is a schematic diagram of the hardware configuration of an electronic device that can be used to implement a method for confirming the resolution grading of a projection optical machine according to an embodiment.

[0051] In one embodiment, Figure 1 As shown, the electronic device 100 may include a processor 110, a memory 120, an interface device 130, a communication device 140, a display device 150, an input device 160, an audio device 170, and a projector 180. The processor 110 may include, but is not limited to, a central processing unit (CPU), a microprocessor (MCU), etc. The memory 120 may include, for example, ROM (read-only memory), RAM (random access memory), and non-volatile memory such as a hard disk. The interface device 130 may include, for example, various bus interfaces, such as a serial bus interface (including a USB interface) and a parallel bus interface. The communication device 140 may be capable of wired or wireless communication. The display device 150 may be, for example, an LCD display, an LED display, or a touchscreen display. The input device 160 may include, for example, a touchscreen and a keyboard. The audio device 170 may include a microphone and a speaker. The microphone may be used to input voice information. The speaker may be used to output voice information. The projector is used to project an image and output the image to the processor 110.

[0052] Despite Figure 1 , multiple devices of the electronic device 100 are shown; however, the present invention may only involve some of the devices, for example, the electronic device 100 only involves the processor 110 and the memory 120.

[0053] In this embodiment, the memory 120 of the electronic device 100 is used to store program instructions for controlling the processor 110 to execute the method for confirming the resolving power grading of a projection optical engine. A skilled person can design these instructions based on the disclosed solution. How these instructions control the processor's operation is well known in the art and will not be described in detail here.

[0054] It should be understood that Figure 1 The illustrated electronic device 100 is for illustrative purposes only and is in no way intended to limit the present description, its application, or uses.

[0055] In the above description, a person skilled in the art can design instructions according to the solution provided in this application. How instructions control the operation of a processor is well known in the art and will not be described in detail here.

[0056] <Method Example>

[0057] The embodiment of the present application provides a method for confirming the resolution grading of a projection optical machine, and the method for confirming the resolution grading of a projection optical machine can be performed by Figure 1 The electronic device 100 shown is implemented as Figure 2 As shown, the method for confirming the resolution grading of a projection optical machine includes the following steps: step S2100 to step S2400.

[0058] Step S2100: Obtaining first reference values ​​corresponding to a plurality of projection light engines, wherein the first reference values ​​are used to evaluate the resolution of the projection light engine corresponding to the target pixel point.

[0059] In this step, the first reference values ​​corresponding to the multiple projection light machines are obtained, specifically, the resolution of the multiple projection light machines at the corresponding same target pixel point (which can be a pixel point in the edge area of ​​the image screen, or a pixel point in the center area of ​​the image screen) is obtained.

[0060] For example, a projection machine is used to project an image, and the resolution value of a pixel point in the image is used as a first reference value of the projection machine at a target pixel point.

[0061] In a specific embodiment, the plurality of projectors include a first projector, a second projector, and a third projector. The first projector projects a first image, the second projector projects a second image, and the third projector projects a third image; the resolution value of the first image at a pixel point is obtained as the first reference value of the first projector at the pixel point. The resolution value of the second image at a pixel point (the same pixel position as the pixel point of the first image) is obtained as the first reference value of the second projector at the pixel point; the resolution value of the third image at a pixel point (the same pixel position as the pixel point of the first image) is obtained as the first reference value of the third projector at the pixel point. For example, the sizes of the first image, the second image, and the third image can be the same. For example, multiple projectors are all projected onto the same screen.

[0062] According to the first reference values ​​of the plurality of projection light machines at the corresponding same target pixel point, the plurality of projection light machines are finally classified and processed to meet user requirements.

[0063] Step S2200: Dividing the plurality of projection light engines into a first product group and a second product group according to the first reference value and the reference average value;

[0064] In step S2100, first reference values ​​corresponding to the same target pixel point for multiple projectors are obtained. Specifically, one projector corresponds to one first reference value, two projectors correspond to two first reference values, and multiple projectors correspond to multiple first reference values. Therefore, in step S2200, the multiple projectors are divided into a first product group and a second product group based on the multiple first reference values ​​and the reference average.

[0065] In this step, the reference average is an empirical value, i.e., an estimated reference average before obtaining the first reference values ​​corresponding to the multiple projection light engines. In other words, based on the multiple first reference values ​​and the estimated reference average, the multiple projection light engines are roughly divided into the first product group and the second product group.

[0066] For example, by comparing a plurality of first reference values ​​with a reference average value, a plurality of projection light engines are divided into a first product group and a second product group.

[0067] In a specific embodiment, the first reference value is greater than the reference average value, that is, the projection light engine has a strong ability to resolve the image at the target pixel point. At this time, the projection light engine corresponding to the first reference value is classified into the first product group.

[0068] The first reference value is smaller than the reference average value, that is, the projection light machine has a weak ability to resolve the image at the target pixel point. In this case, the projection light machine corresponding to the first reference value is classified into the second product group.

[0069] If the first reference value is equal to the reference average value, that is, the projector's ability to resolve the image at the target pixel is acceptable, then the projector corresponding to the first reference value is classified into the first or second product group. Generally, projectors corresponding to this first reference value are classified into the second product group.

[0070] The first reference value corresponding to the projection light machine in the first product group is greater than the reference average value, and the first reference value corresponding to the projection light machine in the second product group is less than or equal to the reference average value.

[0071] It should be noted that, generally, the multiple projection light engines can be classified into the first and second product groups based on the multiple first reference values ​​and reference average values ​​corresponding to the multiple projection light engines. However, in special cases, due to an inappropriate estimation of the reference average value, the corresponding first reference values ​​of each projection light engine may be greater than the reference average value, or less than or equal to the reference average value. In this case, the reference average value may be considered invalid. If the reference average value is confirmed to be invalid, the process proceeds directly to step S2300.

[0072] Step S2300: determining a first actual average value according to the first reference value;

[0073] In step S2100, the first reference values ​​corresponding to the same target pixel point of multiple projection light machines are obtained, that is, one projection light machine corresponds to one first reference value, two projection light machines correspond to two first reference values, and multiple projection light machines correspond to multiple first reference values.

[0074] In step S2300, a first actual average value is determined based on multiple first reference values. For example, the multiple first reference values ​​can be added and divided by the number of first reference values, and the resulting value can be used as the first actual average value; or the first actual average value can be determined based on whether the multiple first reference values ​​are odd or even. For example, if the multiple first reference values ​​are odd, the multiple first reference values ​​are arranged in order of magnitude, and the first reference value located in the middle of the multiple first reference values ​​is used as the first actual average value. For example, if the multiple first reference values ​​are even, the multiple first reference values ​​are arranged in order of magnitude, and the average of the two first reference values ​​located in the middle of the multiple first reference values ​​is used as the first actual average value; or a normal distribution curve is plotted for the multiple first reference values, and the median of the normal distribution curve is used as the first actual average value.

[0075] Generally, the first actual average value is determined based on the odd and even numbers of the multiple first reference values, or the median in the normal distribution curve is used as the first actual average value, so that the classification of multiple projection optical machines is more meaningful.

[0076] Step S2400: classifying the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group, wherein the target product group is a first category product group or a second category product group.

[0077] In step S2300, a first actual average value is determined based on a plurality of first reference values, and the target product group is classified according to the relationship between the calculated first actual average value and the reference average value to obtain a first product group and a second product group.

[0078] For example, the first reference value corresponding to the projection light machine in the first product group is greater than the first actual average value, that is, the projection light machine has a strong ability to resolve the image at the target pixel point. At this time, the projection light machine corresponding to the first reference value is divided into the first product group.

[0079] The first reference value corresponding to the projection light machine in the second product group is less than or equal to the first actual average value, that is, the projection light machine has a weak ability to resolve the image at the target pixel point. At this time, the projection light machine corresponding to the first reference value is divided into the second product group.

[0080] The first product group and the second product group correspond to the product grades of the projection light machine. For example, the first product group corresponds to the product grade of the projection light machine as Grade A (qualified products), and the second product group corresponds to the product grade of the projection light machine as Grade B (substandard products).

[0081] In this step, when classifying the target product group based on the relationship between the first actual average value and the reference average value, the target product group is not all corresponding projection light machines, but only the first category product group or the second category product group (that is, some of the projection light machines among all the projection light machines) are classified.

[0082] In an embodiment of the present application, a method for confirming the resolving power grading of projection optical engines is provided. The method performs a primary classification of the projection optical engines based on a first reference value and a reference average value of the projection optical engines. A portion of the product groups after the primary classification are further classified based on the first actual average value, and the two classification results are combined to obtain a first product group and a second product group. This method simultaneously classifies multiple projection optical engines into product groups, improving the efficiency of confirming the product groups of the projection optical engines.

[0083] In addition, the present application provides a method for confirming the resolution grading of projection optical machines, which classifies multiple projection optical machines into product groups to meet the different needs of users. For example, users can match different devices according to projection optical machines in different product groups to facilitate user operation.

[0084] In addition, according to the method for confirming the resolution grading of projection optical machines provided in this application, the first reference value corresponding to a single projection optical machine is weakened, and the multiple first reference values ​​corresponding to multiple projection optical machines are segmented according to the reference average value and the first actual average value, thereby reducing the sensitivity of the projection optical machine to the first reference value, so that the method for confirming the projection optical machine according to the resolution of the projection optical machine is consistent (multiple projection optical machines are confirmed using the same confirmation method).

[0085] In one embodiment, classifying the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group includes:

[0086] The reference average value is greater than the first actual average value, and the second product group is classified to obtain a first product group and a second product group; or

[0087] The reference average value is smaller than the first actual average value, and the first product group is classified to obtain a first product group and a second product group.

[0088] In this embodiment, the method of classifying the target product group according to the first actual average value and the reference average value to obtain the first product group and the second product group specifically includes: when the reference average value is greater than the first actual average value, classifying the second category product group to obtain the first product group and the second product group; when the reference average value is less than the first actual average value, classifying the first category product group to obtain the first product group and the second product group.

[0089] Specifically, when the reference average value is greater than the first actual average value, the second product group is classified into the first product group and the second product group. This can be understood as follows: before obtaining the first reference values ​​corresponding to the multiple projection light engines, the estimated reference average value is greater than the first actual average value. That is, based on the estimated reference average value, the projection light engines that originally belonged to the first product group are now classified into the second product group. In this case, the second product group needs to be classified. That is, based on the first actual average value and the first reference value of the projection light engines in the second product group, the projection light engines that originally belonged to the first product group are separated from the second product group. For example, because the reference average value is greater than the first actual average value, there are projection light engines in the second product group whose first reference value is greater than the first actual average value. These projection light engines are then classified into the first product group. At this time, after classifying the second product group, the projection light machines in the first product group divided according to the reference average value and the projection light machines originally belonging to the first product group that were divided from the second product group are the first product group; in the second product group, excluding the projection light machines originally belonging to the first product group that were divided, the remaining projection light machines are the second product group.

[0090] The first reference values ​​of the projection light engines in the first product group are all greater than the first actual average value, and the first reference values ​​of the projection light engines in the second product group are all less than or equal to the first actual average value.

[0091] Specifically, when the reference average value is less than the first actual average value, the first product group is classified into a first product group and a second product group. This can be understood as follows: prior to obtaining the first reference values ​​corresponding to the plurality of projection light engines, the estimated reference average value is less than the first actual average value. That is, based on the estimated reference average value, projection light engines that originally belonged to the second product group are now classified into the first product group. At this time, the first product group is classified by separating the projection light engines that originally belonged to the second product group from the first product group based on the first actual average value and the first reference value of the projection light engines in the first product group. For example, if the reference average value is less than the first actual average value, and there are projection light engines in the first product group whose first reference value is less than the first actual average value, such projection light engines are classified into the second product group. At this time, after classifying the first product group, the projection light machines in the second product group divided according to the reference average value and the projection light machines originally belonging to the second product group that were divided from the first product group are the second product group; in the first product group, excluding the projection light machines originally belonging to the second product group that were divided, the remaining projection light machines are the first product group.

[0092] The first reference values ​​of the projection light engines in the first product group are all greater than the first actual average value, and the first reference values ​​of the projection light engines in the second product group are all less than or equal to the first actual average value.

[0093] Therefore, in the embodiment of the present application, the first product group and the second product group are classified according to the relationship between the first actual average value and the reference average value, and the multiple projector light machines to be tested are divided into the first product group and the second product group.

[0094] In one embodiment, the first reference value is a modulation transfer function value.

[0095] In this embodiment, the first reference value is defined. For example, the first reference value is a modulation transfer function (MTF) value. Characterizing the resolution of a projection engine by detecting the modulation transfer function of the projection engine is a common method used by those skilled in the art. Alternatively, the resolution of a projection engine can be characterized by a TV Line test or a spatial frequency response (SFR) test. Characterizing the resolution of a projection engine by using a TV Line test or a spatial frequency response (SFR) test is a common method used by those skilled in the art.

[0096] In an embodiment of the present application, a method for confirming the resolving power grading of projection optical engines is provided. The method performs a primary classification of the projection optical engines based on a first reference value and a reference average value of the projection optical engines. A portion of the product groups after the primary classification are further classified based on the first actual average value, and the two classification results are combined to obtain a first product group and a second product group. This method simultaneously classifies multiple projection optical engines into product groups, improving the efficiency of confirming the product groups of the projection optical engines.

[0097] In one embodiment, Figure 3 As shown, the method for confirming the resolution grading of a projection optical machine further includes: steps S3100 to S3300.

[0098] Step S3100: determining a second reference value based on the first reference value, wherein the second reference value is used to evaluate the minimum resolution of the projection optical engine at the target pixel point;

[0099] Step S3200: determining a second actual average value according to the first reference value corresponding to the second product group;

[0100] Step S3300: Divide the second product group into a first sub-product group and a second sub-product group according to the second reference value, the second actual average value, and the first reference value corresponding to the projection light engine in the second product group.

[0101] In order to avoid the situation in which the product performance of the projection light machine in the product group whose first reference value is less than or equal to the first actual average value cannot meet the user requirements, the projection light machines in the second product group (the first reference value of the projection light machine in the second product group is less than or equal to the first actual average value) are classified to meet the user requirements; that is, the user's requirement for the first reference value of the projection light machine is not the second reference value (the minimum specification, that is, the set minimum resolution of the projection light machine). In other words, the user's requirement for the first reference value of the projection light machine is often greater than the second reference value. To be on the safe side, the projection light machines in the second product group (the first reference value of the projection light machine in the second product group is less than or equal to the first actual average value) are classified to meet the user requirements.

[0102] In step S3200, a second reference value is determined based on multiple first reference values ​​of multiple projection light machines, wherein the second reference value represents the lowest resolution of the multiple projection light machines at the target pixel point, that is, the lowest specification of the resolution of the projection light machine at the target pixel point.

[0103] For example, multiple first reference values ​​of multiple projection light engines are arranged in order of magnitude, wherein the second reference value is a value smaller than the smallest first reference value among the multiple first reference values, or the second reference value is a value equal to the smallest first reference value among the multiple first reference values. Therefore, the second reference value is a reference value set based on the multiple first reference values.

[0104] Generally speaking, when the user's requirement for the first reference value of the projector at the target pixel point is equal to the second reference value, there is no need to classify the projector in the second product group, because the projector in the first product group and the projector in the second product group both meet the user's requirement;

[0105] If the user's requirement for the first reference value of the projector at the target pixel is greater than the first actual average value, there is no need to classify the projector in the second product group because the projector in the first product group meets the user's requirement. In other words, the user's requirement for the first reference value of the projector at the target pixel is higher.

[0106] If the user's requirement for the first reference value of the projector at the target pixel is greater than the second reference value but less than or equal to the first actual average value, the projectors in the second product group need to be subdivided to meet the user's requirement. This situation is the majority of user requirements, that is, the user's requirement for the first reference value of the projector at the target pixel is not very high, but it is often higher than the preset second reference value. The method for confirming the resolution grading of the projector provided in this embodiment is mainly aimed at this user requirement.

[0107] In step S3200, a second actual average value is determined based on the multiple first reference values ​​of the projection light engines in the second product group. The method for determining the second actual average value is the same as the method for determining the first actual average value described above. The determination of the second actual average value will not be repeated here. It is clear that the second actual average value is greater than the second reference value and less than the first actual average value.

[0108] In step S3300, based on the set second reference value and the calculated second actual average value, the projection light engines in the second product group are divided into a first sub-product group and a second sub-product group, wherein the first reference value of the projection light engines in the first sub-product group is greater than the second actual average value, and the first reference value of the projection light engines in the second sub-product group is less than or equal to the second actual average value and greater than or equal to the second reference value. Whether the first reference value of the projection light engines in the first sub-product group needs to include or be equal to the second actual average value can be divided according to user requirements. The first sub-product group is a product group that meets user requirements, and the second sub-product group is generally a product group that does not meet user requirements.

[0109] Therefore, in this embodiment, in order to avoid some products of the projection light machine in the divided second product group (the first reference value of the projection light machine in the second product group is less than or equal to the first actual average value) not meeting user requirements, the products in the second product group are finely graded to ultimately meet user requirements.

[0110] In one embodiment, the first actual average value is greater than the second reference value, and the second actual average value is greater than the second reference value and less than the first actual average value.

[0111] In this embodiment, the second reference value is the lowest specification value of the first reference value among multiple projection light engines; the first actual average value is the value that distinguishes the first product group from the second product group, so the first actual average value must be greater than the second reference value.

[0112] In this embodiment, the second actual average value is a value that distinguishes the first sub-product group from the second sub-product group, that is, the projection light machine in the second product group is distinguished based on the second actual average value, so the second actual average value must be greater than the second reference value and less than the first actual average value.

[0113] In one embodiment, Figure 4 As shown, the method for confirming the resolution grading of the projection optical machine further includes: steps S4100 to S4400;

[0114] Step S4100: Acquire the user's ideal product standard, wherein the ideal product standard includes a product group corresponding to the projection light machine at the set target pixel point;

[0115] Step S4200: obtaining a product group corresponding to a plurality of target pixel points of each projection optical machine, wherein the plurality of target pixel points include the set target pixel point;

[0116] Step S4300: determining a final product group of each projection light engine according to an ideal product standard and a product group corresponding one-to-one to a plurality of target pixel points of each projection light engine.

[0117] Step S4400: Obtain the user's ideal product based on the final product group corresponding to each projection light engine.

[0118] Generally speaking, different users have different requirements for the position of the projector at the target pixel point. For example, some users have requirements for the first reference value of the projector in the edge area of ​​the image screen, but not the first reference value of the projector in the center area of ​​the image screen, for example, requiring the first reference value of the projector in the edge area of ​​the image screen to be higher. For example, some users have requirements for the first reference value of the projector in the sub-edge area of ​​the image screen, but not the first reference value of the projector in the center area of ​​the image screen, for example, requiring the first reference value of the projector in the sub-edge area of ​​the image screen to be higher.

[0119] Because different users have different requirements for the position of target pixels for projectors, the projector's first reference values ​​at multiple target pixels are tested. However, when testing the first reference values ​​at multiple target pixels, the projectors are not grouped into product groups based on their first reference values ​​at multiple target pixels. This is because grouping projectors into product groups based on the first reference values ​​of multiple target pixels for the same projector is meaningless.

[0120] For example, multiple target pixel points include target pixel a, target pixel b, and target pixel c. Target pixel a, target pixel b, and target pixel c are located at different pixel positions in the same image. According to the first reference value of the projector at target pixel a, the projector may be classified into the first product group. According to the first reference value of the projector at target pixel b, the projector may be classified into the second product group. According to the first reference value of the projector at target pixel c, the projector may be classified into the second product group. Since the final product group confirmation of the projector cannot be performed based on the first reference values ​​of the same projector at multiple target pixel points, in this embodiment, a method for confirming the resolution grading of the projector is provided to achieve the confirmation of the final product group of the projector when testing multiple target pixel points.

[0121] In step S4100, the user's ideal product standard is obtained, that is, the final product group of the projection light machine is confirmed according to the user's requirements. The user's ideal product standard includes the projection light machine's requirements for the first reference value at a certain target pixel point. For example, the ideal product requirement of user A can be limited to target pixel point a (the target pixel point set for user A), and the projection light machine is the first product group, that is, the projection light machine is required to be at target pixel point a, and the first reference value of the projection light machine needs to be greater than the first actual average value. The ideal product requirement of user B is target pixel point b (the target pixel point set for user B), and the projection light machine is the first product group, that is, the projection light machine is required to be at target pixel point b, and the first reference value of the projection light machine needs to be greater than the first actual average value.

[0122] In step S4200, the product group corresponding to each projector at multiple target pixel points is obtained. Specifically, the product group corresponding to each projector at each target pixel point is obtained based on the first reference values ​​corresponding to the multiple target pixel points of the projector.

[0123] For example, by obtaining the product groups corresponding to multiple projectors at target pixel a, the projectors may be in the first product group or the second product group. The method for obtaining the product groups corresponding to multiple projectors at target pixel a is as described above, and the product group of the projector is confirmed based on the reference average value, multiple first reference values, and the first actual average value.

[0124] By obtaining the product groups corresponding to the multiple projectors when they are at target pixel b, the projectors may be in the first product group or the second product group. The method for obtaining the product groups corresponding to the multiple projectors when they are at target pixel b is as described above, and the product group of the projectors is confirmed based on the reference average value, multiple first reference values, and the first actual average value.

[0125] By obtaining the product groups corresponding to the multiple projectors when the projectors are at target pixel c, the projectors may be in the first product group or the second product group. The method for obtaining the product groups corresponding to the multiple projectors when the projectors are at target pixel c is as described above, and the product group of the projectors is confirmed based on the reference average value, multiple first reference values, and the first actual average value.

[0126] Since each projector at target pixel a may be in the first product group or the second product group, each projector at target pixel b may be in the first product group or the second product group, and each projector at target pixel c may be in the first product group or the second product group, there is no way to accurately determine the final product group of the projector by combining the product groups of the projector at target pixel a, target pixel b, and target pixel c. Therefore, according to step S4300, the final product group of each projector is determined.

[0127] In order to meet different user requirements, the multiple target pixel points need to include the user's set target pixel point, that is, the multiple target pixel points need to include target pixel point a and target pixel point b.

[0128] To meet different user requirements, the plurality of target pixels is preferably able to cover the entire surface of the image. For example, 26 target pixels may be acquired from the image, or a greater number of target pixels may be acquired. For example, the 26 target pixels may be distributed over the entire surface of the image, with some target pixels being distributed circumferentially at the edge of the image, and others being distributed circumferentially at the center of the image.

[0129] In step S4300, the final product group of each projection light engine is confirmed based on the user's ideal product standards and the product group corresponding to each projection light engine at multiple target pixel points. The final product group of the projection light engine can be divided into a first product group and a second product group.

[0130] For example, the user requires that the product group of the projection light machine be the first product group when setting the target pixel point. At this time, as long as the projector light machine is setting the target pixel point, the product group of the projection light machine is the first product group. When the projector light machine is at other target pixel points, the product group of the projection light machine can be the first product group or the second product group. At this time, the final product group of the projection light machine can be considered to be the first product group.

[0131] Or the user requires to set two target pixel points, and requires that at the first target pixel point, the product group corresponding to the projection optical machine is the first product group, and at the second target pixel point, the product group corresponding to the projection optical machine is the second product group; in this case, when the projection optical machine is at the first target pixel point, the product group corresponding to the projection optical machine is the first product group, and when the projection optical machine is at the second target pixel point, the product group corresponding to the projection optical machine is the second product group. When the projection optical machine is at other target pixel points, the product group of the projection optical machine can be either the first product group or the second product group. In this case, the final product group of the projection optical machine can be the first product group. Or in this case, when the projection optical machine is at the first target pixel point, the product group corresponding to the projection optical machine is the first product group, and when the projection optical machine is at the second target pixel point, the product group corresponding to the projection optical machine is the first product group. When the projection optical machine is at other target pixel points, the product group of the projection optical machine can be either the first product group or the second product group. In this case, the final product group of the projection optical machine can be the first product group.

[0132] For example, for the ideal product standard of user A, the product group of the projection light machine at target pixel point a is the first product group, and the product group of the projection light machine at other target pixel points can be the first product group or the second product group. At this time, the final product group of the projection light machine is confirmed as the first product group.

[0133] According to the ideal product standard of user A, the product group of the projection light machine at target pixel a is the second product group. At this time, regardless of whether the product group of the projection light machine at other target pixel points is the first product group or the second product group, the final product group of the projection light machine is confirmed as the second product group.

[0134] For example, for the ideal product standard of user B, the product group of the projection light machine at target pixel point b is the first product group, and the product group of the projection light machine at other target pixel points can be the first product group or the second product group. At this time, the final product group of the projection light machine is confirmed as the first product group.

[0135] According to the ideal product standard of user B, the product group of the projection light machine at the target pixel point b is the second product group. At this time, regardless of whether the product group of the projection light machine at other target pixel points is the first product group or the second product group, the final product group of the projection light machine is confirmed as the second product group.

[0136] In step S4300, the final product group of the projection light machine is determined. Therefore, in step S4400, the user's ideal product is obtained from multiple projection light machines based on the final determined product group of the projection light machine and the user's ideal product standards.

[0137] Therefore, in this embodiment, by providing a method for confirming the resolution grading of a projection optical machine, when the projection optical machine performs grading tests on multiple target pixel points, the final product group of the projection optical machine is determined according to the user's ideal product standards.

[0138] In one embodiment, the plurality of target pixel points include: target pixel points in an edge area and target pixel points in a center area of ​​the image projected by the projection light machine.

[0139] In this embodiment, the areas of multiple target pixel points are limited, where the position of the target pixel point can be the edge area position of the image screen, and the position of the target pixel point can be the center area position of the image screen, so that the positions of multiple target pixel points cover the entire area of ​​the image screen to meet the different needs of different users.

[0140] In one embodiment, the product group corresponding to each projection light engine at a non-set target pixel point is different from the final product group corresponding to each projection light engine.

[0141] In this embodiment, the product group corresponding to the non-target pixel point of the projection light machine may be different from the product group finally corresponding to the projection light machine. For example, the final product group corresponding to the projection light machine is the first product group, while the product group corresponding to the non-set target pixel point of the projection light machine is allowed to be the second product group. This situation also meets user requirements.

[0142] In an embodiment of the present application, a method for confirming the resolving power grading of projection optical engines is provided. The method performs a primary classification of the projection optical engines based on a first reference value and a reference average value of the projection optical engines. A portion of the product groups after the primary classification are further classified based on the first actual average value, and the two classification results are combined to obtain a first product group and a second product group. This method simultaneously classifies multiple projection optical engines into product groups, improving the efficiency of confirming the product groups of the projection optical engines.

[0143] In addition, the present application provides a method for confirming the resolution grading of projection optical machines, which classifies multiple projection optical machines into product groups to meet the different needs of users. For example, users can match different devices according to projection optical machines in different product groups to facilitate user operation.

[0144] In addition, according to the method for confirming the resolution grading of projection optical machines provided in this application, the first reference value corresponding to a single projection optical machine is weakened, and the multiple first reference values ​​corresponding to multiple projection optical machines are segmented according to the reference average value and the first actual average value, thereby reducing the sensitivity of the projection optical machine to the first reference value, so that the method for confirming the projection optical machine according to the resolution of the projection optical machine is consistent (multiple projection optical machines are confirmed using the same confirmation method).

[0145] <Device Example>

[0146] The embodiment of the present application provides a device for confirming the resolution grading of a projection optical machine, such as Figure 5 As shown, the device 1000 for confirming the resolution grading of a projection optical machine may include an acquisition module 1001 , a first classification module 1002 , a determination module 1003 and a second classification module 1004 .

[0147] An acquisition module 1001 is configured to acquire first reference values ​​corresponding to a plurality of projection optical machines, wherein the first reference values ​​are used to evaluate the resolution of the projection optical machine corresponding to a target pixel point;

[0148] A first classification module 1002 is configured to classify the plurality of projection light engines into a first product group and a second product group according to the first reference value and the reference average value;

[0149] A determination module 1003 is configured to determine a first actual average value based on the first reference value;

[0150] The second classification module 1004 classifies the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group, wherein the target product group is a first category product group or a second category product group.

[0151] In an embodiment of the present application, a method for confirming the resolving power grading of projection optical engines is provided. The method performs a primary classification of the projection optical engines based on a first reference value and a reference average value of the projection optical engines. A portion of the product groups after the primary classification are further classified based on the first actual average value, and the two classification results are combined to obtain a first product group and a second product group. This method simultaneously classifies multiple projection optical engines into product groups, improving the efficiency of confirming the product groups of the projection optical engines.

[0152] In addition, the present application provides a method for confirming the resolution grading of projection optical machines, which classifies multiple projection optical machines into product groups to meet the different needs of users. For example, users can match different devices according to projection optical machines in different product groups to facilitate user operation.

[0153] In addition, according to the method for confirming the resolution grading of projection optical machines provided in this application, the first reference value corresponding to a single projection optical machine is weakened, and the multiple first reference values ​​corresponding to multiple projection optical machines are segmented according to the reference average value and the first actual average value, thereby reducing the sensitivity of the projection optical machine to the first reference value, so that the method for confirming the projection optical machine according to the resolution of the projection optical machine is consistent (multiple projection optical machines are confirmed using the same confirmation method).

[0154] <Equipment Example>

[0155] The present application also provides an electronic device. Figure 6 As shown, the electronic device 1100 includes a memory 1101 and a processor 1102 .

[0156] The memory 1101 can be used to store executable computer instructions.

[0157] The processor 1102 can be used to execute the method for confirming the resolution grading of the projection optical machine according to the method embodiment of the present application under the control of the executable computer instructions.

[0158] In another embodiment, the electronic device 1100 may include the above projection optical machine resolution grading confirmation device 1000.

[0159] In one embodiment, each module of the above projection optical engine resolving power grading confirmation device 1000 can be implemented by the processor 1102 running computer instructions stored in the memory 1101 .

[0160] According to an embodiment of the present application, a method for confirming the resolving power grading of projection optical engines is provided. The method performs a primary classification of the projection optical engines based on a first reference value and a reference average value of the projection optical engines. A portion of the product groups that have undergone the primary classification are then reclassified based on the first actual average value. The results of the two classifications are combined to obtain a first product group and a second product group. This method simultaneously classifies multiple projection optical engines into product groups, improving the efficiency of confirming the product groups of the projection optical engines.

[0161] In addition, the present application provides a method for confirming the resolution grading of projection optical machines, which classifies multiple projection optical machines into product groups to meet the different needs of users. For example, users can match different devices according to projection optical machines in different product groups to facilitate user operation.

[0162] In addition, according to the method for confirming the resolution grading of projection optical machines provided in this application, the first reference value corresponding to a single projection optical machine is weakened, and the multiple first reference values ​​corresponding to multiple projection optical machines are segmented according to the reference average value and the first actual average value, thereby reducing the sensitivity of the projection optical machine to the first reference value, so that the method for confirming the projection optical machine according to the resolution of the projection optical machine is consistent (multiple projection optical machines are confirmed using the same confirmation method).

[0163] <Computer-readable storage medium>

[0164] The embodiment of the present application further provides a computer-readable storage medium having computer instructions stored thereon. When the computer instructions are executed by a processor, the method for confirming the resolution grading of the projection optical machine provided in the embodiment of the present application is executed.

[0165] The embodiments of the present application may be systems, methods, and / or computer program products. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the embodiments of the present application.

[0166] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0167] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0168] The computer program instruction for performing the operation of the embodiment of the application can be an assembly instruction, an instruction set architecture (ISA) instruction, a machine instruction, a machine-related instruction, a microcode, a firmware instruction, a state setting data or a source code or an object code written in any combination of one or more programming languages, wherein the programming language comprises an object-oriented programming language such as Smalltalk, C++, and a conventional procedural programming language such as "C" language or similar programming language. The computer readable program instruction can be performed completely on the user's computer, partially on the user's computer, performed as an independent software package, partly on the user's computer and partly on a remote computer, or performed completely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer by any type of network including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (such as utilizing an Internet service provider to connect by the Internet). In certain embodiments, by utilizing the state information of computer readable program instruction to carry out personalized customization electronic circuit, such as programmable logic circuit, field programmable gate array (FPGA) or programmable logic array (PLA), this electronic circuit can perform computer readable program instruction, thereby realizing the various aspects of the embodiment of the application.

[0169] Various aspects of the embodiments of the present application are described herein with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer-readable program instructions.

[0170] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0171] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0172] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of an instruction, and the module, program segment or part of the instruction contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are all equivalent.

[0173] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles of the embodiments, their practical applications, or technical improvements in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein. The scope of the embodiments of the present application is defined by the appended claims.

Claims

1. A method for confirming the resolution grading of a projection optical machine, characterized by: The method comprises: Acquire first reference values ​​corresponding to a plurality of projection optical engines, wherein the first reference values ​​are used to evaluate the resolution of the projection optical engine corresponding to a target pixel point, and the first reference values ​​are modulation transfer function values; According to the first reference value and the reference average value, the plurality of projection light engines are divided into a first product group and a second product group by comparing the first reference value and the reference average value; Determine a first actual average value according to the first reference value, wherein the first actual average value is determined according to an odd or even number of the plurality of first reference values, or the first actual average value is determined according to a median in a normal distribution curve graph of the plurality of first reference values; Classifying the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group, wherein the target product group is a first product group or a second product group; The target product group is classified according to the first actual average value and the reference average value to obtain a first product group and a second product group, including: The reference average value is greater than the first actual average value, and the second product group is classified to obtain a first product group and a second product group; or The reference average value is smaller than the first actual average value, and the first product group is classified to obtain a first product group and a second product group.

2. The method for confirming the resolution grading of a projection optical machine according to claim 1, characterized in that: The method further comprises: Determine a second reference value based on the first reference value, wherein the second reference value is used to evaluate the minimum resolution of the projection optical engine at the target pixel point; determining a second actual average value according to the first reference value corresponding to the second product group; The second product group is divided into a first sub-product group and a second sub-product group according to the second reference value, the second actual average value, and the first reference value corresponding to the projection light engine in the second product group.

3. The method for confirming the resolution grading of a projection optical machine according to claim 2, wherein: The first actual average value is greater than the second reference value, and the second actual average value is greater than the second reference value and smaller than the first actual average value.

4. The method for confirming the resolution grading of a projection optical machine according to claim 1, wherein: The method further comprises: Obtaining the user's ideal product standards, wherein the ideal product standards include a product group corresponding to a projection light machine at a set target pixel point; Obtaining a product group corresponding to each projector at a plurality of target pixel points, wherein the plurality of target pixel points include the set target pixel point; Determine the final product group of each projection light machine based on the ideal product standard and the product group corresponding to each projection light machine at multiple target pixel points; According to the final product group corresponding to each projection light machine, the user's ideal product is obtained.

5. The method for confirming the resolution grading of a projection optical machine according to claim 4, characterized in that: The multiple target pixel points include: target pixel points in the edge area and target pixel points in the center area of ​​the image picture projected by the projection light machine.

6. The method for confirming the resolution grading of a projection optical machine according to claim 4, wherein: The product group corresponding to each projection light machine at a non-set target pixel point is different from the final product group corresponding to each projection light machine.

7. A device for confirming the resolution grading of a projection optical machine, characterized in that: The confirmation device comprises: an acquisition module, configured to acquire first reference values ​​corresponding to a plurality of projection optical machines, wherein the first reference values ​​are used to evaluate the resolution of the projection optical machine corresponding to a target pixel point, and the first reference values ​​are modulation transfer function values; a first classification module, classifying the plurality of projection light engines into a first product group and a second product group by comparing the first reference value and the reference average value; a determining module, configured to determine a first actual average value based on the first reference value, wherein the first actual average value is determined based on an odd or even number of the plurality of first reference values, or based on a median in a normal distribution curve graph of the plurality of first reference values ​​as the first actual average value; a second classification module, classifying the target product group according to the first actual average value and the reference average value to obtain a first product group and a second product group, wherein the target product group is the first product group or the second product group; The target product group is classified according to the first actual average value and the reference average value to obtain a first product group and a second product group, including: The reference average value is greater than the first actual average value, and the second product group is classified to obtain a first product group and a second product group; or The reference average value is smaller than the first actual average value, and the first product group is classified to obtain a first product group and a second product group.

8. An electronic device, characterized in that: The electronic device comprises: Memory for storing executable computer instructions; A processor is configured to execute the method for confirming the resolution grading of a projection optical machine according to any one of claims 1 to 6 under the control of the executable computer instructions.

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