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40 results about "Light Adaptations" patented technology

Method for confirming actinic light intensity in chlorophyll fluorescence induction curve measurement

ActiveCN102435590AGuaranteed reasonable designTypical chlorophyll fluorescence induction curvePhotometry using reference valueFluorescence/phosphorescenceLower limitArbitrary Fluorescence Unit
The invention provides a method for confirming actinic light intensity in chlorophyll fluorescence induction curve measurement, which comprises the following steps of: obtaining plant leaf blades, shading environment light, setting multiple light intensity gradients, irradiating for a preset time with each light intensity gradient and measuring practical photosynthetic efficiency and relative electron transmission rate; drawing a response curve of the relative electron transmission rate, which is changed along the light intensity and fitting the response curve to obtain semi-saturated light intensity; taking the semi-saturated light intensity as the actinic light intensity for measuring the chlorophyll fluorescence induction curve; calculating a difference value between a maximal fluorescence value after light adaptation and a practical fluorescence value and a difference value between a maximal fluorescence value after dark adaptation and a basic fluorescence value after dark adaptation, and calculating the ratio of the two difference values; judging if the ratio is in a preset range, if so, confirming the current light intensity as the actinic light intensity, and if the ratio is less / more than the lower limit / the upper limit of the preset range, reducing / increasing the light intensity, re-measuring the chlorophyll fluorescence induction curve and calculating the ratio. The method can measure typical chlorophyll fluorescence induction curve.
Owner:上海乾菲诺农业科技有限公司

Method of boosting a local dimming signal, boosting drive circuit for performing the method, and display apparatus having the boosting drive circuit

There is provided a method of boosting a local dimming signal. In the method, it is determined whether or not local dimming signals, which are applied for individually driving light source blocks per frame, satisfy boosting conditions. Then, a predetermined local dimming signal corresponding to at least one of the light source blocks is boosted to a reference luminance value when the local dimming signals continuously satisfy the boosting conditions, and the boosting luminance of the predetermined local dimming signal at the reference luminance value is gradually decreased after a light adaptation time of an observer's eye. When the luminance of light source blocks that are boosted is gradually decreased before the light adaptation time or luminance of light source blocks that will be boosted is gradually increased to the light adaptation time, power consumption required to boost the light source blocks may be decreased.
Owner:SAMSUNG DISPLAY CO LTD

Face recognition method and device

ActiveCN108197586AImprove anti-aggression abilityEnhanced anti-aggression abilitySpoof detectionPattern recognitionLight Adaptations
The invention relates to a face recognition method and device. The method comprises the following steps: acquiring a first image and a second image which comprise the face of an object to be tested, wherein imaging methods of the first image and the second image are different; extracting first feature information from the first image; extracting second feature information from the second image; carrying out data fusion on the first feature information and the second feature information; carrying out optical flow processing on the feature information after data fusion; and judging whether the object to be tested is a living body or not according to the feature information processed by optical flow. Features of images acquired by the different imaging methods are subjected to data fusion, and then are processed by the optical flow, whether the object to be tested is a living body or not can be determined, therefore, replaying cheating caused by using photos or videos is prevented, and the invasion resistance of face recognition is improved. In addition, features are weighted by various feature parts of the face, and the recognition speed, invasion resistance and light adaptation of infrared human face recognition can be improved further.
Owner:BEIJING SENSING TECH CO LTD

Ambient light adaptation for dynamic foil displays

The present invention relates to the driving of optical displays, such as Dynamic Foil Displays, and provides dynamic adaptation of the number of subfields into which frame times of such displays are divided. The number (1202) of subfields can thus be selected depending on for example the ambient light conditions (1201) and image quality requirement. In particular, a smaller number of subfields facilitates brighter images, whereas a larger number of subfields facilitates an increased number of gray scales and / or motion artifact reduction.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Method of achieving fast driving of area array charge coupled device (CCD) by means of inductive charge accumulation

The invention discloses a method of achieving fast driving of an area array charge coupled device (CCD) by means of inductive charge accumulation. The method comprises the steps that model parameter setting is carried out according to imaging requirements; an area array CCD driving schedule is generated; the area array CCD enters into an integration phase and inductive charges are generated; the integration phase ends and the inductive charges are transferred to a storage area; the area array CCD enters into the next integration phase; the inductive charges are transferred to a horizontal shifting register; the inductive charge accumulation is carried out by repeating the previous operation according to a given parameter; the horizontal shifting register outputs a line of inductive charges; the previous operation is repeated according to the given parameter until inductive charges of one frame of images are all output; and output of the next frame of images is carried out by repeating the fourth step to the ninth step. According to the method of achieving the fast driving of the area array CCD by means of the inductive charge accumulation, fast output of inductive charges of the area array CCD is achieved by means of the model parameter setting under the circumstance that external imaging environment changes, and the light adaptation range of the area array CCD can be widened greatly.
Owner:EAST CHINA INST OF OPTOELECTRONICS INTEGRATEDDEVICE

Lighting device control system for light adaptation

The invention relates to a control system. In particular, the invention has an object to provide a lighting device control system for controlling a lighting device upon receiving a turn-on signal to turn on the lighting device, to emit light capable of generating an illuminance equal to or lower than an ambient illuminance around a place where the lighting device is installed.
Owner:IDSYS

System and method for setting display brightness of display of electronic device

The present disclosure provides a system and method of setting a display brightness of a display of an electronic device. One or more images of a user of the electronic device may be captured with a camera of the electronic device. A characteristic of an eye of the user may be detected in the one or more images. A light adaptation state of the user's eye may be determined based on the detected characteristic. The display brightness of the display of the electronic device may be set in view of the determined light adaptation state.
Owner:SONY CORP

Flexible starting method of LED (light emitting diode) lamp

The invention discloses a flexible starting method of an LED lamp. The method comprises the LED lamp and a dimmer of the LED lamp. When the LED lamp is started, the dimmer controls the brightness of the LED lamp to change according to a time relationship function. According to the flexible starting method of the LED lamp, the starting time of the LED lamp is prolonged and the light intensity of the LED lamp is increased in a staged mode, so that people in the lighting environment can be provided with enough time for adjusting the light intensity changing, light adaptation can be avoided and people's eyesight can be protected.
Owner:大连工大(泗阳)光源与照明工程技术研究院有限公司

Human eye light adaptation simulating intelligent lamplight device and air testing equipment

The invention discloses a human eye light adaptation simulating intelligent lamplight device and air testing equipment. The intelligent lamplight device comprises a CPU (Central Processing Unit) module, an ambient light detecting module, a light emitter starting module and a light emitter module, so that the intelligent lamplight device can acquire ambient lights in real time and can adjust a duty ratio of a PWM (Pulse-Width Modulation) signal of the CPU module for lighting up a light emitter in real time based on the lights when the light emitter is turned on, and human eyes can be prevented against highlight stimulation during a period of time and can adapt to the environment in a certain time. The air testing equipment provided with the intelligent lamplight device comprises an air testing module which is electrically connected with the CPU module, so that the air testing equipment which is provided with a light part based on a light and dark adaptation process of human eye perception characteristics can dynamically test and display multiple indoor air quality information. The human eye light adaptation simulating intelligent lamplight device is applicable for devices which are used at home, offices and other indoor places, can perform lamplight brightness adjustment based on the human eye light adaptation and have an air information function.
Owner:SHANDONG LEKANG ELECTRICAL TECH

Plant chlorophyll fluorescence parameter correction method and device

The invention provides a plant chlorophyll fluorescence parameter correction method and device. The method comprises A1, carrying out dark adaptation treatment on a plant; A2, acquiring a minimum chlorophyll fluorescence image of the plant, and then acquiring a maximum chlorophyll fluorescence image of the plant; A3, enabling the plant to be in an actinic light irradiation environment, and obtaining an initial reflection image of the plant at the moment; A4, irradiating the plant with actinic light for t hours, and obtaining a plant reflection image and a dynamic instantaneous fluorescence image after the plant reaches a light adaptation state; A5, after the plants are illuminated by ultraviolet light for t hours, obtaining a steady-state blue spectral fluorescence image, a green spectralfluorescence image, a red spectral fluorescence image and a far infrared spectral fluorescence image of the plant; A6, calculating a chlorophyll fluorescence yield deviation coefficient; A7, carryingout correction calculation to obtain an actual chlorophyll fluorescence yield parameter under an illumination condition; A8, calculating to obtain an actual chlorophyll fluorescence parameter image for analysis. The photosynthesis efficiency can be detected more accurately by the method and the device.
Owner:FUJIAN AGRI & FORESTRY UNIV

Electronic police checkpoint system capable of enhancing human eye light adaptive capacity at night

The invention relates to an electronic police checkpoint system capable of enhancing human eye light adaptive capacity at night. The system can effectively solve the problem that an existing checkpoint system flashing light severely affects the vision of drivers or pedestrians. According to the technical scheme, the system comprises a video detecting and photo capturing device, a light adaptation additional light supplementing device with the lighting brightness increasing gradually in the vehicle coming direction is arranged on the front side of the video detecting and photo capturing device, and a dark adaptation additional light supplementing device with the lighting brightness decreasing gradually in the vehicle going direction is arranged on the rear side of the video detecting and photo capturing device. The electronic police checkpoint system is novel and unique in structure, simple, reasonable, safe, reliable, capable of effectively solving the problem that the checkpoint system flashing light affects the vision of the drivers or the pedestrians, low in cost, convenient to install and good in use effect and has good social and economic benefits.
Owner:THE PLA INFORMATION ENG UNIV

Method of boosting a local dimming signal, boosting drive circuit for performing the method, and display apparatus having the boosting drive circuit

There is provided a method of boosting a local dimming signal. In the method, it is determined whether or not local dimming signals, which are applied for individually driving light source blocks per frame, satisfy boosting conditions. Then, a predetermined local dimming signal corresponding to at least one of the light source blocks is boosted to a reference luminance value when the local dimming signals continuously satisfy the boosting conditions, and the boosting luminance of the predetermined local dimming signal at the reference luminance value is gradually decreased after a light adaptation time of an observer's eye. When the luminance of light source blocks that are boosted is gradually decreased before the light adaptation time or luminance of light source blocks that will be boosted is gradually increased to the light adaptation time, power consumption required to boost the light source blocks may be decreased.
Owner:SAMSUNG DISPLAY CO LTD

Retinopathy light adaptation treatment rehabilitation instrument

The invention relates to a retinopathy light adaptation treatment rehabilitation instrument. The instrument comprises a carrying base, a carrying upright column, a working platform, a treatment mechanism and a control circuit, the carrying base is of a sealing cavity structure, the control circuit is embedded in the carrying base and connected with the carrying upright column, the working platformand the treatment mechanism, the carrying column is connected with the upper end face of the carrying base and the lower end face of the working platform through a rotary platform mechanism, the carrying base, the carrying upright column and the working platform are coaxially distributed, the upper end face of the working platform is connected with the treatment mechanism, and the treatment mechanism comprises a horizontal guiding rail, a sliding block, a horizontal driving mechanism, a lens tube, an auxiliary light source, a display, an adjusting lens group and an observation optical lens. The instrument has the advantages of being simple in structure, flexible and convenient to use, good in universality and high in operation automation degree, the instrument has a better modular structure, on one hand, using demands of different patients can be effectively met, on the other hand, a treatment scheme can be flexibly adjusted according to the actual demands of a patient, and thereforedemands of different disease treatments and rehabilitation operations are met.
Owner:CHENGDU ZHIA TECH CO LTD

Human face structuring method and human face structuring system

ActiveCN106780318AImprove accuracyFacilitates high-resolution reconstructionImage enhancementImage analysisImage resolutionLight Adaptations
The invention proposes a human face structuring method and a human face structuring system wherein the human face structuring method comprises: obtaining a low-resolution human face image; according to the light distribution and detail distribution of the low-resolution human face image, adjusting the light distribution and detail distribution of each training set image in the training set; based on the each adjusted training set image, creating high-resolution image blocks through a neighborhood embedding method; and combining the high-resolution image blocks to obtain a high-resolution human face image. According to the technical schemes of the invention, a light-adaptation human face structuring method can be realized, which enables a low-resolution human face image to have the consistent light as each training set image so that their high frequency information is consistent and that high resolution reconstruction can be easily carried out, therefore, making the reconstruction of a high-resolution human face image more accurate.
Owner:PEKING UNIV

Intelligent home system based on energy-saving integration

The invention discloses an intelligent home system based on energy-saving integration. The system comprises a bedside lamp which includes a main control module, a motion detection module, an infraredinduction module, a temperature detection module, and a WIFI module. The motion module is used for monitoring existence of a human body in a detected range, and the infrared induction module is used for inducing the existence of the human body according to a height position of the human body so as to conveniently adopt different schemes when a user changes from a static state to a moving state. The intelligent home system based on energy-saving integration has an effect of reminding a user to have a rest at a required moment through light dominant hue cold and hot values, has a light emittingstate flickering early warning function for unknown rise of a mobile phone charging temperature at night and can give an alarm to the interior of a community through a wireless module. Light can be turned on in advance according to actions when a user turns over at night and gets up at night, and sleep rules of the user are scientifically recorded, so that a personal light adaptation mode is formed.
Owner:珠海市贝多图网络科技有限公司

High-variable precision photographing method based on mobile carrier

The invention discloses a high-variable precision photographing method based on a mobile carrier. The method comprises the steps of realizing an initially positioning of a camera in a preset way; utilizing a porous model as a camera optical model, adjusting a to-be-photographed device to the central position of an image, and carrying out the precision photographing by virtue of the variable and zooming adjusting way, so that the precision image collection can be realized by virtue of the technology such as the automatic light adaptation technology.
Owner:ZHONGSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID +1

Application of cotton GhPHOT1-1 gene in efficient utilization of light energy

The invention belongs to the technical field of cotton genetic engineering application, and particularly relates to a patent application for new application of a cotton GhPHOT1-1 gene in efficient utilization of plant light energy. The GhPHOT1-1 gene is associated with plant growth and development; after overexpression of the GhPHOT1-1 gene, the maximum light energy conversion efficiency Fv / Fm ofPSII reaction center of transgenic plant leaf blades is significantly increased, and the maximum photochemical efficiency Fv' / Fm' of PSII under light adaptation conditions is improved, that is: the overexpression of the GhPHOT1-1 can improve the efficiency of light energy utilization of transgenic plants. The cotton GhPHOT1-1 gene has a direct correlation with the photosynthetic efficiency enhancement based on a conserved blue receptor response function. Based on the discovery, the cotton's ability to capture light is better enhanced, so that the cotton can maximize the use of light energy, then a molecular breeding method is used for increasing the yield, showing a good application prospect.
Owner:HENAN UNIVERSITY

Adaptive panoramic light adaptation method

ActiveCN113014839AReduce extended display latencyReaching Stretch ConsistencyTelevision system detailsImage analysisImage averagingImaging algorithm
The invention discloses a self-adaptive panoramic light adaptation method. The method comprises the following steps: automatically detecting the brightness of the surrounding environment through an ambient light sensor, automatically adapting to the brightness of the panoramic light, and enabling the brightness color of a picture to extend to the brightness of the panoramic light to be softly matched with the brightness of the surrounding environment; according to a configuration file, performing region partitioning and sub-small block partitioning required by panoramic light configuration, and forming single-side, double-side, three-side and four-side region panoramic light through self-adaptive configuration; by analyzing the collected image data of all the sub-small blocks of the screen partition, establishing a panoramic light image output data model by adopting a deep fusion image algorithm, an application image averaging algorithm and an image compensation algorithm, and achieving the consistency of a screen display image and image extension. The data acquisition sequence of the image sub-cell blocks is in one-to-one correspondence with the output sequence of the panoramic light display output control module, panoramic light is controlled to be output and displayed by using a first-in first-out method, and the image extension display time delay is reduced. According to the invention, the image color display output time delay is reduced.
Owner:TPV DISPLAY TECH (XIAMEN) CO LTD

Self-regulating type photobioreactor

The invention discloses a self-regulating type photobioreactor. The self-regulating type photobioreactor structurally comprises a base, a light adaptation device and a reaction chamber, wherein the upper side of the base and the lower side of the light adaptation device are in built-in connection, and the middle part of the upper end of the light adaptation device is bonded to the lower side of the reaction chamber. A spring is compressed by a magnetic-attracted iron slab, moves upwards under the fixing of a guide post and will drive a light shield for regulation while moving, a folded sheet is spread due to drawing of an offset plate so as to shield part of light, an internal temperature of the reaction chamber is prevented from increasing in case of intense light, the growth efficiency of organisms is increased, the magnetic mutual attraction is improved after an electromagnet is regulated, a link drives an ejector pin to move upwards, the ejector pin extrudes a top plate at the bottom of a shield after moving upwards, the top plate drives a baffle to offset after the top plate is extruded so as to shield a photosensitive shell, the irradiation of ambient light to the photosensitive shell is reduced, and photosensitive control is prevented from reaction on the ambient light.
Owner:海南欧瑞康健康管理有限公司

Tunnel lamp mounting system and mounting method

The invention discloses a tunnel lamp mounting system and mounting method, and belongs to the field of tunnel lamps. The mounting system comprises an exit tunnel lamp unit, a tunnel lamp unit and an entrance tunnel lamp unit, tunnel lamps on the exit tunnel lamp unit are obliquely mounted from a tunnel exit to the inside of a tunnel, tunnel lamps on the tunnel lamp unit are vertically mounted, tunnel lamps on the entrance tunnel lamp unit is obliquely mounted towards a tunnel entrance, and mounting rods are arranged among the tunnel lamps and the top of the tunnel. The tunnel lamps on the exittunnel lamp unit and the tunnel lamps on the entrance tunnel lamp unit are obliquely mounted, so that light adaptation of a driver is more facilitated when the driver drives a car to enter the tunneland leave from the tunnel, and traffic accidents are decreased in entering and exiting.
Owner:广西南宁都市阳光照明工程有限公司

An intelligent lighting system and method for expressway tunnels

The invention discloses an intelligent lighting system and method for an expressway tunnel. The invention can intelligently control the illumination brightness of the lamp group in the expressway tunnel in real time according to the actual illumination and its change of the environment outside the tunnel exit entrance, so that the driver can When passing through the tunnel, the eyes can gradually adapt to the obvious light and dark changes inside and outside the tunnel, shorten the time for dark adaptation and light adaptation, improve the driver's sight distance, reduce the stimulation of sudden changes in light brightness to the driver, and ensure the traffic safety of expressway tunnels .
Owner:山西省智慧交通研究院有限公司

Method and system for testing tunnel exit low-angle sunlight instantaneous blinding effect

ActiveCN111076896AOptimizing Lighting ArrangementsPrevent rear-end collisionsTesting optical propertiesDriver/operatorTraffic crash
The invention discloses a method and a system for testing the tunnel exit low-angle sunlight instantaneous blinding effect. The method comprises the following steps: a, selecting a simulation test tunnel and a simulation test road surface, building a simulation low-angle sunlight system, and setting an illuminometer at a position equal in height to the eyes of a driver of a tested vehicle; b, identifying a small target reference object arranged on the simulation test road surface on the selected simulation test tunnel and simulation test road surface by a driver, recording related data, and adjusting an illumination parameter of the simulation low-angle daylight system; and c, detecting the identification condition of the driver under the comparison of different illumination parameters. Multiple groups of tests are carried out by changing a single illumination parameter, the influence degree of the blinding effect on the visual ability of a driver is quantified, theoretical data reference is provided for setting of a light adaptation zone of a tunnel exit, and the traffic accident rate of a tunnel exit section is reduced.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST

A Method of Realizing Fast Driving of Area Array CCD by Inductive Charge Accumulation

The invention discloses a method of achieving fast driving of an area array charge coupled device (CCD) by means of inductive charge accumulation. The method comprises the steps that model parameter setting is carried out according to imaging requirements; an area array CCD driving schedule is generated; the area array CCD enters into an integration phase and inductive charges are generated; the integration phase ends and the inductive charges are transferred to a storage area; the area array CCD enters into the next integration phase; the inductive charges are transferred to a horizontal shifting register; the inductive charge accumulation is carried out by repeating the previous operation according to a given parameter; the horizontal shifting register outputs a line of inductive charges; the previous operation is repeated according to the given parameter until inductive charges of one frame of images are all output; and output of the next frame of images is carried out by repeating the fourth step to the ninth step. According to the method of achieving the fast driving of the area array CCD by means of the inductive charge accumulation, fast output of inductive charges of the area array CCD is achieved by means of the model parameter setting under the circumstance that external imaging environment changes, and the light adaptation range of the area array CCD can be widened greatly.
Owner:EAST CHINA INST OF OPTOELECTRONICS INTEGRATEDDEVICE

Portable explanation device

A portable explanation device disclosed by the present invention comprises a bookend, a base and a top plate, wherein the inner side of the base is provided with a roller, one side of the roller is provided with a guide groove, the top end of the base is provided with a support, the top end of the support is provided with a fixing rod, one side of the fixing rod is provided with a connecting rod, the top plate is installed above the fixing rod, square pipes are installed at the four corners of the top end of the top plate, a platform is installed at the top end of the telescopic barrel, a bookshelf is installed at the top end of the platform, a panel is installed at the top end of the bookshelf, rotating cylinders are installed at one end of the panel, limiting holes are formed in the inner sides of the rotating cylinders, and bolts are arranged on the inner sides of the limiting holes. By installing the bookend, the base and the top plate, forming the limiting holes in the inner sides of the rotating cylinders and arranging the plug pins on the inner sides of the limiting holes, the angle of manuscript paper can be adjusted, light adaptation is facilitated, and the efficiency is greatly improved.
Owner:张晓茹

Method for confirming actinic light intensity in chlorophyll fluorescence induction curve measurement

ActiveCN102435590BGuaranteed reasonable designTypical chlorophyll fluorescence induction curvePhotometry using reference valueFluorescence/phosphorescenceArbitrary Fluorescence UnitLight Adaptations
The invention provides a method for confirming actinic light intensity in chlorophyll fluorescence induction curve measurement, which comprises the following steps of: obtaining plant leaf blades, shading environment light, setting multiple light intensity gradients, irradiating for a preset time with each light intensity gradient and measuring practical photosynthetic efficiency and relative electron transmission rate; drawing a response curve of the relative electron transmission rate, which is changed along the light intensity and fitting the response curve to obtain semi-saturated light intensity; taking the semi-saturated light intensity as the actinic light intensity for measuring the chlorophyll fluorescence induction curve; calculating a difference value between a maximal fluorescence value after light adaptation and a practical fluorescence value and a difference value between a maximal fluorescence value after dark adaptation and a basic fluorescence value after dark adaptation, and calculating the ratio of the two difference values; judging if the ratio is in a preset range, if so, confirming the current light intensity as the actinic light intensity, and if the ratio is less / more than the lower limit / the upper limit of the preset range, reducing / increasing the light intensity, re-measuring the chlorophyll fluorescence induction curve and calculating the ratio. The method can measure typical chlorophyll fluorescence induction curve.
Owner:上海乾菲诺农业科技有限公司

Method and device for light adaptation of driver of vehicle when driving out of tunnel

The present disclosure relates to a method and an apparatus (2) for light adaptation of the eyes of a driver of a vehicle (1) when driving out of a tunnel. The method and apparatus (2) determines a tunnel exit location (TEP) and, in response to the determination of the tunnel exit location (TEP), changes a light source luminous flux of at least one light source (3) in the vehicle (1) as the vehicle (1) approaches the tunnel exit location (TEP).
Owner:NINGBO GEELY AUTOMOBILE RES & DEV CO LTD
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