13 results about "Visual sensitivity" patented technology

An electronic device may have a display for displaying image content. Head-mounted support structures in the device may be used to support the display. The electronic device may have an eye monitoring system that detects eye saccades and eye blinks. Control circuitry in the electronic device may coordinate operation of the display with periods of suppressed visual sensitivity that are associated with the saccades and blinks. By making adjustments to display circuitry and image content during periods of suppressed visual sensitivity, potentially visually obtrusive changes to displayed images can be hidden from a user of the electronic device. Adjustments to display operation may help reduce burn-in effects, may help reduce power consumption, and may otherwise improve device performance.

The present invention provides a light-absorbing composition, a light-absorbing film, and an optical filter that are advantageous in terms of reproducing human visual sensitivity, particularly in terms of light absorption characteristics in the short-wavelength region, as well as a method for manufacturing such a light-absorbing film. [Solution] The light-absorbing composition according to the present invention contains an ultraviolet absorber having a hydroxyl group and a carbonyl group in its molecule, and a metal component. At least a portion of the metal component is bonded to an organic oxy group.

The application discloses a Mini LED area dynamic light adjusting method, comprising the following steps: step 1, obtaining a gray image of a current frame image and determining a backlight partition of a Mini LED; carrying out a viewpoint tracking to obtain a gaze point of each backlight partition on a Mini LED backlight panel; step 2, based on a human eye foveal vision characteristic, each backlight partition is divided into a gaze area and a peripheral area respectively; the initial maximum backlight value and the initial average backlight value of the gaze area and the peripheral area are calculated; step 3, based on a human eye foveal visual sensitivity characteristic curve, a correction coefficient is determined, and the initial maximum backlight value of the gaze area and the initial average backlight value of the peripheral area are corrected by using the correction coefficient to obtain a final backlight value; step 4, based on the final backlight value of the gaze area and the peripheral area, the backlight value of the corresponding backlight partition is adjusted. The application can reduce the visual error of display and improve the human eye visual effect.

The invention provides a video frame coding method and device, equipment and a medium, and relates to the field of artificial intelligence cloud computing, in particular to image processing and video coding scenes. The specific implementation scheme is as follows: performing sensitive area identification on a video frame to obtain a target area; according to a basic coding strategy, the overall basic code rate of the video frame, and the area ratio, visual sensitivity and texture complexity of the target area, code rate allocation is carried out on the target area, and a code rate allocation result of the target area is obtained; based on the code rate distribution result, performing quantization parameter adjustment on a target area and a non-target area in the video frame to obtain differential coding parameters; and adopting a video encoder to encode the video frame according to the differential encoding parameters. According to the technical scheme, the video picture quality can be improved.

This invention discloses a method and system for optimizing stereoscopic vision on naked-eye 3D large screens, specifically relating to the field of naked-eye 3D vision optimization technology. The method includes: real-time perception of ambient light and viewer position through multi-sensor fusion to establish an ambient light field model; prediction of glare crosstalk noise based on physical simulation, and adaptive suppression and compensation combining human visual sensitivity and image content features; dynamic generation of a virtual camera based on the viewer's real-time binocular positions, and real-time re-rendering using a lightweight neural radiation field renderer to achieve motion parallax; finally, intelligent fusion and encoding of the glare compensation layer and perspective correction layer, and outputting the result to the screen. The system includes four main modules: environmental perception, glare compensation, perspective rendering, and fusion encoding. This invention effectively suppresses ambient light interference, improves the quality and immersion of stereoscopic images from different viewing angles, and is suitable for naked-eye 3D large-screen displays in outdoor and complex lighting environments.

The invention provides a rail transit landscape influence quantitative analysis method and system based on spatial data analysis, and relates to the technical field of environmental protection engineering.The method comprises the steps that a visual visibility index is calculated based on spatial relation data; obtaining design attribute data of the rail transit line, and calculating an environmental compatibility index based on the design attribute data; obtaining a visual elevation angle between the rail transit line and the landscape sensitive target and an occurrence probability of a building in a vision field of the landscape sensitive target so as to calculate a visual sensitivity index; based on the visual visibility index, the environmental compatibility index and the visual sensitivity index which are endowed with the weights, calculating to obtain a comprehensive evaluation index; and matching the comprehensive evaluation index with the influence grade interval to obtain a landscape influence processing scheme of the rail transit line. According to the method, the rail transit landscape influence intensity can be quantitatively evaluated, the early-stage investigation investment of a project and the risk of later-stage engineering scheme adjustment are reduced, and the economic applicability is high.

The invention relates to a vehicle control method and a vehicle. The driving state of a vehicle and the visual sensitivity of a user can be obtained; visual prompt information is output, the visual attribute of the visual prompt information is determined according to the driving state and / or the visual sensitivity, and the visual prompt information is used for relieving carsickness. The visual attribute of the output visual prompt information is determined by considering the visual sensitivity of the user and combining the driving state of the vehicle, so that the output visual prompt information can be associated with the driving state of the vehicle, the personalized requirement of the user for the visual attribute of the visual prompt information can be met, and the anti-carsickness effect is improved.

This utility model belongs to the technical field of pig disease prevention equipment, and particularly relates to a long-pole blindfolded pig-catching device for disease prevention. Addressing the problem that existing devices do not obstruct the pig's vision, leading to heightened visual sensitivity and heightened alertness to environmental changes, resulting in panic, severe stress, and continued struggle even when restrained, easily causing injury and increasing health risks, the following solution is proposed: a long-pole blindfolded pig-catching device for disease prevention, including a connecting block with a steel band fixedly mounted on its surface. The advantages of this utility model are: the device is easy to operate; the control lever and U-shaped clamp can quickly tighten the steel band; the connecting rod, adjusting rod, and extension rod are detachable; a single person can handle different scenarios, reducing labor costs and complexity; a dark cloth bag simultaneously blindfolds the pig, a sponge ring provides cushioning, and a spring provides elastic locking, reducing stress and injury to the pig; the steel ring is adjustable to fit pigs of different sizes; one device meets diverse needs.

An eye exam can be performed using an electronic device in a virtual environment to determine visual susceptibility to digital screen use. The electronic device can execute a visual assessment application and display a user interface to create a 3D virtual environment. Visual content can be continuously displayed for an extended duration of time with predefined display parameters associated with a screen usage in the 3D virtual environment. The electronic device can obtain a stream of sensor data measured by the one or more sensors and determine a plurality of sequential user responses to the visual content based on the stream of sensor data. The electronic device can apply at least a screen usage prediction model to generate a screen usage guidance profile for the user based on the plurality of sequential user responses.

This invention proposes a differentiated collaborative animal repelling system and method for substations. The system includes a front-end detection module that monitors the substation's monitoring area, collecting the target's location, movement trajectory, morphological features, sound characteristics, thermal imaging information, and image information. An AI fusion control module acquires the target's location, movement trajectory, and thermal imaging information, sequentially determining whether the target has invaded, whether the invading target is an animal, and the initial target classification result. After determining that an animal has invaded the substation area, a preliminary repelling strategy is determined based on the initial classification result. The front-end detection module then acquires the animal target's morphological features, sound characteristics, and image information again, and based on these, determines the animal target's species type. Furthermore, based on the animal target's species type and the species repelling strategy database containing the animal target's visual sensitivity, acoustic sensitivity, and auditory fear sources, a final repelling strategy is determined for the current animal target. The repelling execution module then repelles the animal target according to the preliminary and final repelling strategies determined by the AI ​​fusion control module.

The invention relates to the technical field of display adjustment, in particular to a liquid crystal display energy-saving control method and system and a medium. The method comprises the following steps: acquiring pixel gray scale data of a current frame, and respectively counting gray scale brightness change conditions and gray scale histograms in a pre-divided display area; simultaneously collecting ambient light intensity and current refresh frequency; judging the display content type of each display area based on the gray scale brightness change condition and the gray scale histogram, and determining a visual sensitivity coefficient corresponding to each display area; according to the display content type of each display area and the current refresh frequency, constructing an area content perception energy consumption evaluation quantity; and solving a target backlight brightness ratio and a target gray scale compression ratio of each display area according to the area content perception energy consumption evaluation quantity, and transmitting solving results to a controller of the liquid crystal display screen. Dynamic adjustment of backlight brightness and gray scale compression of the liquid crystal display screen is achieved, and the overall energy consumption is remarkably reduced on the premise that the visual display effect is guaranteed.

The application discloses a tone mapping algorithm based on multi-scale WLS filtering fusion, and belongs to the field of image enhancement. High dynamic range images (HDR) cannot be displayed on commonly used low dynamic range (LDR) display devices due to higher dynamic range and bit depth, and thus need to be subjected to tone mapping. The tone mapping algorithm based on multi-scale WLS filtering fusion comprises the following steps: S1, inputting a high dynamic range image, calculating the luminance graph of the input image, and converting to a logarithmic domain; S2, using WLS filters of different scales to filter the luminance graph to obtain a base layer, using the base layer to realize multi-scale detail layer extraction, then weighting and fusing the details of different scales with the base layer to realize detail enhancement; S3, according to a human visual sensitivity model, adjusting the dynamic range of the fused image; and S4, color reconstruction, to obtain a final LDR image.

The invention discloses a composite watermark low-coupling embedding and efficient identification method based on wavelet transform. The method comprises the following steps: carrying out wavelet transform on a carrier image and dividing sub-band priorities based on visual sensitivity; carrying out differential preprocessing on the copyright watermark, the authentication watermark and the content description watermark; embedding the watermarks into the corresponding sub-bands according to the priorities and the security requirements, and performing noise suppression; generating a watermark-containing image through wavelet inverse transformation; and extracting a verification watermark by adopting a hierarchical cascade identification architecture, and dynamically adjusting a matching threshold value according to an attack type. According to the method, the robustness of the watermark when facing noise, compression and geometric attacks is improved, the watermark embedding capacity is increased, and the recognition accuracy and efficiency are remarkably improved.