52 results about "Visual Discomfort" patented technology

Visual discomfort from depth jumps in 3D video content is reduced or avoided by detecting the occurrence of a depth jump and by Input video changing the disparity of a group of received image frames including the frames at the depth jump in order to adjust the perceived depth in a smooth transition across the group of image frames from a first disparity value to a second disparity value. Depth jumps may be detected, for instance, when content is switched from one 3D shot to another 3D shot.

A vehicle-periphery image generating apparatus and a method of correcting distortion of vehicle-periphery image corrects distortion of the obstacle image appearing in the vehicle-periphery image after viewpoint conversion, so that visual discomfort experienced by the driver is reduced. Images around the vehicle are captured by a plurality of cameras, and an obstacle around the vehicle is detected by an ultrasonic sensor. When the obstacle is detected, a width of an image in the region positioned on the far side of the obstacle is compressed in the center direction of the images to generate the vehicle-periphery image. As a result, when a three-dimensional obstacle around the vehicle appears in an camera image, the camera image is viewpoint-converted so that enlargement or stretching of the obstacle image can be prevented.

The invention discloses a method for dynamically adjusting backlight brightness based on the image content. The method can dynamically adjust a backlight and adjust the image contrast effectively. The method includes the following steps: (1) calculating the gray level histogram of an image to be used for calculating the highest degree of distortion and the largest gain coefficient of the image; (2) limiting the maximum value of the gain coefficient to reduce the influences that the display effect is weakened and a user feels uncomfortable in vision, wherein the influences are caused by sudden change of the backlight; (3) according to the ambient brightness, determining the minimum value of the current brightness of a mobile phone to determine the current maximum distortion so that the situation that the user is unable to recognize the content on a screen because the environment is too bright will not happen; (4) introducing an image similarity algorithm of a historical frame and a current frame to reduce the number of times of calculation of the gain coefficient. The method dynamically adjusts the backlight according to the display content on the screen, reduces calculation amount to the greatest extent under the condition that the effect of the calculation amount on the performance of the mobile phone is taken into consideration, compensates for the caused image distortion, and ensures that the visual experience of the user will not be affected by the design of low power consumption.

The invention provides a production process of dry grain soft cast ceramic tiles and relates to the technical field of ceramic tile production. The process comprises the following steps: brushing ceramic bodies, spraying water (8-10g per tray), spraying ground coat (1.35 pecific gravity 100g per tray), spraying overglaze (1.45 pecific gravity 40g per tray), performing inkjet printing, spraying a protective layer (1.15 pecific gravity 30g per tray), spraying dry grains by a high-pressure spray gun (1.22 pecific gravity 105g per tray), drying and sintering in a kiln. According to the specific formula process and polishing process, the mean finish degree of the dry grain soft cast process product is 15 degrees only, the problem of visual discomfort is solved, waxing is not needed at the laterstage of polishing, and the cost is saved. The wear resistance of the dry grain glaze is better than that of polished glazed tiles, and the dry grain glaze has advantages in application. The surfacehand feeling of the soft cast product is fine and smooth, and the antifouling property is better than that of semi-polished products.

A method and apparatus for reducing the visual discomfort of the illumination generated by imaging scanners. The method includes (1) turning on a driving current for a illumination source during each of a series of exposure periods to provide illumination directed toward a target object; (2) capturing an image from the target object with photosensitive circuitry during at least one of the exposure periods; and (3) generating a pulse-width-modulation driving current that has a duty cycle changing with time between two consecutive exposure periods for making perceived gradual illumination changes between the two consecutive exposure periods. The duty cycle decreases from the value of 100% to a minimal value after each of the exposure periods and increases from the minimal value to the value of 100% before each of the exposure periods.

An image display (A) comprises a display unit (1) such as a liquid crystal panel, a light source (3) such as a backlight, a light source control section (5), a video signal processing section (7) for outputting a signal to control the display unit in accordance with an input signal (S1), and a control section (11) for controlling the whole including light source control and video image control. The control section (11) has a video-image analyzing block (15) for analyzing a video image on the basis of the input signal (S1), a target value setting block (17) for setting a target value of an amount of light generated by the light source upon receiving an analysis result (S2), and a controlled-amount determining block (21) for, upon receiving a target value (S3), determining a speed at which the light source is controlled, and for outputting a compensation parameter (S4) to the video signal processing section (7) while notifying the light source control section of a set luminance (S5). On receiving the set luminance value (S5), the light source control section (5) outputs a light amount control signal (S6) to the light source. Thereby, a technique which is capable of reducing power consumption in image display without causing any visual discomfort can be provided.

A computer-implemented method for stereoscopically displaying content includes determining a first position of an object within in a region of display space proximate to a stereoscopic display device and calculating a second position of a virtual object in the region. The method further includes determining an occluded portion of the virtual object that is occluded the object when the virtual object is disposed at the second position and causing the display device to stereoscopically render for display one or more portions of the virtual object that do not include the occluded portion. One advantage of the disclosed method is that a viewer can perform direct touch operations with stereoscopically displayed (3D) content with reduced visual discomfort.

The invention discloses a monocular multi-view three-dimensional display method. A multi-view optical display structure with limited number of presented views is utilized, a projection lens is introduced between a display view of the multi-view optical display structure and a corresponding view area to amplify the display view, and the interval between adjacent views is reduced, so that two or more pieces of view emergent light information can enter one eye of an observer through two or more adjacent view areas to realize monocular multi-view presentation. The visual discomfort caused by focusing-convergence conflicts of the traditional three-dimensional display technology is avoided, and the visual area distribution area is expanded by arranging two or more multi-view optical display structures / projection lens pairs to cover the two eyes of the observer or provide a larger observation area for the two eyes of the observer.

To remove visual discomfort during a zooming period, thereby enabling an observer not to feel fatigued.An image processing device includes an imaging unit that acquires stereoscopic images formed by a plurality of viewpoint images, an operation unit that acquires a zoom value, a parallax amount calculation unit that calculates a parallax amount of each pixel between the plurality of viewpoint images, and a parallax amount correction unit that corrects the parallax amount of each pixel of the stereoscopic images according to the parallax amount of each pixel calculated by the parallax amount calculation unit and the zoom value.

The invention discloses a time display method. The time display method comprises the steps of obtaining the light intensity around a terminal if a triggering event of time display is detected; according to the light intensity around the terminal, determining display parameters of displaying time information by the terminal; and according to the display parameters, displaying the time information on a display screen of the terminal. The invention furthermore discloses a time display apparatus, a computer apparatus and a computer readable storage medium. The time can be clearly displayed, so that a user can view the time conveniently, visual discomfort is avoided, and the user experience is improved.

The invention discloses an intelligent excrement analysis method based on computer vision and a neural network, and belongs to the technical field of digital image processing and machine learning. Themethod comprises the following steps: detecting the color of excrement; acquiring a 3D image of the excrement, and obtaining the excrement character through automatic analysis; acquiring a microscopic examination image according to the excrement color and the excrement character, and analyzing the microscopic examination image to obtain an excrement visible component; and integrating and classifying the analysis results of the excrement color, the excrement character and the excrement visible component. According to the method, intelligent and automatic analysis of the excrement can be realized, the color and character of the excrement can be accurately recognized, visible components are selected for detection in a targeted manner, results are classified, the method is an effective supplement to a traditional excrement recognition technology, the efficiency is higher than that of a traditional recognition method, and visual discomfort of detection personnel can be reduced.

To provide a technique capable of alleviating the sense of visual discomfort when light distribution areas are switched. A vehicle lamp configured to include a light source, wherein the light source comprises a plurality of light-emitting units respectively comprising a control terminal for controlling light emission and extinction, arranged along a first direction, and the plurality of light-emitting units increases in a width of a first direction in proportion to a distance away from a predetermined reference position toward both sides along the first direction, with the width of a light-emitting unit corresponding to the predetermined reference position being the smallest.

The invention provides a method and a device for image correction, which are applied to the field of image processing, and the method comprises the following steps: receiving two images which are images of a target object shot from different viewpoints; carrying out epipolar correction on the two images; performing correction based on image content on the two images after the epipolar correction;and splicing the two corrected images based on the image content. According to the method, the obtained images of different viewpoints can be corrected, so that pixel alignment is ensured, and a viewer does not have a visual discomfort feeling.

An endoscope system which can reduce visual discomfort even in a case where a normal image and a special image are alternately displayed, and a method of operating the endoscope system are provided. In a case where an observation target including a first structure is illuminated with first mode illumination light, a first mode display image obtained by imaging the observation target is acquired. In a case where the observation target is illuminated with second mode illumination light, a second mode display image obtained by imaging the observation target is acquired. A corrected image is obtained by correcting the first mode display image or the second mode display image such that a difference in a color and / or brightness of the first structure between the first mode display image and the second mode display image before the correction becomes small.

In a computer-based graphics imaging system, binocular tone mapping is employed with an optimization-based framework to generate a binocular single vision image with more visual richness than a single tone-mapped image, the binocular tone mapping being guided by a binocular viewing comfort predictor (BVCP) metric in order to assure stable formation of binocularly tone-mapped image pairs, so that visual information content of the image pair can be maximized without triggering visual discomfort.

The invention discloses an intelligent electronic police system for a bus-only lane. The system includes a front-end image collecting part, a network transmission part and a central management part. The front collecting part is composed of a high-definition camera, a stroboscopic light supplementing lamp and a front-end control host. The high-definition camera transmits collected image signals to the front-end control host. Image processing software is embedded in the control host and plays core functions such as illegal vehicle shooting, vehicle license board recognition, illegal image synthesis and the like. The working performance and the snapshot and recognition success rate of the software directly influence the quality of the whole system. The front end of the system adopts a low power consumption industrial control computer for image analysis, extraction, recognition, synthesis and transmission. The total power of the light supplementing device is reduced and aims of low power consumption, high efficiency and an automatic starting function are realized. The low color temperature light supplementing device is specially adopted in full consideration of visual perception of a driver of a bus in normal driving aiming at the point location of a bus head to be shot, so that visual discomfort can be reduced and the system is suitable for promotion and application.

The invention relates to the field of electronics, and discloses a brightness adjusting method and apparatus which are capable of really effective and comprehensive tracking of the change of environment brightness and eliminating visual discomfort brought to people due to inconsistency of display parameters and environment light through joint debugging of brightness and contrast. The main points of the technical scheme are as follows: real-time external light brightness signal parameters are obtained, the brightness signal parameters are analyzed and processed, and the brightness of a display screen is controlled according to an analyzing and processing result. The brightness adjusting method and apparatus are mainly applied to brightness adjustment of a display screen.

The invention discloses an organ-plate-type annular aerial corridor lighting ceiling system and relates to the field of buildings. The organ-plate-type annular aerial corridor lighting ceiling systemcomprises adapting pieces, a cross beam vertical column, a waterproof aluminum plate and a window cleaning machine track. The cross beam vertical column is connected to the adapting pieces through fastening bolts; a perforated aluminum plate is fixed to one side of the cross beam vertical column, and a glass panel is fixed to the other side of the cross beam vertical column; the waterproof aluminum plate is mounted in a mold cavity of the cross beam vertical column; a layer of heat-preservation cotton is further arranged on the surface of the perforated aluminum plate, and a layer of heat-preservation cotton is further arranged between the waterproof aluminum plate and the cross beam vertical plate; and the window cleaning machine track is arranged on the waterproof aluminum plate and connected to the cross beam vertical column through screws. According to the organ-plate-type annular aerial corridor lighting ceiling system, the window cleaning machine track and a curtain wall construction system are perfectly blended together, visual discomfort is avoided, the property of a curtain wall is not affected, and the problem of difficult window cleaning and the attractive problem of through buildings such as a lighting ceiling are solved.

The present invention relates to a composition comprising a natural extract containing anthocyanins and an agent for enhancing vigilance, and to a method for alleviating visual discomfort related to or caused by oxidative stress comprising administering via transmucosal route the composition of the invention, said composition being in a form adapted to transmucosal administration, said form preferably being a chewing gum, an orodispersible / orodisintegrating tablet or film or a buccal spray.

The invention discloses a device for eliminating an overlapping shadow or a track shadow of a point light source, wherein, the periphery of the point light source is provided with a medium component which is provided with a light inlet surface and a light outlet surface that are both cambered surfaces that can scatter light; the point light source is assembled in the medium component, and the light generated by the point light source is input from the light inlet surface of the medium component and then emitted from the light outlet surface so as to diffuse the light into uniform distribution by the medium component, thus eliminating the overlapping shadow or the track shadow which is possibly generated when most devices for eliminating the overlapping shadow or the track shadow of the point light source approach the setting and which causes visual discomfort; in addition, the medium component can add required fluorescent materials according to the color of the point light source to project expected light of mixed colors.

The invention provides a method and a device for image correction, which are applied to the field of image processing, the method comprises the following steps: receiving two images, wherein the two images are images of a target object shot from different viewpoints, and a camera shooting device for shooting the two images comprises a first camera shooting device and a second camera shooting device; determining positions of corresponding feature point pairs in the two images; and aligning the two images according to the positions of the feature point pairs and the parameters of the first camera device and the second camera device. According to the method, the obtained images of different viewpoints can be corrected, so that pixel alignment is ensured, and a viewer does not have a visual discomfort feeling.

The invention discloses a 3D display control method, a control system and a display device, which are used for displaying 2D (two-dimensional) images in part of an area and 3D images in the other part of the area and preventing finally displayed 3D images from causing the visual discomfort of users due to the great difference between the brightness of the 2D area and the brightness of the 3D area in the process of 3D display control. The 3D display control method provided by the embodiment of the invention includes the following steps: driving parameters for driving the display device to display 3D images, which can ensure that the transmittances of the 3D area and the 2D area in a displayed image can meet a preset condition, are determined, and include driving parameters for a parallax barrier and driving parameters for a display panel; the preset condition ensures that the difference between the transmittances of the 3D area and the 2D area in the displayed image belongs to a preset range; and the driving parameters for the parallax barrier are outputted to a driver for the parallax barrier, and the driving parameters for the display panel are outputted to a driver for the display panel.

The invention discloses a boundary reproduction method applied to image splicing. Deviation, caused by difference in collection angles of first and second images to be spliced, of the pixel value is considered, an average value is calculated in a boundary image of the first and second images, it is ensured that the finally obtained boundary image can provide transition for splicing of the first and second images, and visual discomfort caused by jump in pixel values after the first and second image are spliced is avoided; and a first dividing line coordinate and a second dividing line coordinate are equalized to ensure that the first dividing line coordinate transmits smoothly to a first pixel coordinate and a boundary image pixel coordinate as well as that the second dividing line coordinate transmits smoothly to a second pixel coordinate and the boundary image pixel coordinate. The problem that jump of boundary sharpening pixels occurs in a reproduced boundary image and the spliced first and second images is solved.

The invention discloses a method for controlling color gradient of an LED (light emitting diode) lamp. The method includes: dividing the color gradient process of the LED lamp into a plurality of main processes, each main process comprises a plurality of branch processes, and the initial state and the final state of each branch process have at least an identical primary color; equally dividing the color components of each primary color into a plurality of changing components according to the change from the darkest to the brightest; in each of the branch processes, gradually increasing or reducing the color component of at least one primary color according to the proportion of one changing component at a time, wherein the change of the color component is controlled by a current of a corresponding LED lamp set, and the current of the LED lamp set is controlled by a pulse width modulation signal output by a singlechip of the LED lamp; and cycling the plurality of main processes in sequence. The method can control the LED lamp sets with different primary colors in the LED lamp to change gradually according to the changing components and maintain at least one identical primary in the initial state and the final state of each change, thereby achieving the color gradient and avoiding the visual discomfort caused by skipping changes.

The disclosure relates to a method for obtaining a modified multi-view content from an original multi-view content, said method being characterized in that it comprises: determining (20), from a disparity-related map, a separation line separating adjacent first and second image regions, comprising at least one line portion each separating adjacent first and second image portions belonging respectively to the first image region and the second image region and such that a disparity-related value difference between the first and the second image portion is higher than a disparity-related value difference between the first and the second portion is higher than a disparity-related value difference threshold; obtaining (40) a modified multi-view content by blurring a visual discomfort area that is an area of the second image region, which extends from the separation line over a given distance.

The invention discloses a method for enabling the displayed colors of a status bar and a toolbar to change automatically, and the method can be realized through the following steps: getting colors in non-controlled regions; matching the colors in the non-controlled regions with colors enjoying the highest similarity; and designating the obtained colors to controlled regions to realize color changes in controlled regions further to achieve the function of automatic color changing. According to the invention, the function of automatic color changing realized in the method help a viewer avoid visual discomfort from the vast color contrast between the status bar and the toolbar on a computer display for a lack of color transition there-between, and makes displayed contents free of color conflicts and makes the display more visually comfortable. The method also prevents a views from visual discomfort from the mismatch of colors and makes the interface softer in terms of colors.

The invention discloses a display device applied to an electronic product with a light-emitting assembly. A power supply applied to an LED slowly changes by serially connecting a photoresistor to the LED as the light-emitting assembly, or a power supply gradually changing through a power supply control chip serially connected with the LED is applied to the LED, therefore, the brightness of the LED changes from dark to light or from light to dark step by step to provide comfort of visual moderation, and the visual discomfort of a user, brought by sudden change of light and dark of the LED, can be overcome.