193results about How to "Avoid visual fatigue" patented technology

The invention discloses a vivid and interesting desktop icon displaying method and device. The method includes the following steps: when entering a desktop, initializing desktop icons, and randomly distributing same or different initial directions and initial speeds to all the desktop icons of the current desktop; detecting whether collision occurs among the icons or not in real time; if yes, playing a pre-stored first collision sound, and calculating respective motion directions and motion speeds of two collided icons according to the momentum conservation law and the energy conservation law; detecting whether the icons collide with the edge of a touch screen or not in real time; if yes, playing a pre-stored second collision sound, wherein the icons rebound in a collision speed. After the vivid and interesting desktop icon displaying method and device is applied, the terminal desktop displays showy dynamic effect and makes the icon collision sounds, and users can interact with the desktop and optionally change motion state of the icons, so that much interestingness is realized, and the users have a lot of fun and good use and operation experiences.

The invention provides a diopter self-adaptive head-mounted display device including a display facing people's eyes, an optical lens between the display and the people's eyes, and an eyeball tracking module, the display shows a frame by facing the people's eyes, the distance from the display to the center of the optical lens is object distance u, the optical lens is used for focusing the frame of the display to be an image to be clearly seen by the people's eyes, the virtual image of the image and the people's eyes are arranged at the two sides of the display, the distance from the virtual image to the center of the optical lens is image distance v, the optical lens is provided with a focal distance f, the eyeball tracking module is used for detecting the sight direction of the two eyes to position the observation point position of a user, the relative position of the display and the optical lens is adjusted based on the position of the observation point, the display and the optical lens can perform relative movement separately or together along the direction of an optical axis, the distance from the center of the optical lens to the display is adjusted based on the observation point position acquired by the eyeball tracking module to make the adjusted object distance u satisfy the condition of 1/f=1/u-1/v.

The invention discloses a stone side slope biological control method which comprises the following steps of (1) side slope status analysis and safety evaluation, (2) nursery stocks pre-cultivating, (3) bird nest type layout, (4) bionic nest building, (5) formula planting and (6) community forming. The stone side slope biological control method integrates the engineering mechanics, the ecology, the aesthetics, the biotechnology and other disciplines and fields, a stable and ecological three-dimensional side slope can be quickly formed, the landscape effect is good, the ecological benefit is lasting and stable, maintenance cost is low, maintenance difficulty is low, the slope fixing effect is obvious, a protection function is outstanding, and the method is used for side slope protection of roads, railways, dams and the like, and also can be used for ecological management of desertification and stony desertification.

The invention relates to a desktop color matching method, a desktop color matching apparatus and an intelligent terminal. The method comprises: analyzing a background image and selecting at least one dominant color from the background image; analyzing the dominant color and computing a plurality of filling colors with gradually-changed luminance according to luminance of the dominant color; and sequentially setting the filling colors as background colors of a plurality of specific areas. According to the invention, a desktop color layout is more reasonable, colors are changed gradually, icons are highlighted, efficiency of searching an application by a user is improved, and user visual fatigue is effectively avoided.

The invention relates to a plant noise barrier, which comprises a bracket upright column (4), wherein one or more plant cultivation boxes (2) are fixed on the bracket upright column (4); a plurality of sound insulation fins (3) are arranged outside the plant cultivation boxes (2); and an inclined angle is formed between each sound insulation fin (3) and the horizontal plane. The plant noise barrier has the effects of beautifying roads, preventing visual fatigue and absorbing carbon dioxide and harmful gases, can insulate sound and reduce noise by coacting the sound insulation fins and complexoverlapped plant stems and leaves, greatly reduces automobile and other noise pollution, and has better sound insulation and noise reduction effects than the traditional single noise barrier. Moreover, because each sound insulation fin has a noise reduction structure and is more effective than a wall which insulates sound and reduces noise through plants singly, the defects that the wall hardly has sound insulation and noise reduction effects in the absence of plants are overcome.

The invention relates to a display font size adjustment method and apparatus, and a terminal device. The method is applied to a display. The method comprises the steps of obtaining a target text size and a pixel dot spacing of a displayed image in a display screen of a display; obtaining a target dots-per-inch (DPI) value according to the target text size and the pixel dot spacing; and sending the target DPI value to a display card of a host. According to the display font size adjustment method and apparatus, and the terminal device provided by embodiments of the invention, the DPI value of a system text needed to be displayed in the display screen is calculated according to the optimal font size needed to be displayed in the display screen and suitable for a user to watch and the pixel dot spacing of the current display screen through the display, and the DPI value is sent to the display card, so that the display card can update the current DPI value to the target DPI value, the physical font size of the system text is increased and matched with the optimal font size suitable for the user to watch, and visual fatigue of the user is avoided.

The embodiment of the invention discloses a display driving circuit and a control method thereof, and a display device, and relates to the display technology field, and the display driving circuit and the control method thereof can avoid the problem that bad frames are displayed. The display driving circuit comprises a grid driver, a pulse width regulator, a timing controller and a signal detection unit. The signal detection unit is configured to determine whether first control signals provided by the pulse width regulator to the grid driver and second control signals provided by the timing controller to the grid driver are short-circuit or not; when the first control signals or the second control signals are short-circuit, feedback signals are outputted to the pulse width regulator and/or the timing controller; the pulse width regulator is configured to generate first enabling signals configured to control closing of a backlight module according to the feedback signals; and the timing controller is configured to generate second enabling signals configured to control the display panel to display black frames according to the feedback signals. The display driving circuit is configured to drive the display panel for display.

Disclosed are a method for driving a glasses-type stereoscopic display preventing visual fatigue and refractive index-variable shutter glasses. The method includes generating a plurality of left-eye viewing point images and a plurality of right-eye viewing point images. The plurality of left-eye viewing point images and right-eye viewing point images have viewing points different from each other. An initial left-eye viewing point image and a subsequent left-eye viewing point image of the plurality of left-eye viewing point images are output, and an initial right-eye viewing point image and a subsequent right-eye viewing point image of the plurality of right-eye viewing point images are output. Each of the plurality of left-eye viewing point images and right-eye viewing point images is inputted into a single pupil. The glasses include a refractive index control unit to control a strength of an electric field to vary a refractive index of the glasses.

The liquid crystal display (LCD) device includes a LCD faceplate, a scan drive, a data drive, a driving controller, a light sensor, a light source, and a backlight drive circuit (BDC). The scan drive provides scan signal to the LCD faceplate. The data drive provides image signal to the LCD faceplate. The driving controller controls the scan drive, and the data drive to drive the LCD faceplate to display image. Sensing external light, the light sensor generates a light-sensing signal. BDC is in use for driving luminescence of the light source to provide light beam for the LCD faceplate. Receiving and recognizing the light-sensing signal, BDC can determine frequency and brightness of external light based on the light-sensing signal. Then, BDC controls luminescence brightness, and luminescence frequency based on frequency and brightness of external light.

The disclosure relates to a method and apparatus for adjusting a display image. The method comprises: monitoring a distance between a user located in front of a display screen and the display screen; and when it is monitored that the distance between the user and the display screen is less than a preset threshold value, determining the adjusted size of an image on the display screen according to the distance, or according to a user preset parameter; and displaying the image the display screen in accordance with the adjusted size. The method and apparatus can adjust the displayed image size adaptively according to a change in the viewing distance of the user, and improve watching experience while avoiding the visual fatigue of the user and protecting the user vision.

The present invention provides an interface display method and apparatus for a train display screen. The method comprises: receiving a main interface display instruction, wherein the main interface display instruction is used for instructing the display screen to display a main interface; controlling the main interface to be displayed on the main display; and sequentially setting a first area, a second area, a third area, and a fourth area in the first direction on the main interface, wherein a public information display area is located in the first area, a fault information display area is located in the third area, a key information display area is located in the fourth area, a first sub area and a second sub area arranged next to each other are sequentially set in the second direction in the second area, an operating state display area is located in first sub area, and a main display area is located in the second sub area. According to the interface display method and apparatus forthe train display screen provided by the present invention, the problem that the interface layout of the train display screen in the prior art is unclear can be solved, and the use experience of the driver is enhanced.

The invention discloses a method for measuring imaging distortion of a hard-pipe endoscope. A target pattern can be generated by a liquid crystal display, and can be generated by an independent control system of the liquid crystal display. The target pattern or target stripe gaps can be changed according to actual measurement requirements to satisfy different measurement accuracies or different measurement requirements. The liquid crystal display is regarded as the target in a measuring device, so that no illumination by an extra light source is needed; the liquid crystal display is flexible and variable; the utilization rate is high; and the precision is also high. The measuring device of the invention adopts an imaging CCD to collect an exit pupil image, and the exit pupil image is imaged through a computer screen, so as to facilitate observation and avoid visual fatigue. According to the invention, a computer is adopted to process the acquired image, and MATLAB software is adopted to carry out image processing to calculate the relative distortion of the endoscope, and the operation is fast; the measurement is intelligent; and the precision is high.

The invention discloses an oral panoramic film decayed tooth depth recognition method based on deep learning. The method comprises the following 5 steps: preprocessing data; segmenting the image; constructing a model; performing feature extraction; and performing classification and identification. According to the method, the convolutional neural network is adopted to identify the decayed teeth, automatic identification of the decayed teeth in the oral cavity panoramic film is realized, and result export of automatic decayed tooth depth identification can be realized. Visual fatigue easily caused by long-term viewing of image data by medical staff is solved, diagnosis and treatment capacity and working efficiency are improved in an assisted mode, medical resource requirements are reduced,and medical efficiency is improved.

The invention provides a light field display device, relates to the technical field of display, and aims to solve the problem of visual fatigue caused by inconsistent monocular focusing depth and binocular convergence depth and prevent a user from feeling dizzy. The light field display device comprises a display screen and a lens unit arranged on the light emitting side of the display screen, wherein the lens unit comprises a plurality of lenses arranged in an array; the display screen is arranged on the focal planes of the plurality of lenses; the display screen comprises a first substrate and a second substrate which are oppositely combined, wherein the first substrate is a light emitting side substrate, the second substrate comprises a plurality of pixel islands arranged in an array, and each pixel island comprises at least one sub-pixel; the plurality of pixel islands correspond to the plurality of lenses; light rays emitted by sub-pixels of the pixel island are transmitted to a view area formed by human eyes through the corresponding lenses to be smaller than or equal to a half pupil area, and light rays, emitted by different sub-pixels in the pixel island, of different viewpoints are emitted into different view cone cells through the lenses. The invention is suitable for manufacturing the light field display device.

The invention discloses a screen image display method. The screen image display method comprises the following steps that an image display area of a display screen of a terminal is adjusted according to a preset display adjusting buffer area to make the image display area smaller than a physical display area of the display screen; data detected by a preset sensor is obtained, and whether the terminal moves or not is judged according to the detected data; if yes, the display amplitude and/or position of the image display area are/is adjusted according to the displacement of the terminal so as to reduce the relative displacement of display of a screen image displayed by the image display area and the human eyes. The invention further discloses a screen image display device. According to the screen image display method and device, vision fatigue caused by position transformation of the human eyes and the screen is effectively prevented, and the image display effect is improved.

The method comprises: a1) measuring the brightness value of the brightness field with the highest brightness; a2) setting the stage numbers for the grey scales; setting the brightness value of each stage; wherein, the brightness of each stage comprises at least a two-stage increase sequence segment at its front half part; a4) according to the brightness value of each stage, setting the value of parameter register of each brightness stage. The invention can adapt the visual characteristic of human eyes to make subdivision for the grey level in dark scene so as to deeply render the details in the dark scene.

The embodiment of the present invention provides a recommendation method and apparatus, and a computer device. The method comprises the following steps: obtaining a first total number of times of a user to watch a direct broadcasting room i within a time period before a preset moment t, and a second total number of times of entering a live broadcast subarea s to which the direct broadcasting roomi belongs; obtaining a first moment of the user to watch the direct broadcasting room i for the last time prior to the moment t, and a second moment of the user to watch any direct broadcasting room in the live broadcast subarea s for the last time prior to the moment t; obtaining a third total number of times of the user to watch all direct broadcasting rooms with live broadcast labels in a livebroadcast platform within a time period prior to the moment t, and a third moment of the user to watch any direct broadcasting room with the live broadcast label in the live broadcast platform for thelast time prior to the moment t; and based on the first total number of times, the second total number of times, the first moment, the second moment, the third total number of times and the third moment, determining a surprise value of the user to the direct broadcasting room i at the moment t.

The invention relates to the technical field of oil pressure production, and particularly relates to a preparation process of a silica gel product with color dots. The preparation process of the silica gel product with the color dots comprises: a step I, selection of a main material; a step II, selection of an auxiliary material; a step III, mixing; a step IV, vulcanization molding; a step V, spray-coating of hand-feeling paint. As liquid AB glue is adopted as the main material and a granular material whose color is different from that of the liquid AB glue is adopted as the auxiliary material, an obtained multicolor silica gel product not only can meet the requirement on an apparent surface, but also can meet the requirement on the interior of a non-apparent surface; moreover, the apparent colors of the silica gel product are difficultly influenced by the external factors of friction and the like to fall; the silica gel product has the advantage of being good in stability; in addition, as the auxiliary material whose color is different from that of the main material liquid AB glue is the granular material, the obtained multicolor silica gel product is enabled to be indistinct in color, and can be used for avoiding visual fatigue; moreover, the multicolor silica gel product subjected to the vulcanization molding is interspersed with uniformly distributed granules, and a novel visual perception is given to a person.

The invention provides a visualization monitoring alarm system which acquires, analyzes and processes ambient environmental information of power equipment through combining multiple sensors and a camera. The power equipment visualization monitoring alarm system utilizes a camera, a temperature sensor, a humidity sensor and a wind velocity sensor to acquire ambient environmental information of the power equipment, the acquired multiple pieces of information is subjected to fusion processing to form a pseudo image, the pseudo image is analyzed and processed through a computer, the temperature, humidity and wind velocity in the ambient environment of the power equipment are represented by colors, and acoustic codes are added, so that the manager can monitor environment through sounds directly and observe the environmental change of a monitoring point remotely in real time, and the entire power equipment visualization monitoring alarm system can monitor the ambient environmental information of the power equipment more conveniently.