88results about How to "Reduce display lag" patented technology

A method for reducing line display latency on a touchpad device is disclosed. The method comprises storing information regarding a plurality of prior touch events on a touch screen of the touchpad device into an event buffer. It further comprises determining an average speed and a predicted direction of motion of a user interaction with the touch screen using the plurality of prior touch events. Next, it comprises calculating a first prediction point using the average speed, the predicted direction, and a last known touch event on the touch screen. Subsequently, it comprises applying weighted filtering on the first prediction point using a measured line curvature to determine a second prediction point. Finally, it comprises rendering a prediction line between the last known touch event on the touch screen and the second prediction point.

An image file, which typically represents a palette-based image that has been encoded using a first predefined run-length based encoding method, is decoded to produce an image data array. The image data array is divided into blocks; either all the blocks or a majority of the blocks have a predefined fixed size. At least some of the blocks of the image are processed to produce a corresponding re-encoded block. In particular, each such block is processed by applying a plurality of distinct encodings to the block to produce an equal plurality of distinct re-encoded block versions. One of the plurality of distinct re-encoded block versions is selected in accordance with predefined selection criteria for use as the re-encoded block. Each re-encoded block is stored in a distinct data structure, such as a file. In a client-server network, when a low bandwidth client device requests an image file, just the block image files needed by the client device are downloaded, thereby greatly reducing the request to display delay.

A display control device includes an image data generating section and a control section. The image data generating section is configured to perform generation processing for generating image data in a predetermined processing sequence for each of a plurality of predetermined data units of the image data. The control section is configured to control a display unit to execute display processing based on the image data in the processing sequence for each of the predetermined data units. The control section is configured to control the display unit so that the longer a first time relating to the generation processing for one of the predetermined data units of the image data is, the longer a second time until the display processing starts for the one of the predetermined data units of the image data is.

An image-capturing device includes an image-capturing section, an image-data-generation section, a progress-information-acquiring section, and an image-capture control section. The image-capturing section captures an image of a subject and repeatedly generates image-capture data of frames which represent single video frames. The image-data-generation section carries out processing for generating image data indicating an image of the subject, on the basis of image-capture data of the image-capturing section. The progress-information-acquiring section acquires progress information indicating progress of processing for generating the image data. The image-capture control section controls, on the basis of the progress information, a timing for starting the generating of the image-capture data for the next frame in the image-capturing section.

The invention provides a virtual reality image display method and device and virtual reality equipment. The method can be applied to the virtual reality equipment. The method comprises the steps thata latest rendering-completed image is acquired; a first head pose after first preset duration is predicted based on an acquired first current head pose, wherein the first preset duration is duration required for performing first time warping processing on the latest rendering-completed image; first time warping processing is performed on the latest rendering-completed image according to the firsthead pose to obtain a first warped image matched with the first head pose; and the first warped image is output into a display cache, so that the first warped image is displayed when a vertical synchronization signal Vsync of a current frame is received. Through the method, display delay of the image can be shortened, and the smoothness of a display picture can be improved.

An embodiment of the invention discloses a white balance adjusting method, device and terminal. The white balance adjusting method comprises obtaining a frame rate of a first camera; judging whether the frame rate is a maximum frame rate or not and obtaining a first image through the first camera if yes; analyzing the first image to obtain white balance gain of the first image; adjusting white balance on a second image through a second camera through the white balance gain; displaying the second image after white balance adjusting. The white balance adjusting method can improve the white balance adjusting speed and reduce the display delay of the image after white balance adjustment under the condition that the image quality is not influenced.

The invention discloses a method and a device for sending data under a VDI (visual desktop infrastructure) environment. By adopting the technical scheme, when a desktop protocol client is under the abnormal condition, a desktop protocol server sends the data of desktop images to the desktop protocol client at the rate lower than the rate of the normal condition; on one hand, as the sending rate is reduced, one part of system resources can be saved, and the occupation of the resources of a server by a virtual machine is reduced; on the other hand, when the desktop protocol client is in the abnormal condition, the desktop protocol server can still send the data of the desktop images to the desktop protocol client, and when the desktop protocol client restores to the normal state, the amount of the data to be sent by the desktop protocol server is greatly reduced in comparison with the prior art, so the occupation of the network bandwidth is reduced, the display time delay is reduced, and the experience of a user is improved.

The invention discloses a webpage data processing method and device, a storage medium and computer equipment, relates to the technical field of networks, and can effectively solve the problem that thewebpage data display speed is low when webpage data are requested from a website server and then the received webpage data are rendered. The method comprises the following steps: receiving a webpagedata acquisition request sent by a webpage browser, wherein the acquisition request carries website information; The rendered webpage data corresponding to the website information are inquired from apreset cache position, rendered webpage data corresponding to different website information are cached in the preset cache position, and the cached rendered webpage data are obtained through estimation according to the real-time webpage access record information of the webpage browser; And sending the queried rendered webpage data to the webpage browser. The webpage data processing method and device are suitable for webpage data processing.

The invention relates to a method for head attitude compensation. The method comprises: according to display time of at least two rendered image frames, predicting rendering completion time t1 of a to-be-displayed image frame; according to the t1, calculating display start time t2 of the to-be-displayed image frame; according to the t2, calculating first time, predicting a first time head attitude Q, according to the head attitude Q, rendering the to-be-displayed image frame; according to start time a of any completed display cycle, calculating start time t of a to-be-displayed cycle; according to the t and the display cycle T, calculating second time, to obtain a second time head attitude Q', and according to the Q and the Q', calculating a head attitude compensation matrix; according to the attitude compensation matrix, performing attitude compensation calculation on the to-be-displayed image frame; according to vertex coordinates after attitude compensation and vertex coordinates of the to-be-displayed image frame, calculating a correction coefficient; and according to the correction coefficient, calculating a display image frame after the head attitude compensation. The method and the device accurately compensate head attitude of the to-be-displayed image frame, so that smear phenomenon and dizzy feeling in VR system use are reduced.

The invention provides a data prediction method and apparatus. The method comprises the following steps: after motion data collected at each collection moment within a preset historical time period are obtained, obtaining a motion mode of a target object according to the motion data collected at each collection moment, selecting a prediction model matched with the motion mode of the target object and a delay parameter related to the prediction model, predicting a next frame of image data called by a virtual reality device through the prediction model according to the motion data collected at each collection moment and the delay parameter. Therefore, the next frame of image data called by the virtual reality device is predicted based on the motion data collected at each collection moment within the preset historical time period so as to reduce the image jitter and display delay, for each virtual reality device, the next frame of image data can be predicted by the technical scheme mentioned above, therefore the universality of the method is higher, and the cost of the virtual reality device is reduced.

Embodiments of the invention disclose a data drawing method and device. The method comprises the following steps of: setting a plurality of drawing canvases on a browser; obtaining a plurality of pieces of to-be-drawn data; and grouping the plurality of pieces of to-be-drawn data to obtain a plurality of data groups, wherein each data group consists of at least one piece of to-be-drawn data, the quantity of the data groups is equal to the quantity of the drawing canvases, corresponding data groups are distributed to the drawing canvases, each data group corresponds to one drawing canvas which is adopted to carry out image drawing on the corresponding data group. According to the method and device, the time, for drawing data images, of the drawing canvases (such as canvas) can be shortened; and compared with the prior art, the method and device have the effects of shortening the data image display time and retarding the display delay.

The invention provides a video playing method and system and equipment. The method comprises the steps that the VR equipment receives a first-resolution and first-view VR video stream sent by a serverand a second-resolution and full-view VR video stream continuously sent by the server, wherein the first resolution is higher than the second resolution; pictures of the first view are played by adopting the first-view VR video stream; when it is determined that the view changes, pictures of the current view are played by adopting the first or both two of the full-view VR video stream and the first-view VR video stream; view information carrying a parameter for indicating to change to the second view is sent to the server; a first-resolution and second-view VR video stream sent by the serveris received; and pictures of the second view are played by adopting the second-view VR video stream. According to the scheme, the problems that a network VR service is wide in occupied bandwidth and long in delay are solved simultaneously, the storage overhead of the server can be reduced, and traffic burst can be avoided.

The invention displays a display panel and a manufacturing method thereof. The display panel comprises a colored filtering substrate, a thin film transistor substrate, a light shading black matrix, a metal line, a light curing adhesive and a light shading layer, wherein the light shading black matrix is located in a non-display area of the colored filtering substrate, and seams are formed in the light shading black matrix; the metal line is located in a non-display area of the thin film transistor substrate; the light curing adhesive is located between the light shading black matrix and the metal line; the light shading layer is located on one side of the colored filtering substrate and correspond to the light shading black matrix. In this way, the frame glue curing of the display panel can be achieved, the signal delay problem of the display panel can be effectively alleviated, meanwhile, light rays can be effectively prevented from leaking out, and the display effect is improved.

The invention relates to an image transmission method and device and an electronic device. The method may comprise the steps of when image collection is carried out through a camera module assembled on an unmanned aerial vehicle, obtaining an image processing instruction sent by a user through a remote control device of the unmanned aerial vehicle, wherein the image processing instruction comprises an image scaling parameter; determining an image area corresponding to the image scaling parameter in the collected image of the camera module; resampling the image data corresponding to the image area in the collected image according to the screen resolution of the remote control device; and transmitting a resampling image obtained through resampling back to the remote control device, thereby displaying the resampling image on a screen of the remote control device. Through application of the technical scheme of the invention, the image display focal length adjustment can be realized on the remote control device, the data transmission quantity of the image is reduced, the delay is reduced, and the image display fluency on the remote control device is improved.

An Internet Protocol Television (IPTV) broadcasting system is provided. The IPTV broadcasting system includes: An Internet Protocol Television (IPTV) broadcasting system for reducing a display delay when a channel is changed, including: a stream transmitting apparatus receiving a broadcast channel stream, generating an acceleration stream from the broadcast channel stream, and transmitting the broadcast channel stream and the acceleration stream; and a set-top box receiving the broadcast channel stream and the acceleration stream from the stream transmitting apparatus, and reproducing a decoding stream, according to a type of a received frame in the broadcast channel stream and the acceleration stream. Therefore, it is possible to reduce a display delay when a channel is changed.

the invention discloses an image processing method and a head-mounted display device, and relates to the communication technology field. By providing a high-resolution image for a central area of a user and providing a low-resolution image for the background area, the image definition requirement of the head-mounted display device is met, and the data size of the image can be reduced. The method can be applied to the HMD, the HMD comprises two modules, and each module comprises a camera module, a display screen corresponding to the camera module and a processing module. The camera module comprises a first camera and a second camera, and each module executes the following steps that in response to a detected starting operation, the first camera collects a low-resolution first image, and thesecond camera collects a high-resolution second image; the processing module generates a fourth image according to the first image and the second image, wherein the fourth image comprises a low-resolution image and a high-resolution image; the processing module generates a fifth image according to the fourth image and a third image containing the virtual object, and the display screen displays the fifth image.

An apparatus includes an overlay buffer configured to store overlay data; a touch path logic to: receive first touch events from the first touch sensor panel and generate a first output based on the first touch events, and receive second touch events from the second touch sensor panel and generate a second output based on the second touch events; and a rendering logic to, when the first touch events occur: receive a first video image; receive the first output; and combine the first video image with the overlay data corresponding to the first video image to output at least one combined display image, and, when the second touch events occur: receive a second video image; receive the second output; and combine the second video image with the overlay data corresponding to the second video image to output the at least one combined display image.

Provided is a data acquisition method including the steps of selecting a link destination whose display is at least partially located in a region of a display screen corresponding to an operating tool, acquiring, before the link destination is selected, information relating to a layout of a display screen and display control data including at least a structural unit in which the information is written, the display control data and the information existing at the link destination, extracting structural units included in the display control data, in a case the prefetched link destination is selected, generating first structured data by linking the extracted structural units in which information involving script-process isn't written, generating second structured data by linking the extracted structural units, displaying a display screen using the first structured data, and redisplaying, at a stage the second structured data is generated, the display screen using the second structured data.

Embodiments of the invention provide a smart interaction tablet and a vector diagram processing method, a vector diagram processing system, a vector diagram processing device and equipment. The systemincludes a first processor and a second processor, wherein the first processor is configured to connect a first screen, and the second processor is configured to connect a second screen; the first processor converts the vector diagram into a bitmap, generates identification information corresponding to the vector diagram and the bitmap, encapsulates the bitmap and the identification information into a data packet, and sends the data packet to the second processor; and the second processor parses the data packet, and correspondingly stores the parsed bitmap and identification information. In the embodiments of the invention, the first processor converts the vector diagram into a bitmap before the operation of triggering the display of the vector diagram occurs, and the second processor only needs to correspondingly store the bitmap and the identifier information, that is, after the operation occurs, the corresponding bitmap is directly displayed to the second screen, so that the display speed of the vector diagram on the second screen may be effectively improved, and the display delay is reduced.

A real-time virtual reality (VR) acceleration method, includes: obtaining an input image (101); partitioning an output image buffer into M rows and N columns of rectangular grid blocks (103); calculating, according to an algorithm integrating anti-distortion, anti-dispersion, and asynchronous time warping (ATW), vertex coordinates of input image grid blocks corresponding to the output image buffer grid blocks (105); calculating two-dimensional mapping coefficients of each pair of grid blocks in the output image buffer and the input image (107); calculating, according to the two-dimensional mapping coefficients, coordinates of an output image pixel corresponding to an input image pixel (109); selecting at least four pixels adjacent to the coordinates of the input image pixel, to calculate the output image pixel value (111); and outputting an image after anti-distortion, anti-dispersion, and ATW (113). VR experience effect of reducing GPU load, reducing bandwidth consumption, decreasing delay, and no dizziness is achieved.

A video encoder 101 encodes image data of an input moving image based on prediction and generates a video bitstream of encoded pictures. A refresh controller 102 refreshes such that a partial area in the picture is assumed as a unit area to be refreshed and the unit area to be refreshed is moved on a picture-by-picture basis. A display-enabled area encoder 103 encodes a display-enabled area for each picture and generating a display-enabled area information bitstream in refreshing. A multiplexer 104 multiplexes the video bitstream and the display-enabled area information bitstream.

The embodiment of the invention discloses a thumbnail display method, device and system. The thumbnail display method comprises the steps that the information, sent by a user terminal, of a thumbnail to be displayed is obtained, at least two display unit areas are displayed on a display interface, the current thumbnail to be displayed is determined according to the associated information between the display unit areas and the thumbnail to be displayed, a thumbnail loading request for the current thumbnail to be displayed is sent to the user terminal, a thumbnail returned by the user terminal according to the thumbnail loading request is received, and the received thumbnail is displayed on each display unit area. By the adoption of the thumbnail display method, device and system, the thumbnail display time delay can be reduced, and the image processing efficiency can be improved.

The embodiment of the invention discloses a list item preloading method and device, equipment and a storage medium. The method comprises the steps that for any list item, the state of the list item isdetermined according to the distance relation between the list item and the current screen display range, and the state of the list item comprises a data obtaining state, a to-be-displayed state anda visible state; carrying out loading operation matched with the state on the list item according to the state of the list item; wherein the loading operation of the data acquisition state is downloading data, the loading operation of the to-be-displayed state is rendering according to the downloading data, and the loading operation of the visible state is displaying. Through the technical schemeof the embodiment of the invention, the display delay of the list item can be shortened, and the user experience is improved.

An embodiment of the invention relates to the field of display technologies, in particular to a VR (virtual reality) device based display method and system. The VR device based display method comprises steps as follows: when a VR device works in a normal state, a display unit is controlled to work in a display state in a first predetermined area; collected data of head motion is obtained, and compensation data is formed through calculation of the collected data; a first display area is formed through combination of the compensation data and the first predetermined area, so that the first display area is matched with the compensation data. According to the VR device based display method and system, a compensation area is reserved by the VR device, when a user transmits the head motion, a current first predetermined display area is switched to the first display area matched with the head motion by means of the compensation area, only the current display area is switched instead of switching of display of the whole screen, so that VR display delay is reduced, anti-shaking effect of VR display is improved, and dizzy feeling is avoided.