Image display method and device

An image display and display technology, which is applied in the field of image processing, can solve the problems of sub-image display asynchrony and screen tearing, so as to improve the viewing experience and avoid tearing of the image screen

Pending Publication Date: 2020-11-17
XIAN WANXIANG ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiments of the present disclosure provide an image display method and device, which can solve the problem in the prior art that the large-screen splicing device decodes the sub-images decoded by the decoding end device when they are not displayed synchronously, resulting in tearing of the screen

Method used

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Examples

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example 1

[0168] Assuming that there are four decoding end devices r1-r4, the frame numbers of the frames to be decoded sent by the multicast message are: 3, 4, 4, 4 respectively.

[0169] Since the frame numbers to be decoded by each decoding end device are not all the same, and more than half of the frame numbers (4) are the same, the following processing is performed:

[0170] After r1 discards the current frame to be decoded, it takes out the frame 4 to be decoded; after that, r1, r2, and r3 simultaneously decode the fourth frame obtained respectively.

example 2

[0172] Assuming that there are four decoding end devices r1-r4, the frame numbers of the frames to be decoded sent by the multicast message are: 5, 4, 4, 4 respectively.

[0173] Since the frame numbers to be decoded by each decoding end device are not all the same, and more than half of the frame numbers (4) are the same, the following processing is performed:

[0174] r1 waits for a decoding cycle, that is, does not decode in the current decoding cycle; r1 discards the current frame to be decoded, and takes out frame 4 to be decoded; after that, r1, r2, and r3 simultaneously acquire the fourth frame to decode;

[0175] After the decoding of r1, r2, and r3 is completed, each takes out the next frame to be decoded (the frame number is 5), and notifies other decoding end devices that the current frame to be encoded by r5 is still 5, therefore, it will also carry the coded frame number 5 Notify other decoding end devices, so that all decoding end devices have the same frame seq...

example 3

[0177] Assuming that there are four decoding end devices r1-r4, the frame numbers of the frames to be decoded sent by the multicast message are: 3, 3, 4, 4.

[0178] Since the frame numbers to be decoded by each decoding device are not all the same, and no more than half of the frame numbers are the same, according to the principle of "slower is faster", the decoding device with a relatively lagging frame number, that is, r1 and r2, performs image frame Discard, after discarding, continue to get image frame 4, after that, still notify their respective frame numbers through multicast messages, determine that the frame numbers of the four decoding end devices are the same, and then decode the fourth frame obtained by each.

[0179] Image 6 It is the structure of an image display device provided by an embodiment of the present disclosure Figure 1 , the device is applied to a server such as an image processing server. Such as Image 6 As shown, the device 60 includes:

[018...

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Abstract

The invention provides an image display method and device in the technical field of image processing, and can solve the problem of picture tearing caused by asynchronous display of sub-images decodedby decoding end equipment by spliced large-screen equipment. The specific technical scheme comprises the steps of obtaining at least one current to-be-displayed frame image, first identification information of an image source of the current to-be-displayed frame image and frame identification information of the current to-be-displayed frame image; dividing each current to-be-displayed frame imageto generate at least one current sub-image; performing time synchronization on the decoding end equipment of the at least one display by adopting the reference time; generating a timestamp of each current sub-image; and sending each current sub-image, each timestamp, the first identification information and the frame identification information to target decoding end equipment, so that the target decoding end equipment sends the current sub-image to a target display according to the timestamp, the reference time and the frame identification information. The invention is used for realizing picture synchronization and improving image impression experience of a user.

Description

technical field [0001] The present disclosure relates to the field of image processing, and in particular to an image display method and device. Background technique [0002] In the prior art, an external large-screen system is usually used to display the image of the image source in split screens. The external large screen system includes an image source, a server such as an image processing server, a decoder device and an external large screen device. An external large-screen device can be spliced ​​for multiple displays, and each display is called a split screen. Multiple split screens can form a large screen, therefore, an external large screen device can be divided into at least one large screen. Wherein, each split-screen is connected to the decoder device through a video cable; each decoder device is connected to the image processing server through a network cable. [0003] The process of using an external large-screen system to display images from image sources in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14
CPCG06F3/1446G06F3/1454
Inventor 马权范志刚卢涛
Owner XIAN WANXIANG ELECTRONICS TECH CO LTD
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