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Image coding method and device

An image coding and coding technology, which is applied in the field of image coding, can solve the problems of affecting bit rate delay time, occupying bandwidth resources, and large data redundancy, so as to achieve the effect of reducing bit rate, reducing delay, and reducing data volume

Active Publication Date: 2014-12-10
BEIJING CYBER CLOUD TECH
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Problems solved by technology

The image transfer in this technical solution is to use the traditional video codec technology to encode-transmit-decode-display the data image. The data redundancy is very large, and the static parts in a large number of pictures in the game are repeatedly coded and transmitted, occupying a large amount of time. A large number of bandwidth resources seriously affect the bit rate and transmission delay time

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0019] figure 1 It is a flow chart of the image coding method provided by the embodiment of the present invention, the method can be applied to the cloud of the cloud game transmission system, figure 2 For the schematic diagram of the cloud game transmission system, please refer to figure 2 , the cloud game transmission system includes a cloud 21, a transmission network 22, and a client 23, wherein the cloud 21 is composed of multiple servers 211-21n, these servers are not necessarily in the same geographic location, they may be scattered in dif...

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Abstract

An image coding method and device are provided in the embodiments of the present invention. The method includes the following steps of: determining content-altered macro blocks of a video image which will be transmitted; generating a macro block coding matrix of the video image which will be transmitted in accordance with the content-altered macro blocks; and coding the macro block coding matrix in a run-length coding manner. According to the method and device in the present embodiments, when coding, plentiful repetitious work is reduced; coding and transmission are only performed on the altered portions of an image and as the data of the unaltered portions of the image, the data of the same portions of previous frame will be used as it is. Therefore, coding and transmission data amount is greatly reduced, so as to achieve the purpose of reducing code rate and delay.

Description

technical field [0001] The present invention relates to the field of image coding, in particular to an image coding method and device. Background technique [0002] In the field of image coding, video image data is mostly encoded, and video image data has a strong correlation, that is to say, there is a large amount of redundant information, and the redundant information can be divided into spatial redundant information and time domain redundant information. The compression technology is to remove the redundant information in the data, that is, to remove the correlation between the data. Common video encoding methods include MPEG-2, MPEG-4, H.264, etc. [0003] At present, the transmission of Internet games is mainly parameter passing. The online game running on the server side only transmits the changed parameters in the game to the client side. The user pre-installs the game resources on the local side. When receiving the game parameters, only the local resources are use...

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Application Information

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IPC IPC(8): H04N21/234
CPCH04N19/507
Inventor 徐文山
Owner BEIJING CYBER CLOUD TECH
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