Character-type communication message compression method adopting inter-frame coding
A communication message and inter-frame coding technology, which is applied in digital transmission systems, electrical components, and error prevention. The effect of packet data volume, packet length reduction, and delay reduction
Active Publication Date: 2015-05-20
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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[0023] This scheme directly performs Huffman coding on the message, and mostly uses static Huffman coding, without considering the redundant information between the messages, the compression effect is not obvious, the coding efficiency is low, and the waste of the output code stream is caused
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[0076] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0077] This embodiment is applicable to any character-type message, introduces the idea of intra-frame and inter-frame coding in video compression, and proposes a classification method for I and P-frame messages and a design method for inter-frame residuals based on the characteristics of character-type messages, and uses Dynamic Huffman coding compresses intra-frame and inter-frame residuals.
[0078] The variables involved in this scheme are described as follows:
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The invention discloses a character-type communication message compression method adopting inter-frame coding, and the method comprises following steps of reading one frame of message, judging whether the frame of message is a frame I of message or not, if the frame is the frame I of message, directly conducting Huffman coding, otherwise solving a residual error and conducting Huffman coding for the residual error, and then judging whether a next frame of message exists or not. The intra-frame and the inter-frame coding concept in the video compression coding is introduced into the character-type message compression, and the compression ratio of the message is greatly improved by removing two adjacent message or similar message redundancy information; and the dynamic Huffman coding is specifically applied to the nondestructive compression of the frame I of message and frame P of residual part, so that the dynamic Huffman coding advantages can be adequately played, the advantages such as delay reduction, reduction of storage capacity, low transmission requirement and the like can be realized while the message data quantity is remarkably reduced and the message length is also reduced, so that the message can be rapidly, efficiently and inerrably transmitted, shared and allocated, and the storage resource and the communication resource can be greatly saved.
Description
technical field [0001] The present invention relates to an effective compression method based on character-type communication messages. According to the characteristics of character-type communication messages having a limited character set, the idea of inter-frame and intra-frame compression processing in the field of video compression is introduced, combined with Huffman coding, etc. Related technologies have achieved good compression effects. [0002] The present invention is applicable to any occasions such as sharing, storage, and transmission based on the compression of limited character set communication messages, especially when the real-time performance of message transmission is relatively high, and the actual verification can well meet its application requirements. Background technique [0003] Explanation of terms: [0004] [0005] [0006] Data compression methods can be divided into two types: lossy compression and lossless compression according to wh...
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IPC IPC(8): H04L1/00
Inventor 常传文李玮茅文深林明徐伟王远斌嵇亮亮叶玲楼晓祥
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP