A method for compressing and decompressing data of this frame with high compression rate and high reducibility

A compression method and technology for compressing data, applied in the direction of digital video signal modification, image communication, electrical components, etc., can solve problems such as reliability, real-time performance and reductibility cannot be guaranteed, and achieve integrity, efficiency, and speed. Effect

Active Publication Date: 2022-08-05
上海定九康科技股份有限公司
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Problems solved by technology

[0007] In order to overcome the technical defects of the prior art, the present application provides a data compression and decompression method of this frame with high compression rate and high reducibility, which is used to solve the problems of reliability, real-time and reducibility during data compression and transmission in the prior art. non-guaranteed issues

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  • A method for compressing and decompressing data of this frame with high compression rate and high reducibility
  • A method for compressing and decompressing data of this frame with high compression rate and high reducibility
  • A method for compressing and decompressing data of this frame with high compression rate and high reducibility

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Embodiment 1

[0060] refer to figure 1 As shown, this embodiment provides a method for compressing and decompressing data of this frame with high compression rate and high reducibility, including a compression method and a decompression method. Wherein, the compression method includes the following steps:

[0061] Step S110: Receive the data frame X to be processed 0 ={x 1 ,...,x i ,...,x m }, whose length is m. In this step, the input data frame with the specified length of m is received.

[0062] Step S120: Use the first-order backward difference method to process the data frame to obtain the initial value x of the data 1 and differential signal X 1 ={0,x 2 -x 1 ,...,x i -x i－1 ,...,x m -x m-1 }.

[0063] In this step, the data initial value x 1 Stored in the header data of the data packet.

[0064] In this step, the data frame is processed by the first-order backward difference method, so as to improve the distribution concentration in the data value. In some application...

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Abstract

The invention discloses a method for compressing and decompressing data of this frame with high compression rate and high reductibility, including a compression method and a decompression method; The coefficient interception is performed on the WHT transformed data, the stepwise quantization is performed on the retained data after interception, the bit stream recombination is performed on the quantization result, and the byte stream data after the bit stream recombination is obtained, and then the byte stream data is compressed by compression coding. , get the final compressed data and output it. The decompression method is a reverse operation to obtain decompressed data. The method for compressing and decompressing data of this frame of the present invention has the characteristics of high compression rate and high reduction rate. By simplifying the data processing unit, the compression rate and reducibility are improved, thereby reducing the occupied capacity in the process of storage and transmission, and at the same time improving the transmission rate. speed, shorten the transmission time, and ensure the real-time and stability of the data.

Description

technical field [0001] The invention relates to the field of data compression, in particular to a method for compressing and decompressing data of this frame with high compression rate and high reducibility. Background technique [0002] Data compression is a technology that reduces the amount of data by re-encoding redundant information in the signal or selecting components of the signal. [0003] In the fields of computer science and information science, compression algorithms are widely used to reduce the storage cost and transmission cost of data, so as to improve transmission efficiency and save costs. Especially in the application of long-distance wireless signal transmission, high-efficiency data compression enables many applications to complete transmission tasks in the case of low bandwidth. Since it can help reduce operating costs such as storage space or connection bandwidth, data compression technology has always been a hotspot in research and technology impleme...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/124H04N19/13H04N19/184H04N19/42
CPCH04N19/42H04N19/124H04N19/13H04N19/184
Inventor 滕磊李自明王利明徐峰
Owner 上海定九康科技股份有限公司
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