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Data compression method, data compression device, data decompression method and data decompression device

A data compression and decompression technology, applied in the field of data processing, to achieve the effect of effective processing, efficient compression and decompression

Active Publication Date: 2012-12-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is a lack of an efficient data compression method to achieve effective compression of the original data stream

Method used

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  • Data compression method, data compression device, data decompression method and data decompression device
  • Data compression method, data compression device, data decompression method and data decompression device
  • Data compression method, data compression device, data decompression method and data decompression device

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Embodiment Construction

[0062] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0063] Such as figure 1 As shown, it is a flow chart of the first embodiment of the present invention, which provides a data compression method, including:

[0064] Step S101, input the original data stream, and determine the size of N bits required to form a symbol with the maximum number of consecutive 0 and 1 bits in the original data stream;

[0065] Step S102, dividing the original data stream into continuous symbol streams composed of each segment of N-bit symbols, and filling with 0 bits when the size of the data stream composed of consecutive s...

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Abstract

The invention relates to a data compression method including: inputting an original data stream and determining the sizes of required N bits for forming a symbol, wherein N is more than or equal to 1; segmenting the original data stream to continuous symbol streams respectively formed by each N bit symbol; and distinguishing compression symbols from non-compression symbols, compressing according to a preset compression format and outputting a compressed data stream. The invention further relates to a data compression device, a data decompression method and a data decompression device. By the aid of the technical scheme, data can be efficiently compressed and decompressed, so that the original data stream is effectively processed.

Description

technical field [0001] The invention relates to the field of data processing, in particular, to a data compression method and device, and a data decompression method and device. Background technique [0002] Data compression refers to a technical method to reduce the amount of data to reduce storage space and improve its transmission, storage and processing efficiency without losing information. Or reorganize the data according to a certain algorithm to reduce data redundancy and storage space. Data compression includes lossy compression and lossless compression. Lossy compression takes advantage of the fact that humans are not sensitive to certain frequency components in images or sound waves, allowing certain information to be lost during the compression process; although the original data cannot be completely restored, the lost part has less impact on understanding the original image , but in exchange for a much larger compression ratio. Lossy compression is widely use...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N19/184H04N19/64
Inventor 张帅许进郁光辉胡留军
Owner ZTE CORP
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