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Data encoding/decoding method and device

A technology of data encoding and decoding methods, applied in the direction of code conversion, electrical components, etc., can solve the problem of error-prone data restoration, and achieve the effect of improving data compression efficiency, achieving lossless compression, and improving data encoding and decoding effects.

Active Publication Date: 2019-03-15
湖南瑞利德信息科技有限公司
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Problems solved by technology

[0004] In view of the above-mentioned situation, it is necessary to provide a data encoding and decoding method and device for the problem that the data recovery of the fast calculation encoding and decoding methods in the prior art is prone to errors

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  • Data encoding/decoding method and device
  • Data encoding/decoding method and device
  • Data encoding/decoding method and device

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Embodiment Construction

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0054] These and other aspects of embodiments of the invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the present invention, but it should be understood that the scope of the embodiments of the present invention is not limited by This restriction. On the contrary, the embodiments of the p...

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Abstract

The invention discloses a data encoding / decoding method and device. The data encoding method comprises the following steps: acquiring a to-be-encoded character string, and adding a character 0 behindevery continuous N characters 1 in the to-be-encoded character string; performing division through a node between the adjacent characters 1 and 0, dividing the to-be-encoded character string into multiple sub-character strings; determining the corresponding encoding coefficient according to the occurrence amount of the continuous characters 1 of each to-be-encoded character string, and encoding each character in each character string according to the corresponding encoding coefficient, thereby obtaining an encoding interval lower limit value of the to-be-encoded character string. The encodingand decoding are performed through the multi-encoding coefficient, the nondestructive compression and reduction of the data are realized when the data compression efficiency is improved.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a data encoding and decoding method and device. Background technique [0002] Arithmetic coding is to encode a string of strings with a number, which is also a method of entropy coding. The difference from other entropy coding methods is that other entropy coding methods usually divide the input message into characters and then encode each character, while arithmetic coding directly encodes the entire input message into a number, one that satisfies (0.0≤n<1.0) decimal n. Arithmetic coding is widely used in image processing and cloud computing as a coding technology for massive data processing. [0003] Most of the current arithmetic coding adopts single-bit coding and decoding, that is, only 1 bit data can be coded in one clock cycle, and the existing coding and decoding methods cannot realize lossless coding and lossless decoding, and data errors often occur when restoring da...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M7/40
CPCH03M7/4012
Inventor 王杰林
Owner 湖南瑞利德信息科技有限公司
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