Data compression method and device

A data compression and sub-signal technology, applied in the field of data processing, can solve the problems of insufficient utilization of long-distance information, limited knowledge reserve of engineers, and poor adaptability, so as to achieve fast processing, improve coding rate, and improve adaptive effect

Pending Publication Date: 2021-09-21
MOBVOI INFORMATION TECH CO LTD
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Problems solved by technology

[0002] The current data compression methods for six-axis sensing signals are mainly constructed based on artificial prior knowledge, while the traditional data compression coding methods are limited by the knowledge reserves of engineers, and the adaptability is not strong. Traditional coding tools only use The adjacent data information is lost, and the long-distance information is not fully utilized, and the traditional coding tool compression data method is fixed, and cannot be processed flexibly according to the data characteristics to further improve the compression ratio. Therefore, in the network transmission capacity and data storage In the case of limited capacity, a data compression method with strong adaptability and higher compression ratio is urgently needed in this field

Method used

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Embodiment Construction

[0051] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0052] In order to improve the adaptability of the compressed data method and further improve the compression ratio, such as figure 1 As shown, an embodiment of the present invention provides a data compression method, the method comprising:

[0053] Step 101, collecting a first original signal, where the first original signal is a six-axis ...

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Abstract

The invention discloses a data compression method and device. The method comprises the following steps: acquiring a first original signal; splitting the first original signal into a plurality of first sub-signals and forming a first signal matrix; constructing a first sliding window, collecting a plurality of first sub-matrixes from the first signal matrix by using the first sliding window, selecting a first sub-signal with the maximum signal intensity from each first sub-matrix, and forming a second signal matrix by using the plurality of selected first sub-signals; constructing a second sliding window, collecting a plurality of second sub-matrixes from the second signal matrix by using the second sliding window, selecting a first sub-signal with the maximum signal intensity from each second sub-matrix, and forming a third signal matrix by using a plurality of selected first sub-signals; mapping all the first sub-signals in the third signal matrix to N preset dimensions to obtain N second sub-signals; and performing weighted calculation on the N second sub-signals to obtain N third sub-signals.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a data compression method and device. Background technique [0002] The current data compression methods for six-axis sensing signals are mainly constructed based on artificial prior knowledge, while the traditional data compression coding methods are limited by the knowledge reserves of engineers, and the adaptability is not strong. Traditional coding tools only use The adjacent data information is lost, and the long-distance information is not fully utilized, and the traditional coding tool compression data method is fixed, and cannot be processed flexibly according to the data characteristics to further improve the compression ratio. Therefore, in the network transmission capacity and data storage In the case of limited capacity, a data compression method with strong adaptability and higher compression ratio is urgently needed in this field. Contents of the invention [0003]...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M7/30
CPCH03M7/30
Inventor 李小勇张博李志飞
Owner MOBVOI INFORMATION TECH CO LTD
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