Image compression method and device, image decompression method and device and image compression and decompression system

An image compression and decompression technology, applied in the field of image processing, can solve problems such as inefficient compression level, achieve the effect of reducing redundancy and increasing compression rate

Active Publication Date: 2018-03-13
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This level of compression is highly inefficient for the ensuing

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  • Image compression method and device, image decompression method and device and image compression and decompression system
  • Image compression method and device, image decompression method and device and image compression and decompression system
  • Image compression method and device, image decompression method and device and image compression and decompression system

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only use...

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Abstract

The invention discloses an image compression method and device, an image decompression method and device and an image compression and decompression system. The image compression method comprises the steps of receiving an input image; carrying out image coding on the input image through utilization of cascaded n-level coding units, thereby generating an output image, wherein the n is an integer greater than or equal to 1, i is greater than or equal to 1 and is smaller than n, the input of an ith level coding unit is an ith level coding input image and comprises (m to the power of i-1) image components, the output of the ith level coding unit is an ith level coding output image and comprises (m to the power of i) image components, the output of the ith level coding unit is the input of an (i+1)th level coding unit, and the m is the integer greater than 1; and outputting the output image, wherein the output image comprises a reference image corresponding to the input image and (m to the power of n)-1 image components corresponding to the input image.

Description

technical field [0001] The present disclosure relates to the field of image processing, and in particular to a compression coding method, a compression coding device, a decompression method, a decompression device, and an image processing system including the compression coding device and the decompression device. Background technique [0002] A compression encoder is a system that takes data information from a source, such as an image or video, and compresses the information to reduce its overall size for storage or transmission. A compression coder generally consists of three modules: transform coding, quantization, and entropy coding. The transform coding module is used to transform the input image into an image that is equivalent to the input image (this process can be recovered) but more easily compressed, and this effect can be achieved by reducing the redundancy in the image (typically having many consecutive zero values). The quantization module is used to limit the...

Claims

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Application Information

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IPC IPC(8): H04N19/17H04N19/42H04N19/50H04N19/61H04N19/63H04N19/85G06N3/08G06N99/00G06V10/776
CPCH04N19/17H04N19/42H04N19/50H04N19/61H04N19/63H04N19/85G06N20/00G06N3/08H04N19/172H04N19/635H04N19/126G06V10/776G06F18/00G06F18/217
Inventor 那彦波刘瀚文
Owner BOE TECH GRP CO LTD
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