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Image processing method and system

An image processing and image technology, which is applied in the field of image processing and can solve the problems of slow filtering processing speed and simultaneous filtering of adjacent macroblocks.

Active Publication Date: 2018-01-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It is stipulated in the prior art that the loop filter needs to filter the boundaries sequentially according to the specified order, and the filtering of the latter boundary needs to rely on the filtering result of the previous boundary, so that adjacent boundaries and adjacent macroblocks cannot be filtered simultaneously, resulting in Filter processing is slow

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Embodiment Construction

[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0075] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than...

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Abstract

The embodiment of the present invention relates to the technical field of image processing, and discloses an image processing method and system. Wherein, the method includes: dividing the macroblock of the image into a plurality of sub-blocks; determining the boundary to be filtered according to the first-type pixel values ​​on both sides of each boundary of the sub-block; calculating the filter strength parameter of the boundary to be filtered; according to the The filter strength parameter modifies the first type of pixel values ​​on both sides of the boundary to be filtered; the first type of pixel values ​​include: pixel values ​​p0, p1, q0, q1 on both sides of the vertical boundary, or on both sides of the horizontal boundary The pixel values ​​of m0, m1, n0, n1. The image processing method provided by the embodiment of the present invention can remove the data correlation of adjacent boundaries in the loop filtering method, so that both adjacent boundaries and adjacent macroblocks can be filtered simultaneously.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method and system. Background technique [0002] H.264 is superior to existing video coding standards such as MPEG2, MPEG4 and H.263 in terms of video quality, compression efficiency and data packet recovery. Under the same reconstructed image quality, H.264 can save about 50% bit rate compared with H.263. However, the superior performance obtained by H.264 is at the cost of increased computational complexity, which is equivalent to three times that of H.263. Therefore, how to improve the computing efficiency of each module in H.264 to achieve real-time processing has become an important research topic. [0003] Loop filtering (also known as deblocking filtering) is one of the key processing links in the H.264 standard. Both the encoder and the decoder include a loop filtering link, which is used to filter the reconstructed image to remove ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/82H04N19/117
Inventor 郑士胜郭成安
Owner HUAWEI TECH CO LTD