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Filtering method and device for removing block in image encoder/decoder

A filtering method and decoder technology, applied in the field of deblocking filtering method and device, capable of solving problems such as complicated control circuit design of deblocking filtering unit

Inactive Publication Date: 2011-02-23
FARADAY TECH CORP
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

Furthermore, since the pixel Y value reading rules are different between the horizontal pixel deblocking filtering action and the vertical pixel deblocking filtering action, the control circuit design of the entire deblocking filtering unit will be very complicated.

Method used

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  • Filtering method and device for removing block in image encoder/decoder
  • Filtering method and device for removing block in image encoder/decoder
  • Filtering method and device for removing block in image encoder/decoder

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Embodiment Construction

[0045] In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the attached drawings are only for reference and illustration, and are not intended to limit the present invention.

[0046] In order to solve the problem that when the known deblocking filter unit accesses the storage buffer, more storage read cycles must be used to read the Y values ​​of the eight pixels. The present invention proposes a deblocking filtering method and device to solve the known disadvantages, and makes the control circuit perform the same data flow for horizontal pixel deblocking filtering and vertical pixel deblocking filtering.

[0047] Please refer to Figure 4 , which is a schematic diagram of a 4×4 byte memory data exchange (Transpose) program. As shown in the figure, the addresses of 4×4 bytes of memory are Adr(x), Adr(x+4), Adr(x+8), Adr(x+12). A...

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Abstract

This invention discloses a de-diamonds filtration method and a device used in image code-decode devices including: receiving a big diamonds pixel data output by a mobile compensation unit to divide the data into multiple pixel data and carrying out a data exchange process to the data and storing the data into a storage buffer, utilizing said pixel data in the buffer storage to filter the level pixel of the diamonds to update part of the pixel data in the buffer, and exchanging said data in the buffer and carrying out vertical pixel filtration action using the pixel data to update part of saidlarge diamonds pixel data in the buffer.

Description

technical field [0001] The present invention relates to a codec, and in particular to a method and device for deblocking filtering used in a video codec (VideoCodec). Background technique [0002] In recent years, digital players, digital TV boxes, and personal computers have been able to present high-quality images on the screen and have become the mainstream of today's digital video. That is to say, today's TV programs or video clips shown by players can use various image coding and decoding technologies of different specifications to complete high-quality audio and video output. Among them, image coding and decoding technologies are also called image compression and decompression. technology. [0003] At the current stage, the common image coding and decoding technologies on the market include at least MPEG-2, H.264, Divx and so on. In 2003, Microsoft (Microsoft) proposed to the Society of Motion Picture and Television Engineers (SMPTE) that its newly developed image co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24H04N7/26H04N19/80H04N19/86
Inventor 王炳尧蔡伟泰
Owner FARADAY TECH CORP
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