Circuit and method based on AVS motion compensation interpolation

A brightness interpolation and motion compensation technology, applied in the field of audio and video digital codec, can solve the problems of low parallelism of interpolation operation, increased pipeline improvement effect, and high memory access pressure, and achieves reduced complexity, reduced waiting time, The effect of reducing access pressure
CN101778280AInactive Publication Date: 2010-07-14SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2010-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a circuit and a method based on AVS motion compensation interpolation, which belong to the technical field of audio and video digital encoding and decoding; the circuit comprises integer-pixel memories I and II, bh and j pixel memories, a memory interface module, one-second and one-fourth pixel interpolation filters, a multiplexer and an adjusting amplitude limiter; the output ends of the circuit comprises integer-pixel memories I and II and the bh and j pixel memories are connected with the input end of the memory interface module; the output end of the memory interface module is respectively connected with the input ends of the one-second and one-fourth pixel interpolation filters; the output ends of the one-second and one-fourth pixel interpolation filters are respectively connected with the input end of the multiplexer; the output end of the one-second pixel interpolation filter is respectively connected with the input ends of the bh and j pixel memories; and the output end of the multiplexer is connected with the input end of the adjusting amplitude limiter, and interpolation results are output by the adjusting amplitude limiter. The invention carries out interpolation operation by the means of improving system parallelism, thereby effectively improving the system performance.
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Description

Technical field

[0001] The invention relates to the technical field of digital audio and video codec, in particular to a circuit and method based on AVS (digital audio and video codec technology standard) motion compensation brightness interpolation operation. Background technique

[0002] AVS (Audio Video Coding Standard) is the audio and video codec standard. It is a national standard with independent intellectual property rights in my country. Its video part was promulgated as a national standard by the Ministry of Information Industry in February 2006. It started on March 1, 2006. implement. The standard is mainly aimed at high-definition and high-quality digital television broadcasting, digital storage media and other related applications. Motion estimation and motion compensation are the main methods to remove temporal redundancy in the process of AVS codec. Due to the continuity of natural moving objects, only using integer pixel prediction between two frames of a vi...

Claims

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