Scalable video coding with grid motion estimation and compensation

A technology for motion estimation and extended video, applied in the field of video coding, can solve the problems that company A is not the best, low bit rate, etc.
CN100588257CInactive Publication Date: 2010-02-03AGENCY FOR SCI TECH & RES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AGENCY FOR SCI TECH & RES
Publication Date
2010-02-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A scalable coder having a grid motion estimation and compensation module (110), a motion compensation temporal filtering module (105), a scalable coding module (115), a discrete transformation module(120), and a packetization module (135). The grid-motion estimation and compensation module (110) outputs a scalable motion vector from the source video data, supplied resolution and bit rate parameters. The motion compensation temporal filtering module (105) generates, from the source video data and the scalable motion vector, a residual image corresponding to the difference between the present and previous image frames. The scalable coding module (115) is coupled to receive and encode the scalable motion vector. The discrete transformation module (120) is configured to receive and domain transform the supplied video to a sequence of coefficients. The packetization module is coupled to the scalable coding module (115) and the discrete transformation module (120), and is operable to combine the encoded scalable motion vector and the sequence of coefficients into a packet.
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Description

[0001] Cross References to Related Applications

[0002] This application claims the benefit of US Provisional Application 60 / 582,444, filed June 23, 2004, which is hereby incorporated by reference in its entirety for any purpose. technical field

[0003] The present invention relates to video coding and in particular to scalable video coding in which motion estimation and compensation can be optimized as a function of desired bit rate range, frame rate and resolution. Background technique

[0004] Three-dimensional sub-band wavelet coding has been proposed as a high-efficiency scalable video coding (SVC) technology in J. Ohm's "Three Dimensional Sub-band Coding with Motion Compensation", IEEE Trans. on Image Processing, Vol.3, No. 9, pp559-571, Sept 1994 describes its development. In this scheme, four kinds of redundancies are eliminated: temporal, spatial, perceptual and statistical.

[0005] Temporal redundancy can be eliminated by performing open look based motion comp...

Claims

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