Reference selection for video interpolation or extrapolation

A video unit, selective technology, applied in the field of digital video decoding, which can solve the problems of undesirable spatial artifacts, damage to visual quality, etc.
CN101939992AActive Publication Date: 2011-01-05QUALCOMM INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QUALCOMM INC
Publication Date
2011-01-05

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Abstract

Display of an interpolated or extrapolated video unit, such as a video frame, may be selectively enabled based on a quality analysis. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements of the decoder.
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Description

[0001] This application claims the benefit of US Provisional Application Serial No. 61 / 012,703, filed December 10, 2007, which is hereby incorporated by reference in its entirety. technical field

[0002] This disclosure relates to digital video coding, and more particularly to techniques for video frame interpolation or extrapolation. Background technique

[0003] Many video coding techniques have been developed for coding digital video sequences. For example, the Moving Pictures Experts Group (MPEG) has developed several technologies including MPEG-1, MPEG-2, and MPEG-4. Other examples include the International Telecommunication Union (ITU)-T H.263 standard and the ITU-T H.264 standard and their corresponding standards ISO / IEC MPEG-4 Part 10, Advanced Video Coding (AVC). These video coding standards support efficient transmission of video sequences by encoding data in a compressed manner. Compression reduces the total amount of data that needs to be transferred. [0004...

Claims

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