Efficient inter/intra mode decision for H.264/AVC inter frame transcoding

In this paper, we propose an efficient inter/intra mode decision for H.264/AVC inter frame transcoding. A zero-block decision scheme is first employed to select some candidate inter and intra modes for prediction. Soon afterward, we incorporate a fast multi-reference frame motion estimation with ada...

Full description

Saved in:
Bibliographic Details
Main Authors: Chien-Da Wu, Yinyi Lin
Format: Conference Proceeding
Language:English
Subjects:
Automatic voltage control
Computational complexity
Decoding
Degradation
H.264/AVC
HDTV
inter frame transcoding
Motion estimation
rate distortion optimization (RDO)
Rate-distortion
rate-distortion cost function
Streaming media
Transcoding
Video sequences
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we propose an efficient inter/intra mode decision for H.264/AVC inter frame transcoding. A zero-block decision scheme is first employed to select some candidate inter and intra modes for prediction. Soon afterward, we incorporate a fast multi-reference frame motion estimation with adaptive search window into inter mode decision. For intra mode decision we suggest a mode refinement scheme to eliminate improbable modes for RDO calculations to a greater extent. The experimental results reveal that average 93% of computation time can be saved for the proposed H.264 inter frame transcoding algorithm, when compared with fully decoding/encoding procedure. The degradation in the rate-distortion performance is fairly small.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2009.5414226