On the methods and applications of arbitrarily downsizing video transcoding

被引：5

作者：

Tan, YP ^{[1
]}

Sun, HW ^{[1
]}

Liang, YQ ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 2263, Singapore

来源：

IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOL I AND II, PROCEEDINGS | 2002年

关键词：

D O I：

10.1109/ICME.2002.1035855

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Video transcoding is a common technique for adapting the bitrate or spatial/temporal resolution of a compressed video to suit different transmission bandwidths or receiving devices. To reduce the computational complexity, many fast methods have been proposed to estimate the motion vectors required for downsizing a pre-coded video by an integer factor. In this paper, we develop and compare several fast video transcoding methods for downsizing a pre-coded video by an arbitrary factor. Methods which out-perform others under different conditions are identified and discussed. To fully exploit the advantages of arbitrarily downsizing video transcoding, we also design a scheme to determine the reduced frame size that can sustain the best possible video quality for a given target bitrate. Experimental results are presented to show the performance of the proposed video transcoding methods.

引用

页码：609 / 612

页数：4

共 5 条

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[2] Heterogeneous Video Transcoding to Lower Spatio-Temporal Resolutions and Different Encoding Formats [J].

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IEEE TRANSACTIONS ON MULTIMEDIA, 2000, 2 (02) :101-110

[3] Adaptive motion-vector resampling for compressed video downscaling [J].

Shen, B ;

Sethi, IK ;

Vasudev, B .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 1999, 9 (06) :929-936

[4]

SHEN G, 2001, IEEE INT S CIRC SYST, P25

[5]

Wong JWC, 1998, 1998 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING - PROCEEDINGS, VOL 2, P461, DOI 10.1109/ICIP.1998.723424

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