Low-complexity and high quality frame-skipping transcoder

Kai Tat Fung; Yui Lam Chan; Wan Chi Siu

Low-complexity and high quality frame-skipping transcoder

Kai Tat Fung, Yui Lam Chan, Wan Chi Siu

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

9 Citations (Scopus)

Abstract

Transcoding is a process of converting a previously compressed video bitstream into a lower bit-rate bitstream. When some incoming frames are dropped for the frame-rate conversion in transcoding, the newly quantized DCT coefficients of prediction error need to be re-computed. In this paper, we propose a new architecture for low-complexity frame-rate reduction. The proposed algorithm is mainly performed in the discrete cosine transform (DCT) domain to achieve low complexity as well as to reduce the re-encoding error. Experimental results show that, as compared to the conventional transcoder, the new frame-skipping transcoder is more robust, produces smaller requantization errors, and has simple computational complexity.

Original language	English
Title of host publication	ISCAS 2001 - 2001 IEEE International Symposium on Circuits and Systems, Conference Proceedings
Publisher	IEEE Computer Society
Pages	29-32
Number of pages	4
Volume	5
ISBN (Print)	0780366859, 9780780366855
Publication status	Published - 1 Jan 2001
Event	2001 IEEE International Symposium on Circuits and Systems, ISCAS 2001 - Sydney, NSW, Australia Duration: 6 May 2001 → 9 May 2001

Conference

Conference	2001 IEEE International Symposium on Circuits and Systems, ISCAS 2001
Country/Territory	Australia
City	Sydney, NSW
Period	6/05/01 → 9/05/01

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Cite this

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title = "Low-complexity and high quality frame-skipping transcoder",

abstract = "Transcoding is a process of converting a previously compressed video bitstream into a lower bit-rate bitstream. When some incoming frames are dropped for the frame-rate conversion in transcoding, the newly quantized DCT coefficients of prediction error need to be re-computed. In this paper, we propose a new architecture for low-complexity frame-rate reduction. The proposed algorithm is mainly performed in the discrete cosine transform (DCT) domain to achieve low complexity as well as to reduce the re-encoding error. Experimental results show that, as compared to the conventional transcoder, the new frame-skipping transcoder is more robust, produces smaller requantization errors, and has simple computational complexity.",

author = "Fung, {Kai Tat} and Chan, {Yui Lam} and Siu, {Wan Chi}",

year = "2001",

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note = "2001 IEEE International Symposium on Circuits and Systems, ISCAS 2001 ; Conference date: 06-05-2001 Through 09-05-2001",

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Low-complexity and high quality frame-skipping transcoder. / Fung, Kai Tat; Chan, Yui Lam; Siu, Wan Chi.
ISCAS 2001 - 2001 IEEE International Symposium on Circuits and Systems, Conference Proceedings. Vol. 5 IEEE Computer Society, 2001. p. 29-32 921976.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Fung, Kai Tat

AU - Chan, Yui Lam

AU - Siu, Wan Chi

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N2 - Transcoding is a process of converting a previously compressed video bitstream into a lower bit-rate bitstream. When some incoming frames are dropped for the frame-rate conversion in transcoding, the newly quantized DCT coefficients of prediction error need to be re-computed. In this paper, we propose a new architecture for low-complexity frame-rate reduction. The proposed algorithm is mainly performed in the discrete cosine transform (DCT) domain to achieve low complexity as well as to reduce the re-encoding error. Experimental results show that, as compared to the conventional transcoder, the new frame-skipping transcoder is more robust, produces smaller requantization errors, and has simple computational complexity.

AB - Transcoding is a process of converting a previously compressed video bitstream into a lower bit-rate bitstream. When some incoming frames are dropped for the frame-rate conversion in transcoding, the newly quantized DCT coefficients of prediction error need to be re-computed. In this paper, we propose a new architecture for low-complexity frame-rate reduction. The proposed algorithm is mainly performed in the discrete cosine transform (DCT) domain to achieve low complexity as well as to reduce the re-encoding error. Experimental results show that, as compared to the conventional transcoder, the new frame-skipping transcoder is more robust, produces smaller requantization errors, and has simple computational complexity.

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M3 - Conference article published in proceeding or book

SN - 0780366859

SN - 9780780366855

VL - 5

SP - 29

EP - 32

BT - ISCAS 2001 - 2001 IEEE International Symposium on Circuits and Systems, Conference Proceedings

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T2 - 2001 IEEE International Symposium on Circuits and Systems, ISCAS 2001

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ER -

Low-complexity and high quality frame-skipping transcoder

Abstract

Conference

ASJC Scopus subject areas

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