Reduction of blocking artifacts for low bit-rate video coding using regularized dequantization

S. M H Song; G. Lee; Sanghoon Sull; Sung-Jea Ko

Reduction of blocking artifacts for low bit-rate video coding using regularized dequantization

S. M H Song, G. Lee, Sanghoon Sull, Sung-Jea Ko

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Most discrete cosine transform (DCT) based video coding suffer from blocking artifacts where boundaries of 8×8 DCT blocks become visible on decoded images. The blocking artifacts become more prominent as the bit rate is lowered. In this paper, we present a new dequantization technique for discrete cosine transform (DCT) based encoding to sharply reduce the blocking artifacts. Our proposed dequantization scheme, through regularization, sharply reduces blocking artifacts in decoded images. The performance the proposed algorithm is compared to that of the currently specified H.263+ Annex J deblocking filter. The comparison will show visual improvements as well as numerical improvements in terms of the peak-signal-to-noise ratio (PSNR) and the blockiness measure (BM) to be defined.

Original language	English
Title of host publication	IEEE International Conference on Multi-Media and Expo
Pages	63-66
Number of pages	4
Edition	I/MONDAY
Publication status	Published - 2000 Dec 1
Event	2000 IEEE Internatinal Conference on Multimedia and Expo (ICME 2000) - New York, NY, United States Duration: 2000 Jul 30 → 2000 Aug 2

Other

Other	2000 IEEE Internatinal Conference on Multimedia and Expo (ICME 2000)
Country/Territory	United States
City	New York, NY
Period	00/7/30 → 00/8/2

ASJC Scopus subject areas

Engineering(all)

Cite this

@inproceedings{295313b6e33241f28e2ca8af7be075cb,

title = "Reduction of blocking artifacts for low bit-rate video coding using regularized dequantization",

abstract = "Most discrete cosine transform (DCT) based video coding suffer from blocking artifacts where boundaries of 8×8 DCT blocks become visible on decoded images. The blocking artifacts become more prominent as the bit rate is lowered. In this paper, we present a new dequantization technique for discrete cosine transform (DCT) based encoding to sharply reduce the blocking artifacts. Our proposed dequantization scheme, through regularization, sharply reduces blocking artifacts in decoded images. The performance the proposed algorithm is compared to that of the currently specified H.263+ Annex J deblocking filter. The comparison will show visual improvements as well as numerical improvements in terms of the peak-signal-to-noise ratio (PSNR) and the blockiness measure (BM) to be defined.",

author = "Song, {S. M H} and G. Lee and Sanghoon Sull and Sung-Jea Ko",

year = "2000",

month = dec,

day = "1",

language = "English",

pages = "63--66",

booktitle = "IEEE International Conference on Multi-Media and Expo",

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note = "2000 IEEE Internatinal Conference on Multimedia and Expo (ICME 2000) ; Conference date: 30-07-2000 Through 02-08-2000",

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T1 - Reduction of blocking artifacts for low bit-rate video coding using regularized dequantization

AU - Song, S. M H

AU - Lee, G.

AU - Sull, Sanghoon

AU - Ko, Sung-Jea

PY - 2000/12/1

Y1 - 2000/12/1

N2 - Most discrete cosine transform (DCT) based video coding suffer from blocking artifacts where boundaries of 8×8 DCT blocks become visible on decoded images. The blocking artifacts become more prominent as the bit rate is lowered. In this paper, we present a new dequantization technique for discrete cosine transform (DCT) based encoding to sharply reduce the blocking artifacts. Our proposed dequantization scheme, through regularization, sharply reduces blocking artifacts in decoded images. The performance the proposed algorithm is compared to that of the currently specified H.263+ Annex J deblocking filter. The comparison will show visual improvements as well as numerical improvements in terms of the peak-signal-to-noise ratio (PSNR) and the blockiness measure (BM) to be defined.

AB - Most discrete cosine transform (DCT) based video coding suffer from blocking artifacts where boundaries of 8×8 DCT blocks become visible on decoded images. The blocking artifacts become more prominent as the bit rate is lowered. In this paper, we present a new dequantization technique for discrete cosine transform (DCT) based encoding to sharply reduce the blocking artifacts. Our proposed dequantization scheme, through regularization, sharply reduces blocking artifacts in decoded images. The performance the proposed algorithm is compared to that of the currently specified H.263+ Annex J deblocking filter. The comparison will show visual improvements as well as numerical improvements in terms of the peak-signal-to-noise ratio (PSNR) and the blockiness measure (BM) to be defined.

UR - http://www.scopus.com/inward/record.url?scp=0034508856&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034508856&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0034508856

SP - 63

EP - 66

BT - IEEE International Conference on Multi-Media and Expo

T2 - 2000 IEEE Internatinal Conference on Multimedia and Expo (ICME 2000)

Y2 - 30 July 2000 through 2 August 2000

ER -

Reduction of blocking artifacts for low bit-rate video coding using regularized dequantization

Abstract

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