Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder

Sang-Min KWAK; Jae-Gon KIM; Jong-Ki HAN

doi:10.1093/ietisy/e90-d.8.1316

Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder

Sang-Min KWAK, Jae-Gon KIM, Jong-Ki HAN

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When the bit rate of a compressed video sequence is reduced by a frequency domain transcoder system, the rate control scheme plays a very important role in maintaining consistent video quality. In this paper, we propose an efficient rate control scheme based on the complexity of MB (Macro Block) while conventional transcoding schemes use that of a picture. Since the frequency domain transcoder has to calculate the spatial activity of MB to adjust the quantization step, a process of converting the DCT (Discrete Cosine Transform) data into spatial one is required. The proposed scheme calculates the spatial activity from DCT data without converting them to pixel domain.

Publication: IEICE TRANSACTIONS on Information Vol.E90-D No.8 pp.1316-1319

Publication Date: 2007/08/01

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Online ISSN: 1745-1361

DOI: 10.1093/ietisy/e90-d.8.1316

Type of Manuscript: LETTER

Category: Image Processing and Video Processing

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Sang-Min KWAK, Jae-Gon KIM, Jong-Ki HAN, "Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder" in IEICE TRANSACTIONS on Information, vol. E90-D, no. 8, pp. 1316-1319, August 2007, doi: 10.1093/ietisy/e90-d.8.1316.
Abstract: When the bit rate of a compressed video sequence is reduced by a frequency domain transcoder system, the rate control scheme plays a very important role in maintaining consistent video quality. In this paper, we propose an efficient rate control scheme based on the complexity of MB (Macro Block) while conventional transcoding schemes use that of a picture. Since the frequency domain transcoder has to calculate the spatial activity of MB to adjust the quantization step, a process of converting the DCT (Discrete Cosine Transform) data into spatial one is required. The proposed scheme calculates the spatial activity from DCT data without converting them to pixel domain.
URL: https://globals.ieice.org/en_transactions/information/10.1093/ietisy/e90-d.8.1316/_p

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@ARTICLE{e90-d_8_1316,
author={Sang-Min KWAK, Jae-Gon KIM, Jong-Ki HAN, },
journal={IEICE TRANSACTIONS on Information},
title={Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder},
year={2007},
volume={E90-D},
number={8},
pages={1316-1319},
abstract={When the bit rate of a compressed video sequence is reduced by a frequency domain transcoder system, the rate control scheme plays a very important role in maintaining consistent video quality. In this paper, we propose an efficient rate control scheme based on the complexity of MB (Macro Block) while conventional transcoding schemes use that of a picture. Since the frequency domain transcoder has to calculate the spatial activity of MB to adjust the quantization step, a process of converting the DCT (Discrete Cosine Transform) data into spatial one is required. The proposed scheme calculates the spatial activity from DCT data without converting them to pixel domain.},
keywords={},
doi={10.1093/ietisy/e90-d.8.1316},
ISSN={1745-1361},
month={August},}

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TY - JOUR
TI - Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder
T2 - IEICE TRANSACTIONS on Information
SP - 1316
EP - 1319
AU - Sang-Min KWAK
AU - Jae-Gon KIM
AU - Jong-Ki HAN
PY - 2007
DO - 10.1093/ietisy/e90-d.8.1316
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E90-D
IS - 8
JA - IEICE TRANSACTIONS on Information
Y1 - August 2007
AB - When the bit rate of a compressed video sequence is reduced by a frequency domain transcoder system, the rate control scheme plays a very important role in maintaining consistent video quality. In this paper, we propose an efficient rate control scheme based on the complexity of MB (Macro Block) while conventional transcoding schemes use that of a picture. Since the frequency domain transcoder has to calculate the spatial activity of MB to adjust the quantization step, a process of converting the DCT (Discrete Cosine Transform) data into spatial one is required. The proposed scheme calculates the spatial activity from DCT data without converting them to pixel domain.
ER -