Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder(Image Processing and Video Processing)

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概要

• 論文の詳細を見る

• 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.

• 社団法人電子情報通信学会の論文
• 2007-08-01

著者

• Han Jong‐ki

  Sejong Univ. Seoul Kor

• Han Jong-ki

  Sejong University

• Kwak Sang-min

  Sejong University

• KIM Jae-Gon

  Hanbat National University

関連論文

• Efficient Motion Estimation Using a Modified Early Termination Algorithm in H.264(Image Processing and Video Processing)
• Efficient Rate Control Scheme Using Complexity of Macro Block for MPEG-2 Transcoder(Image Processing and Video Processing)
• Adaptive Scan Pattern for Quantized Coefficients in Intra Coding of H.264

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