Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Adaptive Cosine transform Image Coding

적응 코사인 변환 영상 부호화

  • Chee, Seok-Sang (Chonbuk National University) ;
  • Lee, Hoon (Chonbuk National University) ;
  • Park, Jun-Sung (Chonbuk National University) ;
  • Hwang, Jae-Jung (Kunsan National University) ;
  • Chang, Si-Chung (Chonbuk National University) ;
  • Lee, Moon-Ho (Chonbuk National University) ;
  • Yun, Jae-Woo (ETRI)
  • 지석상 (전북대학교 전자공학과) ;
  • 이훈 (전북대학교 전자공학과) ;
  • 박준성 (전북대학교 전자공학과) ;
  • 황재정 (군산대학교 전파공학과) ;
  • 장시중 (전북대학교 정보통신과) ;
  • 이문호 (전북대학교 정보통신과) ;
  • 윤재우 (한국전자통신연구원)
  • Published : 1998.10.01
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Abstract

An adaptive block DCT coding scheme is implemented with the same average distortion designated for each block. In this paper, a new implementation of the Discrete Cosine Tranform(DCT) for image is described. Practical system application is attained by maintaining a balance between complexity of implementation and performance. ADCT sub-blocks are sorted into mean according to level of image activity, measured by mean within each sub-block. Excellent performance is demonstrated in terms of PSNR of original and reconstructed images.

Keywords