Performance Comparision of the ADCT-VQ and JPEG for X-ray Image Compression

X-ray 의료영상 압축을 위한 ADCT-VQ와 JPEG의 성능 비교

  • 김근섭 (한국과학기술연구원 응용전자연구실) ;
  • 임호근 (한국과학기술연구원 응용전자연구실) ;
  • 권용무 (한국과학기술연구원 응용전자연구실) ;
  • 이재천 (한국과학기술연구원 응용전자연구실) ;
  • 김형곤 (한국과학기술연구원 응용전자연구실)
  • Published : 1992.11.13

Abstract

We examine the compression performance of two irreversible (lossy) compression techniques, ADCT-VQ (Adaptive Discrete Cosine Trandform - Vector Quantization) and JPEG (Joint Photographic Experts group) which are basis of medical image information systems. Under the same compression ratio, MSE(Mean Square Error) is 0.578 lower in JPEG than in ADCT-VQ while SNR(Signal to Noise Ratio) is 1.236 dB higher in JPEG than in ADCT-VQ.

Keywords