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Proceedings Paper

Performance analysis of compression techniques for pathological microscopic images
Author(s): Junji Suzuki; Isao Furukawa; Akira Okumura; Tsukasa Ashihara
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Paper Abstract

Telepathology is aiming at pathological diagnoses based on microscopic images of cell samples through broadband networks. The number of pixels in pathological microscopic (PM) images is said to be approximately 4 to 6 million. In this paper, digital PM images are made without films using a super high definition (SHD) image prototype system, which has more than double the number of pixels and frame frequency than those of HDTV images. First, color distribution and a spatial spectrum are analyzed in order to estimate compression characteristics of the images. In addition, the lossless and lossy JPEG coding characteristics are investigated. In the lossless compression, the PM images have compression ratios which are very close to 1, while the general images have compression ratios around 2. The PM image compression ratios in the lossy JPEG coding, where the L*a*b* color difference is less than 2 to 3, are found to almost equal those of the lossless JPEG (Joint Photographic Coding Experts Group) using arithmetic coding. The PM image coding performance in the lossy JPEG coding is also found to be inferior to that of general images including still life images, portraits, and landscapes.

Paper Details

Date Published: 17 February 1995
PDF: 12 pages
Proc. SPIE 2451, Advanced Image and Video Communications and Storage Technologies, (17 February 1995); doi: 10.1117/12.201229
Show Author Affiliations
Junji Suzuki, NTT Optical Network Systems Labs. (Japan)
Isao Furukawa, NTT Optical Network Systems Labs. (Japan)
Akira Okumura, NTT Optical Network Systems Labs. (Japan)
Tsukasa Ashihara, Kyoto Prefectural Univ. of Medicine (Japan)


Published in SPIE Proceedings Vol. 2451:
Advanced Image and Video Communications and Storage Technologies
Naohisa Ohta; Heinz U. Lemke; Jean Claude Lehureau, Editor(s)

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