Abstract
This paper presents a region adaptive encoding scheme with JPEG decoder compatibility. This scheme adequately changes the Lagrange multiplier in R-D cost function for each block according to the segmentation information so that the important region for diagnosis can be coded with less distortion. The results show that the proposed scheme not only outperforms original JPEG but also outperforms R-D optimal thresholding JPEG in important regions with respect to image fidelity.
Original language | English |
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Pages (from-to) | 595-599 |
Number of pages | 5 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3335 |
DOIs | |
State | Published - 1998 |
Event | Medical Imaging 1998: Image Display - San Diego, CA, United States Duration: 22 Feb 1998 → 24 Feb 1998 |
Keywords
- JPEG
- Optimal thresholding JPEG
- Rate-distortion
- Region adaptive JPEG
- Region adaptive encoding