A Low-Complexity and High-Quality Image Compression Method for Digital Cameras

ETRI Journal

关键词: JPEG-LS;    Bayer format image;    Near-lossless image compression;   

Others  :  1185459
DOI  :  10.4218/etrij.06.0205.0071

【 摘 要 】

This letter proposes a new near-lossless image compression method with only one line buffer cost for a digital camera with Bayer format image. For such format data, it can provide a low average compression rate (4.24bits/pixel) with high-image quality (larger than 46.37dB where the error of every pixel is less than two). The experimental results show that the near-lossless compression method has better performance than JPEG-LS (lossless) with δ = 2 for a Bayer format image.

   

【 参考文献 】

• [1]Butner, S.E and Ghodoussi, M, "Transforming a Surgical Robot for Human Telesurgery," IEEE Trans. on Robotics and Automation, vol. 19, iss. 5, Oct. 2003, pp. 818 ? 824.
• [2]ddan G, Meron G, Glukhovsky A, Swain P, "Wireless Capsule Endoscopy," Nature, vol. 405, 25 May 2000.
• [3]Zhihua Wang, Xiang Xie, Chun Zhang, Baoyong Chi, Guolin Li, Li Zhang, and Domgmei Li, "IC Design for a Digital Wireless Endoscope Capsule System," Proc. Radio Science Conf., 2004 Asia-Pacific, Aug. 2004, pp. K42 - K43.
• [4]Tsai, Y.T.,"Color Image Compression for Single-Chip Cameras," IEEE Trans. Electron Devices, vol. 38, iss. 5, May 1991, pp. 1226-1232.
• [5]T. Toi and M. Ohita, "A Subband Coding Technique for Image Compression in Single CCD Cameras with Bayer Color Filter Arrays," IEEE Trans. Consumer Electronics, vol. 45, no. 1, Feb. 1999, pp. 176-180,
• [6]S.Y. Lee and A. Ortega, "A Novel Approach of Image Compression in Digital Cameras with a Bayer Color Filter Array," Proc. IEEE Int’l. Conf. Image, vol. 3, Oct. 2001, pp. 482-485.
• [7]Chin Chye Koh, Jayanta Mukherjee, and Sanjit K. Mitra, "New Efficient Methods of Image Compression in Digital Cameras with Color Filter Array," IEEE Trans. Consumer Electronics, vol. 49, no. 4, Nov. 2003, pp. 1448-1456.
• [8]B.E. Bayer, "Color Imaging Array," U.S. Patent 3,971,065, 1976.
• [9]S. Battiato, A. Buemi, L. Della Torre, and A. Vitali, "A Fast Vector Quantization Engine for CFA Data Compression," Proc. of IEEE-EURASIP, NSIP 2003, Grado, Italy, June 2003.
• [10]Xiang Xie, GuoLin Li, ZhiHua Wang, Chun Zhang, DongMei Li, and XiaoWen Li, "A Novel Method of Lossy Image Compression for Digital Image Sensors with Bayer Color Filter Arrays," IEEE Int’l Symp. Circuits and Systems Proc. (ISCAS’05), Japan, 2005.