用于光学小波变换的图像压缩方法

姬艳丽; 田逢春; 刘国金; 徐鑫

光电工程, 2009, 36 (3): 74, 网络出版: 2009-10-09

用于光学小波变换的图像压缩方法

Method of Image Compression for Optical Wavelet Transform

论文大纲

姬艳丽 ^*田逢春刘国金徐鑫

作者单位

重庆大学通信工程学院，重庆 400030

光学信息处理光学小波变换图像压缩图像编码 optical information processing optical wavelet transform image data compression image encoding

摘要

小波图像压缩数据量大，实现需时较长。本文将光学小波变换技术应用于图像数据压缩，分析光学小波变换系统和光学小波变换系数特点，对相关量化编码方案进行仿真实验，提出适用于光学系统的压缩方案，并实现光学小波变换的有损压缩。通过分析光学系统对量化编码噪声的容许程度，提出光学系统的近无损压缩方法。实验结果表明，近无损压缩重建图像与经光学小波变换直接重建图像相比，PSNR 仅有0.1dB 的差异，视觉上没有明显差异。

Abstract

Since the wavelet transformation caused a great deal of data and occupies a long time, image data compression on optical system was realized. The characteristics of optical system and optical wavelet coefficients were analyzed in detail and simulation was done on several quantization encoding methods. Then, appropriate compression method was put forward and lossy compression was realized. In addition, by analyzing the endurance to quantity noise of optical system, an important conclusion was achieved that the ideas of nearly lossless compression was sparked. Experimental results show that, compared with the directly reconstructed image, the PSNR of nearly lossless reconstructed image is only 0.1 dB, and there is no significant difference in vision.

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姬艳丽, 田逢春, 刘国金, 徐鑫. 用于光学小波变换的图像压缩方法[J]. 光电工程, 2009, 36(3): 74. JI Yan-li, TIAN Feng-chun, LIU Guo-jin, XU Xin. Method of Image Compression for Optical Wavelet Transform[J]. Opto-Electronic Engineering, 2009, 36(3): 74.

用于光学小波变换的图像压缩方法

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