A wavelet based stereo image coding algorithm
A wavelet based stereo image coding algorithm
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DOI：
10.1109/icassp.1999.757511
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发表时间：
1999-03
期刊：
影响因子：
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通讯作者：
Qin Jiang;Joon-Jae Lee;M. Hayes
中科院分区：
文献类型：
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作者：
Qin Jiang;Joon-Jae Lee;M. Hayes
立体图像对编码是立体数据压缩中的一个重要问题。提出一种基于小波的立体图像对编码算法。小波变换用于将图像分解为近似图像和三个边缘图像。在小波域中，开发了一种视差估计技术来使用近似图像和边缘图像来估计视差场。为了提高视差补偿技术产生的小波图像估计的准确性，开发了一种新颖的基于小波的子空间投影技术（SPT）。在SPT中，块相关子空间是使用从视差补偿小波图像导出的块变化基向量来构造的。实验结果表明，该算法能够有效实现立体图像压缩。
Stereo image pair coding is an important issue in stereo data compression. A wavelet based stereo image pair coding algorithm is proposed in this paper. The wavelet transform is used to decompose the image into an approximation image and three edge images. In the wavelet domain, a disparity estimation technique is developed to estimate the disparity field using both approximation image and edge images. To improve the accuracy of estimation of wavelet images produced by the disparity compensation technique, a novel wavelet based subspace projection technique (SPT) is developed. In the SPT, the block dependent subspaces are constructed using block varying basis vectors that are derived from the disparity compensated wavelet images. Experimental results show that the proposed algorithm is efficient to achieve stereo image compression.