Variable resolution image compression based on a model of visual attention

Longsheng Wei; Nong Sang; Yuehuan Wang

doi:10.1117/12.831307

30 October 2009 Variable resolution image compression based on a model of visual attention

Longsheng Wei, Nong Sang, Yuehuan Wang

Proceedings Volume 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis; 74950P (2009) https://doi.org/10.1117/12.831307
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China

Abstract

Image compression is one of important processing techniques in visual salient object detecting. This paper proposes a model of image compression including visual attention and encoding of image. For a given image, salient regions are detected by visual attention; salient sizes are acquired by calculating feature difference between known location and periphery regions. In order to achieving variable resolution image compression, various compression ratios are adopted according to the saliency order from high to low. Original resolution is retained in the first salient region; the lowest resolution is applied in the inapparent salient regions and the middle resolution is decided by the saliency order from high to low. By this method, we achieve variable resolution image compression by the model of visual attention. Experimental results indicate that the model of image compression not only can achieve high compression ratio in total image but also can keep high resolution in salient regions and the quality of compressed image decreases as compression ratio increases. This method presents a new model for image compression.

Citation Download Citation

Longsheng Wei, Nong Sang, and Yuehuan Wang "Variable resolution image compression based on a model of visual attention", Proc. SPIE 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis, 74950P (30 October 2009); https://doi.org/10.1117/12.831307

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