Region-based encoding techniques have been long investigated for the compression of still images and video sequences and have recently gained much popularity, as testified by the object-based nature of the MPEG-4 video coding standard. This work aims at analyzing costs and advantages of implementing such an approach by shape-adaptive wavelet transform and shape-adaptive SPIHT. The analysis of several performance measures in a number of experiments confirm the potential of wavelet-based region-based approach, and provide insight about what performance gains and losses can be expected in various operative conditions.
Costs and advantages of shape-adaptive wavelet transform for region-based image coding
IEEE International Conference on Image Processing 2005 ; 3 ; III-197
01.01.2005
186945 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Costs and Advantages of Shape-Adaptive Wavelet Transform for Region-Based Image Coding
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