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Wavelet compression activity: goals
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Compression of still images:
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improving quality for fixed bitrate
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decreasing encoding time (currently encoding still image takes 2 seconds on SGI Challenge; similar problem exists for DCT like H.263 based systems - currently no real-time encoding exists in software)
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parallelizing: decomposition, quantization and arithmetic coding (important in view of emergence of multiprocessor PentiumPro systems)
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Compression of video:
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we verified that motion estimation in wavelet space does not work
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plan: hybrid video method
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Web and other functionalities:
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progressive still image plug-in (implemented)
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in progress - zoom, local window, chroma key
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plans: transparency, pre- and post-processing, access key file protection, error recovery
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