Rate distortion theory for image and video coding
نویسنده
چکیده
We give the rate distortion function for three image sequence coders: intra-frame, interframe and motion compensating inter-frame. The intensity function distribution is assumed to be Gaussian, and we suppose spatio-temporal separability and an isotropic model for the spatial part of the intensity function. We give quantitative results justi ng the use of the above three coding modes in an image sequence coder. Moreover the obtained results show that the hybrid coding (motion compensating prediction + spatial compression) is more interesting as motion analysis becomes more e ective.
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