Interframe Image Coding Using Quadtree for Motion Estimation
نویسندگان
چکیده
This paper presents a new structure for a low bit rate video coder. The new structure uses quadtree decomposition for motion estimation and compensation. This significantly reduces the computational complexity of the coding operation. The new coding scheme yields high subjective quality at bit rates compatible with RDSI channels. Simulations results demonstrate the effectiveness of the new coder.
منابع مشابه
Selection Vector Dwt + Vq Obmc Predictor Frame Buffer Quadtree Coding Ivq Iwt + Bitstream Output Input Frame Vectors Motion Code Quadtree Labels
A novel adaptive VQ based subband coding scheme for very low bit rate coding of video sequences is presented. Overlapped block motion estimation/compensation is employed to exploit interframe redundancy. A 2D wavelet transform (WT) is applied to the resulting displaced frame diierence (DFD) signal. The WT coee-cients are encoded using an adaptive vector quantization scheme in combination with a...
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