IMAGE DECODING DEVICE REDUCING THE COMPLEXITY OF COMPOSITION OF DECODING PARTY BY PERFORMING ENCODING AND DECODING ONLY A LARGE DISTORTION PART OF SIDE INFORMATION USING CHANNEL CODE BY GENERATING SIDE INFORMATION THROUGH SYMMETRICAL MOTION PREDICTION

摘要

PURPOSE: An encoder and a decoder for distributing an image through symmetrical motion prediction and a channel division and a method thereof are provided to minimize distortion of side information and remove residual part existing in a channel code decoding process, thereby reducing calculation amount.;CONSTITUTION: A key frame encoder(110) encodes the key frame of a image. As a response of the encoded image, a buffer receives a first channel image information of large distortion larger than preset value. A first channel image is divided from a side image information applying interpolation to the key frame. A quantization unit(130) quantizes a Wyner-Ziv frame through the first channel image information. A Wyner-Ziv frame encoder(140) encodes the quantized Wyner-Ziv frame.;COPYRIGHT KIPO 2011