G-013 Incorporating Zoom Motion Estimation in Video Compression : A More General Approach for Motion Compensated Predictive Coding

概要

論文の詳細を見る
In order to remove temporal redundancy between successive image frames, most of the video coding standards (e.g. ITU-T H.261, ISO/IEC standard MPEG-2, the latest video coding standard H.264/AVC through the joint efforts of ITU/T and ISO/IEC or proposed HEVC) use block based motion estimation technique. But conventional block based motion estimation techniques have a major drawback that these are limited to detect only the parallel translation of objects' motion, i.e. horizontal and vertical motions. Although many attempts have been found in literature to resolve the existences of other geometric transformations such that zoom, rotation, tilting motion of objects, these are not accepted by industry for real-time video CODEC because of their computational complexities. However, in video sequences for example digital movie videos, zoom motion often occurs to get images on 2D image surface from 3D data. To address this issue, this paper demonstrates the feasibility of incorporating a newly proposed zoom motion estimation algorithm in the latest video coding standard AVC/H.264 for improving digital video compression. Executing implementation using H.264 standard, the experimental results will justify the claimed performance of the proposed zoom motion estimation technique.
2012-09-04