Segmentation-based coding of motion fields for video compression
نویسندگان
چکیده
In this paper, a motion field segmentation scheme for video compression is presented. A split-and-merge segmentation technique and linear regression are used to segment the field and an affine motion model is used to describe the movements of the regions. In the regression, a linearization of the displaced frame difference is minimized directly. The results are compared with block-based motion estimation and MPEG style coding.
منابع مشابه
Video Compression using Segmentation-Based Coding of Motion Fields
In this paper, a motion field scheme for video compression is presented. A split-andmerge segmentation technique and weighted linear regression are used to segment the field and an affine motion model is used to describe the movements of the regions. In the regression, individual motion vectors are weighted according to the relative sensitivity of the reconstruction to inaccurate motion at that...
متن کاملTraffic Scene Analysis using Hierarchical Sparse Topical Coding
Analyzing motion patterns in traffic videos can be exploited directly to generate high-level descriptions of the video contents. Such descriptions may further be employed in different traffic applications such as traffic phase detection and abnormal event detection. One of the most recent and successful unsupervised methods for complex traffic scene analysis is based on topic models. In this pa...
متن کاملEstimation of depth fields suitable for video compression based on 3-D structure and motion of objects
Intensity prediction along motion trajectories removes temporal redundancy considerably in video compression algorithms. In three-dimensional (3-D) object-based video coding, both 3-D motion and depth values are required for temporal prediction. The required 3-D motion parameters for each object are found by the correspondence-based E-matrix method. The estimation of the correspondences-two-dim...
متن کاملFrame-Rate Up-Conversion Using Transmitted Motion and Segmentation Fields for Very Low Bit-Rate Video Coding
We present a motion-compensated interpolation scheme that allows recovery of skipped frames at the receiver. The interpolation is performed based on an object-based interpretation of the video. The main advantage of the scheme is that the decoded motion and segmentation information is used without reene-ment. This is attributable to the fact that the object-based representation is true to the \...
متن کاملA New Video Coding Approach Based on Object- Extraction
This paper describes efficient object-based video coding schemes suitable for content-based multimedia streaming systems. Anew two video coding approaches are presented to study the effect of the object based motion estimation in video coding and the effect of the object based video coding on the compression quality, respectively. The first approach is based on a new motion estimation technique...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1997