Multimedia DRM scheme using modulated motion vector for handset;

Video Transcode Base on the Model of the Reuse of Incoming Motion Vector;

A motion vector field adaptive search algorithm

Conversion of frame types and motion vectors mapping in MPEG-2 to MPEG-4 real-time video transcoding;

The writer proposes a robust video watermarking scheme based on motion vectors.

Focusing on the problem of moving object detection and tracking on MPEG-4 compressed streams by a stationary camera,an algorithm for detecting the moving object using DC coefficients and motion vectors of the motion information in MPEG is presented.

In this paper,the compression of image which is moved slowly is realized with the run length of motion vector field,thereby that reduce memory space and make for image transmission.

Then the initial search point and 2 search strategies were adaptively chosen according to the motion vector field,and an threshold was also selected to detect stationary blocks.

A new adaptive motion search algorithm with elastic pattern based on motion vector field is presented in this paper.

A fast motion estimation algorithm based on the MV set is proposed after a detailed survey of current algorithms of the two parts of the motion estimation:the mode selection of the block segment and the directional search.

In the motion vector block-based algorithm,the characteristics of motion vector,the Human Visual System(HVS)and the clustering features of motion vector block are considered.