Edge-based motion compensation for frame rate up conversion

• Main Authors: Lu, Chun-Wen, 盧俊文
• Other Authors: Tsai, Wen-Jiin
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/03726440488193629249

碩士 === 國立交通大學 === 資訊學院資訊學程 === 102 === In this thesis, a method of frame-rate up-conversion was proposed. We use the Edge Detection Algorithm and Median Vector Filter to get improved motion vector. With improved motion vectors , more accurate objects motion trajectories between two adjacent frames could be obtained. By using the proposed interpolation algorithm , the frame between its two adjacent frames could be well interpolated along the motion trajectories. The method we proposed is called Edge-based Motion-Compensated Frame Rate Up-Conversion (EBMC-FRUC) , which includes two key parts : motion estimation(MV) and motion-compensated frame interpolation(MCFI) . In motion estimation , we proposed to use Sobel algorithm which is a well known edge detection algorithm to extract the object’s edge in frame , and then use the extracted edges and block matching algorithm to obtain improved the motion vectors . The obtained motion vectors are further refined by a median filter before they are adopted in the frame interpolation. Experimental results show that the proposed algorithm effectively enhanced the correctness of motion vectors and interpolated the frames with good quality .