Title :
Fast digital image stabilizer based on Gray-coded bit-plane matching
Author :
Ko, Sung-Jea ; Lee, Sung-Hee ; Jeon, Seung-Won ; Kang, Eui-Sung
Author_Institution :
Dept. of Electron. Eng., Korea Univ., Seoul, South Korea
fDate :
8/1/1999 12:00:00 AM
Abstract :
A fast digital image stabilizer based on the Gray-coded bit-plane matching is proposed which is robust to irregular conditions such as moving objects and intentional panning. The proposed digital image stabilization (DIS) system performs motion estimation using the Gray-coded bit-plane of video sequences, greatly reducing the computational load. This motion estimation method can be realized using only binary Boolean functions which have significantly reduced computational complexity, while the accuracy of motion estimation is maintained. In order to further improve the computational efficiency, the Gray-coded bit-plane matching with the three-step search (3SS) is proposed. Experimental results indicate that the proposed digital image stabilizer is a computationally efficient alternative to existing DIS systems
Keywords :
Boolean functions; Gray codes; computational complexity; image matching; image sequences; motion estimation; search problems; video coding; binary Boolean functions; computational efficiency; computational load reduction; digital image stabilization system; experimental results; fast digital image stabilizer; gray-coded bit-plane matching; intentional panning; motion estimation method; moving objects; reduced computational complexity; three-step search; Boolean functions; Cameras; Digital images; Fluctuations; Gray-scale; Motion estimation; Pattern matching; Robustness; Video equipment; Video sequences;
Journal_Title :
Consumer Electronics, IEEE Transactions on
