RESEARCH OF IMAGE AUTOMATIC CLIPPING METHODS IN AIR-GROUND DATA LINK SYSTEM
In communications using air-ground data link, the data that comes from various airborne image sensors is getting huge while the bandwidth of the data link is relatively narrow.To improve image transmission efficiency in battle field condition, it is required that the images acquired by a (CCD) aerial camera using central projection were transmitted at high fidelity and speed over long distance. This paper proposed an airborne automatic data reduction scheme to solve the aforementioned problem. The key steps of this scheme are automatic image matching and clipping. The algorithm utilizes the strong logic relativities among adjacent aero-photographs and it is based on the model of 2-D affine transformation. When detecting no highlighted moving targets,the algorithm performs automatic clipping for overlapping part of two adjacent images by using of Fourier-Mellin transform. The experimental results of automatic clipping and mosaic showed that the proposed algorithm was computationally efficient and easy to practice. As a robust algorithm, which has potential practical application, it can also effectively reduce downstream waiting data.
Image registration Image transmission Data reduction Automatic clipping Affine transform Fourier-Mellin transform
LIAN JING WANG KE FENG JIAN
College of Communications Engineering, Jilin University, Changchun, 130022, China
国际会议
2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)
大连
英文
3822-3828
2006-08-13（万方平台首次上网日期，不代表论文的发表时间）