A novel method of drift-scanning stars suppression based on the standardized linear filter

作者：Lin Jianlin^*; Ping Xijian; Hou Guanghua; Ma Debao

来源：International Conference on Optical Instruments and Technology (OIT) - Optoelectronic Imaging and Processing Technology, 2011-11-06 To 2011-11-09.

DOI：10.1117/12.903780

• photo-optical image
• target detection
• drift-scanning
• standardized linear filter
• gradient linear filter
• stars suppression

A large number of stars in the drift-scanning star image have interfered with the detection of small target, this paper proposes an adaptive linear filtering method to achieve the small target detection by suppressing the stars. Firstly, the characteristics of stars, interest target and noise three different representative objects in the star image are analyzed, then the standardized linear filter is constructed to suppress the stars. For the purpose of decreasing the influence region of stars filtering uniformly, a gradient linear filter is constructed to modify the stars suppression method with the standardized linear filter. Then the filter parameter selection method is given. Finally, a multi-frame target track experiment on the real drift-scanning data is made to testify the validity of the proposed method. With the processing results of different methods, it has been showed that the proposed method for suppressing stars with different length and lean angle has a better effect, higher robustness and easier application than the others.

• 出版日期2011
• 单位中国科学技术信息研究所