An improved adaptive preprocessing method for TDI CCD images

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2018,（1）
• 页码范围: 76-80
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11801-018-7175-1

摘要

In order to achieve high quality images with time-delayed integration (TDI） charge-coupled device (CCD) imaging system,an improved adaptive preprocessing method is proposed with functions of both denoising and edge enhancement.It is a weighted average filter integrating the average filter and the improved range filter.The weighted factors are deduced in terms of a cost function,which are adjustable to different images.To validate the proposed method,extensive tests are carried out on a developed TDI CCD imaging system.The experimental results confirm that this preprocessing method can fulfill the noise removal and edge sharpening simultaneously,which can play an important role in remote sensing field.