access icon free Background suppression of small target image based on fast local reverse entropy operator

© The Institution of Engineering and Technology
Received 17/10/2012, Accepted 24/05/2013, Revised 25/03/2013, Published

Background suppression is vitally important for the small target detection, which aims to enhance targets and improve the signal-to-noise ratio of small target images. Consequently, the study proposes a background suppression approach based on the fast local reverse entropy operator, which is designed according to the fact that the appearance of a small target could result in the great change of the value of local reverse entropy in the local region. The operator is adopted to suppress complex backgrounds of small target images in order to enhance small targets, and then bring about high probabilities of detection and low probabilities of false alarm in the small target detection. Both quantitative and qualitative analyses contribute to confirm the validity and efficiency of the proposed approach.

Inspec keywords: entropy; object detection; signal processing

Other keywords: target image; complex backgrounds; quantitative analysis; false alarm; background suppression; target detection; signal-to-noise ratio; local reverse entropy operator; qualitative analysis

Subjects: Computer vision and image processing techniques; Optical, image and video signal processing

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