Integral image-based quick ACCA-CFAR SAR (Automatic Censored Cell Averaging-Constant False Alarm Rate Synthetic Aperture Radar) image target detection method
A technology of integral image and target detection, which is applied in the field of SAR image interpretation, can solve the problems that the algorithm value is relatively sensitive, cannot meet the requirements of large scene data processing and real-time ATR system application, and does not consider the statistical characteristics of data, etc.
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[0089] The present invention will be further described below in conjunction with the accompanying drawings and specific examples.
[0090] The present invention proposes a kind of fast ACCA-CFAR SAR image target detection method based on integral image, specifically comprises the following steps:
[0091] (1) Based on G 0 A Distributed Adaptive Global Threshold CFAR Pre-Segmentation Algorithm
[0092] Considering G on the one hand 0 On the other hand, since the proportion of target pixels in SAR images is generally small, if a large amount of data is used for statistical parameter estimation, the influence of target pixels will be small, and the ACCA-CFAR operator itself has a great influence on the accuracy of the pre-segmentation algorithm. The requirements are not very high. Therefore, a G-based 0 Distributed adaptive global thresholding CFAR pre-segmentation algorithm for generating target index matrices. The flow chart of the pre-segmentation algorithm is as follows ...
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