Visual Detail Augmented Mapping for Small Aerial Target Detection

Remote Sensing

Dongdong Li¹  Tao Yang¹  Junqi Shu²  Congcong Li²  Jing Li²  Yanran Dai²  Zhaoyang Lu² 

[1] SAIIP School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China;School of Telecommunications Engineering, Xidian University, Xi’an 710071, China;

关键词: small target detection;    aerial video;    visual detail augmented mapping;   

DOI  :  10.3390/rs11010014

来源: DOAJ

【 摘 要 】

Moving target detection plays a primary and pivotal role in avionics visual analysis, which aims to completely and accurately detect moving objects from complex backgrounds. However, due to the relatively small sizes of targets in aerial video, many deep networks that achieve success in normal size object detection are usually accompanied by a high rate of false alarms and missed detections. To address this problem, we propose a novel visual detail augmented mapping approach for small aerial target detection. Concretely, we first present a multi-cue foreground segmentation algorithm including motion and grayscale information to extract potential regions. Then, based on the visual detail augmented mapping approach, the regions that might contain moving targets are magnified to multi-resolution to obtain detailed target information and rearranged into new foreground space for visual enhancement. Thus, original small targets are mapped to a more efficient foreground augmented map which is favorable for accurate detection. Finally, driven by the success of deep detection network, small moving targets can be well detected from aerial video. Experiments extensively demonstrate that the proposed method achieves success in small aerial target detection without changing the structure of the deep network. In addition, compared with the-state-of-art object detection algorithms, it performs favorably with high efficiency and robustness.

【 授权许可】

Unknown