Prof. Pengge Ma Profile

Prof. Pengge Ma

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Proceedings Article | 27 January 2021 Paper

Infrared small target detection in image sequences based on temporal low-rank and sparse decomposition

Yan Nie, Wei Li, Mingjing Zhao, Qiong Ran, Pengge Ma

Proceedings Volume 11720, 117200A (2021) https://doi.org/10.1117/12.2589426

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In infrared small target detection tasks, targets usually occupy very few pixels and present as local bright spots, lacking prior knowledge such as shape and speed. In response to the above problems, a temporal low-rank and sparse decomposition and spatio-temporal continuity detection algorithm, names as TLRSD-STC, is proposed to detect small targets and eliminate false alarm targets. The proposed algorithm firstly expands the sequence images in time domain. The preliminary separation of small targets and background is achieved through low-rank and sparse decomposition, and target prediction maps can be obtained. Subsequently, targets and noise are further separated by an improved pipeline filter to obtain the final detection image. The proposed algorithm is validated on three sequence images containing complex scenes. Experimental results demonstrate that the algorithm has a higher detection rate and lower false alarm rate than other algorithms in complex scenes.

Proceedings Article | 15 November 2017 Paper

A new airborne laser rangefinder dynamic target simulator for non-stationary environment

Pengge Ma, Dongdong Pang, Yang Yi

Proceedings Volume 10605, 106052C (2017) https://doi.org/10.1117/12.2292947

KEYWORDS: Airborne laser technology, Optical simulations, Laser range finders

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For the non-stationary environment simulation in laser range finder product testing, a new dynamic target simulation system is studied. First of all, the three-pulsed laser ranging principle, laser target signal composition and mathematical representation are introduced. Then, the actual nonstationary working environment of laser range finder is analyzed, and points out that the real sunshine background light clutter and target shielding effect in laser echo become the main influencing factors. After that, the dynamic laser target signal simulation method is given. Eventlly, the implementation of automatic test system based on arbitrary waveform generator is described. Practical application shows that the new echo signal automatic test system can simulate the real laser ranging environment of laser range finder, and is suitable for performance test of products.

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