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Beijing, China

Xu P.,Beijing Institute of Technology | Li D.,Beijing Institute of Technology | Jin B.,No. 63956 Troops of PLA
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | Year: 2014

An infrared moving object detection method which combines Reichardt-type two dimensions Elementary Motion Detectors inspired by biological vision and region growing method was proposed to solve the two dimensions EMDs' sensitive problem in dynamic scenes. EMDs detected the most intensive motion vector signal in temporal domain which was then used as the seeds of the region growing. Region growing method was applied to make a segmentation of the target by its infrared radiation characteristic much different from background in spatial domain. The simulation illustrates that, combing the EMDs in temporal domain with the region growing method in spatial domain achieves much better detection performance in infrared frames than the original Reichardt's model. Compared with other methods, the proposed method could achieve a higher SCR. ©, 2014, Chinese Society of Astronautics. All right reserved. Source

Guo S.-G.,No. 63956 Troops of PLA | Zhang Z.-Y.,No. 63956 Troops of PLA | Liu Z.-L.,No. 63956 Troops of PLA | Liu Y.-J.,No. 63956 Troops of PLA
Binggong Xuebao/Acta Armamentarii | Year: 2010

The effects of the secondary fragment groups at three energy levels, the fragment groups at different parameter level and the fuse on mine power as well as the anti-mine ability of vehicles were quantitatively analyzed using the anti-tank belly mine power calculation software based on the former test and the assumed data. The power estimate formula was set up according to the third energy level diameter. In general, the fragment group parameter level is in proportion to the power, and the third energy level has a remarkable effect on power. Now, 3%~5% power is offered by fuse, new belly material can reduce the power effectively. Source

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