PMID- 25938202 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150622 LR - 20181113 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 15 IP - 5 DP - 2015 Apr 29 TI - Joint infrared target recognition and segmentation using a shape manifold-aware level set. PG - 10118-45 LID - 10.3390/s150510118 [doi] AB - We propose new techniques for joint recognition, segmentation and pose estimation of infrared (IR) targets. The problem is formulated in a probabilistic level set framework where a shape constrained generative model is used to provide a multi-class and multi-view shape prior and where the shape model involves a couplet of view and identity manifolds (CVIM). A level set energy function is then iteratively optimized under the shape constraints provided by the CVIM. Since both the view and identity variables are expressed explicitly in the objective function, this approach naturally accomplishes recognition, segmentation and pose estimation as joint products of the optimization process. For realistic target chips, we solve the resulting multi-modal optimization problem by adopting a particle swarm optimization (PSO) algorithm and then improve the computational efficiency by implementing a gradient-boosted PSO (GB-PSO). Evaluation was performed using the Military Sensing Information Analysis Center (SENSIAC) ATR database, and experimental results show that both of the PSO algorithms reduce the cost of shape matching during CVIM-based shape inference. Particularly, GB-PSO outperforms other recent ATR algorithms, which require intensive shape matching, either explicitly (with pre-segmentation) or implicitly (without pre-segmentation). FAU - Yu, Liangjiang AU - Yu L AD - School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK 74078, USA. liangjiang.yu@okstate.edu. FAU - Fan, Guoliang AU - Fan G AD - School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK 74078, USA. guoliang.fan@okstate.edu. FAU - Gong, Jiulu AU - Gong J AD - School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China. lujiugong@bit.edu.cn. FAU - Havlicek, Joseph P AU - Havlicek JP AD - School of Electrical and Computer Engineering, University of Oklahoma, Norman, OK 73019, USA. joebob@ou.edu. LA - eng PT - Journal Article DEP - 20150429 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 PMC - PMC4481947 EDAT- 2015/05/06 06:00 MHDA- 2015/05/06 06:01 PMCR- 2015/05/01 CRDT- 2015/05/05 06:00 PHST- 2015/02/13 00:00 [received] PHST- 2015/04/17 00:00 [revised] PHST- 2015/04/22 00:00 [accepted] PHST- 2015/05/05 06:00 [entrez] PHST- 2015/05/06 06:00 [pubmed] PHST- 2015/05/06 06:01 [medline] PHST- 2015/05/01 00:00 [pmc-release] AID - s150510118 [pii] AID - sensors-15-10118 [pii] AID - 10.3390/s150510118 [doi] PST - epublish SO - Sensors (Basel). 2015 Apr 29;15(5):10118-45. doi: 10.3390/s150510118.