An Optical-Camera Complement to a PIR Sensor Array for Intrusion Detection and Classfication in an Outdoor Environment. - Tarun Choubisa; Sampad B. Mohanty; Mohan Kashyap; Shivangi Gambhir; Kodur Krishna Chaitanya; A. Sridhar; P. Vijay Kumar (LCN Workshops, 2017)