標題: Feasibility study on low-resolution uncooled thermal imagers for home-security applications
作者: Lee, TS
Shie, JS
光電工程學系
Department of Photonics
關鍵字: passive IR sensing;home security;thermal imager;uncooled camera
公開日期: 1-六月-2000
摘要: The feasibility of using low-resolution thermal imagers for home security applications is analyzed, taking low cost as the primary consideration. The smallest possible sensor size and resolution are chosen as the operative criteria and derived by simulation, in accordance with the optical constraints of a general home security system and the minimum target feature recognizable using image processing. Low-resolution simulated thermal images were generated by downgrading the high-resolution images captured by an uncooled IR camera, through sampling and modification. Caricatures of human beings and family pets are extracted for recognition using aspect-ratio and neural network methods, which are compared with one another for detection probability. It is demonstrated that highly reliable detection of human beings or pets with a minimal target feature of 8x8 pixels can be obtained using the neural network method. Also, a fire can be detected early using its temporal size variation and higher temperature. Finally, low-cost fabrication of the proposed low-resolution passive infrared imaging system with an uncooled FPA sensor utilizing a fully standard application-specific IC CMOS process is also discussed in detail, (C) 2000 Society of Photo-Optical Instrumentation Engineers.
URI: http://dx.doi.org/10.1117/1.602514
http://hdl.handle.net/11536/30482
ISSN: 0091-3286
DOI: 10.1117/1.602514
期刊: OPTICAL ENGINEERING
Volume: 39
Issue: 6
起始頁: 1431
結束頁: 1440
顯示於類別:期刊論文


文件中的檔案:

  1. 000087526000003.pdf