摘要
研究了一种基于手机的低成本热成像系统架构及其组成要素:热成像模块、手机与专属操作软件等。探讨了各种阵列热成像模块的设计理念与考虑因素,包含元器件成本与噪声等效温差等。软件中引入了场景变化侦测来改善非均匀修正算法的效率。该系统在积分时间大于16帧的情况下,其噪声等效温差(NETD)可低于150 m K。特别地,将该系统应用于人体运动健康评估中的体温监测上,试验证实了其在医学应用上的可靠性与便利性。
The technical structure of a low-cost thermal imaging which consists of a thermal infrared module and mobile system （TIM） lunched on a mobile phone was investigated, phone and application software. The designing strategies and technical factors toward realizing various TIM array performances are interpreted, including sensor cost and Noise Equivalent Temperature Difference （NETD）. In the software algorithm, a mechanism for scene-change detection was implemented to optimize the efficiency of non-uniformity correction （NUC）. The performance experiments and analysis indicate that the NETD of the system can be smaller than 150 mK when the integration time is larger than 16 frames. Furthermore, a practical application for human temperature monitoring during physical exercise is proposed and interpreted. The measurement results support the feasibility and facility of the system in the medical application.
出处
《中国医疗器械杂志》
CAS
2015年第3期173-176,共4页
Chinese Journal of Medical Instrumentation
关键词
红外热像仪
手机
移动医疗
非均匀修正算法
无线监测
infrared thermal imaging system, mobile phone, mobile health, non-uniformity correction, wireless monitoring
作者简介
通信作者：刘静，E-mail：jliubme@tsinghua．edu．cn
