| Summary: | 碩士 === 國立交通大學 === 多媒體工程研究所 === 98 === The main purpose of this thesis is to construct a mobile system that integrates heterogeneous cameras, a near-infrared and a mid-infrared camera, for nighttime surveillance. The system, which consists of these cameras and a mobile robot, can locate target objects, e.g., human or animal, using some reference LEDs in the scene. The system first detects high temperature objects and the reference LEDs in the mid-infrared image and near-infrared image, respectively. The localization of target object can then be performed efficiently by homographic transform and planar coordinate transformation. In order to reduce the localization errors, we also study how errors may be generated during the localization process, and possible ways to reduce their influences. Experimental results show that, with the help of such analysis, more accurate and reliable object localization can be achieved with the proposed surveillance system.
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