NASA's Mars Exploration Rover Opportunity took this image in preparation for the first autonomous selection of an observation target by a spacecraft on Mars.
NASA的火星勘探机器人机遇号拍了这张照片，为火星探测器首个自主选择观测目标作准备。
An algorithm using threshold selection and edge detection to extract target features from infrared image was proposed.
提出了一种阈值选取与边缘检测相结合提取红外图像特征的方法。
Detection, identification, and selection of moving target through image sequence are very important to Air Traffic Control System and Air Defense System.
利用图象序列来检测、识别和选择运动飞机目标，对于诸如航空管制和防空系统有着十分重要的意义。
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