Since the real-time image and norm image shoot height, orientation and image size are different, the two image's outline exist rotation and distortion, and so obtained image's edge character is influenced by picture's gray distribution, so that the match
Since the real-time image and norm image shoot height, orientation and image size are different, the two image's outline exist rotation and distortion, and so obtained image's edge character is influenced by picture's gray distribution, so that the match
摘要下视景像匹配制导中，实时图和基准图的拍摄高度、方位和图像比例尺不完全一致，两图的轮廓形状存在旋转和变形等差异，边缘特征提取方法受图像灰度分布影响存在变形和移位，易导致匹配错误。