用功率谱的方法对任意景物在空间频域进行分析表明，功率谱对于自然景物具有一定的不变性。
Different scenes are analyzed in the power spectrum spatial frequency domain, it can be shown that the power spectrum of most natural scenes is of invariability.
灰度相关直接用图像灰度进行匹配，没有考虑场景物体之间的空间和结构相关性，使得结果对结构、光照、纹理和畸变十分敏感。
Matching is performed directly with the image intensity in the area-based correlation without counting the space and structure correlation between objects.
邹良材的水墨山水有近观取景和远视取景两种不同的方法，对于前者，艺术家注重近景物体细节的刻划，形成富有艺术感染力的视觉中心，以扩大画面的空间；
For the former, the artist pays attention to the description of details about close-range objects, and an artistically appealing visual center is formed, in order to expand the space of the picture.
应用推荐