Traditional Culture Encyclopedia - Photography major - Surveying and mapping experts help answer several questions.
Surveying and mapping experts help answer several questions.
Least square image matching principle
Mathematical model of image matching based on ∑ vv = min principle. If the system deformation parameters are introduced into this system and solved according to the principle of ∑ vv = min, a least square image matching system is formed.
Methods: Shadow matching based on object placement, shadow matching based on gray level and epipolar shadow matching.
A prominent feature of the digital photogrammetry era is that the digital photogrammetry system replaces the expensive analog and analytical photogrammetry instruments. All-digital photogrammetry systems with independent intellectual property rights in China mainly include VirtuoZo, JX4 and DPGrid.
There are two ways to get it: aerial photography and satellite images.
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