Three-dimensional affine transformation method and satellite remote sensing image geometry correction method
A satellite remote sensing image and affine transformation technology, which is applied in image enhancement, image data processing, instruments, etc., can solve the problems of low geometric correction accuracy of line scanner images, difficult multi-sensor triangulation selection, and high model complexity.
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[0072] As mentioned in the background art, there are many bottlenecks in the existing satellite remote sensing image geometric correction technology, which makes it necessary to develop a satellite remote sensing image geometric correction method based on other image features. However, linear features such as valleys, rivers, and roads, as image features that are easy to extract and carry rich information, have received more and more attention in the field of image geometric correction.
[0073] For this reason, the present invention provides a kind of three-dimensional affine transformation method based on line feature, and this method uses ALBTM (3D Affine Line-Based Transformation Model, three-dimensional affine transformation model based on line feature) to express two-dimensional image space and three-dimensional ground The interconnection between object spaces, and the specific mathematical expression of the ALBTM is
[0074] Sa x =C 1 A X +C 2 A Y +C 3 A Z ,
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