Method for geometrically correcting vertically mapped images of fisheye lenses in fisheye image mosaic
A fisheye lens and fisheye image technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of affecting the splicing effect, unable to map the hemisphere area, deformation, etc., to avoid traffic accidents, good visual scenes, high resolution rate effect
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[0032] A fisheye lens vertical mapping image geometric correction method in fisheye image stitching, the specific steps are:
[0033] Step (1). Four fisheye images obtained by four fisheye lenses facing four directions respectively , , , According to the inverse process of the fisheye lens imaging process, it is mapped to a perspective plane image , , , .
[0034] The inverse process mapping method of the fisheye lens imaging process is a mature prior art.
[0035] Step (2). Using the scale-invariant feature transformation algorithm to obtain adjacent perspective plane images respectively and Matching pixel points in the overlapping area in , to obtain a perspective plane image and Corresponding overlapping area perspective planar image and .
[0036] The scale-invariant feature transformation algorithm adopts mature existing methods, such as the SIFT algorithm.
[0037] Step (3). Press to acquire fisheye image The preset pitch angle of the f...
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