The invention relates to a
geocoding-free rapid
image splicing method of a low-altitude unmanned plane. A
key frame image is extracted from a video to carry out
geocoding-free rapid
image splicing to generate a panoramic image. The method comprises the following steps: extracting a
key frame image from a video
stream to obtain all to-be-spliced images; carrying out feature point extraction including establishing a multi-dimensional space unit, constructing a
pyramid image, determining a key point position, and removing an unstable point on all to-be-spliced images and carrying out screening on the key point by using a SUSAN
algorithm to obtain a final feature point; carrying out
feature matching according to respective feature points of a corresponding
reference image and a to-be-matched image; and carrying out smoothening on the to-be-spliced images by using a
gain compensation method, carrying out weighted average fusion on spliced overlapped areas to eliminate seams and sawteeth, and carrying out splicing to generate a panoramic image. According to the technical scheme, the method can be applied to fields of emergency surveying and mapping, disaster prevention and mitigation, land monitoring, emergency monitoring, pipeline
layout and inspection of the oil sector, and circuit
layout and
power line inspection of the
power sector and the like.