Key frame extraction method and device based on image quality, electronic equipment and medium

The embodiment of the invention provides a key frame extraction method and device based on image quality, electronic equipment and a medium, and belongs to the technical field of artificial intelligence. The method comprises the following steps: performing quality evaluation on m images through a pre-constructed quality evaluation model to obtain an image quality score of each image; determining n target images of which the image quality scores are greater than or equal to a preset quality score from the plurality of images according to the image quality score of each image; and obtaining candidate images according to the n target images and a preset definition threshold, performing feature point matching on the candidate images, and extracting key frames. In this way, quality evaluation is added to carry out quality evaluation on a plurality of images, and images with relatively high definition are selected for key frame extraction, so that the matching rate of image feature points and the optimization effec