Method and device for obtaining candidate fragments from video and processing device

The invention provides a method and device for obtaining the candidate fragments from a video and a processing device, and relates to the technical field of action detection. The method comprises thefollowing steps of obtaining a to-be-detected video; respectively calculating image similarity between adjacent video frames of the to-be-detected video through a preset similarity algorithm to obtaina similarity sequence, wherein the sequence of the image similarities in the similarity sequence is the same as the sequence of the video frames; taking the image similarity greater than a first segmentation threshold in the similarity sequence as a target image similarity; and if the arrangement sequence of the plurality of target image similarities in the similarity sequence is continuous, taking the video frames corresponding to the plurality of target image similarities as candidate fragments of the to-be-detected video. According to the method and the device for obtaining the candidate segment from the video and