Video feature extraction method and device

  • US 11,055,536 B2
  • Filed: 12/29/2018
  • Issued: 07/06/2021
  • Est. Priority Date: 03/29/2018
  • Status: Active Grant
First Claim
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1. A video feature extraction method, comprising:

  • extracting one or more frames from a video object to obtain one or more frames of images;

    obtaining one or more shift vectors for each of the one or more frames of images, using each of the one or more shift vectors, taking any pixel in each of the one or more frames of images as a starting point, determining a terminal point directed by the one or more shift vectors from the starting point, and determining an image feature of the one or more frames of images according to a difference between the starting point and the terminal point, wherein the determining an image feature of the one or more frames of images according to a difference between the starting point and the terminal point further comprises;

    determining the difference between each starting point and a corresponding terminal point in one of the one or more frames of images for each of the one or more shift vectors, and determining a feature bit of the one of the one or more frames of images based on an identical shift vector of the one or more shift vectors according to an overall situation of each difference based on the identical shift vector so as to obtain the feature bit of each of the one or more shift vectors, anddetermining the image feature of the one of the one or more frames of images according to the feature bit of the one of the one or more frames of images based on the one or more shift vectors; and

    determining a video feature of the video object according to the image feature of the one or more frames of images.

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