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Video cropping method and device, equipment and storage medium

A video and clipping frame technology, applied in the field of computer vision, can solve problems such as low practicality, poor user experience, and low important information

Active Publication Date: 2021-01-05
BEIJING BYTEDANCE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the randomness of the position of important information in the original video, cutting the original video by center cropping may cause the important information in the video to be too low, resulting in low practicability and poor user experience

Method used

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  • Video cropping method and device, equipment and storage medium
  • Video cropping method and device, equipment and storage medium
  • Video cropping method and device, equipment and storage medium

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Embodiment Construction

[0028] The solutions provided in the embodiments of the present application mainly relate to the technical field of computer vision (Computer Vision, CV).

[0029] Computer Vision (Computer Vision, CV) is a science that studies how to make machines "see". Furthermore, it refers to the use of computer equipment such as cameras and computers instead of human eyes to identify, track and measure target objects in images, etc. , the image can be further processed to make the processed image more suitable for human observation or easier to transmit to other equipment for detection. The theory and technology related to computer vision research, trying to build an artificial intelligence system that can obtain information from images or multi-dimensional data. Computer vision technology can usually include image processing, image recognition, image semantic understanding, image retrieval, optical character recognition (Optical Character Recognition, OCR), video processing, video seman...

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Abstract

The invention provides a video cropping method and device, equipment and a storage medium. The method comprises the following steps: acquiring at least one detection box of a first image frame; determining the cost of the detection box according to at least one selected from the importance score, the coverage area and the smooth distance of any detection box in the at least one detection box; determining the first detection box with the lowest cost in the at least one detection box as a cropping box; and cropping a first image frame based on the cropping frame. Based on the cost of each detection frame, the first detection frame with the minimum cost in the at least one detection frame is determined as the cropping frame so as to crop the first image frame, thereby improving the flexibility of video cropping and enhancing the cropping effect under the condition of ensuring the simplification of a video cropping process.

Description

technical field [0001] The embodiments of the present application relate to the field of computer vision, and more specifically, to a method, device, device and storage medium for cropping a video. Background technique [0002] Usually, the aspect ratio of the ad space used to place the advertising video is fixed, such as 9:16. However, the size of the original video is various, for example, different original videos have different aspect ratios, so , causing many original videos to be inconsistent with the size required by the ad slot, making it impossible to directly place original videos of other sizes on the ad slot. Based on this, the original video needs to be cropped to fit the size of the ad slot. [0003] So far, the original video is generally cropped by center cropping. [0004] However, due to the randomness of the position of important information in the original video, cutting the original video by means of center cropping may cause the important information ...

Claims

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Application Information

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IPC IPC(8): H04N21/44H04N21/4402
CPCH04N21/44H04N21/4402H04N21/4728H04N21/44008G06V10/16G06V10/462H04N21/440245G06V30/153G06V40/161G06V10/34G06T5/70
Inventor 吴昊马云涛王长虎
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD
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