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Target area detection method, device and terminal, and storage medium

A target area and detection method technology, applied in the computer field, can solve the problems of exclusion, difficult to re-detect, target area tracking failure, etc., to achieve the effect of subdividing the classification space, ideal detection effect, and improving classification accuracy

Active Publication Date: 2018-11-09
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the position or attitude of the terminal changes greatly during the video shooting process, some images of the video will not include the target area. Even if there is a target area in the image, it is difficult to be re-detected

Method used

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  • Target area detection method, device and terminal, and storage medium
  • Target area detection method, device and terminal, and storage medium
  • Target area detection method, device and terminal, and storage medium

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] Before the embodiment of the present invention is described in detail, first TLD (Tracking-Learning-Detection, tracking-learning-detection) algorithm is introduced as follows:

[0037] The TLD algorithm is used for long-term tracking of a single object in a video, see figure 1 , the TLD algorithm includes three modules: tracking module, detection module and learning module.

[0038] 1. Tracking module:

[0039] The tracking module is used to track the motion change between any two frames of adjacent images, and determine the position of the target area in the next frame image according to the position of the target area in the previous frame image and the motion change between the two frame images . T...

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PUM

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Abstract

The embodiment of the invention discloses a target area detection method, device and terminal, and a storage medium and belongs to the technical field of computers. The method comprises the followingsteps: determining a plurality of sample regions and classification results; acquiring a classifier, wherein the classifier comprises a plurality of classification nodes arranged in sequence; traininga first classification node in the classifier according to a plurality of sample regions and a classification result of a plurality of sample regions; continuing to train the next classification nodeafter the first classification node is trained until the multiple classification nodes are all trained; when it is determined that the currently tracked image does not contain a target region, usingthe trained classifier to classify at least one region in a second image after the currently tracked image; determining a target region in the second image according to the classification result, without the need of detecting each image, thereby reducing unnecessary calculation amount, improving the accuracy of the classifier and further improving the accuracy of the target region.

Description

technical field [0001] The embodiments of the present invention relate to the field of computer technology, and in particular to a target area detection method, device, terminal and storage medium. Background technique [0002] With the rapid development of the Internet and the widespread rise of video social networking, the main type of dissemination of Internet information has gradually evolved from text and pictures to video, and various video processing functions have also appeared one after another, such as video filters, video tagging, etc. , through these video processing functions, some target areas in the video can be personalized, which improves the fun. [0003] In related technologies, when the terminal is playing a video, the user can manually determine the target area in the current image, and the terminal edits the target area in the current image, such as adding stickers to the target area or beautifying the target area. In addition, based on the position of...

Claims

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Application Information

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IPC IPC(8): G06K9/62
CPCG06F18/241G06F18/214
Inventor 姜媚
Owner TENCENT TECH (SHENZHEN) CO LTD
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