Video characteristic extraction method and system

A technology of video features and extraction methods, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., and can solve the problems of no piano performance video feature extraction methods, etc.

Pending Publication Date: 2018-05-25
BEIJING KUWO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no effective video feature

Method used

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  • Video characteristic extraction method and system
  • Video characteristic extraction method and system

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] In order to facilitate the understanding of the embodiments of the present invention, further explanations will be given below with specific embodiments in conjunction with the accompanying drawings, which are not intended to limit the embodiments of the present invention.

[0018] figure 1 It is a schematic flowchart of a video featu...

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Abstract

The invention relates to a video characteristic extraction method and system. The method comprises the following steps that a depth camera records a video in which a pianist plays the piano accordingto a score; all pictures are extracted from the picture frame by frame, and key pressing information, including positions of keys pressed by fingers of the pianist and the key pressing depths and timelengths, when the pianist plays the piano is obtained from each frame of picture; and video characteristic information is extracted according to the key pressing information, and recorded in a videocharacteristic file corresponding to the score. Thus, the video characteristics of piano playing can be extracted rapidly, and playing of the pianist can be analyzed.

Description

technical field [0001] The invention relates to the technical field of piano performance intelligent sparring training, in particular to a method and system for extracting video features of piano performance. Background technique [0002] In the prior art, a camera is often used to record a video of a player playing the piano, and then the recorded video is analyzed to determine the level of piano playing. But there is no effective video feature extraction method for piano performance. Contents of the invention [0003] The purpose of the present invention is to solve the technical problem of video feature extraction of piano performance in the prior art. [0004] In order to achieve the above object, on the one hand, the present invention provides a video feature extraction method of piano performance, the method includes the following steps: using a depth camera to record a video of a player playing the piano with reference to the score; All the pictures, and the key i...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V20/46G06V20/41
Inventor 王辉
Owner BEIJING KUWO TECH
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