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Method, device and mobile device for screenshotting or cutting video

A video and sub-video technology, applied in the field of image processing, can solve the problems of low accuracy, time-consuming, complicated operation steps, etc., and achieve the effects of high accuracy, simple and fast operation process, and high interception accuracy.

Active Publication Date: 2017-12-19
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a method, device and mobile device for video screenshot or cutting, so as to solve the problems of cumbersome, time-consuming and low accuracy in the existing video screenshot or cutting method

Method used

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  • Method, device and mobile device for screenshotting or cutting video
  • Method, device and mobile device for screenshotting or cutting video
  • Method, device and mobile device for screenshotting or cutting video

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] figure 1 It is a schematic flowchart of a video screenshot or cutting method provided in Embodiment 1 of the present invention. The method can be executed by a video screenshot or cutting device, wherein the device can be implemented by software and / or hardware, and is generally integrated into a mobile in the device. Such as figure 1 As shown, the method includes:

[0021] Step 101, collect voiceprint information in a voice sample.

[0022] Exemplarily, the mobile device may specifically be devices such as a mobile phone, a tablet computer, and a notebook computer. Those skilled in the art know that the device for implementing the method described in this embodiment is not limited to be integrated in mobile devices, but can also be integrated in other electronic devices such as desktop computers. Generally, it is integrated in mobile devices because of the benefits The effect is more obvious, so the embodiment of the present invention is only described by taking th...

Embodiment 2

[0038] figure 2 It is a schematic flowchart of a video screenshot or cutting method provided by Embodiment 2 of the present invention. This embodiment is optimized based on the above embodiments. In this embodiment, the target video is segmented and scanned, and according to the The acquired time points generate multiple sub-time axes, and then perform segmented screenshots or cuts of the target video according to the multiple sub-time axes.

[0039] Correspondingly, the method of this embodiment includes the following steps:

[0040] Step 201, collect voiceprint information in a voice sample.

[0041] Step 202: Scan the target video segmentally according to the voiceprint information, and obtain the time point at which a sound matching the voiceprint information appears in the target video.

[0042] Exemplarily, in order to speed up the process of screenshotting or cutting, the audio information in the target video may be extracted, and the extracted audio information may ...

specific Embodiment approach

[0049] For example, the user needs to take a video screenshot of a video A in the mobile phone, in order to capture the scene containing the voice of character B. The user can first specify the capture type as screenshot, and then confirm that the target video to be captured is video A of the entire duration. The user selects a file containing the voice of person B in the mobile phone (it can be an audio file or a video file), or specifies a scene containing the voice of person B in video A as a sound sample, and collects the voiceprint information in the sound sample. Divide video A into N segments on average for multi-threaded scanning and matching, and each time a sub-time axis containing voiceprint information of character B is generated, a screenshot of the segment of video is taken according to the sub-time axis. The image file generated after the screenshot is named after its time point in video A and stored in the phone's memory. If there are many scenes where charact...

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Abstract

The embodiment of the invention provides a video screenshot or clipping method, a video screenshot or clipping device and a mobile device. The method comprises the steps of acquiring voiceprint information in a voice sample; scanning target video according to the voiceprint information, and acquiring a time point when a voice matched with the voiceprint information appears in the target video; and carrying out screenshot or clipping on the target video according to the acquired time point. Through adopting the technical scheme provided by the embodiment of the invention, the voice sample and the target video can be designated when a user uses the mobile device to carry out a video screenshot or clipping operation, the mobile device can scan the target video automatically according to the voiceprint information acquired from the voice sample, a video image or the video content matched with the voiceprint information is intercepted, the algorithm is simple, the interception accuracy is high, and quick interception can be realized. The whole operating process is simple and convenient, the user does not need to manually select the interception position, and user requirements can be met.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular to a method, device and mobile device for screenshotting or cutting a video. Background technique [0002] When people watch video files such as movies, TV dramas or short films taken by themselves, they usually encounter many interesting scenes, such as character shapes, lines, scenery, etc. contained in the video. At this time, people often want to save these scenes in the form of pictures or short videos by means of video screenshots or video cuts, so that they can be viewed or used in the future. [0003] For many users, they may only be interested in scenes involving the same character, so they will want to save pictures or short videos that only involve that character. In order to fully capture all the scenes containing the character in a video file, the user needs to continuously perform screenshots or cut operations during the viewing proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/439H04N21/44H04N21/4402
CPCH04N21/4394H04N21/44012H04N21/440245
Inventor 刘黎
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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