A video recording method for touch screen devices based on vector coding

Abstract

The invention relates to a video recording method and provides a video recording method based on vector coding and applied to a touch screen device. The video recording method based on vector coding and applied to the touch screen device comprises the following steps that a user opens software to start recording through a device terminal with a touch screen and a touch screen handwriting pen; the user writes on the screen; the user clicks a shooting button or clicks a picture leading-in button to lead a picture to the screen; the picture on the screen is selected and change such as movement is conducted; after a word button is input, a text input box is inserted in the position of a touch point, and words are input and encoded; when recording goes wrong or the user wants to correct the latest pen trace or picture operation is wrong, a software undoing button is clicked until the recorder thinks that recording is faultless or no content on the screen can be undone; after undoing, if the user wants to recover the latest undone object or redo the latest undone object, a redoing button can be clicked, and therefore the undone object can be displayed on the screen again; if the slips of the tongue occur or voice is wrong, a voice rollback button is clicked, and the voice goes back to a certain moment in last N seconds; when video recording is finished, a recording completion button on a recording interface is clicked.

Description

technical field [0001] The invention relates to a video recording method, in particular to a vector coding-based video recording method for a touch screen device. Background technique [0002] In the field of educational video, there are three main problems in the current video: 1) The cost of video recording is relatively high; 2) In order to ensure that the content in the video can be seen clearly, the recorded video file is very large, which takes up a lot of disk and bandwidth; 3) The process of video recording is difficult to control, the recording quality is poor, and the user experience is terrible. [0003] The existing method of educational video recording is to set up a high-definition camera, and the cameraman is responsible for tracking the movement of the subject of the lecture and the points of attention in the classroom; at the same time, in order to achieve better results, some use electronic blackboards, put chalk on the The trace data on the blackboard is ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the following problems in the existing educational video field: 1) In order to ensure that the content of the video can be seen clearly, the recorded video file is very large, occupying a large amount of disk and bandwidth; 2) The cost of video recording is relatively large High; 3) The process of video recording is difficult to control, the recording quality is poor, and the user experience is poor; provide a video recording method based on vector encoding for touch screen devices