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Method for defining static high-definition image shooting area under dynamic image preview

A dynamic image and high-definition image technology, applied in the field of image processing, can solve the problems of unclear intercepted images, cumbersome operations, and inability to obtain original high-definition images, and achieve the effects of strong practicability, high definition, and simple operation

Active Publication Date: 2020-12-01
CHENGDU YINENG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for defining the static high-definition image shooting area under the dynamic image preview, to solve the problem that the intercepted image in the existing image interception method is not clear, the original high-definition image cannot be obtained or the intercepted high-definition image is an overall picture, Second cropping is required, and the operation is cumbersome

Method used

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  • Method for defining static high-definition image shooting area under dynamic image preview

Examples

Experimental program
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Effect test

Embodiment 1

[0057] The teacher needs to explain the test paper during class, and only needs to obtain the part of the test question, and the rest of the content is not needed. The steps to obtain the test question image are as follows:

[0058] Step 1. Use the high-speed camera to preview and shoot the content of the test paper, and display the content of the test paper captured in the preview mode on the computer display screen in real time.

[0059] Step 2, calculate the width ratio or height ratio of the dynamic image on the computer display screen and the dynamic original image of the Gaopai instrument;

[0060] Specific steps are as follows:

[0061] Step 201. Obtain the width and height of the original dynamic image of the high-speed camera. Here, the width and height of the original dynamic image are obtained through the resolution of the Gaopai instrument, and the width*height of the original dynamic image of the Gaopai instrument is preset to 4032*3016;

[0062] Step 202, obtai...

Embodiment 2

[0081] During the experimental demonstration, it is necessary to save the image of the equipment and operation method of the experimental demonstration, and the rest of the operating environment and background are not required. The image acquisition steps are as follows:

[0082] Step 1. Shoot the experimental demonstration process through the camera, and display the dynamic image content captured in the preview mode on the computer display screen in real time.

[0083] Step 2, calculating the width ratio or height ratio of the dynamic image of the computer display screen and the original dynamic image of the camera;

[0084] Specific steps are as follows:

[0085] Step 201, acquiring the width and height of the original dynamic image of the camera. Here, the original dynamic image size is obtained through the camera resolution, for example, the original dynamic image size of the camera is 4032*3016;

[0086] Step 202, obtaining the display height and width of the dynamic im...

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Abstract

The invention provides a method for defining a static high-definition image shooting area under dynamic image preview, belonging to the field of image processing. The present invention solves the problems in the existing image interception methods that the intercepted image is not clear, the original high-definition image cannot be obtained, or the intercepted high-definition image is an overall picture, which requires secondary cropping and cumbersome operations. The key points of the technical solution are: obtain the original dynamic image in real time and preview and display it on the display screen to obtain the dynamic image on the display screen; calculate the width ratio or height ratio between the original dynamic image and the dynamic image on the display screen; Capture the area, and record the position information of the intercepted image area; according to the position information of the intercepted image area, the width ratio or height ratio between the original dynamic image and the dynamic image on the display screen, obtain the image in the original dynamic image area corresponding to the intercepted image area The location information, width and height of the area are saved and displayed on the display screen.

Description

technical field [0001] The invention relates to image processing technology, in particular to the technology of a method for defining a static high-definition image shooting area under dynamic image preview. Background technique [0002] At present, with the popularization and application of information-based teaching equipment, the traditional "blackboard + chalk" classroom teaching is gradually being upgraded to multimedia-assisted teaching based on computer networks, large-screen display equipment, and voice systems. In order to further promote the application of information-based teaching in schools and improve the teaching level and efficiency, more and more schools have introduced display systems for teaching materials, such as: experimental demonstrations, test paper explanations, example explanations, etc. [0003] Real-time shooting of real objects and various printing materials by camera equipment, and synchronously displaying and explaining on the large screen, bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/80
Inventor 罗辉刘鑫庞炜陈挚黄启挺
Owner CHENGDU YINENG SCI&TECH CO LTD