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A Method of Determining the Position of a Surface Pointer

A pointer position and pointer technology, applied in the field of determining the surface pointer position, can solve the problem of high test accuracy

Active Publication Date: 2022-04-05
武汉晨龙电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, according to the test, the accuracy rate is very high

Method used

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Experimental program
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Embodiment Construction

[0035] The technical solutions of the present invention are described in detail below.

[0036] The present invention only needs to solve the three algorithm problems of image recognition, noise overcoming and time calibration, as well as the actual optimization problem of different requirements for mobile phone processors.

[0037] The extraction of the surface pointer already has the image extraction. However, due to the problems of light and color in the image extraction, it is difficult to determine the position of the pointer more accurately for a single picture, and the shooting of multiple pictures is due to the time interval of shooting. As a result, there is a very high probability that the pointer will move.

[0038] The present invention adopts the method of extracting pictures from the video, the video has continuity, and many frames of pictures can be extracted in one second from the video, and the position of the pointer remains basically unchanged when processin...

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Abstract

A method for determining the position of a surface pointer, said method comprising the following steps: Step 1, using a camera of a shooting device to capture a video on the surface of a watch in real time; Step 2, said shooting device identifying the video captured by the camera, and the The identification is to extract the image of the video for identification; Step 3, the photographing device locates the image so that the image is located in the dial area; Step 4, the photographing device locates the hands of the dial area Positioning processing to obtain a pointer; Step 5, the photographing device determines an angle at which the pointer deviates from a preset point. Through the above-mentioned technical solution, firstly, the position of the pointer of the watch on the surface can be calculated accurately and in real time; secondly, the requirements for the processor of the mobile phone are not high. And it adopts the method of selectively ignoring image frames, so that low-end mobile phones can perform very smoothly even if they cannot process images quickly.

Description

technical field [0001] The present invention relates to a method of determining the position of a pointer on a surface. Background technique [0002] At present, the calibration of smart physical pointer watches is more troublesome, requiring naked eye recognition and manual adjustment. Our company has developed a method of time synchronization by taking pictures. This method gives the mobile phone a very accurate premise for taking pictures and recognizing the picture. Moreover, the picture taken is an instantaneous action, and the picture is fixed. After the picture is taken, it is processed During the completion period, the time is moving. Therefore, there may be certain errors in this process, and a large number of correction algorithms are required to correct the time. Contents of the invention [0003] Based on the above technical problems, the present invention provides a method for determining the position of the pointer on the surface. The method recognizes the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06T5/00G06T7/10G06T7/70
CPCG06T7/10G06T7/70G06V20/40G06T5/70
Inventor 苏江范凤华黄树志
Owner 武汉晨龙电子有限公司
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