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Method for automatically detecting user sitting posture based on handheld equipment

A hand-held device and automatic detection technology, applied in applications, measuring devices, measuring distances, etc., to achieve the effect of easy promotion and improved eye hygiene

Active Publication Date: 2014-09-10
福建省华渔教育科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this invention does not detect the user's sitting posture for mobile devices, but uses OpenCV image processing software for face detection and obtains the face area

Method used

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  • Method for automatically detecting user sitting posture based on handheld equipment

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Embodiment Construction

[0012] see figure 1 As shown, a kind of hand-held device of the present invention carries out automatic detection method to user's sitting posture, comprises the following steps:

[0013] Step 1. Call the front camera of the handheld device to acquire an image every interval M, and obtain the width and height of the image; the range of the time interval M is 0.1 seconds to 5 seconds;

[0014] Step 2, when obtaining an image, first reduce the image obtained by the camera by X times, and then perform face detection on the reduced image, which can improve the speed of face detection; the range of X is 1<X<100; The image reduction method adopts the image resize algorithm in the OpenCV image processing (this image resize algorithm is an algorithm disclosed in the OpenCV image processing technology) to reduce; if a face area is detected, obtain the width and height of the face area, and enter the step 3; If no face area is detected, go to step 4;

[0015] Step 3, divide the width ...

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Abstract

The invention provides a method for automatically detecting a user sitting posture based on handheld equipment, which comprises the following steps of: 1, calling a front-facing camera of the handheld equipment, acquiring an image every a time interval M, and acquiring width and height of the image; 2, in the process of acquiring the image, carrying out a human face detection on the image, if the human face is detected, calculating width and height of a human face region, and carrying out steps 3, and if the human face is not detected, carrying out step 4; 3, calculating a proportion A of the width / height of the human face region and the width / height of the image, setting a proportional threshold value, if A is smaller than the threshold value, the human face is far enough away from the handheld equipment, if A is greater than or equal to the threshold value, a user is too near to the handheld equipment or the user sitting posture is not proper, giving prompt information to the user, and finishing the step; and 4, if the user is too near to the handheld equipment or the user sitting posture is not proper, giving prompt information to the user. With the method, the detection of the user sitting posture can be achieved by the existing handheld equipment, and the eye health of the user can be improved.

Description

【Technical field】 [0001] The invention relates to a method for automatically detecting a user's sitting posture based on a handheld device. 【Background technique】 [0002] Eye hygiene for teenagers is a concern of the whole society. The current research on children's sitting posture detection has also given some solutions, for example, using ultrasonic transmitting and receiving devices to determine the distance between the user's head and so on. However, the main problem of these technologies is that the equipment or methods are relatively complicated, require additional costs, and are not easy to promote. There is no effective solution for the characteristics of mobile devices in the prior art; with the popularization of mobile device applications, such as: mobile phones, ipads, etc.; the opportunities for teenagers to use mobile devices to read are increasing, so it is necessary to target such usage scenarios Provide detection methods to remind users to pay attention to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C3/00G06K9/00G06K9/22A61B5/00
Inventor 刘德建陈宏展关胤李俊姚福建
Owner 福建省华渔教育科技有限公司
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