Eye protection method for users in front of video display terminal
A display terminal, video screen technology, applied in special data processing applications, instruments, electrical digital data processing and other directions, can solve problems such as not being able to cause users well
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[0014] Step 1: The user enters the distance s between the current face and the screen in the system 0 , the system will calculate the ratio m=l / s according to the side length l of the face recognition frame detected by the video capture device 0 .
[0015] Step 2: The video capture device detects whether the user is working in front of the video display terminal through the video capture device combined with the face detection algorithm every t seconds, and saves the side length l of the face detection frame and time information.
[0016] Step 3: Scan the side length l of the face detection frame recorded in the user record, and use l / m to calculate the distance s between the user's eyes and the video display terminal device at this time. If s is less than the set threshold S, assign the time of the current record to t 3 ;Sequentially calculate the s value of the next record, if the s value is less than the set threshold S, assign the time of this record to t 4 , and calcul...
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