Eyesight protection system based on three-dimensional camera shooting and method

A technology for three-dimensional photography and eye protection, applied in photography, stereo photography, image data processing, etc., can solve the problems of inaccuracy and calculation results easily affected by the size of the face, and achieve the effect of eliminating influence and improving accuracy

Active Publication Date: 2008-11-12
VIMICRO ELECTRONICS CORP
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Problems solved by technology

[0005] However, the corresponding relationship between the face size and distance in the image obtained by this statistics can only be an average relationshi...

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  • Eyesight protection system based on three-dimensional camera shooting and method
  • Eyesight protection system based on three-dimensional camera shooting and method

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Embodiment Construction

[0037] In the embodiment of the present invention, in order to prevent the calculation result of the distance between the human eye and the display screen from being affected by the size of the human face, it is not based on the principle of perspective imaging, but directly detects the position of the human eye and calculates the distance based on the depth calculation technology in 3D imaging. The distance between the human eye and the monitor screen. In practical applications, if the position of the human eye is not easy to detect, other feature positions in the face can also be detected, and the distance between the feature position and the display screen can be used as the distance between the human eye and the display screen, or it can also be detected For the upper half of the face, the average distance between the points in the upper half of the face and the display screen is taken as the distance between the human eye and the display screen.

[0038] In order to make ...

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Abstract

The invention discloses an eyesight protection system and a method based on three-dimensional videography, wherein the method comprises the following steps that: a display is taken as a videography center to obtain a human body image positioned in front of the display, and the position of a face setting zone is detected inside the human body image; according to the obtained position information of the face setting zone, the image of the face setting zone is determined inside the human body image; according to the image of the face setting zone and the calibration information of a three-dimensional videography unit, the distance between eyes and a display screen is calculated; moreover, when the calculated distance is less than a set protection distance, warning information is sent out. The technical proposal disclosed by the invention does not need to determine a safety distance according to the statistical information of face size, and eliminates the influence of face size on a calculated result.

Description

technical field [0001] The invention relates to vision protection technology, in particular to a vision protection system and method based on three-dimensional imaging. Background technique [0002] At present, display devices such as television sets and computers have become an indispensable part of people's daily life, and watching TV at close range for a long time and using computers are more and more threatening people's eyesight. Because the eye muscles are in a tense state when the eyes are staring at the monitor screen, if the distance between the eyes and the screen is too close, it is easy to cause visual fatigue and reduce vision. [0003] For this reason, a vision protection method is currently proposed. Based on the principle of perspective imaging, the method uses face detection and face size statistics to obtain the approximate distance between the face and the screen. When the distance is less than the set protection distance, Then give an alarm. [0004] Am...

Claims

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Application Information

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IPC IPC(8): A61F9/00G03B35/00G06T1/00G08B21/00
Inventor 谢东海黄英
Owner VIMICRO ELECTRONICS CORP
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