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Eye search method, eye state detection device, and eye search device

A technology of eye state and detection device, applied in the field of image processing, can solve the problem of spending a lot of time

Active Publication Date: 2018-07-24
UTECHZONE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the eye search area set by the known eye detection device is a rectangular area with a relatively small width in the horizontal direction and a large vertical direction, and its coverage is quite large (the eyebrows and cheekbones have been covered). Eye detection devices are known to take a lot of time to find the upper and lower eyelids from this eye search area

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  • Eye search method, eye state detection device, and eye search device
  • Eye search method, eye state detection device, and eye search device
  • Eye search method, eye state detection device, and eye search device

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Embodiment Construction

[0021] As for other invention contents and more detailed technical and functional descriptions of the present invention, they will be disclosed in the following description.

[0022] figure 1 The block diagram shows a preferred embodiment of the eye state detection device of the present invention, which includes a storage unit 1, a camera unit 2, a processing unit 3, an output unit 4 electrically connected to the processing unit 3 and an input Unit 5 (may consist of multiple keys). The storage unit 1 is composed of one or more accessible non-volatile memories, and stores a program, the program includes a set of eye search program codes 10 , preferably also includes a set of eye state judgment program codes 11 . The photographing unit 1 is used to photograph a user's face to generate a plurality of continuous images and temporarily store them in the storage unit 1 .

[0023] The photographing unit 2 preferably has a lens (not shown) that can be rotatably adjusted in direction...

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Abstract

The invention provides an eye search method, an eye state detection device and an eye search device. The method comprises the following steps: finding two nostril center points from a facial image; calculating the distance D between the two nostril center points and an intermediate point between the two nostril center points; determining a benchmark point, the horizontal and vertical distances between the reference point and the intermediate point are k1×D, k2×D, k1=1.6~1.8, k2=1.6~1.8; and a rectangular frame is determined with the reference point as the center, the The horizontal width of the rectangular frame is greater than the vertical width of the rectangular frame, and the rectangular frame surrounds the eyes in the facial image. Through the foregoing method, the present invention can quickly and accurately find a certain part of the eye from the facial image captured by a camera unit.

Description

technical field [0001] The invention relates to image processing technology, especially how to quickly and correctly find eyes from a facial image for subsequent application. Background technique [0002] In some applications that need to recognize the state of the eyes, such as detecting the state of the eyes of a driver to determine whether he is dozing off, detecting the state of the eyes of a patient with frostbite to determine the instructions he is currently issuing, many technologies have come out. Among them, the technology of identifying the state of eyes by means of image processing is mentioned in patent cases such as Taiwan 436436, I349214, M416161, 201140511, U.S. US8,094,883, US8,184,008 and China CN101196993. This type of technology mainly uses a photography device to shoot a user's face to generate the user's facial image, and then uses an eye recognition device to process the facial images, and judges the user's face according to the processing result. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/32
Inventor 邹嘉骏林伯聪方志恒
Owner UTECHZONE CO LTD
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