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Eyelid detecting apparatus, eyelid detecting method and program thereof

A detection device and detection mechanism technology, which is applied in the direction of eye testing equipment, diagnostic recording/measurement, sensors, etc., and can solve the problem of detecting iris in dark areas, etc.

Inactive Publication Date: 2008-07-02
AISIN SEIKI KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007]In the past technology, when the red eye phenomenon occurs, the pupil is a bright area, so it is impossible to use the dark area to detect the iris

Method used

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  • Eyelid detecting apparatus, eyelid detecting method and program thereof
  • Eyelid detecting apparatus, eyelid detecting method and program thereof
  • Eyelid detecting apparatus, eyelid detecting method and program thereof

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Embodiment Construction

[0047] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same or similar parts in the drawings are represented by the same symbols and will not be described repeatedly. FIG. 1 is a block diagram showing the configuration of an eyelid detection device according to an embodiment of the present invention. The eyelid detection device 1 of the present embodiment has a camera 2 (such as an image acquisition mechanism) that captures the driver's face and generates a facial image, an illumination light source 3 that illuminates the driver's face, an illuminance sensor 4 (such as an illuminance detection mechanism), A computer 10 that detects the driver's eyes, and a display device 7 connected to the computer 10 .

[0048] The camera 2 uses an imaging element such as a CCD (Charge Coupled Device), converts the image formed by the lens into an electrical signal, digitizes each pixel, and outputs image data. T...

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Abstract

The present invention provides an eyelid detection device capable of accurately detecting eyelids even when a red eye phenomenon occurs. The eyelid detection device (1) has a camera (2) and an image input unit (21) for acquiring facial images, a red-eye detection unit (25) for sensing the space of the iris portion from the facial images, and a red-eye detection unit (25) for detecting the red-eye phenomenon. Based on the light and dark boundary, that is, the edge detection of the candidate eyelid detection section (23) and the eyelid judgment section (27) of the upper eyelid and the lower eyelid, when the red eye phenomenon is detected by the red eye detection section (25), the red eye removal processing section (26) removes the red eye. The upper or lower edge of the pupil of the phenomenon is excluded from the lower or upper eyelid. A red-eye detection unit (25) detects a portion of a face image that matches a predetermined bright and dark pixel pattern or an edge pattern as a pupil of the red-eye phenomenon. The predetermined bright and dark pixel pattern is composed of a bright area at the center and dark areas arranged around it.

Description

technical field [0001] The present invention relates to an eyelid detection device for detecting upper and lower eyelids from a face image, an eyelid detection method and a program thereof. Background technique [0002] There are methods of judging the state of the eyes based on facial images, measuring the direction of the person's line of sight based on the obtained information, and estimating the degree of arousal of the person based on the degree of opening and closing of the eyelids. In order to judge the state of the eyes, it is necessary to correctly detect the eyes in the face image. In addition, in order to detect the degree of opening and closing of the eyelids, it is necessary to detect the eyelids correctly. [0003] For example, Patent Document 1 describes a technology for detecting an iris portion from a facial image to determine the state of a driver. In the technology of Patent Document 1, an area for detecting the iris portion is set in the face image, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/18A61B3/14
CPCA61B3/113A61B3/14A61B5/1176A61B5/18A61B5/163G06V40/193G06V20/59
Inventor 足立淳浅野义大上健一蜷川勇二小岛真一
Owner AISIN SEIKI KK
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