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公开(公告)号：US20140111632A1
公开(公告)日：2014-04-24
申请号：US14054724
申请日：2013-10-15
Applicant: PixArt Imaging Inc.
Inventor： Yu-Hao HUANG , Ming-Tsan KAO , Yi-Fang LEE , En-Feng HSU , Meng-Huan HSIEH , Nien-Tse CHEN
IPC: G06K9/00
CPC classification number: G06K9/00604 , G06F3/013 , H04N5/2354
Abstract: There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.
Abstract translation: 提供了一种包括主动光源，图像传感器和处理单元的光瞳跟踪装置。 主动光源以第一亮度值和第二亮度值交替地向眼球发光。 图像传感器捕获对应于第一亮度值的第一亮度图像和对应于第二亮度值的第二亮度图像。 处理单元将第一亮度图像和第二亮度图像的相应位置处的最亮区域识别为活动光图像。
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公开(公告)号：US20160370859A1
公开(公告)日：2016-12-22
申请号：US15253503
申请日：2016-08-31
Applicant: PIXART IMAGING INC.
Inventor： Yu-Hao HUANG , Ming-Tsan KAO , Yi-Fang LEE , En-Feng HSU , Meng-Huan HSIEH , Nien-Tse CHEN
CPC classification number: G06K9/00604 , G06F3/013 , H04N5/2354
Abstract: There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.
Abstract translation: 提供了一种包括主动光源，图像传感器和处理单元的光瞳跟踪装置。 主动光源以第一亮度值和第二亮度值交替地向眼球发光。 图像传感器捕获对应于第一亮度值的第一亮度图像和对应于第二亮度值的第二亮度图像。 处理单元将第一亮度图像和第二亮度图像的相应位置处的最亮区域识别为活动光图像。
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公开(公告)号：US20140022371A1
公开(公告)日：2014-01-23
申请号：US13934311
申请日：2013-07-03
Applicant: PixArt Imaging Inc.
Inventor： Yu-Hao HUANG , Yi-Fang LEE , Ming-Tsan KAO , Meng-Huan HSIEH , En-Feng HSU , Nien-Tse CHEN
IPC: H04N7/18
CPC classification number: H04N7/18 , G02B27/0093 , G06F3/013 , G06K9/00597
Abstract: A pupil detection device includes an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball. The image sensor captures at least one image frame of the eyeball to be served as an image to be identified. The processing unit is configured to calculate a minimum gray value in the image to be identified and to identify a plurality of pixels surrounding the minimum gray value and having gray values within a gray value range as a pupil area.
Abstract translation: 瞳孔检测装置包括主动光源，图像传感器和处理单元。 主动光源向眼球发光。 图像传感器捕获眼球的至少一个图像帧作为要识别的图像。 处理单元被配置为计算要识别的图像中的最小灰度值，并且识别周围最小灰度值的多个像素，并且具有作为瞳孔区域的灰度值范围内的灰度值。
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公开(公告)号：US20180160079A1
公开(公告)日：2018-06-07
申请号：US15886013
申请日：2018-02-01
Applicant: PixArt Imaging Inc.
Inventor： Yu-Hao HUANG , Yi-Fang LEE , Ming-Tsan KAO , Meng-Huan HSIEH , En-Feng HSU , Nien-Tse CHEN
CPC classification number: H04N7/18 , G02B27/0093 , G06F3/013 , G06K9/00597
Abstract: A pupil detection device includes an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball. The image sensor captures at least one image frame of the eyeball to be served as an image to be identified. The processing unit is configured to calculate a minimum gray value in the image to be identified and to identify a plurality of pixels surrounding the minimum gray value and having gray values within a gray value range as a pupil area.
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