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公开(公告)号：US20180089508A1
公开(公告)日：2018-03-29
申请号：US15814558
申请日：2017-11-16
Inventor： SOICHI KIMURA , HIDETOSHI TAKEDA , SHINGO YAMAZOE
IPC: G06K9/00
CPC classification number: G06K9/00604 , A61B3/113 , B60R11/02 , B60R11/04 , G06F3/013 , G06F3/0304 , G06K9/00255 , G06K9/0061
Abstract: A visual line measuring device of the present disclosure includes a light source that emits light for forming a corneal reflection point on an eyeball of an object person who gazes at a predetermined gaze point, an image-capturing part that captures a plurality of facial images each of which includes the eyeball of the object person by which the light from the light source is reflected, a detector that calculates visual line information for each of the facial images captured by the image-capturing part, a calculation part that calculates correction information by using at least two sets of the visual line information being in a predetermined positional relation among a plurality of sets of the visual line information calculated by the detector, and a correction part that corrects the visual line information calculated by the detector, by using the correction information.
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公开(公告)号：US20190025912A1
公开(公告)日：2019-01-24
申请号：US16069904
申请日：2017-02-13
Inventor： SOICHI KIMURA , HIDETOSHI TAKEDA , SHINGO YAMAZOE
Abstract: An eye tracking method in the disclosure comprises an image-capturing step of capturing a facial image including an eyeball of an object person, light from a light source that emits the light to form a corneal reflex point on the eyeball of the object person who gazes at a predetermined gaze point being reflected from the eyeball, a detecting step of calculating visual line information in a world coordinate system using the facial image captured in the image-capturing step and a correcting step of transforming the visual line information in the world coordinate system calculated in the detecting step into visual line information in a correction coordinate system that is a coordinate system different from the world coordinate system, and correcting the visual line information in the correction coordinate system using correction information for correcting a detection error caused by an individual difference of the eyeball.
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3.发明申请公开(公告)号：US20160042240A1
公开(公告)日：2016-02-11
申请号：US14886188
申请日：2015-10-19
Inventor： HIDETOSHI TAKEDA , MASAYUKI KIMURA
IPC: G06K9/00
CPC classification number: G06K9/00845 , A61B3/113 , A61B5/18 , G06K9/00597 , G06K9/0061 , G06T7/73 , G06T2207/10021 , G06T2207/10048 , G06T2207/30201 , G06T2207/30268 , G08G1/16
Abstract: A gaze direction detection device according to the present technology includes a detector for detecting a gaze of a driver over a predetermined period of time, a determiner for outputting second gaze information indicating that the driver is gazing, from first gaze information detected by the detector, a generator for generating a gaze distribution from the second gaze information output by the determiner, and a corrector for correcting the first gaze information detected by the detector, where the corrector calculates a center of a reference distribution that is set in advance and a center of the gaze distribution generated by the generator, and causes the center of the reference distribution and the center of the gaze distribution to overlap each other, and then calculates a correction parameter based on a difference between the reference distribution and the gaze distribution, and corrects the first gaze information with the correction parameter.
Abstract translation: 根据本技术的注视方向检测装置包括：用于在预定时间段内检测驾驶员的视线的检测器，用于从由检测器检测的第一注视信息输出指示驾驶员注视的第二凝视信息的确定器， 用于由所述确定器输出的所述第二凝视信息产生凝视分布的发生器，以及用于校正由所述检测器检测到的所述第一凝视信息的校正器，其中所述校正器计算预先设定的参考分布的中心， 由发生器产生的注视分布，并引起参考分布的中心和注视分布的中心彼此重叠，然后基于参考分布和注视分布之间的差来计算校正参数，并且校正 首先注视信息与校正参数。
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