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公开(公告)号:US20120014610A1
公开(公告)日:2012-01-19
申请号:US13259065
申请日:2010-03-26
申请人: Satoru Nakashi , Yoshiki Ninomiya , Takashi Naito , Shinichi Kojima , Yoshinao Takemae , Takuhiro Omi , Jun Adachi , Takashi Hiramaki
发明人: Satoru Nakashi , Yoshiki Ninomiya , Takashi Naito , Shinichi Kojima , Yoshinao Takemae , Takuhiro Omi , Jun Adachi , Takashi Hiramaki
IPC分类号: G06K9/46
CPC分类号: G06K9/00281 , G06T7/73
摘要: Detecting with good precision an eye inside corner position and an eye outside corner position as face feature points even when the eye inside corner and/or the eye outside corner portions are obscured by noise. First eyelid profile modeling is performed with a Bezier curve expressed by a fixed control point P3 indicating an eye inside corner first position detected in an image, a fixed control point P4 indicating an eye outside corner first position, a control point P1 corresponding to an upper eyelid position candidate (first parameter), and a control point P2 corresponding to a lower eyelid position candidate (second parameter). Then in a second eyelid profile model with fixed P1 and P2 of the first eyelid profile model having the highest fitting evaluation value λ to the eyelid profile in the image, the values of a control point P3 indicating an eye inside corner position candidate (third parameter) and a control point P4 indicating an eye outside corner candidate (fourth parameter) at a maximum of a fitting evaluation value λ when changing the values of the control point P3 and control point P4 are determined as an eye inside corner second position and an eye outside corner second position, respectively.
摘要翻译: 即使当角落内部的眼睛和/或眼睛的外角部被噪声遮蔽时,以高精度检测眼内角位置和眼外角位置作为面部特征点。 用固定控制点P3表示的Bezier曲线进行第一次眼皮轮廓建模,所述固定控制点P3表示在图像中检测到的角内第一位置内的眼睛,指示眼睛外角角位置的眼睛的固定控制点P4,对应于上部 眼睑位置候选(第一参数)和对应于下眼睑位置候选的控制点P2(第二参数)。 然后,在具有对图像中的眼睑轮廓具有最高拟合评估值λ的第一眼睑轮廓模型的具有固定的P1和P2的第二眼睑轮廓模型中,指示角内位置候选中的眼睛的控制点P3的值(第三参数 )和将控制点P3和控制点P4的值改变时,以拟合评估值λ的最大值指示眼睛外角候选(第四参数)的控制点P4被确定为眼角内第二位置和眼睛 外角第二位。
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公开(公告)号:US20110235919A1
公开(公告)日:2011-09-29
申请号:US13121125
申请日:2009-12-02
IPC分类号: G06K9/46
摘要: A computer (30) obtains a facial image acquired by picking up an image of a person subjected to image pickup from a camera (10), and estimates a facial expression of the person subjected to image pickup based on the obtained facial image. Next, the computer obtains an eye open level of the person subjected to image pickup based on the facial image, and sets a threshold of the eye open level based on the estimated facial expression of the person subjected to image pickup. When the eye open level exceeds the threshold, the computer (30) determines that the eye of the person subjected to image pickup is opened. Moreover, when the eye open level does not exceed the threshold, the computer determines that the eye of the person subjected to image pickup is closed.
摘要翻译: 计算机(30)通过从摄像机(10)拾取被摄取的人的图像来获取所获取的面部图像,并且基于所获得的面部图像估计受到图像拾取的人的面部表情。 接下来,计算机基于面部图像获得进行图像摄取的人的开放水平,并且基于经过图像拾取的人的估计的面部表情来设置眼睛开放水平的阈值。 当眼睛打开水平超过阈值时,计算机(30)确定遭受图像拾取的人的眼睛被打开。 此外,当眼睛打开水平不超过阈值时,计算机确定被摄取的人的眼睛被关闭。
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公开(公告)号:US20100014759A1
公开(公告)日:2010-01-21
申请号:US12517509
申请日:2007-12-03
申请人: Tomoharu Suzuki , Takashi Hiramaki , Kenichi Ohue , Kentaro Takahashi , Satoru Nakanishi , Shinichi Kojima
发明人: Tomoharu Suzuki , Takashi Hiramaki , Kenichi Ohue , Kentaro Takahashi , Satoru Nakanishi , Shinichi Kojima
IPC分类号: G06K9/46
CPC分类号: G06K9/00248 , G06K9/00597
摘要: An eye part detecting device has an image input section (21) for acquiring a face image, an eyelid edge labeling section (24) for detecting upper eyelid candidates and lower eyelid candidates which satisfy predetermined conditions for upper eyelids or lower eyelids in the face image, and an eyelid determination section (27) for comparing combinations of the upper and lower eyelid candidates to determine the combination of the upper and lower eyelid candidates whose relation best satisfies a predetermined condition as the upper and lower eyelids. The eyelid edge labeling section (24) classifies the horizontal edges and vertical edges calculated by an edge calculating section (23) into the upper eyelid candidates and the lower eyelid candidates according to a degree of how well the predetermined conditions are satisfied. A lower eyelid candidate evaluating section (26) may be provided for excluding a lower eyelid candidate when it has at least one horizontal edge present in a lateral direction of the lower eyelid candidate. A lower eyelid candidate discriminating section (25) may be provided for discriminating that of the lower eyelid candidates whose vertical edge does not satisfy the predetermined condition as a lower eyelid preliminary candidate.
摘要翻译: 眼部检测装置具有用于获取面部图像的图像输入部(21),用于检测上眼睑候选的眼睑边缘标签部(24)和满足面部图像中的上眼睑或下眼睑的预定条件的下眼睑候选 以及用于比较上眼睑和下眼睑候选的组合的眼睑确定部(27),以确定其最佳满足预定条件的上眼睑候选物和下眼睑候选物的组合作为上眼睑和下眼睑。 眼睑边缘标签部(24)根据预定条件的满足程度将由边缘计算部(23)计算出的水平边缘和垂直边缘分类为上眼睑候选和下眼睑候选。 可以提供下眼睑候选评价部(26),用于当下眼睑候选者具有存在于下眼睑候选物的横向方向上的至少一个水平边缘时排除下眼睑候选。 可以提供下眼睑候选鉴别部(25),用于将垂直边缘不满足预定条件的下眼睑候选物的下眼皮预备候选区分开。
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公开(公告)号:US20080212850A1
公开(公告)日:2008-09-04
申请号:US12026959
申请日:2008-02-06
申请人: Jun Adachi , Yukihiko Yoshinaga , Tomoharu Suzuki , Takashi Hiramaki , Kenichi Ogawa , Kenichi Ohue , Kentaro Takahashi , Shigeyasu Uozumi , Shinichi Kojima , Satoru Nakanishi
发明人: Jun Adachi , Yukihiko Yoshinaga , Tomoharu Suzuki , Takashi Hiramaki , Kenichi Ogawa , Kenichi Ohue , Kentaro Takahashi , Shigeyasu Uozumi , Shinichi Kojima , Satoru Nakanishi
IPC分类号: G06K9/00
CPC分类号: A61B3/113 , G06K9/00248 , G06K9/00604
摘要: An eyelid detection apparatus includes a face image storing means storing a plurality of face images of a subject captured at different timings, a change detecting means detecting changes in each face image caused by blinking after processing the plurality of face images stored by the face image storing means, and an eyelid detecting means detecting a position of an eyelid of the subject based on the changes detected by the change detecting means.
摘要翻译: 一种眼睑检测装置,包括:存储以不同时刻拍摄的被检体的多个脸部图像的面部图像存储单元;变更检测单元,检测由所述面部图像存储部存储的多个面部图像处理后的闪烁引起的每个面部图像的变化 以及眼睑检测装置,其基于由变化检测装置检测到的变化来检测被检体的眼睑的位置。
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