公开(公告)号：US20160042240A1

公开(公告)日：2016-02-11

申请号：US14886188

申请日：2015-10-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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。

公开(公告)号：US20180182113A1

公开(公告)日：2018-06-28

申请号：US15892666

申请日：2018-02-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAYUKI KIMURA

IPC: G06T7/536 ,  G06K9/00

Abstract: Image processing device (100) includes range image obtaining unit (110), reference surface detector (130), object region detector (140), depth calculator (150), and grouping unit (160). Range image obtaining unit (110) obtains a range image. Reference surface detector (130) detects a reference surface having a predetermined height in the range image. Object region detector (140) detects an object region existing on the reference surface. Depth calculator (150) decides a depth in each vertical line of the object region. Grouping unit (160) calculates a change amount of depth between adjacent vertical lines in the object region, groups a set of vertical lines in which the change amount of depth is less than or equal to a predetermined threshold, and describes each group in a predetermined data format.

公开(公告)号：US20160066782A1

公开(公告)日：2016-03-10

申请号：US14940847

申请日：2015-11-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAYUKI KIMURA ,  TADASHI SHIBATA

IPC: A61B3/113 ,  A61B5/00 ,  A61B3/00 ,  A61B3/14

CPC classification number: A61B3/113 ,  A61B3/0025 ,  A61B3/145 ,  A61B5/0077 ,  A61B2560/0223 ,  G06F3/012 ,  G06F3/013 ,  G06K9/00248 ,  G06K9/00604

Abstract: A detector detects head postures and gaze directions from images of a person to be measured captured by an imaging unit; a generation unit generates a gaze direction distribution with respect to each of the head postures, from the head postures and the gaze directions detected by the detector; a calibration unit determines predetermined one of the head postures as a reference posture, and calculates calibration parameters to be used to calibrate the gaze direction distribution with respect to the reference posture; and a correction unit corrects the gaze direction distributions with respect to the head postures other than the reference posture by using the calibration parameters calculated by the calibration unit. This reduces the influence on the calibration which may vary due to change in the head posture.

Abstract translation: 检测器从成像单元拍摄的被测量人物的图像检测头部姿势和注视方向; 生成单元从头部姿势和由检测器检测的凝视方向相对于头部姿势中的每一个产生视线方向分布; 校正单元确定头部姿势中的预定的一个作为参考姿势，并且计算用于校准相对于参考姿势的视线方向分布的校准参数; 并且校正单元通过使用由校准单元计算的校准参数来校正相对于参考姿势以外的头部姿势的注视方向分布。 这减少了由于头部​​姿势的变化而可能变化的对校准的影响。