-
公开(公告)号：US20210180944A1
公开(公告)日：2021-06-17
申请号：US17267933
申请日：2019-08-09
Inventor： Hideyuki Tanaka
IPC: G01B11/26
Abstract: In order to provide a means to uniquely estimate the attitude in a wider range of angles to thereby realize a more accurate attitude estimate, a planar marker is provided. The planar marker includes a planar visual marker having a two-dimensional pattern code and at least two attitude inversion detection patterns Fx and Fy each consisting of a transparent cylindrical body having a pattern on the side face within the range of 180 degrees around the central axis ra and being provided so as to be orthogonal to each other on the same plane as that of planar visual marker. A marker is provided that includes at least one attitude inversion detection pattern. The attitude inversion detection pattern consists of the planar visual marker and a transparent spherical body having a pattern on a hemispherical surface and is provided on the same plane as that of the planar visual marker.
-
公开(公告)号：US09495749B2
公开(公告)日：2016-11-15
申请号：US13918605
申请日：2013-06-14
Inventor： Hideyuki Tanaka , Yasushi Sumi , Yoshio Matsumoto
CPC classification number: G06T7/0044 , G06K9/3216 , G06K2009/3225 , G06T7/74 , G06T2207/30204
Abstract: A pose detecting system includes: a marker using a microlens array; a camera; and a computer receiving a marker image. The marker includes: a lens area constituted of the microlens array and a mark array having a plurality of marks arrayed with a pitch similar to that between a plurality of lenses constituting the microlens array so as to produce a moiré pattern; and four reference points. The computer performs: determining the pose of the marker based on the four reference points; analyzing the moiré pattern so as to calculate an angle formed by the marker and a straight line connecting the center of an integrated mark that emerges at the lens area as the moiré pattern and is similar in shape to each of the plurality of marks to a viewpoint at the marker; and correcting the pose of the marker by using the angle.
Abstract translation: 姿态检测系统包括：使用微透镜阵列的标记; 相机; 和接收标记图像的计算机。 标记包括：由微透镜阵列构成的透镜区域和具有多个标记排列的标记阵列，该多个标记排列成类似于构成微透镜阵列的多个透镜之间的间距，以产生莫尔图案; 和四个参考点。 计算机执行：基于四个参考点确定标记的姿态; 分析莫尔图案，以计算由标记形成的角度和将出现在透镜区域处的集成标记的中心作为莫尔图案并且形状与多个标记中的每一个相连接的视点的直线 在标记处 并且通过使用角度来校正标记的姿态。
-
Patent Agency Ranking
公开(公告)号：US10262429B2
公开(公告)日：2019-04-16
申请号：US15025102
申请日：2014-09-08
Inventor： Hideyuki Tanaka
Abstract: The marker has thereon one three-dimensional indicator 3. Based on the location and height of the three-dimensional indicator 3 relative to the plane indicator 2 as well as the estimated position of the camera relative to the marker, the center positions of the upper face and the lower face of the three-dimensional indicator 3 on the image of the camera are estimated. The estimated center position of the upper face of the three-dimensional indicator 3 is compared with that detected from the image. When the error between them has a value equal to or higher than a predetermined value, based on the posture estimated, a rotational transformation is carried out.
-
公开(公告)号：US20160239952A1
公开(公告)日：2016-08-18
申请号：US15025102
申请日：2014-09-08
Inventor： Hideyuki Tanaka
CPC classification number: G06T7/60 , G01D5/26 , G06T7/70 , G06T7/74 , G06T2200/04 , G06T2207/30204 , G06T2207/30244
Abstract: The marker has thereon one three-dimensional indicator 3. Based on the location and height of the three-dimensional indicator 3 relative to the plane indicator 2 as well as the estimated position of the camera relative to the marker, the center positions of the upper face and the lower face of the three-dimensional indicator 3 on the image of the camera are estimated. The estimated center position of the upper face of the three-dimensional indicator 3 is compared with that detected from the image. When the error between them has a value equal to or higher than a predetermined value, based on the posture estimated, a rotational transformation is carried out.
Abstract translation: 标记器上具有一个三维指示器3.基于三维指示器3相对于平面指示器2的位置和高度以及相机相对于标记器的估计位置，上部的中心位置 估计相机图像上的三维指示器3的面部和下面。 将三维指示器3的上表面的估计中心位置与从图像检测到的中心位置进行比较。 当它们之间的误差具有等于或高于预定值的值时，基于估计的姿态，执行旋转变换。
-
公开(公告)号：US20200011660A1
公开(公告)日：2020-01-09
申请号：US16468208
申请日：2017-10-26
Inventor： Hideyuki Tanaka
Abstract: Provided are a marker that enables, within a smaller area size, measurement of the position or the attitude of an object, and a marker manufacturing method. The marker is provided with a variable moire pattern 3 that includes a striped pattern 9 which is formed on a two-dimensional plane and a lens array 7 in which a plurality of lenses are arranged on the two-dimensional plane on which the striped pattern 9 is formed.
-
公开(公告)号：US11378392B2
公开(公告)日：2022-07-05
申请号：US17267933
申请日：2019-08-09
Inventor： Hideyuki Tanaka
IPC: G01B11/26
Abstract: In order to provide a means to uniquely estimate the attitude in a wider range of angles to thereby realize a more accurate attitude estimate, a planar marker is provided. The planar marker includes a planar visual marker having a two-dimensional pattern code and at least two attitude inversion detection patterns Fx and Fy each consisting of a transparent cylindrical body having a pattern on the side face within the range of 180 degrees around the central axis ra and being provided so as to be orthogonal to each other on the same plane as that of planar visual marker. A marker is provided that includes at least one attitude inversion detection pattern. The attitude inversion detection pattern consists of the planar visual marker and a transparent spherical body having a pattern on a hemispherical surface and is provided on the same plane as that of the planar visual marker.
-
公开(公告)号：US11030770B2
公开(公告)日：2021-06-08
申请号：US16332733
申请日：2017-09-05
Inventor： Hideyuki Tanaka
Abstract: The present invention provides a marker that can uniquely estimate the posture within wide-angle range while maintaining the flatness, and a posture estimating method. The marker includes a two-dimensional pattern code and a posture detection pattern emitting different light depending on an observation direction of the pattern code at around the first axis on a two-dimensional plane formed by the pattern code. The method using the marker has a Step-1 of using a captured image of the marker to identify a color of the light or a pattern drawn by the light, Step-2 of determining, depending on the color or the pattern identified in Step-1, a posture of the marker at around the first axis, and a Step-3 of determining a posture of the marker depending on a positional relation between the posture at around the first axis determined in Step-2 and the elements constituting the captured image.
-
-
-
-
-
-
Search Results
7
records
(took 0.018 seconds)
