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1. 发明专利

JP2004132831A Method and apparatus for measuring rotating and flying characteristics of sphere 有权
标题翻译：用于测量球形旋转和飞行特性的方法和装置
公开(公告)号：JP2004132831A
公开(公告)日：2004-04-30
申请号：JP2002297580
申请日：2002-10-10
申请人： Mitsunori Miki , Sumitomo Rubber Ind Ltd , 三木光範 , 住友ゴム工業株式会社
发明人： UEDA KATSUHIKO , ONUKI MASAHIDE , MIKI MITSUNORI
IPC分类号： A63B47/00 , G01B11/00 , G01B11/26 , G06T1/00 , G06T3/20 , G06T3/60 , G06T7/00 , G06T7/20 , G06T7/60 , G06T17/40
CPC分类号： G06T7/20 , G06T7/74
摘要： PROBLEM TO BE SOLVED: To accurately measure rotating and flying characteristics of a rotating sphere flying by use of a computer.
SOLUTION: In the method for measuring the flying characteristic, reference attitude and position of a virtual sphere is set, and the relationship between a three-dimensional coordinate and a two-dimensional coordinate is previously derived using at least one photographing means. Using this relationship, a marked position of the virtual sphere on the three-dimensional coordinate is converted to a position on the two-dimensional image to obtain a two-dimensional virtual marked position. A two-dimensional image marked position of the sphere present on the two-dimensional coordinate is further obtained. The attitude and position of the virtual sphere is controlled with respect to the reference attitude and position so as to match the virtual marked position and the image marked position. Based on the amount of the attitude and position controls, the three-dimensional attitude and position of the sphere is specified. The rotating and flying characteristics of the sphere is calculated from the difference in the three-dimensional attitude and position beween one time and another time.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：准确测量使用计算机飞行的旋转球的旋转和飞行特性。解决方案：在用于测量飞行特性的方法中，设置虚拟球体的参考姿态和位置，并且使用至少一个拍摄装置预先导出三维坐标与二维坐标之间的关系。使用该关系，将三维坐标上的虚拟球体的标记位置转换为二维图像上的位置，以获得二维虚拟标记位置。进一步获得二维坐标上存在的球体二维图像标记位置。相对于参考姿态和位置来控制虚拟球的姿态和位置，以便匹配虚拟标记位置和图像标记位置。根据姿态和位置控制的数量，确定球体的三维姿态和位置。球体的旋转和飞行特性根据三维姿态和位置之间的差异计算出来。版权所有（C）2004，JPO

2. 发明专利

JP2004061483A Method and instrument for measuring rotation quantity and rotary axis direction of curved surface body, and method of specifying three-dimensional posture of curved surface body 有权
公开(公告)号：JP2004061483A
公开(公告)日：2004-02-26
申请号：JP2002297939
申请日：2002-10-10
申请人： Mitsunori Miki , Sumitomo Rubber Ind Ltd , 三木光範 , 住友ゴム工業株式会社
发明人： UEDA KATSUHIKO , ONUKI MASAHIDE , MIKI MITSUNORI
IPC分类号： G01B11/26 , G06K9/32 , G06K9/36 , G06T1/00 , G06T7/00 , G06T7/60 , G06T17/40
CPC分类号： G06K9/32 , G06K2009/3225 , G06T7/74
摘要： PROBLEM TO BE SOLVED: To precisely find the rotation quantity and a rotary axis direction of a curved surface body.
SOLUTION: The rotating curved surface body A imparted a plurality of marks on its surface is photographed at a plurality of times with a prescribed time interval to obtain a plurality of two-dimensional images of the body A, an imaginary curved surface body B imparted a plurality of marks on its surface the same as the body A hereinbefore is prepared by a computer on a three-dimensional coordinate space, an optional posture of the body B is set as a reference posture, the body B is observed from an optional view point direction, the body B is posture-displacement-operated by the computer to conform to the marks on the surface of the body B with the marks in the respective two-dimensional images of the body A, a three-dimensional posture of the body A is specified for every two-dimensional image of the body A, based on the amount of the posture displacement operation with respect to the reference posture after the posture displacement operation, and a rotation matrix as to a rotation operation is calculated when the three-dimensional posture at a time specified for every two-dimensional image is made consistent with the three-dimensional posture at another time, so as to find the rotation quantity and the rotary axis direction of the curved surface body A.
COPYRIGHT: (C)2004,JPO

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