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    • 4. 发明公开
    • Pointing device using the image of the hand
    • Hinweisvorrichtung,die das Bild einer Hand verwendet
    • EP1329838A2
    • 2003-07-23
    • EP03008193.9
    • 1998-03-18
    • TAKENAKA CORPORATION
    • The designation of the inventor has not yet been filed
    • G06K11/08G06F3/033
    • G06F3/011A63F2300/1087G06F3/0304G06K9/00335
    • Over an information input space to which an information inputting person comes, a pair of near-infrared light illuminators are arranged in such a manner that the illumination ranges thereof are adjusted so as to illuminate the information inputting person from different directions. A pair of near-infrared-light-sensitive video cameras are also arranged in different positions so as to correspond to the illuminators. The image pickup range of the video cameras is adjusted so that it is out of the range on the floor surface illuminated by the corresponding illuminator, while the information inputting person is within the image pickup range. A controller allows one illuminator at a time to be switched on/off. An image of the information inputting person is picked up by the video camera corresponding to the switched-on illuminator. The information inputting person is extracted based on the images picked up by the video cameras, whereby the position or direction pointed to by the information inputting person is determined.
    • 手指装置(20)包括:用于照亮被识别的人的照明装置(32A,32B); 用于拾取所述人物(10)的图像的多个图像拾取装置(36A,36B); 确定器(22D,14),用于从由所述图像拾取装置(36A,36B)拾取的情况的多个图像中提取与所述人物(10)相对应的图像部分,所述情况指示所述人指向 一个职位或一个方向,以及用于确定该人指定的职位或方向之一; 检测器(1),用于从所述多个图像中提取与所述人体(10)的身体的预定部分相对应的图像部分,并且计算所提取的图像部分的区域中的至少一个,所提取的轮廓 图像部分和所提取的图像部分的轮廓的长度,以便在经过预定时间之后获得第一计算值,重复所述计算,以获得第二计算值,并检测第一计算值和 第二计算值; 以及当由所述检测器检测到的变化值大于或等于预定值时执行预定处理的处理器。
    • 7. 发明公开
    • Hand pointing apparatus
    • Handzeigegerät
    • EP0913790A1
    • 1999-05-06
    • EP98120405.0
    • 1998-10-28
    • TAKENAKA CORPORATION
    • Harakawa, Kenichi, Technical Lab. Takenaka Corp.
    • G06K11/08G06F3/00
    • G06F3/011A63F2300/1087G06F3/0304
    • An image which represents a 3-D space virtually using a perspective method is displayed on a display, and an image of an information inputting person is picked up by a plurality of video cameras from different directions. While the information inputting person is pointing at an arbitrary position within a virtual 3-D space represented by the displayed image, a reference point which corresponds to the back of the information inputting person and a characteristic point which corresponds to a finger tip are respectively extracted from a plurality of images which are picked up by each of the video cameras, and the 3-D coordinates of these points are determined. The direction in which the position pointed to by the information inputting person is disposed within the virtual 3-D space is determined on the basis of the direction from the reference point to the characteristic point, and the distance between the information inputting person and the position pointed to by the information inputting person within the virtual 3-D space is determined on the basis of the distance between the reference point and the characteristic point. As a result, the 3-D coordinates of the position pointed to by the information inputting person within the virtual 3-D space can be determined.
    • 在显示器上显示实际上使用透视方法表示3-D空间的图像,并且由多个摄像机从不同方向拾取信息输入人物的图像。 当信息输入人员指向由显示图像表示的虚拟3-D空间内的任意位置时,分别提取对应于信息输入人物的背面的参考点和对应于指尖的特征点 从由摄像机中的每一个拍摄的多个图像中,确定这些点的3维坐标。 基于从参考点到特征点的方向,信息输入人员与位置之间的距离,确定信息输入人员指向的位置的方向在虚拟3-D空间内 基于参考点和特征点之间的距离来确定虚拟3-D空间内的信息输入人员指向的内容。 结果,可以确定信息输入人员在虚拟3-D空间内指向的位置的3维坐标。