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    • 3. 发明授权
    • Three-dimensional data generating device
    • 三维数据生成装置
    • US06943792B2
    • 2005-09-13
    • US10002148
    • 2001-12-05
    • Kuniteru Sakakibara
    • Kuniteru Sakakibara
    • G06T1/00G06T7/00G06T17/00
    • G06T7/593
    • A method of generating three-dimensional data includes the steps of inputting multiple images having a first resolution from different viewpoints of an object; storing the input multiple images; performing a resolution conversion of each of the input multiple images to generate converted images having a second resolution that is different than the first resolution; storing the converted images; detecting characteristic areas of the object from at least one of the input multiple images; and constructing three-dimensional data by using data from the input images for the characteristic areas of the object and by using data from the converted images for remaining areas of the object. A device for performing the method is also disclosed.
    • 一种生成三维数据的方法包括以下步骤:从对象的不同视点输入具有第一分辨率的多个图像; 存储输入的多个图像; 执行每个输入多个图像的分辨率转换以产生具有与第一分辨率不同的第二分辨率的转换图像; 存储转换的图像; 从所述输入多个图像中的至少一个检测所述对象的特征区域; 以及通过使用来自用于对象的特征区域的输入图像的数据和通过使用来自转换后的图像的数据的对象的剩余区域来构造三维数据。 还公开了一种用于执行该方法的装置。
    • 4. 发明授权
    • Image pickup system employing a three-dimensional reference object
    • 采用三维参考对象的摄像系统
    • US07423666B2
    • 2008-09-09
    • US10151184
    • 2002-05-20
    • Kuniteru SakakibaraEiro FujiiKoji Fujiwara
    • Kuniteru SakakibaraEiro FujiiKoji Fujiwara
    • H04N7/18H04N9/47H04N13/02H04N15/00H04N5/225G06T17/00
    • G06F3/011G01B11/24G01C11/02G06T7/74G06T7/80G06T2207/30208G06T2207/30244
    • The present invention provides a three-dimensional chart, a parameter acquiring method and an information processing device that are used for carrying out camera calibration in a wide range with high precision. For this reason, a plurality of unit graphic forms the sizes of which are coded by using different cross-ratios are placed on side faces of a three-dimensional chart. The cross-ratios of unit graphic forms are calculated from a picked-up image of the three-dimensional chart, and by collating these with actual values, the position and orientation of the image-pickup point are determined. The shifting average of the heights of the unit graphic forms is made approximately proportional to the distance from the apex so that it is possible to reduce the limitation of image-pickup distances. A movable camera is attached to a subject-use camera, and upon picking up an image of the subject, an image of the three-dimensional chart is also picked up simultaneously. Based upon the position and orientation of the movable camera found out by the above-mentioned sequence of image-pickup processes and the relative position and orientation between the two cameras that have been preliminarily found, it is possible to determine the position and orientation of the subject-use camera.
    • 本发明提供一种三维图形,参数获取方法和信息处理装置,其用于以高精度执行大范围的相机校准。 因此,通过使用不同的交比来对其尺寸进行编码的多个单位图形被放置在三维图表的侧面上。 单位图形的交叉比由三维图的拾取图像计算,并且通过将这些与实际值对照,确定图像拾取点的位置和取向。 将单位图形的高度的偏移平均值与距顶点的距离近似成比例,从而可以减小图像拾取距离的限制。 可移动照相机附接到被摄体照相机,并且在拾取被摄体的图像时,同时拾取三维图形的图像。 基于通过上述图像拾取处理顺序发现的可移动照相机的位置和取向以及已经预先找到的两个照相机之间的相对位置和取向,可以确定位置和方向 主题使用相机。