公开(公告)号：US20110090252A1

公开(公告)日：2011-04-21

申请号：US12905649

申请日：2010-10-15

申请人： Suk June YOON ,  Kyung Shik Roh ,  Seung Yong Hyung ,  Sung Hwa Ahn

发明人： Suk June YOON ,  Kyung Shik Roh ,  Seung Yong Hyung ,  Sung Hwa Ahn

IPC分类号： G09G5/00

CPC分类号： G06T19/006 ,  G06T7/246 ,  G06T2207/10016

摘要： Disclosed herein are a markerless augmented reality system and method for extracting feature points within an image and providing augmented reality using a projective invariant of the feature points. The feature points are tracked in two images photographed while varying the position of an image acquisition unit, a set of feature points satisfying a plane projective invariant is obtained from the feature points, and augmented reality is provided based on the set of feature points. Accordingly, since the set of feature points satisfies the plane projective invariant even when the image acquisition unit is moved and functions as a marker, a separate marker is unnecessary. In addition, since augmented reality is provided based on the set of feature points, a total computation amount is decreased and augmented reality is more efficiently provided.

摘要翻译： 这里公开了一种无标记增强现实系统和方法，用于提取图像内的特征点，并使用特征点的投影不变量提供增强现实。 在改变图像获取单元的位置的同时拍摄的两幅图像中跟踪特征点，从特征点获得满足平面投影不变性的一组特征点，并且基于特征点集合提供增强现实。 因此，即使图像获取单元被移动并用作标记，由于特征点集合满足平面投影不变性，因此不需要单独的标记。 此外，由于基于特征点集合提供增强现实，所以总计算量减少，增强现实更有效地提供。

公开(公告)号：US08791960B2

公开(公告)日：2014-07-29

申请号：US12905649

申请日：2010-10-15

申请人： Suk June Yoon ,  Kyung Shik Roh ,  Seung Yong Hyung ,  Sung Hwa Ahn

发明人： Suk June Yoon ,  Kyung Shik Roh ,  Seung Yong Hyung ,  Sung Hwa Ahn

IPC分类号： G09G5/00

CPC分类号： G06T19/006 ,  G06T7/246 ,  G06T2207/10016

摘要： Disclosed herein are a markerless augmented reality system and method for extracting feature points within an image and providing augmented reality using a projective invariant of the feature points. The feature points are tracked in two images photographed while varying the position of an image unit, a set of feature points satisfying a plane projective invariant is obtained from the feature points, and augmented reality is provided based on the set of feature points. Accordingly, since the set of feature points satisfies the plane projective invariant even when the image unit is moved and functions as a marker, a separate marker is unnecessary. In addition, since augmented reality is provided based on the set of feature points, a total computation amount is decreased and augmented reality is more efficiently provided.

摘要翻译： 这里公开了一种无标记增强现实系统和方法，用于提取图像内的特征点，并使用特征点的投影不变量提供增强现实。 在改变图像单元的位置的同时拍摄的两幅图像中跟踪特征点，从特征点获得满足平面投影不变性的一组特征点，并且基于该特征点集提供增强现实。 因此，即使当图像单元被移动并用作标记时，由于特征点集合满足平面投影不变性，因此不需要单独的标记。 此外，由于基于特征点集合提供增强现实，所以总计算量减少，增强现实更有效地提供。