公开(公告)号：US20110293180A1

公开(公告)日：2011-12-01

申请号：US12790026

申请日：2010-05-28

申请人： Antonio Criminisi ,  Jamie Daniel Joseph Shotton ,  Andrew Fitzgibbon ,  Toby Sharp ,  Matthew Darius Cook

发明人： Antonio Criminisi ,  Jamie Daniel Joseph Shotton ,  Andrew Fitzgibbon ,  Toby Sharp ,  Matthew Darius Cook

IPC分类号： G06K9/34 ,  H04N13/02

CPC分类号： G06K9/34 ,  G06K9/38 ,  G06T7/11 ,  G06T7/168 ,  G06T7/187 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/20048 ,  G06T2207/20156 ,  G06T2207/30196 ,  H04N13/239

摘要： Foreground and background image segmentation is described. In an example, a seed region is selected in a foreground portion of an image, and a geodesic distance is calculated from each image element to the seed region. A subset of the image elements having a geodesic distance less than a threshold is determined, and this subset of image elements are labeled as foreground. In another example, an image element from an image showing at least a user, a foreground object in proximity to the user, and a background is applied to trained decision trees to obtain probabilities of the image element representing one of these items, and a corresponding classification assigned to the image element. This is repeated for each image element. Image elements classified as belonging to the user are labeled as foreground, and image elements classified as foreground objects or background are labeled as background.

摘要翻译： 描述了前景和背景图像分割。 在一个示例中，在图像的前景部分中选择种子区域，并且从每个图像元素计算到种子区域的测地距离。 确定具有小于阈值的测地距离的图像元素的子集，并且该图像元素的子集被标记为前景。 在另一示例中，将来自显示至少用户的图像，邻近用户的前景对象和背景的图像元素应用于经过训练的决策树，以获得表示这些项目之一的图像元素的概率，以及相应的 分类到图像元素的分类。 对于每个图像元素重复这一点。 分类为属于用户的图像元素被标记为前景，并且被分类为前景对象或背景的图像元素被标记为背景。