公开(公告)号：US20140160247A1

公开(公告)日：2014-06-12

申请号：US13712679

申请日：2012-12-12

申请人： JIANBO SHI ,  DANIEL C. MIDDLETON

发明人： JIANBO SHI ,  DANIEL C. MIDDLETON

IPC分类号： G06T15/04 ,  H04N13/02

CPC分类号： H04N13/239 ,  G06T7/97 ,  G06T2207/20016 ,  G06T2207/20064 ,  H04N13/243 ,  H04N2013/0081

摘要： Various embodiments are generally directed to repeated use of wavelet filters with different directional orientations each time to detect distances to edges in different directions in deriving a disparity map from multiple image bitmaps. A method includes subjecting an image bitmap to a first-order wavelet filter a selected number of times, an orientation of the first-order wavelet filter altered each time to create a first set of intermediate maps; and subjecting the first image bitmap to a second-order wavelet filter the selected number of times, an orientation of the second-order wavelet filter altered each time to create a second set of intermediate maps; the first-order and second-order wavelet filters, as well as their orientations, selected to be mathematically related such that the first-order wavelet filter approximates a sine function and the second-order wavelet filter approximates a related cosine function, both masked by a Gaussian. Other embodiments are described and claimed.

摘要翻译： 各种实施例通常涉及每次重复使用具有不同方向取向的小波滤波器，以在从多个图像位图导出视差图时检测到不同方向上的边缘的距离。 一种方法包括将图像位图经受选定次数的一阶小波滤波器，每次改变一阶小波滤波器的取向以创建第一组中间图; 并且将所述第一图像位图经过所选次数的二阶小波滤波器，每次改变所述二阶小波滤波器的方向以创建第二组中间图; 一阶和二阶小波滤波器以及它们的取向被选择为在数学上相关，使得一阶小波滤波器近似于正弦函数，二阶小波滤波器近似相关余弦函数，两者都被 一个高斯 描述和要求保护其他实施例。