公开(公告)号：US20090208108A1

公开(公告)日：2009-08-20

申请号：US11577919

申请日：2005-11-04

申请人： Mihoko Shimano ,  Etsuko Nagao ,  Kenji Nagao

发明人： Mihoko Shimano ,  Etsuko Nagao ,  Kenji Nagao

IPC分类号： G06K9/46 ,  G06K9/36 ,  G06K9/68

CPC分类号： G06T5/008 ,  G06K9/00288 ,  G06K9/4661 ,  G06T5/50 ,  G06T2207/20221

摘要： A normal line information estimation device for estimating normal line information of an object from an image of the object. The normal line information estimation device includes an illumination direction estimation section for estimating an illumination direction with respect to the object in the image from a luminance value of the image; a normal line information estimation section for estimating the normal line information of the object in the image based on the illumination direction; and a specular reflection component estimation section for estimating a specular reflection component of the image from the normal line information of the object and the illumination direction with respect to the object. The normal line information estimation section estimates the normal line information again from the image from which a specular reflection component has been removed in the specular reflection component section.

摘要翻译： 一种用于从对象的图像估计对象的法线信息的法线信息估计装置。 法线信息估计装置包括：照度方向估计部，根据图像的亮度值估计相对于物体的照明方向; 法线信息估计部，用于基于照明方向估计图像中的物体的法线信息; 以及镜面反射分量估计部分，用于根据物体的法线信息和相对于物体的照明方向估计图像的镜面反射分量。 法线信息估计部分从镜面反射分量部分中已经去除镜面反射分量的图像再次估计法线信息。

公开(公告)号：US07974447B2

公开(公告)日：2011-07-05

申请号：US11887257

申请日：2006-06-08

申请人： Mihoko Shimano ,  Etsuko Nagao

发明人： Mihoko Shimano ,  Etsuko Nagao

IPC分类号： G06K9/68 ,  G06K9/40

CPC分类号： G06T5/009 ,  G06T7/33 ,  G06T2207/30201

摘要： An image synthesizing device for synthesizing a second image of an object in a predetermined illumination condition from a first image of the object includes an illumination condition estimation section for estimating an illumination condition from a luminance value of the first image, and a normal information estimation section estimates normal information containing a normal direction of the object, with regard to a predetermined pixel in the first image. An error component information estimation section estimates information of an error component in the predetermined illumination condition, an image synthesizing section synthesizes the second image of the object in the predetermined illumination condition, and the normal information estimation section estimates normal information of a predetermined pixel from information of a plurality of the pixels in the first image.

摘要翻译： 一种用于从目标的第一图像合成预定照明条件下的物体的第二图像的图像合成装置包括：照射条件估计部，用于根据第一图像的亮度值估计照明条件;以及正常信息估计部 针对第一图像中的预定像素估计包含对象的法线方向的正常信息。 误差分量信息估计部分估计在预定照明条件下的误差分量的信息，图像合成部分在预定照明条件下合成对象的第二图像，并且正常信息估计部分根据信息估计预定像素的正常信息 的第一图像中的多个像素。

公开(公告)号：US20090226029A1

公开(公告)日：2009-09-10

申请号：US11887257

申请日：2006-06-08

申请人： Mihoko Shimano ,  Etsuko Nagao

发明人： Mihoko Shimano ,  Etsuko Nagao

IPC分类号： G06K9/00

CPC分类号： G06T5/009 ,  G06T7/33 ,  G06T2207/30201

摘要： An image synthesizing device for synthesizing a second image of an object in a predetermined illumination condition from a first image of the object includes an illumination condition estimation section for estimating an illumination condition from a luminance value of the first image, a normal information estimation section for estimating normal information containing a normal direction of the object, about a predetermined pixel in the first image, an error component information estimation section for estimating information of an error component in the predetermined illumination condition, and an image synthesizing section for synthesizing the second image of the object in the predetermined illumination condition, and the normal information estimation section estimates normal information of a predetermined pixel from information of a plurality of the pixels in the first image.

摘要翻译： 一种用于从目标的第一图像合成预定照明条件下的物体的第二图像的图像合成装置包括：照射条件估计部分，用于根据第一图像的亮度值估计照明条件;正常信息估计部分，用于 估计包含对象的正常方向的正常信息，关于第一图像中的预定像素，用于估计预定照明条件中的误差分量的信息的误差分量信息估计部分和用于合成第二图像的第二图像的图像合成部分 在预定照明条件下的对象，并且正常信息估计部分从第一图像中的多个像素的信息中估计预定像素的正常信息。

公开(公告)号：US20060115116A1

公开(公告)日：2006-06-01

申请号：US11320416

申请日：2005-12-29

申请人： Masahiro Iwasaki ,  Taro Imagawa ,  Kenji Nagao ,  Etsuko Nagao

发明人： Masahiro Iwasaki ,  Taro Imagawa ,  Kenji Nagao ,  Etsuko Nagao

IPC分类号： G06K9/00 ,  G06K9/68

CPC分类号： G06K9/00348 ,  G06T7/20

摘要： The present invention provides a human detection device which detects a human contained in a moving picture, and includes the following: a spatiotemporal volume generation unit which generates a three-dimensional spatiotemporal image in which frame images that make up the moving picture in which a human has been filmed are arranged along a temporal axis; a spatiotemporal fragment extraction unit which extracts a real image spatiotemporal fragment, which is an image appearing in a cut plane or cut fragment when the three-dimensional spatiotemporal image is cut, from the generated three-dimensional spatiotemporal image; a human body region movement model spatiotemporal fragment output unit which generates and outputs, based on a human movement model which defines a characteristic of the movement of a human, a human body region movement spatiotemporal fragment, which is a spatiotemporal fragment obtained from a movement by the human movement model; a spatiotemporal fragment verification unit which verifies between a real image spatiotemporal fragment and a human body region movement model spatiotemporal fragment; and an attribute output unit which outputs a human attribute which includes the presence/absence of a human in the moving picture, based on that verification result.

公开(公告)号：US20070230773A1

公开(公告)日：2007-10-04

申请号：US11596431

申请日：2005-04-27

申请人： Kenji Nagao ,  Etsuko Nagao

发明人： Kenji Nagao ,  Etsuko Nagao

IPC分类号： G06T7/00

CPC分类号： G06K9/42 ,  G06K9/00281 ,  G06K9/6269 ,  G06T7/73

摘要： A parameter estimation method for estimating a parameter by estimating maximum a posteriori probability for input data. Operation for the input data is expressed by an inner product for the input data and the inner product is replaced by a Kernel function. By using the calculation result of the kernel function, a parameter is estimated. The method includes a step (offline operation) for learning a correlation between a plurality of learning input data in which a parameter to be estimated is known and the parameter corresponding to each of the learning input data; and a step (online operation) for estimating the parameter for the estimating input data in which a parameter to be estimated is unknown, by using the learned correlation.

摘要翻译： 一种用于通过估计输入数据的最大后验概率来估计参数的参数估计方法。 输入数据的操作由输入数据的内积表示，内积由内核函数代替。 通过使用内核函数的计算结果，可以估计一个参数。 该方法包括：步骤（离线操作），用于学习其中待估计的参数已知的多个学习输入数据与对应于每个学习输入数据的参数之间的相关性; 以及通过使用所学习的相关性来估计用于估计要估计的参数的输入数据的参数的参数的步骤（在线操作）。