公开(公告)号：US20110182477A1

公开(公告)日：2011-07-28

申请号：US12758208

申请日：2010-04-12

申请人： Amir Tamrakar ,  Harpreet Singh Sawhney ,  Qian Yu ,  Ajay Divakaran

发明人： Amir Tamrakar ,  Harpreet Singh Sawhney ,  Qian Yu ,  Ajay Divakaran

IPC分类号： G06K9/00

CPC分类号： G06T7/0002 ,  G06T7/44 ,  G06T7/593 ,  G06T7/62 ,  G06T7/77 ,  G06T2207/20016 ,  G06T2207/30128

摘要： A computer-implemented method for estimating a volume of at least one food item on a food plate is disclosed. A first and second plurality of images are received from different positions above a food plate, wherein angular spacing between the positions of the first plurality of images is greater than angular spacing between the positions of the second plurality of images. A first set of poses of each of the first plurality of images is estimated. A second set of poses of each of the second plurality of images is estimated based on at least the first set of poses. A pair of images taken from each of the first and second plurality of images is rectified based on at least the first and second set of poses. A 3D point cloud is reconstructed based on at least the rectified pair of images. At least one surface of the at least one food item above the food plate is estimated based on at least the reconstructed 3D point cloud. The volume of the at least one food item is estimated based on the at least one surface.

摘要翻译： 公开了一种用于估计食品板上的至少一种食品的体积的计算机实现的方法。 从食品牌上方的不同位置接收第一和第二多个图像，其中第一多个图像的位置之间的角度间隔大于第二多个图像的位置之间的角度间隔。 估计第一多个图像中的每一个的第一组姿势。 基于至少第一组姿势来估计第二组多个图像中的每一个的第二组姿势。 从第一和第二多个图像中的每一个拍摄的一对图像至少基于第一和第二组姿势进行整改。 至少基于整流图像对来重构3D点云。 基于至少重构的3D点云来估计食物板上方的至少一个食物的至少一个表面。 基于至少一个表面来估计至少一个食物的体积。

公开(公告)号：US08345930B2

公开(公告)日：2013-01-01

申请号：US12758208

申请日：2010-04-12

申请人： Amir Tamrakar ,  Harpreet Singh Sawhney ,  Qian Yu ,  Ajay Divakaran

发明人： Amir Tamrakar ,  Harpreet Singh Sawhney ,  Qian Yu ,  Ajay Divakaran

IPC分类号： G06K9/00

CPC分类号： G06T7/0002 ,  G06T7/44 ,  G06T7/593 ,  G06T7/62 ,  G06T7/77 ,  G06T2207/20016 ,  G06T2207/30128

摘要： A computer-implemented method for estimating a volume of at least one food item on a food plate is disclosed. A first and second plurality of images are received from different positions above a food plate, wherein angular spacing between the positions of the first plurality of images is greater than angular spacing between the positions of the second plurality of images. A first set of poses of each of the first plurality of images is estimated. A second set of poses of each of the second plurality of images is estimated based on at least the first set of poses. A pair of images taken from each of the first and second plurality of images is rectified based on at least the first and second set of poses. A 3D point cloud is reconstructed based on at least the rectified pair of images. At least one surface of the at least one food item above the food plate is estimated based on at least the reconstructed 3D point cloud. The volume of the at least one food item is estimated based on the at least one surface.

摘要翻译： 公开了一种用于估计食品板上的至少一种食品的体积的计算机实现的方法。 从食品牌上方的不同位置接收第一和第二多个图像，其中第一多个图像的位置之间的角度间隔大于第二多个图像的位置之间的角度间隔。 估计第一多个图像中的每一个的第一组姿势。 基于至少第一组姿势来估计第二组多个图像中的每一个的第二组姿势。 从第一和第二多个图像中的每一个拍摄的一对图像至少基于第一和第二组姿势进行整改。 至少基于整流图像对来重构3D点云。 基于至少重构的3D点云来估计食物板上方的至少一个食物的至少一个表面。 基于至少一个表面来估计至少一个食物的体积。