公开(公告)号：US20110282897A1

公开(公告)日：2011-11-17

申请号：US12996494

申请日：2009-06-05

申请人： Yiqun Li ,  Joo Hwee Lim ,  Hanlin Goh

发明人： Yiqun Li ,  Joo Hwee Lim ,  Hanlin Goh

IPC分类号： G06F17/30

CPC分类号： G06K9/4671 ,  G06F16/29 ,  G06F16/58 ,  G06K9/6228

摘要： A method and system for maintaining a database of reference images, the database including a plurality of sets of images, each set associated with one location or object. The method comprises the steps of identifying local features of each set of images; determining distances between each local feature of each set and the local features of all other sets; identifying discriminative features of each set of images by removing local features based on the determined distances; and storing the discriminative features of each set of images.

摘要翻译： 一种用于维护参考图像的数据库的方法和系统，所述数据库包括与一个位置或对象相关联的多组图像。 该方法包括以下步骤：识别每组图像的局部特征; 确定每个集合的每个局部特征与所有其他集合的局部特征之间的距离; 通过基于所确定的距离去除局部特征来识别每组图像的辨别特征; 并存储每组图像的辨别特征。

公开(公告)号：US11748998B1

公开(公告)日：2023-09-05

申请号：US17824202

申请日：2022-05-25

申请人： Hanlin Goh ,  Nitish Srivastava ,  Yichuan Tang ,  Ruslan Salakhutdinov

发明人： Hanlin Goh ,  Nitish Srivastava ,  Yichuan Tang ,  Ruslan Salakhutdinov

IPC分类号： G06V20/58 ,  G06N20/00 ,  G06T7/33 ,  B60W40/04 ,  G06V10/75 ,  G06T15/20

CPC分类号： G06V20/58 ,  B60W40/04 ,  G06N20/00 ,  G06T7/337 ,  G06T15/205 ,  G06V10/757

摘要： A method includes obtaining a two-dimensional image, obtaining a two-dimensional image annotation that indicates presence of an object in the two-dimensional image, obtaining three-dimensional sensor information, generating a top-down representation of the three-dimensional sensor information, and obtaining a top-down annotation that indicates presence of the object in the top-down representation. The method also includes determining a bottom surface of a three-dimensional cuboid based on map information, determining a position, a length, a width, and a yaw rotation of the three-dimensional cuboid based on the top-down annotation, and determining a height of the three-dimensional cuboid based on a two-dimensional image annotation, and the position, the length, the width, and the yaw rotation of the three-dimensional cuboid.

公开(公告)号：US11373411B1

公开(公告)日：2022-06-28

申请号：US16433213

申请日：2019-06-06

申请人： Hanlin Goh ,  Nitish Srivastava ,  Yichuan Tang ,  Ruslan Salakhutdinov

发明人： Hanlin Goh ,  Nitish Srivastava ,  Yichuan Tang ,  Ruslan Salakhutdinov

IPC分类号： G06V20/58 ,  G06N20/00 ,  G06T15/20 ,  G06T7/33 ,  B60W40/04 ,  G06V10/75

摘要： A method includes obtaining a two-dimensional image, obtaining a two-dimensional image annotation that indicates presence of an object in the two-dimensional image, determining a location proposal based on the two-dimensional image annotation, determining a classification for the object, determining an estimated size for the object based on the classification for the object, and defining a three-dimensional cuboid for the object based on the location proposal and the estimated size.