公开(公告)号：WO2021155246A

公开(公告)日：2021-08-05

申请号：PCT/US2021/015850

申请日：2021-01-29

Applicant: HOVER INC. [US]/[US]

Inventor： CASTILLO, William ,  SCOTT, Brandon ,  FIRL, Alrik ,  CUTTS, David, Royston ,  IGNER, Jonathan, Mark ,  CURRO, Domenico ,  RETHAGE, Dario ,  LI, Panfeng

IPC: H04N5/232 ,  G06F3/167 ,  G06T17/00 ,  G06T2207/20072 ,  G06T2207/20084 ,  G06T7/11 ,  G06T7/12 ,  G06T7/174 ,  G06T7/74 ,  H04N5/23218 ,  H04N5/23222 ,  H04N5/232945

Abstract: Disclosed are techniques for enhancing two-dimensional (2D) image capture of subjects (e.g., a physical structure, such as a residential building) to maximize the feature correspondences available for three-dimensional (3D) model reconstruction. More specifically, disclosed is a computer-vision network configured to provide viewfinder interfaces and analyses to guide the improved capture of an intended subject for specified purposes. Additionally, the computer-vision network can be configured to generate a metric representing a quality of feature correspondences between images of a complete set of images used for reconstructing a 3D model of a physical structure. The computer-vision network can also be configured to generate feedback at or before image capture time to guide improvements to the quality of feature correspondences between a pair of images.

公开(公告)号：WO2022125646A1

公开(公告)日：2022-06-16

申请号：PCT/US2021/062381

申请日：2021-12-08

Applicant: HOVER, INC. [US]/[US]

Inventor： UPENDRAN, Manish ,  CASTILLO, William ,  DZITSIUK, Jena ,  ZHOU, Yunwen ,  THOMAS, Matthew ,  MURALI, Giridhar ,  SHREE, Atulya

IPC: G06T19/00 ,  G06T17/00 ,  G06T19/20 ,  G06T7/00

Abstract: System and method are provided for scaling a 3-D representation of a building structure. The method includes obtaining world map data including a first track of real-world poses for a plurality of images. The plurality of images comprises non-camera anchors. The method also includes detecting a discrepancy in at least one real-world pose of the first track. The method also includes in response to detecting a discrepancy, generating a new track of real-world poses. The method also includes calculating a scaling factor for a 3-D representation of the building structure based on sampling across a plurality of tracks. The plurality of tracks comprises at least the first track and the new track.