公开(公告)号：WO2020123137A1

公开(公告)日：2020-06-18

申请号：PCT/US2019/063092

申请日：2019-11-25

Applicant: HOVER INC.

Inventor： MISHRA, Ajay ,  UPENDRAN, Manish ,  ALTMAN, A.j. ,  CASTILLO, William

IPC: G06T15/04

Abstract: A computer system maintains structure data indicating geometrical constraints for each structure category of a plurality of structure categories. The computer system generates a virtual 3D representation of a structure based on a set of images depicting the structure. For each image in the set of images, one or more landmarks are identified. Based on the landmarks, a candidate structure category is selected. The virtual 3D representation is generated based on the geometrical constraints of the candidate structure category and the landmarks identified in the set of images.

公开(公告)号：WO2022165082A1

公开(公告)日：2022-08-04

申请号：PCT/US2022/014164

申请日：2022-01-27

Applicant: HOVER INC.

Inventor： SHREE, Atulya ,  MURALI, Giridhar ,  SOMMERS, Jeffrey ,  GOULD, Kerry ,  CASTILLO, William ,  SCOTT, Brandon ,  FIRL, Alrik ,  CUTTS, David Royston ,  IGNER, Jonathan Mark ,  RETHAGE, Dario ,  CURRO, Domenico

IPC: G06T7/579 ,  G06T7/20

Abstract: An image set is refined by selection criteria among captured images, such that images within the set must satisfy criteria such as feature matching among a plurality of frames or positional changes between frame pairs or sufficient overlap of reprojected points of one image into another image such that the reprojected points or features are observed in the frustum or coordinate space of the another image.

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：WO2021155246A1

公开(公告)日：2021-08-05

申请号：PCT/US2021/015850

申请日：2021-01-29

Applicant: HOVER INC.

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

IPC: H04N5/232 ,  G06F3/167 ,  G06T15/00 ,  G06T17/00 ,  G06T2207/20072 ,  G06T2207/20084 ,  G06T2210/00 ,  G06T7/11 ,  G06T7/12 ,  G06T7/174 ,  G06T7/277 ,  G06T7/74 ,  G06V10/26 ,  G06V10/44 ,  G06V30/19013 ,  G06V30/19107 ,  G06V30/414 ,  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：WO2021119515A1

公开(公告)日：2021-06-17

申请号：PCT/US2020/064650

申请日：2020-12-11

Applicant: HOVER, INC.

Inventor： UPENDRAN, Manish ,  CASTILLO, William ,  DZITSIUK, Jena ,  ZHOU, Yunwen ,  THOMAS, Matthew

IPC: G06T19/00 ,  G06Q10/06 ,  G06Q10/10 ,  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 images of the building structure, including non-camera anchors. The method also includes identifying reference poses for images based on the non- camera anchors. The method also includes obtaining world map data including real-world poses for the images. The method also includes selecting candidate poses from the real-world poses based on corresponding reference poses. The method also includes calculating a scaling factor for a 3-D representation of the building structure based on correlating the reference poses with the selected candidate poses. Some implementations use structure from motion techniques or LiDAR, in addition to augmented reality frameworks, for scaling the 3-D representations of the building structure. In some implementations, the world map data includes environmental data, such as illumination data, and the method includes generating or displaying the 3-D representation.

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.

公开(公告)号：WO2021096843A1

公开(公告)日：2021-05-20

申请号：PCT/US2020/059809

申请日：2020-11-10

Applicant: HOVER INC.

Inventor： THOMAS, Matthew ,  AVILA-BELTRAN, Francisco ,  CUTTS, David Royston ,  CASTILLO, William ,  MURALI, Giridhar ,  SCOTT, Brandon ,  SOMMERS, Jeffrey

IPC: G06T17/00 ,  G06T19/00

Abstract: Disclosed are techniques for generating a photorealistic image by augmenting or compositing at least a portion of a physical structure (e.g., a house) depicted in a two-dimensional (2D) image with synthetic image data. Additionally, disclosed are techniques for augmenting the depicted physical structure using a minimum amount of three-dimensional (3D) geometric data and applying a scene effect to the synthetic image data to create a photorealistic effect.