公开(公告)号：US11222465B2

公开(公告)日：2022-01-11

申请号：US17043580

申请日：2020-02-27

Applicant: SOUTHEAST UNIVERSITY

Inventor： Junyan Yang ,  Jun Cao ,  Qingyao Zhang ,  Beixiang Shi ,  Yi Shi

IPC: G06T17/05 ,  G06T7/40 ,  G06T7/60 ,  G06T19/20 ,  G06T17/00

Abstract: The present invention discloses an embedded urban design scene emulation method and system. The method includes the following steps: constructing a status quo urban three-dimensional model scene according to collected oblique photography data; loading a three-dimensional model of urban design to a scene, and extracting geometric attributes for generation of buildings; unifying a space coordinate system of models and scenes, and automatically determining a space matching degree by taking buildings as a basic unit, and marking matched buildings with Y and mismatched buildings with N for distinction; for a region with the buildings marked with N, performing a local flattening operation in a three-dimensional model scene of oblique photography to flatten stereo data; for a region with the buildings marked with Y, performing real-time space editing in the three-dimensional model of urban design to hide the marked buildings; and opening two sets of processed space data to implement mosaic display. The present invention can conveniently embed a three-dimensional model of urban design into a status quo three-dimensional model of oblique photography for scene emulation, and provides technical and method supports for digital presentation and management of urban design achievements.

公开(公告)号：US11302072B2

公开(公告)日：2022-04-12

申请号：US16629312

申请日：2018-06-06

Applicant: SOUTHEAST UNIVERSITY

Inventor： Junyan Yang ,  Beixiang Shi ,  Jun Cao ,  Tanhua Jin

IPC: G06G7/48 ,  G06T17/10 ,  G06T19/00 ,  G06F30/13 ,  G06F111/20

Abstract: A system for constructing an urban design digital sand table, the system includes the following modules. A sand table environment constructing module, configured to construct a digital environment of the urban design sand table. An element grading display module, configured to perform hierarchical management on urban design elements, and perform visual hierarchical display. A spatial indicator interpretation module, configured to articulate names, algorithms, and attributes for indicators in an indicator library of the urban design digital sand table. A spatial calculation tool module, configured to load a toolkit to calculate a selected range in the digital sand table. An offline data extraction module, configured to extract the data of the digital sand table so as to export two-dimensional or three-dimensional spatial data in an offline mode. A dynamic real-time editing module, configured to perform real-time editing operation on an urban digital design scheme loaded in the system.