公开(公告)号：US20210248816A1

公开(公告)日：2021-08-12

申请号：US17043580

申请日：2020-02-27

Applicant: SOUTHEAST UNIVERSITY

Inventor： Junyan YANG ,  Jun CAO ,  Yang CHENG ,  Qingyao ZHANG ,  Zuhao ZHOU

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

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：US20220309200A1

公开(公告)日：2022-09-29

申请号：US17610042

申请日：2020-10-29

Applicant: SOUTHEAST UNIVERSITY

Inventor： Junyan YANG ,  Xiao ZHU ,  Yi SHI ,  Qingyao ZHANG ,  Xun ZHANG ,  Beixiang SHI

IPC: G06F30/13 ,  G06F30/20

Abstract: The present invention discloses a dynamic interactive simulation method for recognition and planning of an urban viewing corridor. The method includes: constructing a sand table of morphology data of an urban space around an urban viewing point; creating a visual sphere, calculating a blocking point set, acquiring a three-dimensional view field of the viewing point, and obtaining an effective projection plane of a sight line of the viewing point; extracting a visual three-dimensional road model, calculating projection curvatures of road centerlines at points equidistant from each other, and screening and recognizing a viewing corridor; collecting a real scene, and inputting the collected real scene to a three-dimensional interactive display platform; inputting a new planning scheme to the three-dimensional interactive display platform, and simulating an urban viewing corridor with the planning scheme superimposed; and outputting, by using augmented reality glasses, a dynamic interactive VR scene of the urban viewing corridor space after the urban planning scheme is superimposed. The present invention combines a real dynamic viewing process, and uses a three-dimensional interactive display platform for planning simulation and interactive output, thereby providing a basic rational support for further optimization and decision-making of urban planning and design.