4D VIZUALIZATION OF BUILDING DESIGN AND CONSTRUCTION MODELING WITH PHOTOGRAPHS

Patent №

US 9,852,238

Granted

2017-12-26

Filed 2015

Owner

THE BOARD OF TRUSTEE OF THE UNIVERSITY OF ILLINOIS

Lab

AI components

2

vision · hardware

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

14690104

A system and method are disclosed for, using structure-from-motion techniques, projecting a building information model (BIM) into images from photographs taken of a construction site, to generate a 3D point cloud model using the BIM and, when combined with scheduling constraints, facilitates 4D visualizations and progress monitoring. One of the images acts as an anchor image. Indications are received of first points in the anchor image that correspond to second points in the BIM. Calibration information for an anchor camera is calculated based on the indications and on metadata extracted from the anchor image, to register the anchor image in relation to the BIM. A homography transformation is determined between the images and the anchor camera using the calibration information, to register the rest of the images with the BIM, where some of those images are taken from different cameras and from different angles to the construction site.

VisionAI hardwareG06F 30/13G06T 7/344G06T 7/35G06T 7/80G06T 2207/20072G06T 2207/20076

AI classification

Vision1.00
AI hardware0.52
Machine learning0.24
Planning0.05
Knowledge representation0.01
Evolutionary computation0.00
Natural language0.00
Speech0.00

Ownership

THE BOARD OF TRUSTEE OF THE UNIVERSITY OF ILLINOIS

assignment · 363370848

Assignors

FORSYTH, DAVID ALEXANDER, KARSCH, KEVIN, GOLPARVAR-FARD, MANI

On an employer assignment, the assignors are typically the inventors.

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