Photogrammetry of building using machine learning based inference

Patent metadata

Field	Value
Publication number	US-11880943-B2
Application number	US-202217727847-A
Country	US
Kind code	B2
Filing date	Apr 25, 2022
Priority date	Mar 5, 2020
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

The data set receiving unit 13 of the information processing apparatus 1 of an aspect example receives a data set that includes at least BIM data. The route setting processor 151 sets a route, which is arranged inside and/or outside a virtual building represented by the BIM data, based on the data set received. The virtual image set generating processor 152 generates a virtual image set of the virtual building along the route, based on the received data set and the set route. The inference model creating processor 153 creates an inference model by applying machine learning with training data that includes at least the generated virtual image set to a neural network. The inference model created is used to identify data of a building material from data acquired by measuring a building.

First claim

What is claimed is:

1. An information processing apparatus of processing building information modeling (BIM) data, comprising:
processing circuitry configured to receive a data set that includes BIM data, installation date information that shows an installation date of a virtual building material recorded in the BIM data, and measurement date information that shows a measurement date of a building; and
a BIM data creating processor configured to create first BIM data corresponding to a state in which only a virtual building material whose installation date is same as or earlier than the measurement date is installed, based on the data set.

2. The information processing apparatus of claim 1 , further comprising a route setting processor configured to set a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, based on the first BIM data.

3. The information processing apparatus of claim 2 , further comprising a virtual image set generating processor configured to generate a virtual image set of the virtual building along the route set by the route setting processor, based on the first BIM data and the route set by the route setting processor.

4. The information processing apparatus of claim 1 , further comprising a route setting processor configured to set a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, based on the BIM data included in the data set.

5. The information processing apparatus of claim 4 , further comprising a virtual image set generating processor configured to generate a virtual image set of the virtual building along the route set by the route setting processor, based on the first BIM data and the route set by the route setting processor.

6. The information processing apparatus of claim 1 , wherein the data set further includes route information representing a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set,
the information processing apparatus further comprising a virtual image set generating processor configured to generate a virtual image set of the virtual building along the route represented by the route information, based on the first BIM data and the route represented by the route information.

7. A method of processing building information modeling (BIM) data, comprising:
preparing a data set that includes BIM data, installation date information that shows an installation date of a virtual building material recorded in the BIM data, and measurement date information that shows a measurement date of a building; and
creating first BIM data corresponding to a state in which only a virtual building material whose installation date is same as or earlier than the measurement date is installed, based on the data set.

8. The method of claim 7 , further comprising setting a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, based on the first BIM data.

9. The method of claim 8 , further comprising generating a virtual image set of the virtual building along the route, based on the first BIM data and the route.

10. The method of claim 7 , further comprising setting a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, based on the BIM data included in the data set.

11. The method of claim 10 , further comprising generating a virtual image set of the virtual building along the route, based on the first BIM data and the route.

12. The method of claim 7 , wherein the data set further includes route information representing a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set,
the method further comprising generating a virtual image set of the virtual building along the route, based on the first BIM data and the route.

13. A computer-readable non-transitory recording medium that records a program causing a computer to execute processing of building information modeling (BIM) data, the program causes the computer to create first BIM data, based on a data set that includes
BIM data,
installation date information that shows an installation date of a virtual building material recorded in the BIM data, and
measurement date information that shows a measurement date of a building,
the first BIM data corresponding to a state in which only a virtual building material whose installation date is same as or earlier than the measurement date is installed.

14. The recording medium of claim 13 , wherein the program further causes the computer to set a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, based on the first BIM data.

15. The recording medium of claim 14 , wherein the program further causes the computer to generate a virtual image set of the virtual building along the route, based on the first BIM data and the route.

16. The recording medium of claim 13 , wherein the program further causes the computer to set a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, based on the BIM data included in the data set.

17. The recording medium of claim 16 , wherein the program further causes the computer to generate a virtual image set of the virtual building along the route, based on the first BIM data and the route.

18. The recording medium of claim 13 , wherein
the data set further includes route information representing a route arranged inside and/or outside a virtual building represented by the BIM data included in the data set, and
the program further causes the computer to generate a virtual image set of the virtual building along the route, based on the first BIM data and the route.

Assignees

• Topcon Corp

Inventors

• Fukuma Yasufumi
• Yanobe Satoshi

Classifications

• G06T19/003 Primary

  Navigation within 3D models or images · CPC title

• G06F18/214

  Generating training patterns; Bootstrap methods, e.g. bagging or boosting · CPC title

• G06T2210/04

  Architectural design, interior design · CPC title