Transferring data between 3D and 2D domains
AssigneeDalux Aps
InventorAnders Rong
Life of this patent
Estimating the term…
Abstract
A method for tracking progress of the construction of objects, such as walls of a building, based on 3D digital representation. Building Information Modeling (BIM) may provide a digital representation of the physical and functional characteristics of a place, such as a building comprising walls and other objects. A method includes capturing one or more images comprising pixels at the site with a camera, providing an image location and direction for each image, and for each image location and direction, rendering the building information model into a virtual projection comprising virtual pixels.
Claims30
A method for monitoring progress of construction of at least one object at a construction site, wherein said object is constructed in multiple stages at said site, said method comprising the steps of:
- a. providing a digital representation of a building information model of at least part of said site, wherein said building information model comprises a representation of said at least one object including coordinates of said object with respect to said building information model;
- and wherein said building information model comprises metadata;
- b. capturing one or more images comprising pixels at the site with a camera;
- c. providing an image location and direction for each of said images allowing locating and orienting said images with respect to said building information model;
- d. for each image location and direction rendering the building information model into a virtual projection comprising virtual pixels;
- wherein each virtual pixel comprises:
- i. the coordinates of the rendered part of the building information model;
- ii. a surface normal of the rendered part of the building information model;
- and
- iii. any BIM identification marker of the rendered part of the building information model;
- e. using at least one of said images to detect presence of said at least one object or a part of said at least one object applying a machine learning model on said image, wherein the machine learning model has been trained to detect said object or a part of said at least one object;
- f. for each image wherein the presence of said object has been detected, identifying the stage of progress of construction of said at least one object applying a machine learning model on said image, wherein the machine learning model has been trained to recognize different stages of said multiple stages;
- g. feeding the rendered projection into a digital processor, thereby allowing displaying or comparing a relevant part of the building information model and the at least one image;
- and
- h. presenting the stage of progress of the detected object, optionally with reference to the building information model.
A method for monitoring progress of construction at a construction site, said method comprising the steps of:
- a. providing a digital representation of a building information model of at least part of the construction, wherein said building information model comprises metadata including building information model identification markers;
- b. capturing one or more images comprising pixels of the construction with a camera;
- c. providing an image location and direction for each of said images allowing locating and orienting said images with respect to said building information model;
- d. for each image location and direction rendering the building information model into a virtual projection comprising virtual pixels;
- wherein each virtual pixel comprises:
- i. coordinates of the rendered part of the building information model;
- ii. a surface normal of the rendered part of the building information model;
- iii. any building information model identification marker of the rendered part of the building information model;
- iv. optionally, a distance between the image location and the rendered part of the building information model;
- and
- v. optionally, information about whether the rendered part of the building information model faces the camera;
- e. feeding the rendered projection into a digital processor, thereby allowing displaying or comparing a relevant part of the building information model and the at least one image;
- and
- f. presenting a stage of progress of the construction, optionally with reference to the building information model.
Dependencies are inferred from the claim text.