Methods, devices and programs for transmitting roof and building structure of a 3D representation of a building roof based on said structure

• US 8,131,514 B2
• Filed: 10/11/2006
• Issued: 03/06/2012
• Est. Priority Date: 10/11/2005
• Status: Active Grant

• Current Assignee: Orange S.A.
• Original Assignee: Orange S.A.
• Inventors: Gioia, Patrick, Cavagna, Romain, Royan, Jerome
• Primary Examiner(s): JONES, HUGH M
• Application Number:
  US12/089,892
• Publication Number:
  US 20090132210A1
• Time in Patent Office: 1,973 Days
• Field of Search: 703/6, 703/1
• US Class Current: 703/1
• CPC Class Codes: G06T 17/00 Three dimensional [3D] modelling, e.g. data description of 3D objects

Abstract

A technique is provided for transmitting a roof structure for constructing a three-dimensional representation of a building, via a communication network. The technique is based on the transmission of an ordered list of at least two roof models, each including at least: one type of roof; one maximum height parameter of the roof. During construction of the three-dimensional representation of a building, the maximum height parameter of a roof of the list determines a base of the roof in accordance with the list, so that the roof structure corresponds to the ordered superimposition of the roods of the list.

Claims

1. A method for transmission of a roof structure for reconstruction of a 3D representation of a building through a communications network, wherein the method comprises:

generating an ordered list of at least two roof models of the building, each comprising at least;

a type of roof; and

a maximum height parameter of said roof, wherein said maximum height parameter of said roof of said list determines a base of the following roof in said list, so that said roof structure corresponds to an ordered superimposition of said roofs of said list; and

transmitting the ordered list.

2. The method for transmission of a roof structure according to claim 1, wherein said type of roof is chosen from a group comprising:

a gable type roof;

a hip type roof;

a saltbox type roof.

3. The method for transmission of a roof structure according to claim 1, wherein said roof models of said ordered list also comprise at least one of the parameters belonging to the group comprising:

a slope angle parameter of at least one sloping side of said roof;

a projection parameter of at least one eave of said roof.

4. The method for transmission of a roof structure according to claim 2 wherein, when said roof is of a saltbox type, said roof model also comprises a supporting edge parameter defined by an index of a lowest edge of said building belonging to said roof.

5. The method for transmission of a roof structure according to claim 1, wherein said ordered list also comprises at least one flat type roof model that includes no parameter.

6. A method comprising:

producing a data signal representing a roof structure for the reconstruction of a 3D representation of a building, wherein the signal comprises a structure of an ordered list of at least two roof models of the building, each comprising at least;

a field containing a type of roof;

a field containing a maximum height of said roof, wherein said field containing a maximum height of a roof of said list determines a base of the following roof in said list so that said roof structure corresponds to an ordered superimposition of said roofs of said list; and

transmitting the signal through a communications network.

7. A computer program product, comprising program code instructions stored on a computer-readable hardware memory and executable by a microprocessor, wherein the program code instructions implement a method of transmitting a roof structure for reconstruction of a 3D representation of a building through a communications network, wherein the method comprises:

transmitting an ordered list of at least two roof models of the building, each comprising at least;

a type of roof;

a maximum height parameter of said roof, wherein said maximum height parameter of a roof of said list determines a base of the following roof in said list, so that said roof structure corresponds to an ordered superimposition of said roofs of said list.

8. A transmission server of a roof structure for reconstruction of a 3D representation of a building through a communications network,

wherein the server comprises means for generating and transmitting an ordered list of at least two roof models of the building, each comprising at least:

a type of roof; and

a parameter of maximum height of said roof, wherein said maximum height parameter of a roof of said list determines a base of the following roof in said list, so that said roof structure corresponds to an ordered superimposition of said roofs of said list.