Method and apparatus for modelling a scene

Patent metadata

Field	Value
Publication number	US-2023103081-A1
Application number	US-202117910237-A
Country	US
Kind code	A1
Filing date	Mar 4, 2021
Priority date	Mar 12, 2020
Publication date	Mar 30, 2023
Grant date	—

Abstract

According to embodiments, a scene modelling system may (e.g., initially) obtain and (e.g., subsequently) update a model of a scene based on data describing the scene. The data describing the scene may be received from any of sensors and objects, for example, located in the scene. The scene may comprise a set of connected and unconnected objects. An object may be associated with its own part of the model that may have been built, for example in an initialization phase. A connected object may transmit its (e.g., part of) model to the scene modelling system (e.g., on demand or upon detection of any change). An unconnected object (e.g., and its status) may be recognized in the scene from an image of the object, for example, captured in the scene.

First claim

1 . A method implemented in a processing device, the method comprising:
obtaining a model of a scene spatially locating at least one object in the scene, the model being based on first information describing the scene; receiving, by the processing device from the at least one object, second information about the at least one object indicating a status of the at least one object changing a rendering property associated with the at least one object in the scene; updating the model based on the received second information; and sending at least one parameter of the updated model.

2 . (canceled)

3 . The method according to claim 1 , wherein said first information comprises at least one image of the scene.

4 . The method according to claim 1 , wherein said first information comprises a model element representing the at least one object, and wherein said second information comprises at least one parameter to be updated in the model element.

5 . The method according to claim 4 , wherein the model element is received from the at least one object.

6 . The method according to claim 1 , wherein said at least one object corresponds to a light source.

7 . The method according to claim 6 , wherein said light source is associated with a set of parameters including any of a light type, a position, a shape, a dimension, a direction, a status, an intensity and a color.

8 . The method according to claim 6 , wherein said light source represents a window, and wherein any of said first information and said second information comprises any of a shutter status, a day of year, a time of day and weather conditions.

9 . The method according to claim 6 , wherein said light source represents a smart bulb.

10 . The method according to claim 1 , further comprising obtaining a request for model information at a position in the scene.

11 . (canceled)

12 . The method according to claim 10 , wherein the request is obtained from any of a rendering device and a user interface of the processing device.

13 . The method according to claim 10 , wherein the at least one parameter of the updated model is sent responsive to the request.

14 . A non-transitory computer-readable storage medium storing program code instructions executable by a processor for executing the method according to claim 1 .

15 . (canceled)

16 . The method according to claim 4 , wherein the model element is received from a network element storing a database of model elements.

17 . An apparatus comprising a processor configured to:
obtain a model of a scene spatially locating at least one object in the scene, the model being based on first information describing the scene; receive, from the at least one object, second information about the at least one object indicating a status of the at least one object changing a rendering property associated with the at least one object in the scene; update the model based on the received second information; and send at least one parameter of the updated model.

18 . The apparatus according to claim 17 , wherein said first information comprises at least one image of the scene.

19 . The apparatus according to claim 17 , wherein said first information comprises a model element representing the at least one object, and wherein said second information comprises at least one parameter to be updated in the model element.

20 . The apparatus according to claim 19 , wherein the model element is received from the at least one object.

21 . The apparatus according to claim 19 , wherein the model element is received from a network element storing a database of model elements.

22 . The apparatus according to claim 17 , wherein said at least one object corresponds to a light source.

23 . The apparatus according to claim 22 , wherein said light source is associated with a set of parameters including any of a light type, a position, a shape, a dimension, a direction, a status, an intensity and a color.

24 . The apparatus according to claim 22 , wherein said light source represents a window, and wherein any of said first information and said second information comprises any of a shutter status, a day of year, a time of day and weather conditions.

25 . The apparatus according to claim 22 , wherein said light source represents a smart bulb.

26 . The apparatus according to claim 17 , wherein the processor is further configured to obtain a request for model information at a position in the scene.

27 . The apparatus according to claim 26 , wherein the request is obtained from any of a rendering device and a user interface of the apparatus.

28 . The apparatus according to claim 26 , wherein the at least one parameter of the updated model is sent responsive to the request.

Assignees

• Interdigital Ce Patent Holdings

Inventors

• Robert Philippe
• Baillard Caroline
• Laurent Anthony
• Jouet Pierrick

Classifications

• G06T2210/61

  Scene description · CPC title

• G06T15/506 Primary

  Illumination models · CPC title

• G06T2219/2021

  Shape modification · CPC title

• G06T19/20 Primary

  Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts · CPC title

• G06T17/00

  Three-dimensional [3D] modelling for computer graphics · CPC title