View point representation for 3-D scenes

• US 8,786,596 B2
• Filed: 07/22/2009
• Issued: 07/22/2014
• Est. Priority Date: 07/23/2008
• Status: Active Grant

• Current Assignee: Disney Enterprises Incorporated (The Walt Disney Company)
• Original Assignee: Disney Enterprises Incorporated (The Walt Disney Company)
• Inventors: House, Gregory
• Primary Examiner(s): Welch, David T
• Application Number:
  US12/507,708
• Publication Number:
  US 20100020068A1
• Time in Patent Office: 1,826 Days
• Field of Search: 345/419, 345/619, 345/632, 345/633
• US Class Current: 345/419
• CPC Class Codes: G06T 15/08 Volume rendering
• CPC Class Codes: G06T 15/10 Geometric effects
• CPC Class Codes: G06T 15/20 Perspective computation

Abstract

Techniques are described for deriving information, including graphical representations, based on perspectives of a 3D scene by utilizing sensor model representations of location points in the 3D scene. A 2D view point representation of a location point is derived based on the sensor model representation. From this information, a data representation can be determined. The 2D view point representation can be used to determine a second 2D view point representation. Other techniques include using sensor model representations of location points associated with dynamic objects in a 3D scene. These sensor model representations are generated using sensor systems having perspectives external to the location points and are used to determine a 3D model associated with a dynamic object. Data or graphical representations may be determined based on the 3D model. A system for obtaining information based on perspectives of a 3D scene includes a data manager and a renderer.

Claims

1. A computer-implemented method for generating information based on perspectives of a three-dimensional scene comprising:

obtaining a first two-dimensional view point representation of a first location point in the three-dimensional scene based on a sensor model representation, wherein the sensor model representation is generated using a sensor system having a perspective external to the first location point; and

determining, with a processor-based computing device, a data representation from the first two-dimensional view point representation without finding three-dimensional coordinates of the first location point, wherein the determining the data representation includes deriving from the first two-dimensional view point representation a second two-dimensional view point representation from a second perspective external to the first location point;

deriving, with the processor-based computing device, a distance measurement value between the first location point and a second location point in the three-dimensional scene; and

inserting, with the processor-based computing device, the data representation and the distance measurement value into one of the first and second two-dimensional view point representations.

2. The computer-implemented method of claim 1, wherein obtaining comprises:

receiving the sensor model representation of the first location point in the three-dimensional scene; and

deriving, with a processor-based computing device, the two dimensional view point representation of the first location point based on the sensor model representation, without finding three-dimensional coordinates of the first location point.

3. The computer-implemented method of claim 1, wherein the determining includes using at least two angle measurements.

4. The computer-implemented method of claim 1, wherein determining includes deter mining a motion distance relative to time.

5. The computer-implemented method of claim 1, further comprising:

providing a graphical image within a larger image of the three-dimensional scene based upon the generated data representation.

6. The computer-implemented method of claim 5, wherein the providing includes providing the graphical image during a display of the three-dimensional scene.

7. The computer-implemented method of claim 1, wherein the determining includes automatically determining a data representation.

8. The computer-implemented method of claim 1, wherein the determining includes determining a three-dimensional location in space based on a normalized vector of the first location point.

9. A system for generating information based on perspectives of a three-dimensional scene comprising:

an object tracker configured to determine a first two-dimensional view point representation of a first location point in the three-dimensional scene based on a sensor model representation, wherein the sensor model representation is generated using a sensor system having a perspective external to the first location point;

a data manager configured to determine a data representation from the first two-dimensional view point representation without finding three-dimensional coordinates of the first location point, wherein the data manager is further configured to derive from the first two-dimensional view point representation a second two-dimensional view point representation, the data manager further configured to derive a distance measurement value between the first location point and a second location point in the three-dimensional scene; and

a renderer configured to insert the data representation and the distance measurement value into one of the first and second two-dimensional view point representations.

10. The system of claim 9, wherein the sensor system comprises an imaging device.

11. The system of claim 9, further comprising:

a renderer configured to display a graphical image within a larger image of the three-dimensional scene based upon the data representation.

12. A non-transitory computer readable storage medium having a set of instructions executable by a processor stored thereon, wherein executing of the instructions causes the processor to generate information based on perspectives of a three-dimensional scene by:

obtaining a first two-dimensional view point representation of a first location point in the three-dimensional scene based on a sensor model representation, wherein the sensor model representation is generated using a sensor system having a perspective external to the first location point; and

determining a data representation from the first two-dimensional view point representation without finding three-dimensional coordinates of the first location point, wherein the determining the data representation includes deriving from the first two-dimensional view point representation a second two-dimensional view point representation from a second perspective external to the first location point;

deriving a distance measurement value between the first location point and a second location point in the three-dimensional scene; and

inserting the data representation and the distance measurement value into one of the first and second two-dimensional view point representations.