Granted Patent B2

US 12,356,006 · App. 18/027,754 · Granted Jul 8, 2025

Inventors: Julien Fleureau (Rennes, FR); Renaud Dore (Rennes, FR); Bertrand Chupeau (Rennes, FR); Thierry Tapie (Rennes, FR)

Assignee: InterDigital CE Patent Holdings, SAS

H04N19/597G06T3/053G06T17/00H04N19/124H04N19/126G06T2200/16

Abstract

Claims (18)

1. A method comprising:

generating patches by aggregating not totally transparent parts of a multi-plane image and by using a quantization law depending on an angular resolution, wherein the multi-plane image comprises a number of layers and is representative of a three-dimensional scene;

determining that the generated patches cannot be packed in an atlas image of a given size; and

responsive to the determining, decreasing the angular resolution and repeating generating patches.

2. The method of claim 1 , wherein the quantization law requires a lower number of layers of the multi-plane image when the angular resolution decreases or a viewing excursion decreases.

3. The method of claim 1 , wherein the quantization law further depends on a viewing excursion associated with the three-dimensional scene.

4. A method for generating a sequence of atlas images from a sequence of multi-plane images according to claim 1 , wherein the generated sequence of atlas images is encoded as an intra-period of a video stream.

5. A device comprising a processor configured to perform:

generating patches by aggregating non totally transparent parts of a multi-plane image and by using a quantization law depending on an angular resolution, wherein the multi-plane image comprises a number of layers and is representative of a three-dimensional scene;

determining that the generated patches cannot be packed in an atlas image of a given size; and

responsive to the determining, decreasing the angular resolution and repeating generating patches.

6. The device of claim 5 , wherein the quantization law requires a lower number of layers of the multi-plane image when the angular resolution decreases or a viewing excursion decreases.

7. The device of claim 5 , wherein the quantization law further depends on a viewing excursion associated with the three-dimensional scene.

8. A device comprising a processor configured to perform generating a sequence of atlas images from a sequence of multi-plane images according to the method of claim 1 , wherein the generated sequence of atlas images is encoded as an intra-period of a video stream.

9. The method of claim 4 , wherein the quantization law further depends on a viewing excursion associated with the three-dimensional scene.

10. The method of claim 4 , wherein the quantization law requires a lower number of layers of the multi-plane image when the angular resolution decreases or a viewing excursion decreases.

11. The device of claim 8 , wherein the quantization law requires a lower number of layers of the multi-plane image when the angular resolution decreases or a viewing excursion decreases.

12. The device of claim 8 , wherein the quantization law further depends on a viewing excursion associated with the three-dimensional scene.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (19)