System and method of streaming 3-D wireframe animations
First Claim
Patent Images
1. A method comprising:
- partitioning, via a processor, a three-dimensional wireframe mesh corresponding to a video scene according to (1) natural objects within the three-dimensional wireframe mesh and (2) motion of the natural objects, to yield a first partition comprising a first natural object having a first motion and a second partition comprising a second natural object having a second motion;
computing a first visual smoothness value for the first partition and a second visual smoothness value for the second partition;
organizing the first partition and the second partition into respective layers based on the first visual smoothness value and the second visual smoothness value; and
applying unequal error protection to the respective layers, wherein the unequal error protection applied to each layer of the respective layers is based on a respective bitrate value for each layer of the respective layers.
4 Assignments
0 Petitions
Accused Products
Abstract
Optimal resilience to errors in packetized streaming 3-D wireframe animation is achieved by partitioning the stream into layers and applying unequal error correction coding to each layer independently to maintain the same overall bitrate. The unequal error protection scheme for each of the layers combined with error concealment at the receiver achieves graceful degradation of streamed animation at higher packet loss rates than approaches that do not account for subjective parameters such as visual smoothness.
36 Citations
20 Claims
-
1. A method comprising:
-
partitioning, via a processor, a three-dimensional wireframe mesh corresponding to a video scene according to (1) natural objects within the three-dimensional wireframe mesh and (2) motion of the natural objects, to yield a first partition comprising a first natural object having a first motion and a second partition comprising a second natural object having a second motion; computing a first visual smoothness value for the first partition and a second visual smoothness value for the second partition; organizing the first partition and the second partition into respective layers based on the first visual smoothness value and the second visual smoothness value; and applying unequal error protection to the respective layers, wherein the unequal error protection applied to each layer of the respective layers is based on a respective bitrate value for each layer of the respective layers. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A system comprising:
-
a processor; and a computer-readable storage medium storing instructions which, when executed by the processor, cause the processor to perform operations comprising; partitioning a three-dimensional wireframe mesh corresponding to a video scene according to (1) natural objects within the three-dimensional wireframe mesh and (2) motion of the natural objects, to yield a first partition comprising a first natural object having a first motion and a second partition comprising a second natural object having a second motion; computing a first visual smoothness value for the first partition and a second visual smoothness value for the second partition; organizing the first partition and the second partition into respective layers based on the first visual smoothness value and the second visual smoothness value; and applying unequal error protection to the respective layers, wherein the unequal error protection applied to each layer of the respective layers is based on a respective bitrate value for each layer of the respective layers. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A computer-readable storage device storing instructions which, when executed by a processor, cause the processor to perform operations comprising:
-
partitioning a three-dimensional wireframe mesh corresponding to a video scene according to (1) natural objects within the three-dimensional wireframe mesh and (2) motion of the natural objects, to yield a first partition comprising a first natural object having a first motion and a second partition comprising a second natural object having a second motion; computing a first visual smoothness value for the first partition and a second visual smoothness value for the second partition; organizing the first partition and the second partition into respective layers based on the first visual smoothness value and the second visual smoothness value; and applying unequal error protection to the respective layers, wherein the unequal error protection applied to each layer of the respective layers is based on a respective bitrate value for each layer of the respective layers. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification