Rendering of photorealistic computer graphics images
First Claim
Patent Images
1. A method comprising:
- partitioning an image into a plurality of regions, each of the plurality of regions having a discontinuity edge, a boundary, edge pixels along the boundary, and remaining pixels;
estimating orientation of the discontinuity edge by computing a direction of least discrepancy within each of the plurality of regions by evaluating the edge pixels along the boundary of each of the plurality of regions; and
reproducing the image.
5 Assignments
0 Petitions
Accused Products
Abstract
A ray tracing method based on a directional coherence map comprises partitioning image data into blocks of pixels, with each block including edge pixels and interior pixels. The blocks are individually processed by first computing a discrepancy for each of a plurality of directions of the block. For a given direction, the discrepancy corresponds to a sum of differences of opposing edge pixels oriented along the direction. The direction having a least discrepancy is then selected as an edge direction for the block. Next, a bilinear interpolation is performed along the edge direction to compute the remaining pixels of the block. The approximate image is produced when all of the blocks have been processed.
-
Citations
20 Claims
-
1. A method comprising:
-
partitioning an image into a plurality of regions, each of the plurality of regions having a discontinuity edge, a boundary, edge pixels along the boundary, and remaining pixels;
estimating orientation of the discontinuity edge by computing a direction of least discrepancy within each of the plurality of regions by evaluating the edge pixels along the boundary of each of the plurality of regions; and
reproducing the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A machine-readable medium having stored thereon data representing sequences of instructions, the sequences of instructions which, when executed by a machine, cause the machine to:
-
partition an image into a plurality of regions, wherein each of the plurality of regions having a discontinuity edge, a boundary, edge pixels along the boundary, and remaining pixels;
estimate orientation of the discontinuity edge by computing direction of least discrepancy within each of the plurality of regions by evaluating the edge pixels along the boundary of each of the plurality of regions; and
reproduce the image. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification