| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ec24cf853e108d093de2fd7fa37c5d9c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T15-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T15-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T17-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-00 |
| filingDate |
2007-02-21^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2b4fda4d64ad6533b60bdc74409a05d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2612703263e0008f7680f618483585d7 |
| publicationDate |
2008-02-07^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2008033277-A1 |
| titleOfInvention |
Systems and Methods of Gradient Assisted Volume Rendering |
| abstract |
A system and method for rendering an image that includes accessing image data and dividing the image data into one or more blocks. One or more corner points of the blocks are identified and rays are cast through voxel space of the image data in the direction of the corner points to determine one or more integrated values for the corner points. The integrated values are then sampled and compared to the sampled values for each combination of the corner points. A difference value (diff value ) is calculated as a function of the comparison and an initial gradient (grad) is calculated as a function of a Reduced Path Octree (RPO) structure during the casting of rays. Next, a maximum gradient (maxGrad) is calculated based on the initial gradient (grad). Finally, an image processing operation is determined as a function of the maximum gradient (maxGrad) and the difference value (diff value ). The image processing operation may perform interpolation to fill pixel values inside the image data, or it may perform recursive sub-division of the blocks, and cast and sample additional rays. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012133656-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014071129-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012134560-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109215093-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8244018-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8922556-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9437039-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10169909-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016042553-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013027417-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10726007-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010085360-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9208610-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8379955-B2 |
| priorityDate |
2006-08-03^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |