http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109978960-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T7-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T7-80 |
| filingDate | 2019-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109978960-B |
| titleOfInvention | High precision screen-camera pose calibration method based on photogrammetry |
| abstract | The invention discloses a high-precision screen-camera pose calibration method based on photogrammetry. Firstly, the binocular measurement system is used to determine the coordinates of the points on the screen in the screen coordinate system; and then the pattern on the calibration board is determined in the camera coordinate system. Secondly, use the photogrammetry system to obtain the three-dimensional coordinates of the center of the marked point on the screen and the center of the pattern on the calibration plate in the photogrammetry system coordinate system Oxyz phg ; find the conversion matrix from the screen coordinate system to the photogrammetry coordinate system phg [RT] LCD , conversion matrix from photogrammetry coordinate system to calibration board coordinate system cal [RT] phg , conversion matrix from calibration board coordinate system to camera coordinate system cam [RT] cal ; finally calculate screen coordinate system to camera coordinate system the transformation matrix. This method overcomes the problems in the traditional calibration method that the flatness of the plane mirror is not considered and the collected calibration image is seriously deformed, and realizes high-precision screen-camera pose calibration. |
| priorityDate | 2019-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID25078152 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID422707724 http://rdf.ncbi.nlm.nih.gov/pubchem/protein/ACCP27058 |
Total number of triples: 13.