http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107256563-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2207-10028 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T17-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T7-55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T7-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T17-20 |
| filingDate | 2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107256563-B |
| titleOfInvention | Underwater three-dimensional reconstruction system and method based on difference liquid level image sequence |
| abstract | The invention discloses an underwater three-dimensional reconstruction system based on a difference liquid level image sequence and a method thereof. The system comprises: the system implementation method comprises the following steps: firstly, shooting a difference liquid level image sequence by adopting a single camera; secondly, extracting, matching and eliminating mismatching local features of the image; estimating the normal vector direction of the horizontal plane under a camera coordinate system, and calculating the conversion coordinates of the image feature points; then, calibrating the water surface distance corresponding to each image in the difference liquid level image sequence; and finally, reconstructing and optimizing the dense three-dimensional scene. The method only needs one camera to acquire data, does not need additional underwater markers or special calibration equipment, has the advantages of convenience and quickness in operation, low cost and reconstruction compared with a common underwater three-dimensional reconstruction method and system, and is suitable for any transparent liquid environment with known refractive index. |
| priorityDate | 2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.