http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107944368-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T7-344 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T7-136 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06V20-182 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T5-006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T7-136 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T7-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T5-00 |
| filingDate | 2017-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107944368-B |
| titleOfInvention | Water body extraction method based on time sequence remote sensing image |
| abstract | the invention discloses a water body extraction method based on a time sequence remote sensing image, which comprises the following steps: the method comprises the steps of firstly collecting short-term time series remote sensing images covering a research area, secondly carrying out geometric correction, image registration and radiometric calibration on the collected time series remote sensing images, secondly analyzing the trend characteristics of the change of the radiance of a near infrared band along with the solar altitude by adopting a trend analysis method to obtain a change slope diagram of the radiance of the near infrared band along with the solar altitude, and finally setting a threshold value for the change slope of the radiance of the near infrared band along with the solar altitude to carry out water body extraction to obtain a water body extraction result diagram. The method is easy to implement and simple and convenient to operate, can better distinguish construction land, mountain shadow and water, can well detect small branch water, and has high water extraction precision. |
| priorityDate | 2017-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.