Matches in SemOpenAlex for { <https://semopenalex.org/work/W2006468796> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2006468796 abstract "Infrared imaging is commonly used for performing thermography based on field calibration that simply relates image levels to apparent temperature levels using field blackbodies. Under normal conditions, the correlation between the image levels and blackbody temperature is strong, allowing conversion of the raw data into units of blackbody-equivalent temperature without consideration of other factors. However, if certain instrument anomalies are present, a compensation procedure that involves more in-depth sensor characterization may be required. The procedure, which uses an analysis of temperature-dependent dark current, optical emissions, and detector response, is described along with results for a specific case. The procedure involves first cold soaking a thermal camera and then observing the cooldown behavior of the sensor under non-stressing conditions. Variations in environmental temperature levels are then used to observe cooler performance and dark current levels. A multi-variate linear regression is performed that allows temperature-dependent dark current, lens emission, lens transmission, and detector quantum efficiency to be fully characterized. The resulting data describe for each image pixel a relationship between the scene temperature and the observed values of image signal, detector temperature, and camera temperature. The procedure has been applied successfully to a thermal imager used to collect field data while suffering from instrument anomalies due to a faulty cooler. Using the resulting characterization data for the pixel-dependent dark current, image data collected with the thermal imager was compensated. The compensation involved using spatial filtering to determine temperature shifts caused by the faulty cooler based on the predictable pattern of pixel-to-pixel variations in dark current. The estimated temperature shift was used to compute a compensation offset for each pixel based on its known dark current coefficient. The compensated image data, while still degraded, was sufficiently corrected for the predictable effects of dark current variations to allow valid thermography to be performed." @default.
- W2006468796 created "2016-06-24" @default.
- W2006468796 creator A5002872152 @default.
- W2006468796 creator A5008100166 @default.
- W2006468796 creator A5033978022 @default.
- W2006468796 creator A5054060766 @default.
- W2006468796 creator A5065933605 @default.
- W2006468796 creator A5068866491 @default.
- W2006468796 date "2013-06-05" @default.
- W2006468796 modified "2023-09-24" @default.
- W2006468796 title "Compensation for instrument anomalies in imaging infrared measurements" @default.
- W2006468796 doi "https://doi.org/10.1117/12.2015473" @default.
- W2006468796 hasPublicationYear "2013" @default.
- W2006468796 type Work @default.
- W2006468796 sameAs 2006468796 @default.
- W2006468796 citedByCount "1" @default.
- W2006468796 countsByYear W20064687962023 @default.
- W2006468796 crossrefType "proceedings-article" @default.
- W2006468796 hasAuthorship W2006468796A5002872152 @default.
- W2006468796 hasAuthorship W2006468796A5008100166 @default.
- W2006468796 hasAuthorship W2006468796A5033978022 @default.
- W2006468796 hasAuthorship W2006468796A5054060766 @default.
- W2006468796 hasAuthorship W2006468796A5065933605 @default.
- W2006468796 hasAuthorship W2006468796A5068866491 @default.
- W2006468796 hasConcept C11171543 @default.
- W2006468796 hasConcept C120665830 @default.
- W2006468796 hasConcept C121332964 @default.
- W2006468796 hasConcept C127313418 @default.
- W2006468796 hasConcept C15336307 @default.
- W2006468796 hasConcept C153385146 @default.
- W2006468796 hasConcept C15744967 @default.
- W2006468796 hasConcept C157909335 @default.
- W2006468796 hasConcept C158355884 @default.
- W2006468796 hasConcept C160633673 @default.
- W2006468796 hasConcept C165838908 @default.
- W2006468796 hasConcept C180651308 @default.
- W2006468796 hasConcept C192562407 @default.
- W2006468796 hasConcept C199360897 @default.
- W2006468796 hasConcept C205372480 @default.
- W2006468796 hasConcept C2779222261 @default.
- W2006468796 hasConcept C2779843651 @default.
- W2006468796 hasConcept C2780023022 @default.
- W2006468796 hasConcept C41008148 @default.
- W2006468796 hasConcept C62520636 @default.
- W2006468796 hasConcept C62649853 @default.
- W2006468796 hasConcept C72293138 @default.
- W2006468796 hasConcept C76935873 @default.
- W2006468796 hasConcept C94915269 @default.
- W2006468796 hasConceptScore W2006468796C11171543 @default.
- W2006468796 hasConceptScore W2006468796C120665830 @default.
- W2006468796 hasConceptScore W2006468796C121332964 @default.
- W2006468796 hasConceptScore W2006468796C127313418 @default.
- W2006468796 hasConceptScore W2006468796C15336307 @default.
- W2006468796 hasConceptScore W2006468796C153385146 @default.
- W2006468796 hasConceptScore W2006468796C15744967 @default.
- W2006468796 hasConceptScore W2006468796C157909335 @default.
- W2006468796 hasConceptScore W2006468796C158355884 @default.
- W2006468796 hasConceptScore W2006468796C160633673 @default.
- W2006468796 hasConceptScore W2006468796C165838908 @default.
- W2006468796 hasConceptScore W2006468796C180651308 @default.
- W2006468796 hasConceptScore W2006468796C192562407 @default.
- W2006468796 hasConceptScore W2006468796C199360897 @default.
- W2006468796 hasConceptScore W2006468796C205372480 @default.
- W2006468796 hasConceptScore W2006468796C2779222261 @default.
- W2006468796 hasConceptScore W2006468796C2779843651 @default.
- W2006468796 hasConceptScore W2006468796C2780023022 @default.
- W2006468796 hasConceptScore W2006468796C41008148 @default.
- W2006468796 hasConceptScore W2006468796C62520636 @default.
- W2006468796 hasConceptScore W2006468796C62649853 @default.
- W2006468796 hasConceptScore W2006468796C72293138 @default.
- W2006468796 hasConceptScore W2006468796C76935873 @default.
- W2006468796 hasConceptScore W2006468796C94915269 @default.
- W2006468796 hasLocation W20064687961 @default.
- W2006468796 hasOpenAccess W2006468796 @default.
- W2006468796 hasPrimaryLocation W20064687961 @default.
- W2006468796 hasRelatedWork W1870371638 @default.
- W2006468796 hasRelatedWork W2013225749 @default.
- W2006468796 hasRelatedWork W2065879962 @default.
- W2006468796 hasRelatedWork W2372983086 @default.
- W2006468796 hasRelatedWork W2379508005 @default.
- W2006468796 hasRelatedWork W2383342939 @default.
- W2006468796 hasRelatedWork W2402363998 @default.
- W2006468796 hasRelatedWork W292381545 @default.
- W2006468796 hasRelatedWork W3046060100 @default.
- W2006468796 hasRelatedWork W4205298487 @default.
- W2006468796 isParatext "false" @default.
- W2006468796 isRetracted "false" @default.
- W2006468796 magId "2006468796" @default.
- W2006468796 workType "article" @default.