Matches in SemOpenAlex for { <https://semopenalex.org/work/W2746757536> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2746757536 abstract "Finely detailed striae in astronomical images can be important in formulation of theory. Examples are studies of streamers in the solar corona and of dust tails in comets. In both instances, conventional observations fail to reveal much of the structural detail. Digital image processing has been used at LASL for enhancing these images. The corona images have tremendous variations in film density which must be eliminated before fine striae can be seen. These variations can be removed by means of numerical modeling of their spatial relation to the sun. This model can be thought of as a surface of background film density. In the comet images the overall variation is less severe. Further, the large number of comet images makes it infeasible to model them individually. Hence, an extreme low-pass filter was used to create an image which can be used as the background surface. In both cases, the background surface is divided into the original image pixel-by-pixel. This quotient image is then frequency filtered for edge enhancement or noise control. Nonlinear density transformations are then used to enhance contrast. For both types of images, heretofore unmeasurable details become readily visible for analysis." @default.
- W2746757536 created "2017-08-31" @default.
- W2746757536 creator A5021762721 @default.
- W2746757536 creator A5034052655 @default.
- W2746757536 creator A5067301635 @default.
- W2746757536 creator A5083674984 @default.
- W2746757536 date "1977-12-08" @default.
- W2746757536 modified "2023-09-23" @default.
- W2746757536 title "<title>Enhancement Of Solar Corona And Comet Details</title>" @default.
- W2746757536 cites W2048448689 @default.
- W2746757536 cites W2069332019 @default.
- W2746757536 cites W2078106319 @default.
- W2746757536 doi "https://doi.org/10.1117/12.955694" @default.
- W2746757536 hasPublicationYear "1977" @default.
- W2746757536 type Work @default.
- W2746757536 sameAs 2746757536 @default.
- W2746757536 citedByCount "0" @default.
- W2746757536 crossrefType "proceedings-article" @default.
- W2746757536 hasAuthorship W2746757536A5021762721 @default.
- W2746757536 hasAuthorship W2746757536A5034052655 @default.
- W2746757536 hasAuthorship W2746757536A5067301635 @default.
- W2746757536 hasAuthorship W2746757536A5083674984 @default.
- W2746757536 hasConcept C106131492 @default.
- W2746757536 hasConcept C115961682 @default.
- W2746757536 hasConcept C120665830 @default.
- W2746757536 hasConcept C121332964 @default.
- W2746757536 hasConcept C1276947 @default.
- W2746757536 hasConcept C160633673 @default.
- W2746757536 hasConcept C2776779350 @default.
- W2746757536 hasConcept C2779900269 @default.
- W2746757536 hasConcept C31972630 @default.
- W2746757536 hasConcept C41008148 @default.
- W2746757536 hasConcept C87355193 @default.
- W2746757536 hasConcept C94081185 @default.
- W2746757536 hasConcept C99498987 @default.
- W2746757536 hasConceptScore W2746757536C106131492 @default.
- W2746757536 hasConceptScore W2746757536C115961682 @default.
- W2746757536 hasConceptScore W2746757536C120665830 @default.
- W2746757536 hasConceptScore W2746757536C121332964 @default.
- W2746757536 hasConceptScore W2746757536C1276947 @default.
- W2746757536 hasConceptScore W2746757536C160633673 @default.
- W2746757536 hasConceptScore W2746757536C2776779350 @default.
- W2746757536 hasConceptScore W2746757536C2779900269 @default.
- W2746757536 hasConceptScore W2746757536C31972630 @default.
- W2746757536 hasConceptScore W2746757536C41008148 @default.
- W2746757536 hasConceptScore W2746757536C87355193 @default.
- W2746757536 hasConceptScore W2746757536C94081185 @default.
- W2746757536 hasConceptScore W2746757536C99498987 @default.
- W2746757536 hasLocation W27467575361 @default.
- W2746757536 hasOpenAccess W2746757536 @default.
- W2746757536 hasPrimaryLocation W27467575361 @default.
- W2746757536 hasRelatedWork W115094067 @default.
- W2746757536 hasRelatedWork W1603978037 @default.
- W2746757536 hasRelatedWork W1611110199 @default.
- W2746757536 hasRelatedWork W1966940606 @default.
- W2746757536 hasRelatedWork W2043579396 @default.
- W2746757536 hasRelatedWork W2048233688 @default.
- W2746757536 hasRelatedWork W2061483211 @default.
- W2746757536 hasRelatedWork W2114867966 @default.
- W2746757536 hasRelatedWork W2133430807 @default.
- W2746757536 hasRelatedWork W2168647446 @default.
- W2746757536 hasRelatedWork W2254964551 @default.
- W2746757536 hasRelatedWork W2257173857 @default.
- W2746757536 hasRelatedWork W2338984397 @default.
- W2746757536 hasRelatedWork W2572257196 @default.
- W2746757536 hasRelatedWork W2806902042 @default.
- W2746757536 hasRelatedWork W2964923335 @default.
- W2746757536 hasRelatedWork W3012557794 @default.
- W2746757536 hasRelatedWork W3037487495 @default.
- W2746757536 hasRelatedWork W3082698734 @default.
- W2746757536 hasRelatedWork W3101698012 @default.
- W2746757536 isParatext "false" @default.
- W2746757536 isRetracted "false" @default.
- W2746757536 magId "2746757536" @default.
- W2746757536 workType "article" @default.