Matches in SemOpenAlex for { <https://semopenalex.org/work/W1662970410> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W1662970410 abstract "This paper describes a study conducted by NASA Ames Research Center (ARC) in collaboration with the Jet Propulsion Laboratory (JPL), Pasadena, California on the image acceptability of the Galileo Low Gain Antenna mission. The primary objective of the study is to determine the impact of the Integer Cosine Transform (ICT) compression algorithm on Galilean images of atmospheric bodies, moons, asteroids and Jupiter's rings. The approach involved fifteen volunteer subjects representing twelve institutions involved with the Galileo Solid State Imaging (SSI) experiment. Four different experiment specific quantization tables (q-table) and various compression stepsizes (q-factor) to achieve different compression ratios were used. It then determined the acceptability of the compressed monochromatic astronomical images as evaluated by Galileo SSI mission scientists. Fourteen different images were evaluated. Each observer viewed two versions of the same image side by side on a high resolution monitor, each was compressed using a different quantization stepsize. They were requested to select which image had the highest overall quality to support them in carrying out their visual evaluations of image content. Then they rated both images using a scale from one to five on its judged degree of usefulness. Up to four pre-selected types of images were presented with and without noise to each subject based upon results of a previously administered survey of their image preferences. Fourteen different images in seven image groups were studied. The results showed that: (1) acceptable compression ratios vary widely with the type of images; (2) noisy images detract greatly from image acceptability and acceptable compression ratios; and (3) atmospheric images of Jupiter seem to have higher compression ratios of 4 to 5 times that of some clear surface satellite images." @default.
- W1662970410 created "2016-06-24" @default.
- W1662970410 creator A5002072464 @default.
- W1662970410 creator A5014201455 @default.
- W1662970410 creator A5051545487 @default.
- W1662970410 creator A5058867951 @default.
- W1662970410 creator A5085618218 @default.
- W1662970410 date "1994-04-01" @default.
- W1662970410 modified "2023-10-18" @default.
- W1662970410 title "An image assessment study of image acceptability of the Galileo low gain antenna mission" @default.
- W1662970410 hasPublicationYear "1994" @default.
- W1662970410 type Work @default.
- W1662970410 sameAs 1662970410 @default.
- W1662970410 citedByCount "0" @default.
- W1662970410 crossrefType "journal-article" @default.
- W1662970410 hasAuthorship W1662970410A5002072464 @default.
- W1662970410 hasAuthorship W1662970410A5014201455 @default.
- W1662970410 hasAuthorship W1662970410A5051545487 @default.
- W1662970410 hasAuthorship W1662970410A5058867951 @default.
- W1662970410 hasAuthorship W1662970410A5085618218 @default.
- W1662970410 hasConcept C115961682 @default.
- W1662970410 hasConcept C13481523 @default.
- W1662970410 hasConcept C154945302 @default.
- W1662970410 hasConcept C205649164 @default.
- W1662970410 hasConcept C31972630 @default.
- W1662970410 hasConcept C41008148 @default.
- W1662970410 hasConcept C55020928 @default.
- W1662970410 hasConcept C62649853 @default.
- W1662970410 hasConcept C9417928 @default.
- W1662970410 hasConceptScore W1662970410C115961682 @default.
- W1662970410 hasConceptScore W1662970410C13481523 @default.
- W1662970410 hasConceptScore W1662970410C154945302 @default.
- W1662970410 hasConceptScore W1662970410C205649164 @default.
- W1662970410 hasConceptScore W1662970410C31972630 @default.
- W1662970410 hasConceptScore W1662970410C41008148 @default.
- W1662970410 hasConceptScore W1662970410C55020928 @default.
- W1662970410 hasConceptScore W1662970410C62649853 @default.
- W1662970410 hasConceptScore W1662970410C9417928 @default.
- W1662970410 hasLocation W16629704101 @default.
- W1662970410 hasOpenAccess W1662970410 @default.
- W1662970410 hasPrimaryLocation W16629704101 @default.
- W1662970410 hasRelatedWork W1521709677 @default.
- W1662970410 hasRelatedWork W1557552943 @default.
- W1662970410 hasRelatedWork W1660938902 @default.
- W1662970410 hasRelatedWork W1964062502 @default.
- W1662970410 hasRelatedWork W1970838121 @default.
- W1662970410 hasRelatedWork W1985521110 @default.
- W1662970410 hasRelatedWork W2005705355 @default.
- W1662970410 hasRelatedWork W2028902437 @default.
- W1662970410 hasRelatedWork W2063312125 @default.
- W1662970410 hasRelatedWork W2069805997 @default.
- W1662970410 hasRelatedWork W2093038333 @default.
- W1662970410 hasRelatedWork W2169737764 @default.
- W1662970410 hasRelatedWork W2363885680 @default.
- W1662970410 hasRelatedWork W26113062 @default.
- W1662970410 hasRelatedWork W3004968419 @default.
- W1662970410 hasRelatedWork W3100443303 @default.
- W1662970410 hasRelatedWork W3139092933 @default.
- W1662970410 hasRelatedWork W3173930225 @default.
- W1662970410 hasRelatedWork W3182255762 @default.
- W1662970410 hasRelatedWork W1965637184 @default.
- W1662970410 isParatext "false" @default.
- W1662970410 isRetracted "false" @default.
- W1662970410 magId "1662970410" @default.
- W1662970410 workType "article" @default.