Matches in SemOpenAlex for { <https://semopenalex.org/work/W627862984> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W627862984 abstract "Normal sensors are able to only capture a limited dynamic range. In scenes with large dynamic range, such as situations with both dark indoor and bright outdoor parts, the image will get either over- or under exposed if the exposure is not perfect. Producing high dynamic range (HDR) images will capture the full dynamic range of the scene. There are two main ways of producing HDR images. One combines multiple exposures with a low dynamic range (LDR) sensor. Another is to use a sensors which are able to capture a higher dynamic range, so called wide dynamic range sensors. Multiple exposures with a single low dynamic range sensor, is not suitable for real time video because this technique have large problems with movement. Wide dynamic range sensors only require one exposure, but these have difficulties in normal situations were LDR sensors are sufficient. A type of algorithms called tone mapping are used to reduce the high dynamic range image to at the limitations of normal monitors. Simulations show that using these algorithms on low dynamic range images will change the illumination of the scene, solving the problem. Tone mapping algorithms presented in the literature are software algorithms. Two groups of algorithms exist; local and global tone mappers. Local algorithms are time consuming, and require large amounts of memory. They are not suitable for real time implementations since they rely on filtering operations for each pixel. Global algorithms, does not rely on filtering and are less time consuming. A precomputed curve is used to map the pixels to new values. This makes the global algorithms more suitable for video. A reduced tone mapping system is presented. This reduction results in a segmented curve, which drastically reduces the memory required for defining the curve. It also makes it feasible to control temporal changes. The reduced system has been successfully implemented, achieving sufficient frequencies to be part of a real time system." @default.
- W627862984 created "2016-06-24" @default.
- W627862984 creator A5029322262 @default.
- W627862984 date "2011-01-01" @default.
- W627862984 modified "2023-09-24" @default.
- W627862984 title "Tone mapping in video conference systems" @default.
- W627862984 hasPublicationYear "2011" @default.
- W627862984 type Work @default.
- W627862984 sameAs 627862984 @default.
- W627862984 citedByCount "0" @default.
- W627862984 crossrefType "dissertation" @default.
- W627862984 hasAuthorship W627862984A5029322262 @default.
- W627862984 hasConcept C124952713 @default.
- W627862984 hasConcept C127413603 @default.
- W627862984 hasConcept C142362112 @default.
- W627862984 hasConcept C146978453 @default.
- W627862984 hasConcept C154945302 @default.
- W627862984 hasConcept C160633673 @default.
- W627862984 hasConcept C197298091 @default.
- W627862984 hasConcept C199360897 @default.
- W627862984 hasConcept C204323151 @default.
- W627862984 hasConcept C26713055 @default.
- W627862984 hasConcept C2776179129 @default.
- W627862984 hasConcept C2780056265 @default.
- W627862984 hasConcept C2780583480 @default.
- W627862984 hasConcept C31972630 @default.
- W627862984 hasConcept C41008148 @default.
- W627862984 hasConcept C79403827 @default.
- W627862984 hasConcept C8641274 @default.
- W627862984 hasConcept C87133666 @default.
- W627862984 hasConceptScore W627862984C124952713 @default.
- W627862984 hasConceptScore W627862984C127413603 @default.
- W627862984 hasConceptScore W627862984C142362112 @default.
- W627862984 hasConceptScore W627862984C146978453 @default.
- W627862984 hasConceptScore W627862984C154945302 @default.
- W627862984 hasConceptScore W627862984C160633673 @default.
- W627862984 hasConceptScore W627862984C197298091 @default.
- W627862984 hasConceptScore W627862984C199360897 @default.
- W627862984 hasConceptScore W627862984C204323151 @default.
- W627862984 hasConceptScore W627862984C26713055 @default.
- W627862984 hasConceptScore W627862984C2776179129 @default.
- W627862984 hasConceptScore W627862984C2780056265 @default.
- W627862984 hasConceptScore W627862984C2780583480 @default.
- W627862984 hasConceptScore W627862984C31972630 @default.
- W627862984 hasConceptScore W627862984C41008148 @default.
- W627862984 hasConceptScore W627862984C79403827 @default.
- W627862984 hasConceptScore W627862984C8641274 @default.
- W627862984 hasConceptScore W627862984C87133666 @default.
- W627862984 hasLocation W6278629841 @default.
- W627862984 hasOpenAccess W627862984 @default.
- W627862984 hasPrimaryLocation W6278629841 @default.
- W627862984 hasRelatedWork W1489237453 @default.
- W627862984 hasRelatedWork W1599608065 @default.
- W627862984 hasRelatedWork W1896090928 @default.
- W627862984 hasRelatedWork W1899163877 @default.
- W627862984 hasRelatedWork W2003553461 @default.
- W627862984 hasRelatedWork W2295149141 @default.
- W627862984 hasRelatedWork W2399097695 @default.
- W627862984 hasRelatedWork W2518617602 @default.
- W627862984 hasRelatedWork W2623161604 @default.
- W627862984 hasRelatedWork W26287520 @default.
- W627862984 hasRelatedWork W2748969332 @default.
- W627862984 hasRelatedWork W2890236183 @default.
- W627862984 hasRelatedWork W2907213479 @default.
- W627862984 hasRelatedWork W2911447359 @default.
- W627862984 hasRelatedWork W2994967340 @default.
- W627862984 hasRelatedWork W3011524659 @default.
- W627862984 hasRelatedWork W51790259 @default.
- W627862984 hasRelatedWork W85318599 @default.
- W627862984 hasRelatedWork W2200161752 @default.
- W627862984 hasRelatedWork W2515343288 @default.
- W627862984 isParatext "false" @default.
- W627862984 isRetracted "false" @default.
- W627862984 magId "627862984" @default.
- W627862984 workType "dissertation" @default.