Matches in SemOpenAlex for { <https://semopenalex.org/work/W2758875850> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2758875850 startingPage "460" @default.
- W2758875850 abstract "The quantitative measurement of flow velocity field possesses fundamental and key importance for understanding complex flow phenomenon and physical nature in the research of aerodynamics, at the same time, the demand also stimulates the development of aerodynamic test technology level. Traditional flow measurement methods mostly adopt single point measurement or invasive measurement techniques, cannot meet the needs of complex flow situation and global measurement. The optical flow technique possesses the advantages of high space resolution and velocity field smoothness, and could acquire velocity vector by pixel scale from particle image. The differential method is the basic solution of optical flow velocity measurement. Based on optical flow constraint equation combined with smoothness constraint condition and spatial and temporal gradients of grayscale, the movement information of each point would be extracted from optical flow field. In the paper, optical flow calculation method was introduced and optical flow test program was programmed. Through artificial displacement image, the program was verified and analyzed to obtain a reasonable measurement range and the optimal weighted value by which to guide how to gain optical flow velocity field of high precision in practical application. A verification experiment was carried out in a small wind tunnel, by tracer particle as measurement carrier, and the velocity vector field with a resolution of pixel scale was calculated out. The objective of this paper is to develop full flow field measurement technology based on optical flow, improve the spatial resolution and avoid the velocity gradient effect. Through these studies, it is expected that optical flow can contribute to understanding the dynamics space structure of complex flow and acquiring more dynamics information." @default.
- W2758875850 created "2017-10-06" @default.
- W2758875850 creator A5048331270 @default.
- W2758875850 creator A5051186496 @default.
- W2758875850 creator A5058620480 @default.
- W2758875850 date "2015-01-01" @default.
- W2758875850 modified "2023-09-24" @default.
- W2758875850 title "The verification and experiment research on optical flow" @default.
- W2758875850 hasPublicationYear "2015" @default.
- W2758875850 type Work @default.
- W2758875850 sameAs 2758875850 @default.
- W2758875850 citedByCount "0" @default.
- W2758875850 crossrefType "journal-article" @default.
- W2758875850 hasAuthorship W2758875850A5048331270 @default.
- W2758875850 hasAuthorship W2758875850A5051186496 @default.
- W2758875850 hasAuthorship W2758875850A5058620480 @default.
- W2758875850 hasConcept C102634674 @default.
- W2758875850 hasConcept C115961682 @default.
- W2758875850 hasConcept C120665830 @default.
- W2758875850 hasConcept C121332964 @default.
- W2758875850 hasConcept C13393347 @default.
- W2758875850 hasConcept C134306372 @default.
- W2758875850 hasConcept C155542232 @default.
- W2758875850 hasConcept C16302685 @default.
- W2758875850 hasConcept C166693061 @default.
- W2758875850 hasConcept C196558001 @default.
- W2758875850 hasConcept C207857233 @default.
- W2758875850 hasConcept C31972630 @default.
- W2758875850 hasConcept C33923547 @default.
- W2758875850 hasConcept C38349280 @default.
- W2758875850 hasConcept C41008148 @default.
- W2758875850 hasConcept C44154836 @default.
- W2758875850 hasConcept C57879066 @default.
- W2758875850 hasConcept C91188154 @default.
- W2758875850 hasConceptScore W2758875850C102634674 @default.
- W2758875850 hasConceptScore W2758875850C115961682 @default.
- W2758875850 hasConceptScore W2758875850C120665830 @default.
- W2758875850 hasConceptScore W2758875850C121332964 @default.
- W2758875850 hasConceptScore W2758875850C13393347 @default.
- W2758875850 hasConceptScore W2758875850C134306372 @default.
- W2758875850 hasConceptScore W2758875850C155542232 @default.
- W2758875850 hasConceptScore W2758875850C16302685 @default.
- W2758875850 hasConceptScore W2758875850C166693061 @default.
- W2758875850 hasConceptScore W2758875850C196558001 @default.
- W2758875850 hasConceptScore W2758875850C207857233 @default.
- W2758875850 hasConceptScore W2758875850C31972630 @default.
- W2758875850 hasConceptScore W2758875850C33923547 @default.
- W2758875850 hasConceptScore W2758875850C38349280 @default.
- W2758875850 hasConceptScore W2758875850C41008148 @default.
- W2758875850 hasConceptScore W2758875850C44154836 @default.
- W2758875850 hasConceptScore W2758875850C57879066 @default.
- W2758875850 hasConceptScore W2758875850C91188154 @default.
- W2758875850 hasLocation W27588758501 @default.
- W2758875850 hasOpenAccess W2758875850 @default.
- W2758875850 hasPrimaryLocation W27588758501 @default.
- W2758875850 hasRelatedWork W1554604048 @default.
- W2758875850 hasRelatedWork W1864307291 @default.
- W2758875850 hasRelatedWork W1975068280 @default.
- W2758875850 hasRelatedWork W1981531278 @default.
- W2758875850 hasRelatedWork W1984887361 @default.
- W2758875850 hasRelatedWork W2183167100 @default.
- W2758875850 hasRelatedWork W2194053213 @default.
- W2758875850 hasRelatedWork W2255514819 @default.
- W2758875850 hasRelatedWork W2288797370 @default.
- W2758875850 hasRelatedWork W2467823819 @default.
- W2758875850 hasRelatedWork W2518056717 @default.
- W2758875850 hasRelatedWork W2751083950 @default.
- W2758875850 hasRelatedWork W2753274252 @default.
- W2758875850 hasRelatedWork W2756738971 @default.
- W2758875850 hasRelatedWork W2784097026 @default.
- W2758875850 hasRelatedWork W2790045252 @default.
- W2758875850 hasRelatedWork W2911742126 @default.
- W2758875850 hasRelatedWork W2995287363 @default.
- W2758875850 hasRelatedWork W3127081857 @default.
- W2758875850 hasRelatedWork W262230706 @default.
- W2758875850 isParatext "false" @default.
- W2758875850 isRetracted "false" @default.
- W2758875850 magId "2758875850" @default.
- W2758875850 workType "article" @default.