• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An?lise do comportamento de t?cnicas de correspond?ncia binocular para imagens em alta defini??o

Lopes, Sandro Bruno do Nascimento 30 July 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-23T20:02:07Z No. of bitstreams: 1 SandroBrunoDoNascimentoLopes_DISSERT.pdf: 44855381 bytes, checksum: 920f5824ac83fbeeb814ed494a6a7cc0 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-27T20:06:11Z (GMT) No. of bitstreams: 1 SandroBrunoDoNascimentoLopes_DISSERT.pdf: 44855381 bytes, checksum: 920f5824ac83fbeeb814ed494a6a7cc0 (MD5) / Made available in DSpace on 2016-06-27T20:06:11Z (GMT). No. of bitstreams: 1 SandroBrunoDoNascimentoLopes_DISSERT.pdf: 44855381 bytes, checksum: 920f5824ac83fbeeb814ed494a6a7cc0 (MD5) Previous issue date: 2015-07-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Neste trabalho, verificamos o comportamento de alguns algoritmos usualmente dispon?veis na literatura de correspond?ncia est?reo com imagens full HD (1920x1080 pixels) e estabelecemos, dentro do dilema precis?o versus tempo de execu??o, quais aplica??es estes m?-todos podem ser melhor aproveitadas. As imagens s?o obtidas por um um sistema composto por uma filmadora est?reo acoplada a um computador por meio de uma aplaca de captura. A biblioteca OpenCV ? utilizada para as opera??es de vis?o computacional e processamento de imagens envolvida, cujo projeto possui artigo publicado em congresso. Os algoritmos analisados s?o um m?todo global de busca por correspond?ncia em blocos com soma do valor absoluto das diferen?as (SAD), uma t?cnica global baseada em corte de grafos de energia, frequentemente conhecida como graph cuts, e uma uma t?cnica de correspond?ncia dita semi-global. Dentre os crit?rios estabelecidos est?o o tempo de processamento, o consumo de mem?ria e o n?mero de pixels mal-correspondidos. Como contribui??o do traballho, podemos usar as an?lises realizadas para indicar os melhores algoritmos a serem usados em diversos casos, princip?lmente usando os crit?rios de tempo real x precis?o. / This work presents an analysis of the behavior of some algorithms usually available in stereo correspondence literature, with full HD images (1920x1080 pixels) to establish, within the precision dilemma versus runtime applications which these methods can be better used. The images are obtained by a system composed of a stereo camera coupled to a computer via a capture board. The OpenCV library is used for computer vision operations and processing images involved. The algorithms discussed are an overall method of search for matching blocks with the Sum of the Absolute Value of the difference (Sum of Absolute Differences - SAD), a global technique based on cutting energy graph cuts, and a so-called matching technique semi -global. The criteria for analysis are processing time, the consumption of heap memory and the mean absolute error of disparity maps generated.

Page generated in 0.0987 seconds