Informação de contexto aplicada à detecção de pedestres

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dc.contributor.advisorMarengoni, Maurício
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/1974791787566027por
dc.contributor.authorCândido, Jorge
dc.creator.Latteshttp://lattes.cnpq.br/4857187085058251por
dc.date.accessioned2019-10-15T18:58:50Z
dc.date.accessioned2020-05-28T18:08:03Z
dc.date.available2020-05-28T18:08:03Z
dc.date.issued2019-02-14
dc.description.abstractThe detection of objetcs in digital images is one of the most studied and developed subjects within the computer vision field. Unlike the problem of object identification, where the basic task is classify objects into predefined classes, object detection has the difficult task of searching the entire image and answering the following questions: how many objects are in the image and what is the location of these objects? When the object being searched is a pedestrian, it is characterized the problem of pedestrian detection. In this research project we evaluated the use of additional information in the scene, here called context information, aiding the task of pedestrians detection. The context information explored in this research were the presence of floor area and the relationship between the pedestrian height and the pedestrian vertical position within the image. The information of floor area presence is obtained by means of an artificial neural network that classifies a region in the image as belonging or not to a floor area. The neural network is applied in an area below the bounding box that delimits a pedestrian detection candidate. The relationship between the pedestrian height and the pedestrian vertical position is obtained by the bounding box at the output of the pedestrian detection algorithm. Based on a statistical model, this relationship represents additional information that may indicate that the pedestrian detected by the algorithm represents a false positive and can be eliminated from the final result. This additional information is incorporated into the detector information improving its accuracy. Based on the tests performed in this thesis, we can say that the use of this additional information considerably improves the precision in the pedestrian detection algorithms proposed in the literature, considerably reducing the number of false positiveseng
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dc.identifier.citationCÂNDIDO, Jorge. Informação de contexto aplicada à detecção de pedestres. 2019. 80 f. Tese (Engenharia Elétrica) - Universidade Presbiteriana Mackenzie, São Paulo, 2019.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24298
dc.keywordspedestrian detectioneng
dc.keywordsneural networkeng
dc.keywordsdecision treeeng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectdetecção de pedestrespor
dc.subjectrede neuralpor
dc.subjectárvore de decisãopor
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::ELETRONICA INDUSTRIAL, SISTEMAS E CONTROLES ELETRONICOS::AUTOMACAO ELETRONICA DE PROCESSOS ELETRICOS E INDUSTRIAISpor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/19958/JORGE%20CANDIDO.pdf.jpg*
dc.titleInformação de contexto aplicada à detecção de pedestrespor
dc.typeTesepor
local.contributor.board1Silva, Leandro Augusto da
local.contributor.board1Latteshttp://lattes.cnpq.br/1396385111251741por
local.contributor.board2Vinhas, Lúbia
local.contributor.board2Latteshttp://lattes.cnpq.br/6187040703676041por
local.contributor.board3Gonzaga, Adilson
local.contributor.board3Latteshttp://lattes.cnpq.br/2971568649949171por
local.contributor.board4Martins, Valeria Farinazzo
local.contributor.board4Latteshttp://lattes.cnpq.br/9004497626504668por
local.publisher.countryBrasilpor
local.publisher.departmentEscola de Engenharia Mackenzie (EE)por
local.publisher.initialsUPMpor
local.publisher.programEngenharia Elétricapor
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Engenharia Elétrica e Computação - Teses - EE Higienópolis