On the use of orientation filters for 3D reconstruction in event-driven stereo vision

The recently developed Dynamic Vision Sensors (DVS) sense visual information asynchronously and code it into trains of events with sub-micro second temporal resolution. This high temporal precision makes the output of these sensors especially suited for dynamic 3D visual reconstruction, by matching...

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Detalhes bibliográficos
Autores: Camuñas Mesa, Luis Alejandro, Serrano Gotarredona, María Teresa, Leng, Sío H., Benosman, Ryad B., Linares Barranco, Bernabé
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2014
País:España
Recursos:Universidad de Sevilla (US)
Repositório:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/69323
Acesso em linha:https://hdl.handle.net/11441/69323
https://doi.org/10.3389/fnins.2014.00048
Access Level:Acceso aberto
Palavra-chave:Stereovision
Neuromorphic vision
Address Event Representation (AER)
Event-driven processing
Convolutions
Gabor filters
Descrição
Resumo:The recently developed Dynamic Vision Sensors (DVS) sense visual information asynchronously and code it into trains of events with sub-micro second temporal resolution. This high temporal precision makes the output of these sensors especially suited for dynamic 3D visual reconstruction, by matching corresponding events generated by two different sensors in a stereo setup. This paper explores the use of Gabor filters to extract information about the orientation of the object edges that produce the events, therefore increasing the number of constraints applied to the matching algorithm. This strategy provides more reliably matched pairs of events, improving the final 3D reconstruction.