Show simple item record

dc.contributor.authorSousa, Éricles Rodrigues
dc.contributor.authorTanase, Alexandru
dc.contributor.authorLari, Vahid
dc.contributor.authorHannig, Frank
dc.contributor.authorTeich, Jürgen
dc.contributor.authorPaul, Johny
dc.contributor.authorStechele, Walter
dc.contributor.authorKröhnert, Manfred
dc.contributor.authorAsfour, Tamin
dc.date.accessioned2017-06-29T21:44:20Z
dc.date.available2017-06-29T21:44:20Z
dc.date.issued2013
dc.identifier.issn0177-0454
dc.description.abstractOptical flow is widely used in many applications of portable mobile de- vices and automotive embedded systems for the determination of motion of objects in a visual scene. Also in roboticsit is used for motion detection, object segmentation, time-to-contact information, focus of expansion calculations, robot navigation, and automatic parking for vehicles. Similar to many other image processing algorithms, optical flow processes pixel operations repeatedly over whole image frames. Thusit provides a high degree of fine-grained parallelism which can be efficiently exploited on massively parallel processor arrays. In this contextwe propose to accelerate the computation of complex motion estimation vectors on programmable tightly-coupled processor arrays, which offer a high flexibility enabled by coarse-grained reconfiguration capabilities. Novel is also that the degree of parallelism may be adapted to the number of processors that are available to the application. Finallywe present an implementation that is 18 times faster when compared to (a) an FPGA-based soft processor implementationand (b) may be adapted regarding different QoS requirements, hence, being more flexible than a dedicated hardware implementation.en
dc.language.isoen
dc.publisherGesellschaft für Informatik e.V., Fachgruppe PARS
dc.relation.ispartofPARS-Mitteilungen: Vol. 30, Nr. 1
dc.titleAcceleration of Optical Flow Computations on Tightly-Coupled Processor Arraysen
dc.typeText/Journal Article
dc.pubPlaceBerlin


Files in this item

Thumbnail

Show simple item record