DocumentCode :
2611988
Title :
Enhanced Omnidirectional Image Reconstruction Algorithm and Its Real-Time Hardware
Author :
Akin, Abdulkadir ; Erdede, Elif ; Afshari, Hossein ; Schmid, Alexandre ; Leblebici, Yusuf
Author_Institution :
Microelectron. Syst. Lab., Swiss Fed. Inst. of Technol. (EPFL), Lausanne, Switzerland
fYear :
2012
fDate :
5-8 Sept. 2012
Firstpage :
907
Lastpage :
914
Abstract :
Omnidirectional stereoscopy and depth estimation are complex problems of image processing to which the Panoptic camera offers a novel solution. The Panoptic camera is a biologically-inspired vision sensor made of multiple cameras. It is a polydioptric system mimicking the eyes of flying insects where multiple imagers, each with a distinct focal point, are distributed over a hemisphere. Recently, the omnidirectional image reconstruction algorithm (OIR) and its real-time hardware implementation have been proposed for the Panoptic camera. This paper presents an enhanced omnidirectional image reconstruction algorithm (EOIR) and its real-time implementation. The proposed EOIR algorithm provides improved realistic omnidirectional images and residuals compared to OIR. As a processing core of EOIR, 57% of the available slice resources in a Virtex 5 FPGA are consumed. The proposed platform provides the high bandwidth required to simultaneously process data originating from 40 cameras, and reconstruct omnidirectional images of 256x1024 pixels at 25 fps. This proposed hardware and algorithmic enhancements enable advanced real-time applications including omnidirectional image reconstruction, 3D model construction and depth estimation.
Keywords :
field programmable gate arrays; image reconstruction; image resolution; real-time systems; 3D model construction; EOIR algorithm; OIR; Panoptic camera; Virtex 5 FPGA; advanced real-time applications; biologically-inspired vision sensor; depth estimation; distinct focal point; enhanced omnidirectional image reconstruction algorithm; flying insects; image processing; improved realistic omnidirectional images; omnidirectional stereoscopy; polydioptric system; real-time hardware implementation; Algorithm design and analysis; Cameras; Hardware; Image reconstruction; Image resolution; Interpolation; Real-time systems; Angle of View; Hardware Implementation; Multiple Camera System; Omnidirectional Image Reconstruction;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Digital System Design (DSD), 2012 15th Euromicro Conference on
Conference_Location :
Izmir
Print_ISBN :
978-1-4673-2498-4
Type :
conf
DOI :
10.1109/DSD.2012.52
Filename :
6386990
Link To Document :
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