caa a22 4500 606199241 CHVBK 20210128100937.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s11045-013-0235-6 doi (NATIONALLICENCE)springer-10.1007/s11045-013-0235-6 Integral form 4-D light field filters using Xilinx FPGAs and 45 nm CMOS technology [Elektronische Daten] [Randeel Wimalagunarathne, Chamith Wijenayake, Arjuna Madanayake, Donald Dansereau, Len Bruton] Four-dimensional (4-D) infinite impulse response frequency hyper-planar filter and a digital VLSI architecture for real time light field based depth filtering applications is proposed. A signal flow graph based on discrete spatial integrators is introduced, which leads to improved sensitivity properties for perturbations in filter coefficients. First order sensitivity analysis of filter transfer function shows a 92.9% reduction of maximum gain error in frequency response with 12 bits of fractional precision, when compared with a direct-form architecture. Prototype FPGA hardware-in-the-loop co-simulations are performed for two different light field geometries. Register transfer level design validation is carried out via FPGA hardware emulation with a host computer providing memory buffers, and the full-design emulation is carried out on a standalone Berkely Emulation Engine (BEE3), operating at 36.44 and 37.31MHz for the two light field geometries, respectively. 45nm CMOS implementation is carried out up to the synthesis level, yielding operating frequencies of 154.4 and 153.3MHz (correspondingly frame rates of 1.15 and 18.286Hz) for the two light field geometries, respectively. Springer Science+Business Media New York, 2013 4-D filtering nationallicence Light fields nationallicence Digital architecture nationallicence Frequency-hyperplanar nationallicence Wimalagunarathne Randeel Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA aut Wijenayake Chamith Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA aut Madanayake Arjuna Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA aut Dansereau Donald Australian Centre for Field Robotics, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, Australia aut Bruton Len Department of Electrical and Computer Engineering, The University of Calgary, Calgary, AB, Canada aut Multidimensional Systems and Signal Processing Springer US; http://www.springer-ny.com 26/1(2015-01-01), 47-65 0923-6082 26:1<47 2015 26 11045 https://doi.org/10.1007/s11045-013-0235-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11045-013-0235-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wimalagunarathne Randeel Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA aut NATIONALLICENCE 700 1- Wijenayake Chamith Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA aut NATIONALLICENCE 700 1- Madanayake Arjuna Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA aut NATIONALLICENCE 700 1- Dansereau Donald Australian Centre for Field Robotics, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Bruton Len Department of Electrical and Computer Engineering, The University of Calgary, Calgary, AB, Canada aut NATIONALLICENCE 773 0- Multidimensional Systems and Signal Processing Springer US; http://www.springer-ny.com 26/1(2015-01-01), 47-65 0923-6082 26:1<47 2015 26 11045