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Architecture, Design, and Experimental Evaluation of a Lightfield Descriptor Depth Buffer Algorithm on Reconfigurable Logic and on a GPU

Matina Lakka, Grigorios Chrysos, Ioannis Papaefstathiou, Apostolos Dollas
IEEE 19th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 2011

@inproceedings{lakka2011architecture,

   title={Architecture, Design, and Experimental Evaluation of a Lightfield Descriptor Depth Buffer Algorithm on Reconfigurable Logic and on a GPU},

   author={Lakka, M. and Chrysos, G. and Papaefstathiou, I. and Dollas, A.},

   booktitle={IEEE International Symposium on Field-Programmable Custom Computing Machines},

   pages={57–64},

   year={2011},

   organization={IEEE}

}

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The Light field descriptor method for 3D computer graphics offers the highest quality object retrieval from a database at the expense of higher storage and computational cost vs. other methods. This paper presents two special purpose architectures, based on FPGAs and GPUs, for the depth buffer extraction algorithm which is used by the Light field Descriptor method. The two architectures were fully designed and implemented in hardware on a Virtex 5 FPGA Device and on a Ge Force GPU. The FPGA-based design offers a measured average speedup of 50x vs. software. The corresponding GPU results were by comparison less promising, but still better than software solutions. Results reported in this paper are from actual runs on hardware.
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