68/2008 : Flexible Hardware-based Stereo Matching

RR Number

68/2008

Conference

EURASIP Journal on Embedded Systems, vol. 2008, Article ID 386059, 12 pages. doi:10.1155/2008/386059

Author(s)

K. Ambrosch, Martin Humenberger, Wilfried Kubinger, Andreas Steininger

Abstract

To enable adaptive stereo vision for hardwarebased embedded stereo vision systems, we propose a novel technique for implementing a flexible block size, disparity range, and frame rate. By reusing existing resources of a static architecture, rather than dynamic reconfiguration, our technique is compatible with Application Specific Integrated Circuit (ASIC) as well as Field Programmable Gate Array (FPGA) implementations. We present the corresponding block diagrams and their implementation in our hardware-based stereo matching architecture. Furthermore, we show the impact of flexible stereo matching on the generated disparity maps for the Sum of Absolute Differences (SAD), rank, and census transform algorithms. Finally, we discuss the resource usage and achievable performance when synthesized for an Altera Stratix II FPGA.

Bibtex

@article{ ambrosch:2008-68,
  author =       "K. Ambrosch and Martin Humenberger and Wilfried Kubinger and Andreas Steininger",
  title =        "Flexible Hardware-based Stereo Matching",
  journal =      "EURASIP Journal on Embedded Systems, vol. 2008, Article ID 386059, 12 pages. doi:10.1155/2008/386059",
  year =         "2008",
  month =        "Dec."
}

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