Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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High-Performance and Low-Complexity Image Pre-Processing Method Based on Gradient-Vector Characteristics and Hardware-Block Sharing

  • Kim, Woo Suk (Electrical, Electronic, and Control Engineering, Han-Kyong University) ;
  • Lee, Juseong (Center of Human-centered Interaction for Coexistence) ;
  • An, Ho-Myoung (Department of Electronics, Osan University) ;
  • Kim, Jooyeon (School of Electrical Electronics Engineering, Ulsan College)
  • Received : 2017.07.12
  • Accepted : 2017.08.23
  • Published : 2017.12.25
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Abstract

In this paper, a high-performance, low-area gradient-magnitude calculator architecture is proposed, based on approximate image processing. To reduce the computational complexity of the gradient-magnitude calculation, vector properties, the symmetry axis, and common terms were applied in a hardware-resource-shared architec-ture. The proposed gradient-magnitude calculator was implemented using an Altera Cyclone IV FPGA (EP4CE115F29) and the Quartus II v.16 device software. It satisfied the output-data quality while reducing the logic elements by 23% and the embedded multipliers by 76%, compared with previous work.

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References

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