High Quality Image Correction Algorithm with Cubic Interpolation and its Implementation of Dedicated Hardware Engine for Fish-eye Lens

Takahiro Mori, Satoshi Goto, Takeshi Ikenaga, Motonobu Tonomura, Yuuji Ohsumi

Research output: Contribution to journalArticle

2 Citations (Scopus)


This paper proposes an interpolation algorithm and LSI architecture for a camera with a fish-eye lens. Since the fish-eye lens has around 180 degree field of view and a deep depth of field, it's very promising for a surveillance camera, a video conference system, and so on. Combination of a cubic spline interpolation and a direct interpolation from a RAW image enable to obtain high quality image. A three-stage linear interpolation scheme and a dedicate operators boost up processing performance. Evaluation results base on a subjective test show that our proposed algorithm can generate high-quality interpolation image. Furthermore, a dedicated image processing core with 290k gates can process HDTV (1920x1080, 60 fps) image by using 0.18 µm CMOS technology.

Original languageEnglish
Pages (from-to)680-687
Number of pages8
JournalJournal of the Institute of Image Electronics Engineers of Japan
Issue number5
Publication statusPublished - 2007



  • cubic interpolation
  • fish-eye lens
  • image correction

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering

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