O(1) transposed bilateral filtering for optimization

Kenjiro Sugimoto, Keiichiro Shirai, Seiichiro Kamata

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper presents an essential algorithm for optimization-based image processing using the bilateral filter (BLF), called constant-time transposed BLF (O(1) TBLF). Some iterative solvers for optimization problems require a pair of filters defined as multiplying a filter matrix or its transpose to vectorized images. Since the BLF can be described as a matrix form, its paired filter also exists, called a TBLF in this paper. BLF-based optimization achieves high smoothing performance; whereas, it requires much high computational complexity due to iterating both BLF and TBLF many times. Hence, this paper designs an O(1) TBLF algorithm to accelerate the iterative process. Experiments show that our O(1) TBLF runs in low complexity regardless of its filter window size and works effectively for flash/no-flash image integration via BLF-based optimization.

本文言語English
ホスト出版物のタイトル2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(印刷版)9786163618238
DOI
出版ステータスPublished - 2014 2月 12
イベント2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 - Chiang Mai, Thailand
継続期間: 2014 12月 92014 12月 12

Other

Other2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
国/地域Thailand
CityChiang Mai
Period14/12/914/12/12

ASJC Scopus subject areas

  • 信号処理
  • 情報システム

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