The search functionality is under construction.

IEICE TRANSACTIONS on Fundamentals

Random-Valued Impulse Noise Removal Using Non-Local Search for Similar Structures and Sparse Representation

Kengo TSUDA, Takanori FUJISAWA, Masaaki IKEHARA

  • Full Text Views

    0

  • Cite this

Summary :

In this paper, we introduce a new method to remove random-valued impulse noise in an image. Random-valued impulse noise replaces the pixel value at a random position by a random value. Due to the randomness of the noisy pixel values, it is difficult to detect them by comparison with neighboring pixels, which is used in many conventional methods. Then we improve the recent noise detector which uses a non-local search of similar structure. Next we propose a new noise removal algorithm by sparse representation using DCT basis. Furthermore, the sparse representation can remove impulse noise by using the neighboring similar image patch. This method has much more superior noise removal performance than conventional methods at images. We confirm the effectiveness of the proposed method quantitatively and qualitatively.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E100-A No.10 pp.2146-2153
Publication Date
2017/10/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E100.A.2146
Type of Manuscript
PAPER
Category
Image

Authors

Kengo TSUDA
  Keio University
Takanori FUJISAWA
  Keio University
Masaaki IKEHARA
  Keio University

Keyword