TY - GEN
T1 - Random-valued impulse noise removal using non-local search for similar structures and sparse representation
AU - Tsuda, Kengo
AU - Fujisawa, Takanori
AU - Ikehara, Masaaki
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/5/30
Y1 - 2018/5/30
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85048831508&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85048831508&partnerID=8YFLogxK
U2 - 10.1109/IWAIT.2018.8369628
DO - 10.1109/IWAIT.2018.8369628
M3 - Conference contribution
AN - SCOPUS:85048831508
T3 - 2018 International Workshop on Advanced Image Technology, IWAIT 2018
SP - 1
EP - 4
BT - 2018 International Workshop on Advanced Image Technology, IWAIT 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 International Workshop on Advanced Image Technology, IWAIT 2018
Y2 - 7 January 2018 through 9 January 2018
ER -