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Concept of Linguistic Variable-Based Fuzzy Ensemble Approach: Application to Interlaced HDTV Sequences

Authors
Jeon, GwanggilAnisetti, MarcoLee, JoohyunBellandi, ValerioDamiani, ErnestoJeong, Jechang
Issue Date
Dec-2009
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Deinterlacing; fuzzy ensemble approach; fuzzy weight (FW); linguistic variable; type-1 fuzzy system
Citation
IEEE TRANSACTIONS ON FUZZY SYSTEMS, v.17, no.6, pp.1245 - 1258
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON FUZZY SYSTEMS
Volume
17
Number
6
Start Page
1245
End Page
1258
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175775
DOI
10.1109/TFUZZ.2009.2026638
ISSN
1063-6706
Abstract
This paper addresses the problem of edge restoration in digital images. Taking advantage of an ensemble approach, multiple type-1 fuzzy filters are combined to reach a decision. The fuzzy logic concept for linguistic variables and possibility theory is discussed with regard to knowledge representation and inference procedures. To improve conventional deinterlacing issues, we adopt type-1 fuzzy set concepts to design a weight-measuring approach. We demonstrate that the fuzzy ensemble approach model is well suited to image processing and provide case studies in the video-deinterlacing field. In our proposed method, five fuzzy membership functions (MFs) of linguistic variable-based fuzzy logic filters are derived from the type-1 (a.k.a. ordinary or primary) fuzzy MF. The weight-measuring process of our proposed model is used to assign weights to six candidate deinterlaced pixels (CDPs) that are interpolated according to edge direction. The use of a different MF for each direction allows the filter to characterize each pixel variation influence independently, according to its direction. The weights from all MFs are multiplied with the CDPs. The results of the empirical trials clearly show that the proposed system can successfully deal with several image types containing motion or detail elements.
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COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)
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