A new iterative reconstruction scheme for signal reconstruction

Author

Huang, Honglin ; Makur, Anamitra

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

336

Lastpage

339

Abstract

Projection Onto Convex Sets (POCS) is an iterative method to obtain the information from one domain using the information available in other domains, and it has been widely used in image restoration problems and block-based DCT compression standards as a post-processing scheme. In this paper, we study an iterative signal reconstruction method for signal reconstruction and sparse signal compression. This method is similar to POCS method. From known partial time-domain samples and partial frequency-domain coefficients, it iteratively projects the signal onto the known samplespsila subspaces and the known coefficientspsila subspaces. Finally the signal can recover closely by using this iterative reconstruction scheme. Some experiments show this method can correctly and effectively reconstruct the underlying signals.

Keywords

data compression; discrete cosine transforms; image coding; image reconstruction; iterative methods; DCT compression standards; image restoration; iterative reconstruction scheme; partial frequency-domain coefficients; post-processing scheme; projection onto convex sets; signal reconstruction; sparse signal compression; Convergence; Decoding; Discrete cosine transforms; Hilbert space; Image coding; Image reconstruction; Image restoration; Iterative methods; Signal reconstruction; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on

Conference_Location

Macao

Print_ISBN

978-1-4244-2341-5

Electronic_ISBN

978-1-4244-2342-2

Type

conf

DOI

10.1109/APCCAS.2008.4746028

Filename

4746028