Title :
Sparse two-dimensional FIR digital filters design using FISTA
Author :
Tao Hong ; Huang Bai ; Yabin Wei ; Jie Yang ; Zhihui Zhu
Author_Institution :
Zhejiang Key Lab. for Signal Process., Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
An efficient algorithm described in this brief is proposed for designing two-dimensional (2D) linear-phase finite impulse response (FIR) digital filters. This algorithm is inspired by the methods described in [11], [14]. The proposed algorithm handles the problem on L1-L2 formula directly and does not recast the problem to Quadratic Programming (QP) shown in [11]. Moreover, the choice of trade-off parameter arises in L1-L2 is studied in this paper. Two examples are presented to illustrate our new algorithm.
Keywords :
FIR filters; iterative methods; quadratic programming; two-dimensional digital filters; 2D linear-phase finite impulse response digital filter; L1-L2 formula; QP; fast iterative shrinkage-thresholding algorithm; quadratic programming; sparse two-dimensional fir digital filter; Algorithm design and analysis; Finite impulse response filters; Frequency response; Optimization; Signal processing algorithms; Vectors; 2D; FIR; L1-L2; linear-phase; sparse;
Conference_Titel :
Image and Signal Processing (CISP), 2014 7th International Congress on
Conference_Location :
Dalian
DOI :
10.1109/CISP.2014.7003889
