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EURASIP Journal on Image and Video Processing

Table 2 Numerical comparison of Chan [32], Liu [11], CATVOGSL2, and CITVOGSL2 for images (a)–(c) in Fig. 5

From: New inexact explicit thresholding/shrinkage formulas for inverse problems with overlapping group sparsity

Images

(a) Man

(b) Car

(c) Parlor

Method

μ

Itr

PSNR

Time

ReE

Itr

PSNR

Time

ReE

Itr

PSNR

Time

ReE

Chan [32]

0.5

15

30.34

6.02

0.0730

11

31.13

2.00

0.0426

12

31.70

2.01

0.0511

Liu [11]

1

12

30.60

9.06

0.0708

12

31.68

3.93

0.0386

13

32.46

4.21

0.0464

CAOL2

1

7

30.62

3.37

0.0711

9

31.68

1.76

0.0399

7

32.40

1.34

0.0472

CIOL2

1

8

30.59

3.70

0.0716

11

31.60

2.04

0.0403

8

32.03

1.61

0.0492

  1. PSNR dB, Time s, Itr iterations, μ regularization parameter (×105), CAOL2 CATVOGSL2, CIOL2 CITVOGSL2
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