Enhancement Algorithm of Fractional Differential Medical Images Based on Local Binary Pattern Variance

Hongpu Liu; Mengjing Zheng; Xiangdan Hou; Bocen Li; Jiazhuo Du

doi:10.3788/LOP56.091006

Laser & Optoelectronics Progress, Volume. 56, Issue 9, 091006(2019)

Enhancement Algorithm of Fractional Differential Medical Images Based on Local Binary Pattern Variance

Hongpu Liu^1,2,3, Mengjing Zheng^1,3, Xiangdan Hou^1,3、*, Bocen Li^1,3, and Jiazhuo Du^1,3

Author Affiliations

¹ School of Artificial Intelligence, Hebei University of Technology, Tianjin 300401, China

² School of Electrical Engineering, Hebei University of Technology, Tianjin 300401, China

³ Hebei Provincial Key Laboratory of Big Data Computing, Tianjin 300401, China

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Figures & Tables(13)

Fig. 1. LBP mode

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Fig. 2. Circular neighborhood system

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Fig. 3. Diagram of unified LBP mode when P=8

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Fig. 4. Mode and mode frequency map of textured image

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Fig. 5. Angle and mode frequency map of textured image

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Fig. 6. Eight directions of LBPV

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Fig. 7. Fractional masks for eight directions. (a) 0°; (b) 45°; (c) 90°; (d) 135°; (e) 180°; (f) 225°; (g) 270°; (h) 315°

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Fig. 8. Original images and enhanced images. (a) Original images; (b) enhanced images of Fig. 8(a); (c) original images; (d) enhanced images of Fig. 8(c)

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Fig. 9. Enhanced images of humeral head and its local images with different methods. (a) Original images; (b) method in Ref. [5]; (c) method in Ref. [6]; (d) method in Ref. [9]; (e) proposed method

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Fig. 10. Enhanced images of tibia and its local images with different methods. (a) Original images; (b) method in Ref. [5]; (c) method in Ref. [6]; (d) method in Ref. [9]; (e) proposed method

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Table 1. Evaluation parameters of each image in Fig. 8

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Table 1. Evaluation parameters of each image in Fig. 8

Image	AG	E	Image	AG	E
Fig. 8(a1)	6.68	5.75	Fig. 8(a3)	4.75	5.42
Fig. 8(b1)	10.92	6.24	Fig. 8(b3)	8.75	6.00
Fig. 8(c1)	4.41	5.65	Fig. 8(c3)	3.03	4.44
Fig. 8(d1)	7.42	5.95	Fig. 8(d3)	5.48	5.09
Fig. 8(a2)	5.06	4.82	Fig. 8(a4)	4.79	5.47
Fig. 8(b2)	9.53	5.70	Fig. 8(b4)	8.34	5.88
Fig. 8(c2)	3.32	5.27	Fig. 8(c4)	2.98	4.27
Fig. 8(d2)	5.55	5.61	Fig. 8(d4)	5.71	4.99

Table 2. Evaluation parameters of each image in Fig. 9
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Table 2. Evaluation parameters of each image in Fig. 9
Image AG E
Fig. 9(a) 7.37 4.97
Fig. 9(b) 11.83 5.14
Fig. 9(c) 8.36 4.98
Fig. 9(d) 17.41 5.27
Fig. 9(e) 12.00 5.33

Table 3. Evaluation parameters of each image in Fig. 10
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Table 3. Evaluation parameters of each image in Fig. 10
Image AG E
Fig. 10(a) 8.83 4.52
Fig. 10(b) 11.23 4.57
Fig. 10(c) 9.00 4.42
Fig. 10(d) 14.09 4.63
Fig. 10(e) 11.61 4.80

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Hongpu Liu, Mengjing Zheng, Xiangdan Hou, Bocen Li, Jiazhuo Du. Enhancement Algorithm of Fractional Differential Medical Images Based on Local Binary Pattern Variance[J]. Laser & Optoelectronics Progress, 2019, 56(9): 091006

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