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Local Characterisation and Detection of Woven Fabric Texture Based on a Sparse Dictionary


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Fig. 1

Procedure of fabric characterisation and defect detection
Procedure of fabric characterisation and defect detection

Fig. 2

Flow chart of a small patch partition
Flow chart of a small patch partition

Fig. 3

Visual reconstruction samples with different dictionary sizes: (a) reconstruction of plain fabric image; (b) reconstruction of twill fabric image.
Visual reconstruction samples with different dictionary sizes: (a) reconstruction of plain fabric image; (b) reconstruction of twill fabric image.

Fig. 4

Representation result of the fabric samples with different dictionary sizes k: (a) PSNR; (b) SSIM
Representation result of the fabric samples with different dictionary sizes k: (a) PSNR; (b) SSIM

Fig. 5

Representation results for two fabric samples: (a) and (b) are plain fabric's PSNR and SSIM for different patch sizes with various sparse cardinality T; (c) and (d) are twill fabric's PSNR and SSIM for different patch sizes with various sparse cardinality T
Representation results for two fabric samples: (a) and (b) are plain fabric's PSNR and SSIM for different patch sizes with various sparse cardinality T; (c) and (d) are twill fabric's PSNR and SSIM for different patch sizes with various sparse cardinality T

Fig. 6

Original fabric sample with different weave patterns: (a) plain, (b) twill, (c) weft satin,(d) warp satin, (e) basket weave, (f) honeycomb, (g) compound twill, (h) diamond twill
Original fabric sample with different weave patterns: (a) plain, (b) twill, (c) weft satin,(d) warp satin, (e) basket weave, (f) honeycomb, (g) compound twill, (h) diamond twill

Fig. 7

Reconstructed fabric samples: (a) plain, (b) twill, (c) weft satin, (d) warp satin, (e) basket weave, (f) honeycomb, (g) compound twill, (h) diamond twill.
Reconstructed fabric samples: (a) plain, (b) twill, (c) weft satin, (d) warp satin, (e) basket weave, (f) honeycomb, (g) compound twill, (h) diamond twill.

Fig. 8

Representation results of all test samples; (a) PSNR, (b) SSIM
Representation results of all test samples; (a) PSNR, (b) SSIM

Fig. 9

Fabric defect detection result
Fabric defect detection result

Texture period for various weave patterns, for every weave pattern, the left is warp period and the right is weft period

No. Sample Plain twill warp satin weft satin basket weave honey comb compound twill diamond twill
1 11 17 14 14 5 19 15 14 11 10 5 5 20 22 25 20
2 6 7 7 10 5 5 13 17 8 7 10 10 11 18 17 9
3 3 3 6 7 14 17 14 10 6 8 9 12 11 13 16 9
4 7 7 8 6 12 13 6 16 7 7 16 14 15 12 12 9
5 11 8 9 9 28 14 17 23 6 6 9 26 13 12 28 28
Average 8 8 9 9 13 14 13 16 8 8 10 13 14 15 20 15