Abstract

Due to the limited depth-of-field of optical lenses, it is difficult to get an image with all objects in focus. One way to overcome this problem is to take several images with different focus points and combine them into a single composite which contains all the regions full focused. This paper describesa pixel-clarity-based multifocus image fusion algorithm. The characteristic of this approach is that the pixels of the fused image are selected from the clearest pixels in the input images according to pixel clarity criteria. For each pixel in the source images, the pixel clarity is calculated. The fusion procedure is performed by a selection mode according to the magnitude of pixel clarity. Consistency verification is performed on the selected pixels. Experiments show that the proposed algorithm works well in multifocus image fusion.

© 2005 Chinese Optics Letters

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  1. Z. Zhang and R. S. Blum, Proceedings of IEEE 87, 1315 (1999).
  2. Z. Zhang and R. S. Blum, in Proceedings of 30th Conference on CISS (March 1997).
  3. H. Li, B. S. Manjunath, and S. K. Mitra, Graphical Models and Image Processing 57, 235 (1995).
  4. S. T. Li, Y. N. Wang, and L. Z. Gong, Systems Engineering and Electronics (in Chinese) 24, 45 (2002).
  5. S. T. Li, Y. N. Wang, and C. F. Zhang, Acta Electron. Sin. 29, 1699 (2001).
  6. S. T. Li, T. K. James, and Y. N. Wang, Pattern Recogn. Lett. 23, 985 (2002).
  7. J. W. Huang, Y. Q. Shi, and X. H. Dai, Image Graphics 4, 400 (1999).

2002 (2)

S. T. Li, Y. N. Wang, and L. Z. Gong, Systems Engineering and Electronics (in Chinese) 24, 45 (2002).

S. T. Li, T. K. James, and Y. N. Wang, Pattern Recogn. Lett. 23, 985 (2002).

2001 (1)

S. T. Li, Y. N. Wang, and C. F. Zhang, Acta Electron. Sin. 29, 1699 (2001).

1999 (2)

Z. Zhang and R. S. Blum, Proceedings of IEEE 87, 1315 (1999).

J. W. Huang, Y. Q. Shi, and X. H. Dai, Image Graphics 4, 400 (1999).

1995 (1)

H. Li, B. S. Manjunath, and S. K. Mitra, Graphical Models and Image Processing 57, 235 (1995).

Blum, R. S.

Z. Zhang and R. S. Blum, Proceedings of IEEE 87, 1315 (1999).

Dai, X. H.

J. W. Huang, Y. Q. Shi, and X. H. Dai, Image Graphics 4, 400 (1999).

Gong, L. Z.

S. T. Li, Y. N. Wang, and L. Z. Gong, Systems Engineering and Electronics (in Chinese) 24, 45 (2002).

Huang, J. W.

J. W. Huang, Y. Q. Shi, and X. H. Dai, Image Graphics 4, 400 (1999).

James, T. K.

S. T. Li, T. K. James, and Y. N. Wang, Pattern Recogn. Lett. 23, 985 (2002).

Li, H.

H. Li, B. S. Manjunath, and S. K. Mitra, Graphical Models and Image Processing 57, 235 (1995).

Li, S. T.

S. T. Li, Y. N. Wang, and L. Z. Gong, Systems Engineering and Electronics (in Chinese) 24, 45 (2002).

S. T. Li, T. K. James, and Y. N. Wang, Pattern Recogn. Lett. 23, 985 (2002).

S. T. Li, Y. N. Wang, and C. F. Zhang, Acta Electron. Sin. 29, 1699 (2001).

Manjunath, B. S.

H. Li, B. S. Manjunath, and S. K. Mitra, Graphical Models and Image Processing 57, 235 (1995).

Mitra, S. K.

H. Li, B. S. Manjunath, and S. K. Mitra, Graphical Models and Image Processing 57, 235 (1995).

Shi, Y. Q.

J. W. Huang, Y. Q. Shi, and X. H. Dai, Image Graphics 4, 400 (1999).

Wang, Y. N.

S. T. Li, T. K. James, and Y. N. Wang, Pattern Recogn. Lett. 23, 985 (2002).

S. T. Li, Y. N. Wang, and L. Z. Gong, Systems Engineering and Electronics (in Chinese) 24, 45 (2002).

S. T. Li, Y. N. Wang, and C. F. Zhang, Acta Electron. Sin. 29, 1699 (2001).

Zhang, C. F.

S. T. Li, Y. N. Wang, and C. F. Zhang, Acta Electron. Sin. 29, 1699 (2001).

Zhang, Z.

Z. Zhang and R. S. Blum, Proceedings of IEEE 87, 1315 (1999).

Acta Electron. Sin. (1)

S. T. Li, Y. N. Wang, and C. F. Zhang, Acta Electron. Sin. 29, 1699 (2001).

Graphical Models and Image Processing (1)

H. Li, B. S. Manjunath, and S. K. Mitra, Graphical Models and Image Processing 57, 235 (1995).

Image Graphics (1)

J. W. Huang, Y. Q. Shi, and X. H. Dai, Image Graphics 4, 400 (1999).

Pattern Recogn. Lett. (1)

S. T. Li, T. K. James, and Y. N. Wang, Pattern Recogn. Lett. 23, 985 (2002).

Proceedings of IEEE (1)

Z. Zhang and R. S. Blum, Proceedings of IEEE 87, 1315 (1999).

Systems Engineering and Electronics (in Chinese) (1)

S. T. Li, Y. N. Wang, and L. Z. Gong, Systems Engineering and Electronics (in Chinese) 24, 45 (2002).

Other (1)

Z. Zhang and R. S. Blum, in Proceedings of 30th Conference on CISS (March 1997).

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