Autofocus and fusion using nonlinear correlation
- Departamento de Investigación en Física, Universidad de Sonora (UNISON), Luis Encinas y Rosales S/N, Col. Centro, Hermosillo, Sonora C.P. 8300 (Mexico)
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), División de Física Aplicada, Departamento de Óptica, Carretera Ensenada-Tijuana No. 3918, Fraccionamiento Zona Playitas, Ensena (Mexico)
- Departamento de Investigación en Física, Universidad de Sonora (UNISON), Luis Encinas y Rosales S/N, Col. Centro, Hermosillo, Sonora C,.P. 83000 (Mexico)
In this work a new algorithm is proposed for auto focusing and images fusion captured by microscope's CCD. The proposed algorithm for auto focusing implements the spiral scanning of each image in the stack f(x, y){sub w} to define the V{sub w} vector. The spectrum of the vector FV{sub w} is calculated by fast Fourier transform. The best in-focus image is determined by a focus measure that is obtained by the FV{sub 1} nonlinear correlation vector, of the reference image, with each other FV{sub W} images in the stack. In addition, fusion is performed with a subset of selected images f(x, y){sub SBF} like the images with best focus measurement. Fusion creates a new improved image f(x, y){sub F} with the selection of pixels of higher intensity.
- OSTI ID:
- 22307920
- Journal Information:
- AIP Conference Proceedings, Vol. 1618, Issue 1; Conference: ICCMSE 2014: International conference on computational methods in science and engineering 2014, Athens (Greece), 4-7 Apr 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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