International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.7, No.5, Apr. 2015

Generation of Undistorted Photomosaics of Cylindrical Vesicular Basalt Specimens

Full Text (PDF, 893KB), PP.13-19

Views:60   Downloads:0


Alan Harris, Ratna S. Medapati, O. Patrick Kreidl, Nick Hudyma, Travis Waldorf

Index Terms

Photomosaic;Image Stitching;Geotechnical Imaging;Vesicular Basalt


Photographic documentation of prepared rock core specimens may be required for scientific studies. For specimens that have surface features which vary circumferentially, it is advantageous to have a single photomosaic of the specimen surface rather than a series of surface photographs. A technique to develop a photomosaic from a series of overlapping images of prepared vesicular basalt core specimens is presented. The overlapping images of the specimen surface are subjected to an initial cropping, a geometric transformation, an intensity interpolation, a final cropping, and an image stitching algorithm. The final result is an undistorted photomosaic of the entire specimen surface. All steps except the initial cropping are implemented within MATLAB®.

Cite This Paper

Alan Harris, Ratna S. Medapati, O. Patrick Kreidl, Nick Hudyma, Travis Waldorf,"Generation of Undistorted Photomosaics of Cylindrical Vesicular Basalt Specimens", IJIGSP, vol.7, no.5, pp.13-19, 2015.DOI: 10.5815/ijigsp.2015.05.02


[1]ASTM Standard D5709, 2008, "Standard Practices for Preserving and Transporting Rock Core Samples," ASTM International, West Conshohocken, PA, 2008.

[2]EM 1110-1804, 2001, "Geotechnical Investigations", US Army Corps of Engineers.

[3]Schepers, R., Rafat, G., Gelbke, C., and Lehmann, B., 2001. "Application of borehole logging, core imaging and tomography to geotechnical exploration" International Journal of Rock Mechanics & Mining Sciences 38 (2001) 867–876,

[4]Trewin, B., Wiseman, M., and Oguz, E., 1996. "Digital core imaging – methodologies, benefits and applications" Extended abstracts book: 58th European Association of Geoscientists and Engineers, Amsterdam, The Netherlands, June 3-7, 1996 

[5]Walls, J.D. and Sinclair, S.W. Eagle Ford Shale Reservoir Properties from Digital Rock Physics, First Break 29 (6): 97-100, 2011.

[6]Rassenfoss, S., 2011. "Digital rocks out to become a core technology", Journal of Petroleum Technology, pp. 36-41, May 2011.

[7]McMillan, K., 2008. "An inexpensive system for continuous lake core photography", Journal of Paleolimnology, Volume 40, pp. 1179-1184,

[8]Beggan, C. and Hamilton, C.W., 2010. "New image processing software for analyzing object size-frequency distributions, geometry, orientation, and spatial distributions", Computers & Geosciences, 36, 539-549,

[9]Brown, J.A., Ashlock, D. Orth, J. Houghten, S, "Autogeneration of fractal photographic mosaic images," IEEE Congress on Evolutionary Computation, 2011.

[10]Hudyma, N., Harris, A., Nguyen, K., and Edgar, J., 2011, "Development of an automated laboratory core specimen photography system", CD-ROM Proceedings of the 45th US Rock Mechanics/Geomechanics Symposium (G. Esterhuizen and A. Tutuncu, eds.), June 26-29, 2011, San Francisco, CA.

[11]Apostol, T.M. and Mnatsakanian, M.A., 2007. "Unwrapping curves from cylinders and cones", The Mathematical Association of America Monthly, 114, 388-416.

[12]Gonzalez, R.C. and Woods, R.E., 2008. Digital Image Processing, 3rd edn., Prentice Hall, New York, NY, 954 pp.