go to Caltech Home
home current exhibition submission archive about us contact
    Nano Fathom  


next image

Kenny Oslund
Undergraduate Student

To analyze the radii and density of nanowires per square micrometer of substrate, an algorithm determines which patch of pixels belongs to a particular nanowire. The algorithm first detects edges (the black lines in the second image) and removes the background (the sky blue color). Then it determines, by flood filling, contiguous patches that are bounded by the background or an edge; each contiguous patch is a potential nanowire. The number of patches in a given area is counted and the radius of each patch is determined. To visualize how well the algorithm identifies nanowires, each patch of pixels that was determined to be a nanowire is assigned a color, generating the image.


go to top




The 2008 Art of Science Competition was made possible by a grant from the Moore-Hufstedler Fund.
© 2018 California Institute of Technology. All Rights Reserved.