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Real Time Ellipse Detection in iOS
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IT & Programming > Mobile Applications

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Job Description

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  • Posted: Fri, May 06, 2011
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: $1,000 - $5,000
  • Fixed Price Job
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  • U.S. freelancers must have W9
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We need a library for efficient ellipse detection from an iOS device camera. The processing must be as efficient as possible so as to leave resources available for the rest of the application.

Example image, and video will be provided, but you will need to have a iOS device with camera for proper testing.

Feature Description:

Given one or more circles or ellipses in the camera's view
Given no ellipse is smaller then 5 pixels in area.
Given no ellipses overlap
Given no ellipses are contained inside of another
Given each ellipse is drawn as a black body, on a in a white field
Given images need only be evaluated in the luminance channel

Find all ellipses.
Provide center coordinate (in image space), 2d orientation, and aspect ratio of each ellipse.
Provide adjustable error metric for application level control of result exclusion based on error.

A substantial bonus for completing the library before WWDC (June 6th).

Other bonuses include:

Bonus for extending the library to efficie...

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