Shape and photometric invariants recovery from polarisation images

Robles-Kelly, Antonio and Huynh, CP 2019, Shape and photometric invariants recovery from polarisation images, Australia (1) Patent AU2011242408.

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Title Shape and photometric invariants recovery from polarisation images
Creator(s) Robles-Kelly, AntonioORCID iD for Robles-Kelly, Antonio orcid.org/0000-0002-2465-5971
Huynh, CP
Date 2019
Patent no. AU2011242408
Patent owner NICTA
Registry Office Australia (1)
Summary The disclosure concerns processing of electronic images, such as hyperspectral, or multispectral images. In particular, but is not limited to, a method, software and computer for estimating shape information or a photometric invariant of a location of image of a scene. The image data (300) indexed by wavelength λ and polarisation filter angle ϑ. For each wavelength λ index, a polarisation angle φ is estimated from the image data (300) by the processor (810). The processor (810) then also estimates the shape information (such as azimuth a, zenith Θ, or surface normal) or photometric invariants (such as refractive index) based on the estimated polarisation angle φ for each wavelength index λ. Greater accuracies can be achieved in the estimated shape information and/or photometric invariants by using wavelength-indexed data. Further, surface information or photometric invariant can be estimated based upon polarisation in a single-view hyperspectral or multi-spectral imagery. Further, by relying on the polarisation angle for the estimation, the method is insensitive to changes in illumination power and direction.
Notes Also published as AU2010901672, EP2561482, US20130202214, WO/2011/130793
Language eng
Indigenous content off
HERDC Research category I.1 Patents
Persistent URL http://hdl.handle.net/10536/DRO/DU:30124171

 
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Created: Fri, 28 Jun 2019, 14:59:49 EST

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