Illumination spectrum recovery

Robles-Kelly, Antonio and Huynh, CP 2019, Illumination spectrum recovery, Other international (5) Patent WO/2011/026167.

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Title Illumination spectrum recovery
Creator(s) Robles-Kelly, AntonioORCID iD for Robles-Kelly, Antonio
Huynh, CP
Date 2019
Patent no. WO/2011/026167
Patent owner NICTA
Registry Office Other international (5)
Summary The disclosure concerns processing of electronic images, such as hyperspectral, multispectral or trichromatic images. In particular, but is not limited to, a method, software and computer for estimating parameters of a reflectance model applied to an image is disclosed. Examples of processing of the images using the estimated parameters includes material recognition, re-coloring and re-shading of objects represented in the image. That is, a computer implemented method is provided of estimating one or more of photogrammetric parameters, Ω(u) surface shape N and index of refraction n(u,λ) represented in a reflectance image having one or more known illumination directions L and a known viewing direction V, the method comprising optimizing (802) the difference between the reflectance image and a reflectance model, the reflectance model being based on surface shape N; the material index of refraction n(u,λ) and a set of photogrammetric parameters Ω(u).
Notes Also published as EP2473834, US20120183213, CN102597744, AU2010291852, AU2015202072, US8953906B2
Language eng
Indigenous content off
HERDC Research category I.1 Patents
Persistent URL

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