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AssigneeU.S. Philips Corporation
InventorRaoul Florent
Estimating the term…
A method for temporal filtering of noise in an image of a sequence of digital images, formed as from a first instant (to) until a last instant (t), with pixels having intensity values which correspond to each instant and are referred to as samples, includes an evaluation, for a given pixel, of a temporally filtered sample (Ptp) of the last instant by means of a first linear combination of the filtered sample (Pt-1c) of the last instant by means of a first linear combination of the filtered sample (Pt-1c) of the last instant but one whereto a first weight (W1) has been assigned, and the noisy sample (ItP) of the last instant, modulated by a second weight (W2) which is a probability value (W2=βtp) concerning absence of a noise peak in this sample.
A method for temporal filtering of noise in an image of a sequence of digital images, each image being in the form of two-dimensional matrices of pixels, the sequence being formed from a first instant until a present instant (t), said pixels having intensity values which correspond to each instant and are referred to as noisy samples, the method comprising:
An image filtering device comprising:
Dependencies are inferred from the claim text.