Iee International Electronics and Engineering S.a.

Cedric Schockaert

Bruno Mirbach

Frederic Garcia Becerro

A method and system for real-time motion artifact handling and noise removal for time-of-flight (ToF) sensor images. The method includes: calculating values of a cross correlation function c(&#x3c4;) at a plurality of temporally spaced positions or phases from sent (s(t)) and received (r(t)) signals, thereby deriving a plurality of respective cross correlation values [c(&#x3c4;), c(&#x3c4;), c(&#x3c4;), c(&#x3c4;)]; deriving, from the plurality of cross correlation values [c(&#x3c4;), c(&#x3c4;), c(&#x3c4;), c(&#x3c4;)], a depth map D having values representing, for each pixel, distance to a portion of an object upon which the sent signals (s(t)) are incident; deriving, from the plurality of cross correlation values [c(&#x3c4;), c(&#x3c4;), c(&#x3c4;), c(&#x3c4;)], a guidance image (I; I'); and generating an output image D&#x2032; based on the depth map D and the guidance image (I; I&#x2032;), the output image D&#x2032; comprising an edge-preserving and smoothed version of depth map D, the edge-preserving being from guidance image (I; I&#x2032;).

Method and system for real-time motion artifact handling and noise removal for ToF sensor images

A method and system for real-time noise removal and image enhancement of high-dynamic range (HDR) images. The method includes receiving an HDR input image I and operating processing circuitry for (i) applying a first edge-preserving filter (e.g. guided filter) to the input image I, thereby generating a first image component Band a first set of linear coefficients &#x101;; (ii) applying a second edge-preserving filter (e.g. guided filter) to the input image I, thereby generating a second image component Band a second set of linear coefficients &#x101;; (iii) generating a plausibility mask P from a combination of the first set of linear coefficients &#x101;and the second set of linear coefficients &#x101;, the plausibility mask P indicating spatial detail within the input image I; and (iv) generating an output image O based on first image component B, the second image component Band the plausibility mask P.

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Waldbillig, Luxembourg

Cedric Schockaert