Method, device and system for estimating a pose of a camera

Abstract

A method and device are described for time aligning a current frame of a current video stream with respect to reference frames of a reference video stream, the current video stream corresponding to at least one part of the reference video stream. The method includes: obtaining at least two reference frames corresponding to at least part of at least some of multiple displayed frames displayed on a display; obtaining current frame from images of said displayed frames captured with a camera by shooting said display; and determining a time alignment of said current frame with respect to said at least two reference frames by correlating said current frame with a time interpolation of said at least two reference frames. The time interpolation being based on correlations between the current frame and respectively each of the at least two reference frames, and on at least one correlation between at least two of the selected reference frames together.

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