Method for reducing noise and jitter effects in kvm systems

Details Method for reducing noise and jitter effects in kvm systems Method for reducing noise and jitter effects in kvm systems

H - Electricity

04

N

H04N 7/36 (2006.01) H04L 12/26 (2006.01) H04N 17/00 (2006.01)

Patent

CA 2503400

In KVM systems for comparing new video frames to references frames to update video, a method of reducing the effects of noise comprising (I) determining the differences between the sets of pixel values for new and reference pixels to produce a difference set of difference elements for each pixel; (ii) weighting the absolute value of each difference element within the difference set (iii) summing the weighted difference elements over all of the pixels of the horizontal line of the sub-block to produce a weighted difference element sum; (iv) determining whether the weighted difference element sum exceeds a predetermined sum threshold; (v) if yes, determining that the sub-block has changed so as to require updating.

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