Patent ID: 6707852
Filing Date: 2004-03-16
Classification: H04N

Abstract:
A method for encoding a motion video signal, the method comprising:comparing first and second frames of the motion video signal to one another; determining whether the second frame represents a scene change in a motion video image represented by the motion video image by: measuring a difference between the first and second frames; filtering the difference with a previously filtered difference to form a filtered difference; comparing the filtered difference to a threshold; determining that the second frame represents the scene change if the filtered difference is greater than the threshold; and determining that the second frame does not represent the scene change if the filtered difference is not greater than the threshold; encoding the second frame as an independent frame upon a condition in which the second frame represents the scene change in the motion video image; and encoding the second frame as a motion-compensated frame upon a condition in which the second frame does not represent the scene change in the motion video image.