Patent ID: 7616693

Claim:
A method for detecting video field motion between adjacent video field pairs of opposite parity, the method comprising: receiving pixels from a first video field of a specified parity via a first pixel data read module; receiving pixels from a second video field of an opposite parity to the specified parity via a second pixel data read module, the second video field being one of a preceding video field and a subsequent video field to the first video field; combining the first video field and the second video field to form a pixel frame comprising the combined pixels from the first and second video fields using a motion measurement module component; selecting, using the motion measurement module component, a set of pixels vertically adjacent to a specified video pixel position in the pixel frame, wherein the specified video pixel position corresponds to a position of a missing pixel in the first video field and wherein the selected set of pixels comprises a first subset of pixels from the first video field and a second subset of pixels from the second video field; measuring signal values of the set of selected pixels using the motion measurement module component; detecting a signal frequency of the Nyquist rate in a vertical direction based on the measured signal values of the set of selected pixels using the motion measurement module component; and determining a motion measurement corresponding to the specified video pixel position based on an amplitude of the detected signal frequency of the Nyquist rate, wherein determining the motion measurement comprises determining a positive value according to at least one of the following: D 1 =min( S 1 )−max( S 2 ); D 2 =min( S 2 )−max( S 1 ), wherein S 1 comprises the first subset of pixels from the first video field and S 2 comprises the second subset of pixels from the second video field.