1. A method, comprising: receiving digital video data and motion vector information associated with the digital video data; detecting direction of at least one of color transition or brightness transition in a digital video frame of the digital video data; detecting direction of slope of an object boundary in a digital video frame of the digital video data based on the detected direction of the at least one of color transition or brightness transition; filtering motion vectors of selected pixels associated with the object boundary according to the detected direction of the object boundary; and providing a filtered vector output resulting from the filtering of the motion vectors.