Patent ID: 7593059
Filing Date: 2009-09-22
Classification: H04N

Abstract:
1. An image conversion device, comprising: a detection block to receive three consecutive input fields including a first field, a second field as an interpolation target field, and a third field, to determine which of the first field and the third field has a smaller difference value in field data with respect to the second field, and to determine whether one of the first and third fields has a motion change that is greater than a predetermined threshold with respect to the second field; and an interpolation block to interpolate the second field by determining a selected motion estimation value between the second field and the one of the first and third fields having the smaller difference value, determining a third motion estimation value between the first field and the third field, applying different weights to the selected and third motion estimation values depending on whether one of the first and third fields has the motion change that is greater than the predetermined threshold, and mixing the weighted selected and third motion estimation values.