Patent ID: 8115865
Filing Date: 2012-02-14
Classification: H04N

Abstract:
1. A de-interlacing system with an adaptive edge threshold, which receives a video datastream consisting of plural fields, each said field having plural rows of pixels arranged in a two-dimension array, and interpolates additional pixels, each said additional pixel locating at a position of the field, to thereby increase the resolution of field, the de-interlacing system comprising: a motion factor generator, which receives a previous field and a next field respectively adjacent to a current field to thereby produce a motion factor for the position; an adaptive edge threshold generator, which receives the current field, the previous field and the next field to thereby produce an adaptive edge threshold for the position; and a determinator, which is connected to the motion factor generator and the adaptive edge threshold generator in order to determine which pixels are used to perform an interpolation on the position in accordance with the motion factor and the adaptive edge threshold; wherein a pixel of the current field is used to perform the interpolation on the position when the motion factor is greater than the adaptive edge threshold, a pixel of the previous field and a pixel of the next field are used to perform an interpolation on the position when the motion factor is smaller than the adaptive edge threshold, and the pixels of the current field, the previous field and the next field are weighted to perform an interpolation on the position when the motion factor is between a high adaptive edge threshold and a low adaptive edge threshold.