Accurate motion detection and sawtooth artifacts remove video processing engine for LCD TV

In this paper a video processing engine with accurate motion detection and sawtooth artifacts remove capabilities for LCD TV is proposed. Since the accuracy of the motion detection is key factor to obtain excellent visual quality pictures, by incorporating the temporal and spatial information of video fields and sophisticated detection schemes, the goal can be obtained. Also, a novel window-expanding search approach for low-angle edge detection/interpolation to remove the sawtooth artifacts, which occur on the edges/lines of fast moving images while doing the de-interlacing, is proposed. To validate the proposed methods and consider the bandwidth requirement, an FPGA-based system for real-time emulation and verification is implemented. And, from the real-time emulation results, it can be seen that the proposed algorithm has quite good performance in terms of obtaining good visual quality images.