In this paper, an improved 3D recursive searching (3DRS) algorithm for video de-interlacing is proposed. This algorithm solves the error propagation problem which exists in the original 3DRS by using bi-directional block matching. It also improves the precision of motion estimation by using multi-resolution searching to adjust the matching block size according to the video content. Experiments ...

Automatic IP (Intellectual Property) matching is a key to reuse of IP cores. This paper presents an IP matching algorithm that can check whether a given programmable IP block can be adapted to match a given specification. When such adaptation is possible, the algorithm also generates a device driver to adapt the IP block. Though simulation, refinement and bisimulation based algorithms exist, th...

In this paper, we proposed an improved “bottom-up” variable-size block matching method. Different from previous work, the proposed method does not need any threshold during the matching, and we just keep all the motion vectors leading to the minimum matching error. A Marco-block mode prediction method is put forward to speed up the motion estimation procedure without introducing any loss to the...

Compressed video sequences are very sensitive to channel disturbances when they are transmitted through an unreliable environment such as a wireless channel. The transmission errors not only corrupt the current decoded frame, but also propagate to the succeeding frames. Many error concealment methods have been proposed to recover the errors by exploiting temporal and spatial correlation. In thi...

In this paper, we derive optimal search patterns for fast block matching motion estimation. Since the motion search pattern is important in terms of search speed and correctness of the motion information, we consider various search patterns and search strategies. By analyzing the block matching algorithm as a function of the block size and distance in the search area, we find analytic search pa...