Zhang Cheng-feng

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With the aim of speeding up coding procedure, it is of great importance to improve the efficiency of motion estimation, which is time-consuming in video coding. A strategy of fast searching based on the fact that moving objects maintain their size and direction in neighboring frames is proposed. Firstly, the starting point in searching is located with the(More)
It frequently generates vibration in machining, which interferences and disruptions normal cutting process, worsens the machining accuracy and the surface quality and lessens productiveness. The generation of vibration is related to the dynamic characteristics of process systems consisting of machine tools, fixtures, tool and workpiece. It detailed analyzes(More)
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