| 摘要 |
PURPOSE: To accurately perform the pattern matching processing by providing a weight coefficient memory part where a weight coefficient preliminarily set for each frame of a standard pattern is stored and using the weight coefficient to perform the pattern matching operation. CONSTITUTION: A standard pattern ai is inputted from a standard pattern memory 1 to a buffer 5, and an input pattern bj is inputted to a buffer 4. Weight coefficientsα,β, andγof a recurrent formula preliminarily set for each frame of the standard pattern are stored in a weight coefficient memory 2. When a corresponding pattern is loaded to buffers 4 and 5, an operation circuit 3 executes DP matching operation. At this time, weight coefficientsα,β, andγare loaded from the memory 2 to the circuit at each time of execution of the recurrence formula of frames, and the circuit 3 outputs an operation result (g). Since the weight coefficient can be changed in accordance with the weight of the inclination limit required by each frame in this manner, the pattern matching processing is accurately performed.
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