| 摘要 |
PURPOSE:To remarkably reduce the hardware scale of a moving vector detection circuit. CONSTITUTION:After finding the intermediate value of the luminance of a noted block by means of a mean value circuit 17, picture elements in the noted block and a retrieval area are binarized by means of binarization circuits 19, 20, and 21 by using the intermediate value as a threshold. A pattern matching circuit 2 examines the degree of picture element matching on all vectors. Whenever a better matching picture element appears, the circuit 23 updates the values of registers 25 and 26 to each component of the vector outputted from a control circuit 22. |
