| 摘要 |
PURPOSE:To realize the function superimposing a screen, by compensating an address data of a memory in response to the amount of optical axis movement between a camera attitude angle and a frame for compensating the amount of optical axis movement. CONSTITUTION:An output of a delay circuit 4 is the camera attitude angle signal of a preceding frame and a subtractor 5 subtracts the camera attitude angle data of the preceding frame from that of the present frame, and the result is outputted as the optical axis moving amount between frames. The address data is outputted from a counter 2. When a clock is at H level, the address data correcting the amount of optical axis movement is outputted from an adder 7, and when the clock is at L level, the address data without compensating the amount of optical axis is outputted. The data of a memory 1 corresponding to them are averaged with weighting and stored in the address not compensating the amount of optical axis movement of the memory 1. |
