| 摘要 |
Digital image processing apparatus (10) for correlating a reference image with an input image at a plurality of correlation positions and for determining a position of best registration thereof includes image data input means (12) for receiving digital data representing the pixel values of said input image, a series of processing cells (40) connected one to another and to said image input means (12) for receiving data there substantially in parallel. Each processing cell (40) includes means (50, 52) for storing a respective reference value representing the value of an associated pixel in the reference image, means for performing a correlation operation on the reference value stored in the processing cell (40) and the input image data supplied to the processing cell to determine partial correlation data, and partial correlation data output means for outputting partial correlation data, wherein each processing cell downstream of the first cell in the series includes partial correlation data input means for receiving the partial correlation data from the previous cell (40), and the last processing cell in the series has correlation data output means for outputting a stream of digital correlation data indicating the degree of correlation at each of the correlation positions. <IMAGE> |
