| 摘要 |
PURPOSE:To execute the pattern matching with two images in optional shift quantity by using the pattern matching between reference and an objective image to be recognized in a wide area and processing it at high speed. CONSTITUTION:As the shape of an object in the object of the image 203b be the reference and the shape of the object to be recognized 203a are almost the same, they must coincide by overlapping the objects of the respective display screen of them. At this time, when EX-OR is taken, the value of respective picture elements are made to be zero and the sum of them is nearly zero even when they are added extending to the wide area. Therefore, when the object to be recognized has a little dislocation, the display screen of the fetched object to be recognized 203a and the reference display screen 203 are shifted in a horizontal direction or a vertical direction and a shift position which the area of a part where they do not coincide (that means, the sum of the said EX-OR) is made to be the smallest is found. Thus, the objective image to be recognized 203a in the respective display screens can be relatively moved to the same place and the moving amount by the shifting of that time can be obtained as dislocation amount. |
