| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for realizing high speed and highly precise pattern matching for the pictures of all properties by reducing operation quantity compared to conventional one without lacking information of the input picture. SOLUTION: A reference picture is divided into plural templates. One arbitrary template among them is selected as a reference template. The correlation coefficients of the reference template and the picture being an inspection object in respective scanning positions are calculate while only the reference template is scanned on the picture being the inspection object. Only when the correlation coefficient of the reference template is more than a threshold which is previously set, the correlation coefficients of the other templates are calculated. When all the correlation coefficients of all the templates are more than the threshold, the position of the reference picture at that time is stored as one of candidates. Then, the presence or absence and the existing position of the inspection object are recognized based on the correlation coefficients of all the candidates after scanning terminates. |
