LINE SENSOR CALIBRATION VALUE CALCULATION DEVICE, TARGET USED FOR THE DEVICE, OBJECT MEASURING SYSTEM, LINE SENSOR CALIBRATION VALUE CALCULATION METHOD, LINE SENSOR CALIBRATION VALUE CALCULATION PROGRAM, AND STORAGE MEDIUM RECORDING THE PROGRAM

摘要

PPROBLEM TO BE SOLVED: To easily calculate a calibration value that is a numerical value necessary for calibration of a line sensor. PSOLUTION: The calibration value calculation device 13 for calculating a calibration value comprises a storage part 17 storing the actual dimension of a calibration pattern applied to a target to be read by the line sensor 14 as actual dimension data 24; and a control part 16 controlling operations of the calibration value calculation device 13. In the control part 16, an image acquisition part 20 acquires an image of the calibration pattern from the line sensor 14, an on-image dimension calculation part 22 calculates an on-image dimension of the calibration pattern from the acquired image of the calibration pattern, and an inclination/magnification calculation part 23 specifies a geometric positional relation of the line sensor and the calibration pattern to a sub-scanning direction by use of the calculated on-image dimension of the calibration pattern and the actual dimension data 24 stored by the storage part 17, whereby the calibration value such as inclination or magnification is calculated. PCOPYRIGHT: (C)2008,JPO&INPIT