| 摘要 |
<p>A method of and apparatus for carrying out machine vision of an object for obtaining object data therefrom in which the object (1b) is illuminated by frequency swept ultrasonic stress wave energy from a transmitting and receiving transducer array (4), or by light energy from a source (5), reflected signals are received respectively by the array (4) and an optical-electronic camera (6), respective images in terms of the data contained in these received signals are fed to a processor (9) in which the data is analysed to make use of the best data derived from both sources of illumination and the resulting data compared with reference data to provide stimuli controlling a reject device (13) and-or positional adjustment devices (20, 22) directing the array (4) and or the camera (6).</p> |
