| 摘要 |
Method and apparatus (10) for detecting commercial variations in at least a portion of an at least partially transparent container (12). A light pattern (FIG. 7A) in an angular domain is established from signals generated by a plurality of light sensors (24), wherein a point in the light pattern is generated by a signal from a corresponding portion of the light sensors and represents a light intensity corresponding to a particular reflection angle of a light ray reflected off the container. Different types of commercial variations in the container can be differentiated by analyzing the light pattern in the angular domain. |
