| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a reader in which a business form is imaged and its content is recognized based on a format definition, where the effect of fluctuation in distance between an imaging part and a business form is suppressed. <P>SOLUTION: In a business form reader, an address label attached on the upper surface of a parcel is imaged from above using an imaging part 20 fixed to a stand. The actual fineness that fluctuates according to height of a parcel is calculated by imaging a guide 31 of known dimension which is disposed on the upper surface of the parcel. The zooming factor of a lens 21 is controlled so that the actual fineness agrees with a specified fineness which is specified by a format definition used for recognizing the content of the address label. With this configuration, a difference between the actual fineness and the specified fineness is compensated for improved content recognition accuracy of the address label even if the height of parcels is not constant. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
