Logo recognition is a subcategory of form recognition. When scanning it may easily happen that there is paper skew. This in turn may cause troubles for the form recognition as it is dependent on the exact position of the objects to be recognized.
Logo recognition means that the logo previously stored in the system is recognized on the page. On the basis of the logo's position the system is enabled to decide whether there was paper skew during the scanning process and to correct this, if necessary, in order that the form may be recognized without any problems.