公开(公告)号：DE3065520D1

公开(公告)日：1983-12-15

申请号：DE3065520

申请日：1980-07-10

Applicant: IBM

Inventor： KANTOR SHERWOOD PARK LANE ROAD ,  MADDOX RANDALL ADRIAN ,  YOSIM PAUL STEWART

IPC: H04N1/387 ,  G06K9/32 ,  G06T1/00 ,  H04N1/00 ,  H04N1/047 ,  H04N1/10 ,  H04N1/113 ,  H04N1/19 ,  H04N1/193

Abstract: Deformities in electronic images produced by a multiple array scanner 10 are corrected by using the scanner to generate an electronic image of a reference pattern 62 disposed at the document platen of the scanner, storing that electronic image in a memory 72, producing skew, misalignment and misabutment signals by analysing the stored image and using the correction signals to produce a corrected electronic image of the reference pattern and to correct the electronic images of originals subsequently scanned by the scanner. The reference pattern consists of a horizontal line which is used to correct deformities in the images due to misalignment and skew associated with the arrays and a vertical line which is used to correct deformities in the images due to misabutment between the arrays. A pointer system 74, 76 associated with the memory is used to identify a sequence of locations in the memory.