A-61070 September 1999 A-7
Two level offset indexing When using two level offset indexing, the image address assigned to
each document is defined as follows:
• Field A (Level 1) is defined as having a field length of 0
• Field B (Level 2) is defined as having a field length greater than 0
• Field C (Level 3) is defined as having a field length of 0
• Fixed field may be defined, if desired
For example, if you scan a book with 2 chapters (Chapter 1 has 40
pages and Chapter 2 has 60 pages), the image address has been
defined:
• Field A has 0 characters
• Field B has 2 characters
• Field C has 0 characters
• Fixed field has 0 characters
Chapter 1
Header
Page 1-1
Page 1-2
Page…
Page 1-40
Chapter 2
Header
Page 2-1
Page 2-2
Pa
g
e…
Page 2-60
Image Address 01.000
Image Address 01
Image Address 01
Image Address 01
Image Address 02
Image Address 02
Image Address 02
Image Address 02
The header page for Chapter 1 is assigned image address 01. The
remaining pages of Chapter 1 are also assigned image address 01.
The header page for Chapter 2 is assigned image address 02. The
remaining pages of Chapter 2 are also assigned image address 02.
Either one of the chapter header pages may later be located and
retrieved using its unique image address. Pages within a chapter may
located and retrieved by first finding the chapter header and then
manually scrolling through the remaining pages of the chapter.