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(a)
(b)
3) Letters in separate frames
This marking type is relatively effective in “disciplining” those completing the form, and the likelihood of glued
letters is low. But, as in the two previous cases, any character overlapping the borders (see fig.(b) below), is likely
to result in the disappearance of some character parts when the application separates the field borders from its
contents, thereby lowering recognition quality. For good recognition quality to be achieved, forms must be filled in
as in figure (a) below:
This marking type is relatively effective in “disciplining” those completing the form, and the likelihood of glued
letters is low. But, as in the two previous cases, any character overlapping the borders (see fig.(b) below), is likely
to result in the disappearance of some character parts when the application separates the field borders from its
contents, thereby lowering recognition quality. For good recognition quality to be achieved, forms must be filled in
as in figure (a) below:
(a)
(b)
4) Letters in frames
This marking type allows you to economize on space, but, unfortunately, allows those completing the form too much
freedom. This is because frames placed next to each other allow the use of own handwriting and, consequently,
joined-up letters. Moreover, as in previous cases, characters which overlap the borders (as in figure (b) below), can
result in certain characters not being recognized, thereby lowering recognition quality. For good recognition quality
to be achieved, forms must be filled in as in (a) below:
joined-up letters. Moreover, as in previous cases, characters which overlap the borders (as in figure (b) below), can
result in certain characters not being recognized, thereby lowering recognition quality. For good recognition quality
to be achieved, forms must be filled in as in (a) below:
(a)
(b)
5) Text in a comb-notch
The number of recognition errors due to character overlap is in this case lower, however, letters still need to be
written separately (see fig. (a)), and their height should be higher than the notch height.
The absence of strict borders between character spaces often leads those completing the form to use glued letters
(see figure (b) below), and in addition, no upper border is indicated, with the result that the letters can be of any
height.. In particular, the use of very small letters may result in the notches themselves being recognized as the digit
“1”, and included as part of the text.
Good recognition quality can only be achieved if a form is completed as in figure (a). Any deviation from this
pattern will result in a significant reduction in the recognition quality.
The number of recognition errors due to character overlap is in this case lower, however, letters still need to be
written separately (see fig. (a)), and their height should be higher than the notch height.
The absence of strict borders between character spaces often leads those completing the form to use glued letters
(see figure (b) below), and in addition, no upper border is indicated, with the result that the letters can be of any
height.. In particular, the use of very small letters may result in the notches themselves being recognized as the digit
“1”, and included as part of the text.
Good recognition quality can only be achieved if a form is completed as in figure (a). Any deviation from this
pattern will result in a significant reduction in the recognition quality.
(a)
(b)
6) Text in a frame with comb-notches
The same advantages and disadvantages apply to this marking type as to number 5. However, an additional
advantage is that the frame indicates ideal character height, and the area in which text should be entered. Again,
good recognition quality will only be achieved if a form is completed as in figure (a) below. Any deviation from this
pattern will result in a significant reduction in the recognition quality.
(a)
(b)
How to choose a form type
Besides the advantages and disadvantages of each form type listed above, other criteria also need to be taken into
consideration when choosing a form type e.g. the required degree of recognition accuracy, form processing speed,
the scanning equipment available, printing costs and methods, and the editors to be used for form creation.
consideration when choosing a form type e.g. the required degree of recognition accuracy, form processing speed,
the scanning equipment available, printing costs and methods, and the editors to be used for form creation.
Criteria for choosing the form type
Hardware
If you have a scanner with a red or a green lamp, or a color scanner with green/red software color filtering, we
recommend the use of color dropout forms. As already mentioned, the form layout completely disappears from
such forms after scanning, together with any explanatory information (completely or partially, depending on the
form design).
By using color dropout forms:
If you have a scanner with a red or a green lamp, or a color scanner with green/red software color filtering, we
recommend the use of color dropout forms. As already mentioned, the form layout completely disappears from
such forms after scanning, together with any explanatory information (completely or partially, depending on the
form design).
By using color dropout forms: