How form elements are recognized

Below is information and examples on how Aspose.OMR for .NET recognizes different types of elements in forms.

WriteIn

Show / hide details

Mapping

The image of the WriteIn field is stored as System.Drawing.Bitmap object in Images collection. It does not appear in CSV / JSON / XML recognition results.

Example

See Processing write-in fields for details.

Barcode

Show / hide details

Mapping

Recognition result Value
Element Name name property of the Barcode element.
Value Decoded barcode.

Example

Element Name,Value,
QR code,“https://products.aspose.com/omr/net/"

Question (ChoiceBox)

Show / hide details

Mapping

Recognition result Value
Element Name Question{number}
Value Marked bubbles, separated by commas.

Example

Element Name,Value,
Question1,"A,C"

CheckBox

Show / hide details

Mapping

Recognition result Value
Element Name name property of the CheckBox element.
Value Marked boxes, separated by commas.

Example

Element Name,Value,
Food preference:,"Vegan,Low-carb"

VerticalChoiceBox

Show / hide details

Mapping

Recognition result Value
Element Name name property of the VerticalChoiceBox element.
Value Marked answers, separated by commas.

Example

Element Name,Value,
Definition,"1"

ScoreGroup

Show / hide details

Mapping

Recognition result Value
Element Name
  • For each ScoreQuestion element, an entry with name property of ScoreQuestion element is added.
  • For each ScoreQuestion element, an entry with name property of ScoreQuestion element and _total suffix is added.
  • For the entire ScoreGroup element, the entry with name property of ScoreGroup element and _total suffix is added.
Value
  • Marked evaluation criteria for each ScoreQuestion element, separated by commas.
  • Aggregated score for each ScoreQuestion element.
  • Total score for the entire ScoreGroup element.

Example

Element Name,Value,
How would you rate our services?,"The staff was friendly and helpful,Management was available to solve problems"
How would you rate our services?_total,"3"
Satisfaction survey_total,"3"

Table

Show / hide details

Mapping

Recognition result Value
Element Name name property of each Question element.
Value Marked answer text.

Example

Element Name,Value,
Are you satisfied with Aspose.OMR for .NET performance?,"I don't know"
Are you satisfied with Aspose.OMR for .NET recognition accuracy?,"Yes"
Is Aspose.OMR for .NET easy to use?,"Yes"

Answer Sheet

Show / hide details

Mapping

Recognition result Value
Element Name name property of each Question element followed by the question number.
Value Answer.

Example

Element Name,Value,
Exam1,"C"
Exam2,"A"
Exam3,"D"
Exam4,"E"
Exam5,"B"
Exam6,"B"
Exam7,"B"
Exam8,"E"
Exam9,"A"
Exam10,"C"
Exam11,"D"
Exam12,"B"
Exam13,"D"
Exam14,"E"
Exam15,"A"

Grid

Show / hide details

Mapping

Recognition result Value
Element Name name property of the Grid element.
Value Numbers from each marked bubble merged into a single number. If more than one bubble is marked per row / column, all marked numbers are merged into the result.

Example

Element Name,Value,
Phone number,"1234567"

CustomAnswerSheet

Show / hide details

Mapping

Recognition result Value
Element Name name property of the CustomAnswerSheet element followed by underscore and the question number.
Value Answer.

Example

Element Name,Value,
Example_1,"A"
Example_2,"C"
Example_3,"D"
Example_4,"C"
Example_5,"B"
Example_6,"A"
Example_7,"A"
Example_8,"C"
Example_9,"D"
Example_10,"D"
Example_11,"B"
Example_12,"B"
Example_13,"A"
Example_14,"D"
Example_15,"C"

CompositeGrid

Show / hide details

Mapping

Recognition result Value
Element Name name property of the CompositeGrid element.
Value Symbols from each marked bubble merged into a single value. If more than one bubble are marked per row / column, an error is written into the results.

Example

Element Name,Value,
Security word 1,"SECRET"
Security word 2,"ERROR: Multiple marks per symbol"
Processing write-in fields Working with UI control