Process OMR Answer Sheets

Process OMR Answer Sheets

Configure OMR templates, scan answer sheets, and automatically grade objective exams.

Time: 15–30 minutes for setup, 1–2 minutes per sheet Module: OpenEduCat OMR Permissions: OMR User or OMR Manager

---

Prerequisites

• Exam module configured
• Subjects defined
• OMR scanner or camera setup
• Pre-printed OMR sheets
• Access to OMR menu

---

Overview

The OMR (Optical Mark Recognition) system enables:

• OMR template configuration
• Answer sheet scanning
• Automatic grading
• Multiple paper sets support
• Student result tracking
• Portal-based OMR submission
• Detailed answer analysis

---

OMR Workflow

Create OMR Template
        ↓
Configure Answer Sheet
        ↓
Create OMR Exam
        ↓
Upload/Scan Images
        ↓
Process OMR Sheets
        ↓
Generate Results

State	Description
Draft	Exam created
In Progress	Sheets being scanned
Processed	Results generated
Published	Results visible to students

---

Steps

1. Create OMR Template

Define the OMR sheet format:

1. Navigate to OMR → Configuration → Templates
2. Click New
3. Configure the template:

Field	Action
Template Name	Descriptive name
Question Options	Number of options (A-D, A-E, etc.)
JSON Data	Template coordinates

4. Click Save

Question Options:

• 4 Options (A, B, C, D)
• 5 Options (A, B, C, D, E)
• True/False (A, B)

2. Configure Answer Sheet

Create answer key configuration:

1. Navigate to OMR → Answer Sheet Configuration
2. Click New
3. Complete the configuration:

Field	Action
Answer Sheet Name	Configuration name
Subject	Select subject

4. Navigate to Answer Sets tab
5. Add paper sets (if multiple versions)

3. Create Answer Set

For each paper version:

1. In answer sheet configuration
2. Click Add a line under Answer Sets
3. Configure:

Field	Action
Paper Set	Version identifier (A, B, C)

4. Add question answers:

Field	Action
Question Number	Question sequence
Answer	Correct option (A/B/C/D)

5. Repeat for all questions
6. Click Save

Example: 50 Question Exam

Question	Answer
1	B
2	A
3	D
…	…
50	C

4. Create OMR Exam

Set up the examination:

1. Navigate to OMR → OMR Exams
2. Click New
3. Complete the exam form:

Field	Action
Exam Name	Exam title
Subject	Select subject
Template	Select OMR template
Answer Sheet	Select answer configuration
Allow Student Upload	Enable portal submission
Display Result to Student	Show results in portal

4. Click Save

5. Upload OMR Images

Add scanned answer sheets:

1. Open OMR exam record
2. Navigate to OMR Images tab
3. Click Add a line
4. For each image:

Field	Action
Name	Sheet identifier
Image	Upload scanned image

5. Upload all answer sheets
6. Click Save

Image Requirements:

• Clear, high-resolution scan
• Proper alignment
• Minimal shadows
• Standard OMR sheet format

6. Process Answer Sheets

Generate results from scans:

1. Open OMR exam

2. Click Process Sheets

3. System analyzes images:

   • Detects marked answers
   • Matches with answer key
   • Calculates scores

4. Results appear in Answer Sheets tab

7. Review Results

Check processed results:

1. Navigate to Answer Sheets tab
2. For each sheet, view:

Field	Description
Roll Number	Student identifier
Paper Set	Answer set used
Right Answers	Correct count
Wrong Answers	Incorrect count
Not Attempted	Unanswered
Score	Total score

3. Click individual sheet for details

8. Verify Individual Answers

Review question-wise results:

1. Open answer sheet record
2. Navigate to Question Answers tab
3. For each question, see:

Field	Description
Question	Question number
Answer	Student’s answer
State	Correct/Incorrect

4. Verify any disputed answers

9. Publish Results

Make results available:

1. Open OMR exam
2. Enable Display Result to Student
3. Click Publish
4. Students can view via portal

10. Student Portal Upload (Optional)

If student upload enabled:

1. Student logs into portal
2. Navigates to OMR section
3. Uploads answer sheet image
4. System processes automatically
5. Results displayed after processing

---

Field Reference

OMR Template (op.omr.template)

Field	Technical Name	Type	Required	Description
Template Name	name	Char	Yes	Template identifier
Question Options	question_option	Selection	No	A-D, A-E, etc.
JSON Data	json_data	Char	No	Coordinate mapping

Answer Sheet Configuration (op.answersheet.configuration)

Field	Technical Name	Type	Required	Description
Name	name	Char	Yes	Configuration name
Subject	subject_id	Many2one	Yes	Target subject
Answer Sets	answer_set_line	One2many	No	Paper versions
Company	company_id	Many2one	No	Company

Answer Set (op.answer.set)

Field	Technical Name	Type	Required	Description
Paper Set	paper_set	Char	Yes	Version (A/B/C)
Questions	question_answer_line	One2many	No	Answer key
OMR Exam	omr_exam_id	Many2one	No	Linked exam
Configuration	answersheet_configuration_id	Many2one	No	Parent config

Question Answer (op.question.answer)

Field	Technical Name	Type	Required	Description
Question	question	Integer	Yes	Question number
Answer	answer	Char	Yes	Correct answer
Answer Set	answer_set_id	Many2one	No	Parent set
State	state	Selection	No	Correct/Incorrect

OMR Exam (op.omr.exam)

Field	Technical Name	Type	Required	Description
Exam Name	name	Char	Yes	Exam title
Subject	subject_id	Many2one	Yes	Subject
Template	template_id	Many2one	Yes	OMR template
Answer Sheet	answersheet_configuration_id	Many2one	Yes	Answer config
OMR Images	omr_image_line	One2many	No	Scanned images
Answer Sheets	answer_sheets_line	One2many	No	Results
State	state	Selection	No	Exam status
Allow Student Upload	is_student_upload_omr	Boolean	No	Portal upload
Display Result	display_result	Boolean	No	Show to student
Sheet Count	answersheet_count	Integer	Computed	Total sheets

Answer Sheet Result (op.answer.sheets)

Field	Technical Name	Type	Required	Description
Roll Number	roll_number	Char	No	Student roll
Paper Set	key_type	Char	No	Answer set used
Right Answers	right_answer	Integer	No	Correct count
Wrong Answers	wrong_answer	Integer	No	Incorrect count
Not Attempted	not_attampted	Integer	No	Blank count
Score	score	Integer	No	Total score
Student	student_id	Many2one	No	Student record
OMR Exam	omr_exam_id	Many2one	No	Parent exam
Image	image	Binary	No	Sheet image
State	state	Selection	No	Process state
Portal URL	access_url	Char	No	Portal link

OMR Image (op.omr.image)

Field	Technical Name	Type	Required	Description
Name	name	Char	No	Image name
Image	image	Binary	No	Sheet scan
OMR Exam	omr_exam_id	Many2one	No	Parent exam

---

Views Available

View	Features
List	Exams with sheet counts
Form	Full exam details
Kanban	Visual exam cards

OMR Dashboard

Managers see:

• Total exams processed
• Sheets scanned
• Average scores
• Processing queue

---

Portal Features

Student Portal

Students can:

• Upload OMR images (if enabled)
• View exam results
• See question-wise analysis
• Download result report

---

Troubleshooting

Issue	Cause	Solution
Processing failed	Poor image quality	Re-scan with better settings
Wrong answers	Template mismatch	Verify template coordinates
Student not matched	Roll number unclear	Manual assignment
Score incorrect	Answer key error	Verify answer set
Blank detection	Light marks	Adjust sensitivity

---

Best Practices

1. Quality scans: Use 300 DPI minimum
2. Consistent format: Use standard OMR sheets
3. Multiple sets: Create different paper versions
4. Verification: Spot-check processed results
5. Backup keys: Keep answer keys secure
6. Timely processing: Process soon after exam

---

Security Notes

Role	Capabilities
OMR Manager	Full CRUD, processing
OMR User	Upload and view
Faculty	View subject results
Student	View own results (portal)

---

Integration Features

Exam Integration

• Link to exam sessions
• Result transfer
• Grade calculation

Subject Integration

• Subject-wise answer keys
• Topic-wise analysis
• Performance tracking

Result Integration

• Grade book update
• Transcript inclusion
• Report generation

---

Reports

Report	Description
OMR Results	Sheet-wise scores
Question Analysis	Question difficulty
Student Performance	Individual analysis
Batch Summary	Class statistics

---

Related Tasks

• Manage Examinations
• Configure Grading
• Generate Results