The Proposed Solution to Some Issues of Optical Mark Reader

Research Area: Volume 10,Issue 3,May, 2021 Year: 2021
Type of Publication: Article Keywords: Image Processing, Bubble Detection, Optical Mark Reader
Authors:
  • Dr. Asmaeil Ammarah Abdullah Balq
Journal: IJEIR Volume: 10
Number: 3 Pages: 123-133
Month: May
ISSN: 2277-5668
Abstract:
The aim of this work is to develop optical mark recognition technology to overcome common students’ mistakes during filling answers sheets that caused students to fail their exams. OMR cannot process some common the different issues. Such as if the bubble is not dark enough pencil, marks touch adjacent bubble, incomplete mark covering and if any scribbling is found, that answer sheet will be strictly rejected. They may not be read correctly. All these above issues that matter of the students to avoided by a new technique that overcomes the limitation of OMR process. The method is based on drawing grid the regions of interest, key points detection algorithm and bubbles detection algorithm. In the bubbles detection algorithm based on three factors (bubble size, threshold value, percentage of filling the bubble). The implementation helps us to identify errors and how to solve them. The proposed system consists of an ordinary printer, scanner and a computer.

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