It is a device that is used to read marked data from document forms such as tests or surveys.Some OMR devices uses dedicated scanner.It consist of a light source and light detector.When light falls on the paper it reflects it.Intensity of reflected light is more where paper is blank whereas darken areas of paper reflects less light.
In some OMR trans optic papers are used.when light is passed through paper,the intensity of light received at another end is low from darken areas and intensity is high from blank areas of paper.This combination of high low intensity is converted into binary values.OMR has the advantage that unlike OCR no complicated pattern recognition engine is required.Marks are constructed in such a way that their is no chance of error.
The Most common example of OMR is the answer sheet of competitive examinations in which applicats marks their answer with pencil by darkening specified areas.Various OMR softwares are used by the OMR scanners for process surveys, test or attendance etc.Some of them are:Remark Office OMR, Smart Mark Reader, Udai OMR, SQS etc.
Figure Given shows a sample of OMR sheet
In some OMR trans optic papers are used.when light is passed through paper,the intensity of light received at another end is low from darken areas and intensity is high from blank areas of paper.This combination of high low intensity is converted into binary values.OMR has the advantage that unlike OCR no complicated pattern recognition engine is required.Marks are constructed in such a way that their is no chance of error.
The Most common example of OMR is the answer sheet of competitive examinations in which applicats marks their answer with pencil by darkening specified areas.Various OMR softwares are used by the OMR scanners for process surveys, test or attendance etc.Some of them are:Remark Office OMR, Smart Mark Reader, Udai OMR, SQS etc.
Figure Given shows a sample of OMR sheet
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