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optical character reader and scanner

Discussion in 'General Electronics Discussion' started by Ajithkumar, Jul 29, 2016.

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  1. Ajithkumar

    Ajithkumar

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    Jul 29, 2016
    OCR softwares or machines detects a word which is clear.but does it have a scanner within it to detect that word?
     
  2. Bluepoint SEO

    Bluepoint SEO

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    Jul 28, 2016
    Can you be more specific? Like if it was trying to detect the word "MAPS" the machine would simply take the scanners measurements and the software would do the rest.
     
  3. Sunnysky

    Sunnysky

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    Jul 15, 2016
    OCR works on raw raster scanned images or ones converted from compressed files, but samples per character (dpi) must be very high and high quality for low error rate.
     
  4. hevans1944

    hevans1944 Hop - AC8NS

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    Jun 21, 2012
    The OCR concept has been expanded to now include OFR (Optical Facial Recognition) where "key" points and their geometric relationships in facial images are analyzed and compared with previously stored data acquired from scanned images, usually from television cameras, but also retrieved from police mug shots, passport photos, social media sites, cellphone cameras, etc. You are being watched. Similar software and hardware is used to scan and digitize finger prints for computer correlation with various law enforcement databases. This is just the tip of the iceberg.

    I've had OCR software on my personal computer for over thirty years, and document scanners have used OCR almost from Day 1. Both scanner resolution and the software algorithms have seen much improvement in the past ten years or so to allow recognition of blurry, out-of-focus, smudged and dirty documents and captured images. Combined with translation software and the ability to recognize multiple fonts as well as cursive script, just about anything you can see can be transformed into data a computer can store, retrieve, and manipulate.

    The same thing applies to voice recognition software (VRS) which allows audible conversations to be digitized and analyzed. Early versions of VRS offered for personal computers had to be "trained" and would work only with the voice of the speaker who trained the software. Today the algorithms are so advanced, and the computers that use them are so fast, that just about anyone, anywhere, can speak and be recognized by computer, even personal computers. This is a huge benefit to automated telephone response systems, but even more useful to agencies like the NSA who must filter and classify innumerable intercepted communications to determine which ones are possible threats to homeland security and require further investigation.

    @Ajithkumar, if you choose to further explore the OCR path and how it is done today, you are in for an exciting adventure. It's not just about scanning a page from a book and turning that into a computer-readable file that a human or a machine can edit. It is so much more. Good luck on your journey.
     
  5. Ajithkumar

    Ajithkumar

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    Jul 29, 2016
    my query is that does the ocr machine come with a scanner or any other input device to get the image of that paper or document which needs to be read.or are there any such which scans the document and detects the word
     
  6. Alec_t

    Alec_t

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    Jul 7, 2015
    This machine seems to be a self-contained example So the answer is "yes"..
     
  7. hevans1944

    hevans1944 Hop - AC8NS

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    Jun 21, 2012
    You provide the scanner and install the software required for optical character recognition. See this Google results page to begin your search. And, yes, some OCR software can scan a page to see if a particular word is on that page.
     
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