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2. Optical character recognition - Wikipedia

   en.wikipedia.org/wiki/Optical_character_recognition

   Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...

3. Optical mark recognition - Wikipedia

   en.wikipedia.org/wiki/Optical_mark_recognition

   Optical mark recognition (OMR) is the scanning of paper to detect the presence or absence of a mark in a predetermined position. [5] Optical mark recognition has evolved from several other technologies. In the early 19th century and 20th century patents were given for machines that would aid the blind.

4. Barcode reader - Wikipedia

   en.wikipedia.org/wiki/Barcode_reader

   Barcode reader. A stationary barcode scanner for a conveyor line. A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.

5. Dot Pad tactile display makes images touchable for visually ...

   techcrunch.com/2022/03/10/dot-pad-tactile-display...

   Dot has taken a huge step forward with a smart braille device that not only allows for easy display of text, but tactile representations of imagery, potentially opening an entirely new layer for ...

6. Researchers develop a computer that's fooled by optical illusions

   www.engadget.com/2018-10-05-fooling-ai-with...

   Say you're staring at the image of a small circle in the center of a larger circle: The larger one looks green, but the smaller one appears gray. Except your friend looks at the same image and ...

7. Researchers built a low-cost camera system that recreates ...

   www.engadget.com/optical-microphone-camera-laser...

   An algorithm compares speckle patterns captured by a rolling shutter and a global shutter. It uses the differences between the patterns to calculate the vibrations and recreate the audio.