Is a mechanical or electronic translation of scanned images of handwritten, typewritten or printed text into machine-encoded text. It is widely used to convert books and documents into electronic files, to computerize a record-keeping systems in an office, or to publish the text on a website.
OCR makes it possible to edit the text, search for a word or phrase, store it more compactly, display or print a copy free of scanning artifacts, and apply techniques such as machine translation, text-to-speech and text mining to it.
The computer must capture an image of the license plate but the camera points at the highway and picks up many images that are not license plates-the scene, parts of cars ,trailers, litter, road-kill before it is road-kill.
OCRs business application include sorting mail and banking.
Is the ultimate form of representation is to create an entire digital world but has more to do with fooling the senses
Rapidly displaying still images is a standard way to fool our eyes and brain into seeing motion. Virtual reality applies that idea to our other senses and tries to eliminate the cues that keep us grounded in reality.
Haptic Devices
Haptic Devices are input/output technology for interacting with our sense of touch and feel.
The Challenge of Latency
The challenge with virtual reality and other sophisticated output devices like video is for the system to operate fast enough and precisely enough to appear natural.
The Challenge of Bandwidth
Bandwidth is a measure of how much information is transmitted per unit time. Bandwith is related to latency in that a given amount of information transtmitted with a given bandwith.