Video conferencing

A video conferencing is a meeting between two or more geographically separated people who use a network or the Internet to transmit audio and video data. To participate in a video conference, you need video conferencing software along with a microphone, speakers, and video camera attached to a computer.
 
As you speak, members of the meeting hear your voice on their speakers. Any image in front of the video camera, such as a person’s face, appears in a window on each participant’s screen.
  The above picture shows Ministry of ICT officials in meeting the cabinet ministers. To participate in a video conference, you need video conferencing software along with a microphone, speakers, and video camera attached to a computer.
A whiteboard is another window on the screen that displays notes and drawings simultaneously on all participants’ screens. This window provides multiple users with an area on which they can write or draw.
Some data are best entered and processed visually. However, the simulation of human senses, especially vision, is extremely complex. A computer does not actually see and interpret an image the way a human being does. To create a visual database, a vision-input system, via a camera, digitizes the images of all objects to be identified, then stores the digitized form of each image in the database. When the system is placed in operation, the camera enters each newly "seen" image into a digitizer. 

The system then compares the digitized image to be interpreted with the pre-recorded digitized images in the computer’s database. The computer identifies the image by matching the structure of the input image with those images in the database. Vision-input technology is usually used in manufacturing and security.
 
This image illustrates a digital vision-inspection system on a assembly line, which identifies and reject those parts that do not meet certain quality control specifications.
The vision system performs rudimentary gauging inspections and then signals the computer to take appropriate action.

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