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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