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PROGRAM-BCA
(REVISED FALL 2012)
SEMESTER-5
SUBJECT
CODE & NAME-BCA5042– Graphics and Multimedia Systems
CREDIT-4
BK
ID-B1552
MAX.
MARKS-60
Q1.
Briefly explain RGB color model. [10]
Answer.
RGB color model
The RGB color model is
an additive color model in which red, green, and blue light is added together in
various ways to reproduce a broad array of colors. The name RGB comes from the
initials of the three additive primary colors, red, green, and blue. The main
purpose of the RGB color model is for the sensing, representation, and display
of images in electronic systems
Q2.
Write a note on:
·
Direct view storage
tubes
·
Raster Scan Display
(Direct
view storage tubes, Raster Scan Display) [5+5]
Answer.
Direct view storage tubes
A direct-view storage
tube (DVST) stores the picture information as a charge distribution just behind
the phosphor-coated screen. It is an alternative method for maintaining a
screen image to store the picture information inside the CRT instead of
refreshing the
Q3.
Write a note on:
I.
Control points
II.
Knot Vector
(Control
points, Knot Vector) [10]
Answer.
i)
Control points
The control points
determine the shape of the curve. Typically, each point of the curve is
computed by taking a weighted sum of a number of control points. The weight of
each point varies according to the governing parameter. For a curve of degree
d, the weight of any control point is only nonzero in d+1 intervals of the
parameter space. Within those intervals, the weight changes according to a
polynomial function (basis functions) of degree d. At the boundaries of the
intervals, the basis
Q4.
Explain different types of coherence. [10]
Answer.
Types of coherence
Coherence is attained when there is a constant phase difference in two
or more waves over time.
Two waves are said to be in phase if
Q5.
What is multimedia? Explain briefly the uses of multimedia. [3+7]
Answer.
Multimedia
Multimedia refers to
content that uses a combination of different content forms. This contrasts with
media that use only rudimentary computer displays such as
Q6.
Explain the following
(a)
Full animation
(b)
Limited animation
(c)
Rotoscoping
(Full
animation, Limited animation, Rotoscoping) [4+3+3]
Answer.
a)
Full animation
Full animation refers to the process
of producing high-quality traditionally animated films, which regularly use
detailed drawings and possible movement. Fully animated films can be done in a
variety of styles, from more realistically animated works
Get fully solved assignment. Buy online from website
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