PCC Principles of Digital Multimedia Technology
Test 2 (post-midterm) Exam with Answers
Save
Terms in this set (44)
Characteristics of the -The lens directly into the camera (photons)
transduction process -The light is divided into RGB
What do most Most professional video cameras have beam splitter
professional video and 3 sensors (prism)
cameras used to split the
color into RGB?
1. Most professional video cameras use
a beamsplitter and 3 sensors (prism)
-One photo site/sensor for each color
Two types of transduction
-Simpler process
processes
2. A single sensor covered in RGB filters
-The camera needs a demosaicing process to find out
the original camera
·Light is focused onto an imaging device
- Has rows of photosites
What happens to light
-since how much light is falling on it by how much
after the transduction
energy is lost
process?
-photons can't hold an electrical charge and loses a
portion of the charge
, 1. CCD
-Charge couple device
-First kind of sensors used for videography or
photography
-measures the amount of lights on the photo sites and
converts to electrical signals
-needs additional computer chips or circuits
-only capable of converting late to an electrical
signal
-additional circuits allow the electrical signal to be
turned into a video
-good and low lighting situations/good sensitivity in
low lighting
What are the two types of
2. CMOS
image sensors?
-complementary metal oxide semiconductor
-oxidizes as part of the process
-measures light on photo sites and converts to
electrical signals
-same purpose as CCD
-ability to convert the signal and turn it to video in
one chip unlike the CCD
-more energy efficient/less battery power
-less costly to produce
-most cameras use CMOS chips -susceptible to
rolling shutter (only occurs in video, with rapid
movement in a shot the rolling shutter will appear, will
smear the video)
True or false? No matter False; no matter which sensor is being used, the larger
which sensor is being sensor the better
used, the smaller the
sensor the better
What type of imaging DSLR camera's tend to have larger chips
device is tend to have
larger chips?
Test 2 (post-midterm) Exam with Answers
Save
Terms in this set (44)
Characteristics of the -The lens directly into the camera (photons)
transduction process -The light is divided into RGB
What do most Most professional video cameras have beam splitter
professional video and 3 sensors (prism)
cameras used to split the
color into RGB?
1. Most professional video cameras use
a beamsplitter and 3 sensors (prism)
-One photo site/sensor for each color
Two types of transduction
-Simpler process
processes
2. A single sensor covered in RGB filters
-The camera needs a demosaicing process to find out
the original camera
·Light is focused onto an imaging device
- Has rows of photosites
What happens to light
-since how much light is falling on it by how much
after the transduction
energy is lost
process?
-photons can't hold an electrical charge and loses a
portion of the charge
, 1. CCD
-Charge couple device
-First kind of sensors used for videography or
photography
-measures the amount of lights on the photo sites and
converts to electrical signals
-needs additional computer chips or circuits
-only capable of converting late to an electrical
signal
-additional circuits allow the electrical signal to be
turned into a video
-good and low lighting situations/good sensitivity in
low lighting
What are the two types of
2. CMOS
image sensors?
-complementary metal oxide semiconductor
-oxidizes as part of the process
-measures light on photo sites and converts to
electrical signals
-same purpose as CCD
-ability to convert the signal and turn it to video in
one chip unlike the CCD
-more energy efficient/less battery power
-less costly to produce
-most cameras use CMOS chips -susceptible to
rolling shutter (only occurs in video, with rapid
movement in a shot the rolling shutter will appear, will
smear the video)
True or false? No matter False; no matter which sensor is being used, the larger
which sensor is being sensor the better
used, the smaller the
sensor the better
What type of imaging DSLR camera's tend to have larger chips
device is tend to have
larger chips?
