1. Presented By:
Vansh Kumar
CSE final year
1335051248

3. PIXEL
DEFINITION-In digital imaging,a pixel is a
smallest controllable elements of a picture (Building
block of a picture).
PIXEL DENSITY-Number of pixels in certain
space.Usually measured in PPI.
PPI(Pixel Per Inch)-Number of pixel per inch.
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4. RESOLUTION
• DEFINITION-Number of distinct pixels
in each dimention that can be displayed.
• AVAILABLE RESOLUTIONS-
*2K
*4K
*8K

5. What is 8k?
 8k denotes a very specific display resolution of
7680*4320 pixels.
 8k refers to any display resolution that has roughly
7000 horizontal pixels.
 An additional feature : 2k resolution data can easily
be extracted from 8k resolution data.
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6. HDTV-
TOTAL PIXELS=2,000,000 PIXELS
PPI=102 PIXEL PER INCH
IPHONE-
TOTAL PIXEL=700,000 PIXELS
PPI=326 PIXEL PER INCH

7. 8K IMAGING SYSTEM
 Developed for use in next generation TV
broadcasting systems.
 Two methods of 8k camera systems :
a) Four Sensor Imaging Method .
b) Three 33-MPIXEL image sensors.
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8. FOUR SENSOR IMAGING
METHOD
Meets the practical demands for the prototype camera
systems.
To obtain high resolution and high quality pictures
uses:
 two image sensors for sensing green light.
one sensor for red light.
one for blue light.
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9. STRUCTURE OF COLOR
SEPARATION PRISM
Incident light split into four:
two green.
one red.
one blue (GGRB).
Send to respective image sensors.
A half mirrored beam splitter inserted.
Spatially offset the pixels of the two green sensors. 9

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• Incident light is separated into four color and divided in to….
• Two green, one red, and one blue (GGRB).
• Three-sensor imaging system (RGB) used in commercial and broadcast video cameras.
• Prism for the four-sensor system can be made as small as the conventional RGB prism.
 Structure of the color separation prism
developed for the four- sensor imaging system.

11. FOUR SENSOR METHOD
 Relatively high sensitivity.
 Maintains a high dynamic
range.
 Reduces the cost of sensors
to a great extent.
 Increases transfer capacity.
 Widens the dynamic range.
 Improves the blooming
characteristics.
 Increases the power
consumption.
 Increases the size of the
camera by the use of more
than one sensor.
ADVANTAGES DISADVANTAGES
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12. THREE 33-MPIXEL CMOS
IMAGE SENSOR
Consumes relatively more power.
Has a high volume of signal processing devices.
Configuration is divided into the camera head and
CCU(camera control unit).
The camera head has:
image sensors.
head boards for driving the sensors.
a signal transmission interface for transmitting
data to the CPU. 12

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Practical 8k camera with four-sensor image system

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16. 8K FORMAT
 A new resolution standard.
 Designed for digital cinema and computer graphics.
 Advantages:
a) Higher image definition quality.
b) More detailed picture.
c) Faster action.
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17. PIXEL DENSITIES
1920 * 1080 pixels referred to as 2k.
4096 * 2160 pixels referred to as 4k.
7680 * 4320 pixels referred to as 8k.
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18. 1819
The Staircase To Quality Heaven
1990s 2004 ….2013….2011 …2018
DIGITAL
Standard TV
625 –lines
Legacy HDTV
1080i/25 &
720p50
Stereo 3DTV
two ½ HD
images
Transition
analogue to digital
Transition
SDTV to HDTV HD
Master
Format
1080p/50
Progressive
3DTV
Two normal
HDTV
images
Transition
to 1080p/50
(full HD) 4k
Progressive
Higher Frame
rate?
More colours?
3DTV
Two normal
HDTV
images
4k
(Ultra HD1)
8k Ultra
HDTV
Progressive
Higher Frame
rate?
More colours?
Higher
Contrast?
3DTV
Multiview
8k (16 x HD
Ultra HD 2)
ImmersiveQuality
?
?

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APPLICATIONS

20. *Recording of surgeries and medical diagnostic processes
for educational purposes
-Transmissions during symposiums and conferences
-High quality materials for medicine students
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8K APPLICATIONS: SECURITY AND MONITORING
issue: face recognition in a crowd at airports, train stations and during mass events (e.g.
stadiums)
Many details on single 8K frame – the powerful source for image processing
Useful for police, border services and others security units
Constraints:
scalability,
processing

22. .
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8K APPLICATIONS: CAD/CAM PROJECTS
Automotive design
Design and digital visualisation of 3D car models
Tests of safety, aerodynamics and ergonomic solutions
Architecture and urban planning
Design and visualisation of buildings and engineering constructions
models
Tests of ergonomic and functionality as well as strength and safety of
constructions

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8K LIVE TECHNOLOGY, VIDEO CONFERENCING AND BROADCASTING
4K/8K Public Screening

24. More over two of the four image sensors are
used for sensing green signals and one for
red and blue signals, this feature enables to
improve the luminance signal resolution and
to chromatic aberration to obtain extremely
high resolution images.
These technologies for very high resolution
imaging can be used for making various shv
content such as live sporting,digital cinemas
and medical application.

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