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.
5. What is 8k?
8k denotes a very specific display resolution of
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.
7. 8K IMAGING SYSTEM
Developed for use in next generation TV
Two methods of 8k camera systems :
a) Four Sensor Imaging Method .
b) Three 33-MPIXEL image sensors.
8. FOUR SENSOR IMAGING
Meets the practical demands for the prototype camera
To obtain high resolution and high quality pictures
two image sensors for sensing green light.
one sensor for red light.
one for blue light.
9. STRUCTURE OF COLOR
Incident light split into four:
one blue (GGRB).
Send to respective image sensors.
A half mirrored beam splitter inserted.
Spatially offset the pixels of the two green sensors. 9
• 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
Reduces the cost of sensors
to a great extent.
Increases transfer capacity.
Widens the dynamic range.
Improves the blooming
Increases the power
Increases the size of the
camera by the use of more
than one sensor.
12. THREE 33-MPIXEL CMOS
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:
head boards for driving the sensors.
a signal transmission interface for transmitting
data to the CPU. 12
16. 8K FORMAT
A new resolution standard.
Designed for digital cinema and computer graphics.
a) Higher image definition quality.
b) More detailed picture.
c) Faster action.
17. PIXEL DENSITIES
1920 * 1080 pixels referred to as 2k.
4096 * 2160 pixels referred to as 4k.
7680 * 4320 pixels referred to as 8k.
The Staircase To Quality Heaven
1990s 2004 ….2013….2011 …2018
two ½ HD
analogue to digital
SDTV to HDTV HD
(full HD) 4k
8k (16 x HD
Ultra HD 2)
20. *Recording of surgeries and medical diagnostic processes
for educational purposes
-Transmissions during symposiums and conferences
-High quality materials for medicine students
8K APPLICATIONS: SECURITY AND MONITORING
issue: face recognition in a crowd at airports, train stations and during mass events (e.g.
Many details on single 8K frame – the powerful source for image processing
Useful for police, border services and others security units
8K APPLICATIONS: CAD/CAM PROJECTS
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
Tests of ergonomic and functionality as well as strength and safety of
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.