8K Extremely High Resolution Camera System

8K EXTREMELY HIGH
RESOLUTION
CAMERA
BY,
PREJITH PAVANAN,
S7 ECE Presented By:
Prejith Pavanan
S7 ECE
Seminar 1
Guide:
Ramya S Kumar
Asst Prof
Dept Of ECE

INTRODUCTION
 Digital camera:
utilizes high speed optical networks.
transfers super high definition (SHD) images.
 Current transfer services offer high definition (HD) quality
video.
 An extra high quality 8k format enables a realistic telepresence.
 Combined with special tools such as video editing systems.
 Realizes effective remote collaboration for business work
spaces.
2

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.
3

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.
4

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.
5

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.
6

PIXEL SPATIAL SAMPLING
PATTERN AND NYQUIST DOMAIN
IN 4SENSOR IMAGING SYSTEM
G2 sensor is shifted to
the G1 sensor .
Positions of the R & B
sensors are shifted
horizontally and vertically
to the G1 sensor.
7

FOUR SENSOR METHOD
ADVANTAGES DISADVANTAGES
 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.
8

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.
10

 HDTV frequency: base frequency required for
transmitting the SHV signal.
 SHV signal :divided into 24HD video signals per
color.
 A total of 72HD video signals.
 Transmitted via the signal transmission interface and
cable.
 CCU:
 receives the SHV signal.
 converts them back from 72HD signal.
 Signal processor performs typical camera signal
processing. 13

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.
15

PIXEL DENSITIES
 1920 * 1080 pixels referred to as 2k.
16

TRIAL OF NETWORK
DISTRIBUTION OF 8K DIGITAL
CINEMA
 Manages cinema style license information.
 Delivers digital cinema contents in a timely manner.
 Handles the bulk content data of DCP (200300GB per
content ) reliably.
17

8k (16 x HD
Ultra HD 2)
Progressive
Higher Frame
1919
The Staircase To Quality
Heaven
Transition
Immersive Quality
analogue to digital
DIGITAL
Standard TV
625 –lines
Transition
4k
(Ultra HD1) 8k Ultra
Transition
to 1080p/50
(full HD) 4k
SDTV to HDTV HD
Legacy HDTV
1080i/25 &
720p50
Stereo 3DTV
two ½ HD
images
Master
Format
1080p/50
Progressive
3DTV
Two normal
HDTV
images
?
Progressive
Higher Frame
rate?
More
colours?
3DTV
Two normal
HDTV
images
HDTV
rate?
More
colours?
Higher
Contrast?
3DTV
Multiview
?
1990s 2004 2011 ….2013…. …2018

CONCLUSION
 Development of the SHD imaging system:
replacement of film cinema with digital camera.
 Digital cinema:
will utilize movie content delivery via optical
networks soon.
 needs only bulk file transfer.
 ODS: utilizes the networks for real time data transfer.
 One way streaming.
 A need to reduce the transmission latency while
preserving 8k/2k flexibility and stability. 20

REFFERENCE
 S. A. Stough and W. A. Hill, ‘‘High-performance electro-optic camera
prototype,’’ Soc. Motion Picture Television Eng. J., vol. 110, pp. 140–146, Mar.
2001.
 N. Narita, M. Kanazawa, and F. Okano, ‘‘Optimum screen parameters for
ultrahigh definition and wide-screen image systems: Study of screen aspect
ratios and maximum pixels with still images,’’ J. Inst. Television Eng. Jpn., vol.
56, no. 3, pp. 437–446, 2002.
 M. Kanazawa, K. Mitani, K. Hamasaki, M. Sugawara, F. Okano, K. Doi, and
M. Seino, ‘‘Ultrahigh-definition video system with 4000 scanning lines,’’ in
Proc. Int. Broadcast. Conv. Conf., 2003, pp. 321–329.
 M. Sugawara, K. Mitani, T. Saitoh, and Y. Fujita, ‘‘Four-chip CCD camera for
HDTV,’’ Proc. SPIEVInt. Soc. Opt. Eng., vol. 2173, pp. 122–129, 1994.
 K. Mitani, M. Sugawara, H. Shimamoto, T. Yamashita, and F. Okano,
‘‘Ultrahigh-definition color video camera system with 8 K 4 K,’’ J. Electr.
Imaging, vol. 17, no. 2, Apr.–Jun. 2008, 023014.
 M. Kanazawa, K. Hamada, and F. Okano, ‘‘Color error from RGB-stripe pixel
structure,’’ J. Soc. Inf. Display, vol. 11, no. 2, pp. 387–393, 2003. 21

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