8K EXTREMELY HIGH

RESOLUTION

CAMERABY,

PREJITH PAVANAN,

S7 ECE Presented By:

Prejith Pavanan

S7 ECE

Seminar Guide:

Ramya S Kumar

Asst Prof

Dept Of ECE

1

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

G2 sensor is shifted to

the G1 sensor .

Positions of the R & B

sensors are shifted

horizontally and vertically

to the G1 sensor.

PIXEL SPATIAL SAMPLING

PATTERN AND NYQUIST DOMAIN

IN 4SENSOR IMAGING SYSTEM

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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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SPECIFICATIONS

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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

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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

SPECIFICATIONS

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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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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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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.

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18

1919

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)

Imm

ers

ive Q

ualit

y

?

?

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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