CCTV Camera Component and TechnologyImaging sensor

Optic - Lens

Camera Technology

IP vs analogue CCTV

Uniview IPC features

Fundamental of CCTV

1/2"

6.4mm

4.8

mm

1/3"

4.8mm

3.6

mm

1/4"

3.6mm

2.7

mm

CCD / CMOS image sensorCCD - Charge-Coupled Device

CMOS - Complementary metal oxide semiconductor

CCD / CMOS available in difference size

What is real time video ?

Optic / LensDetermine the coverage

Lens type – Auto Iris / Manual Iris / Fixed Iris

What do you need to see?ClassificationTarget can be distinguished between human and animal. (i.e. an upright human or animal walking on four legs)

DetectionA target is determined to be present in the camera’s field of view. (i.e. something in the field of view is present and/or

moving)

RecognitionHuman target is determined to be a threat by the type of clothing and/or equipment being carried. (i.e. friend or foe)

IdentificationHuman target can be identified as a specific individual. (i.e. a specific person)

Camera Technology

Day / Night Switching

Wide Dynamic Range

Light Sensitivity – Lux

Resolution – Megapixel / HD / 4 CIF

True B/W Mode with IR filter removed

Sensitivity increase in mono mode

DinionXF Day/Night Color Mode DinionXF Day/Night Mono Mode

Day/Night Switching

Wide Dynamic Range Technology

Enhance the image when the camera is capture the image with the uneven light and strong back light.

Illumination - LuxCamera output signal standard is 1 Vpp (full video)

IRE (Institute of Radio Engineers) value

The full signal is 140 IRE (1 Vpp)

The video part is 100 IRE

The synchronization part is 40 IRE

Examples of light intensity

Situation Illuminance (lux)

Summer afternoon, open air , no clouds 40,000 - 100,000

Summer afternoon, indoors 1,000 - 3,000

Office with very good lighting 800

Sunrise, sunset 500

Average street lighting 10 - 20

Twilight 5

Full moon, no clouds 0.25

Video Resolution

Video Streaming

Video Compression Technique

Advantage

Introduction to the IP Imaging Technology

What is IP CCTV / IPVS ?

Utilized the advantages of IP network, computer hardware and software.

Live and Recorded Video are fully encode into digital format !

IP Camera are addressable, can be access anywhere

UTP Cable

UTP Cable

Video Streaming

Video streaming using unicastUnicast – the sender will sent a video to the receiver that request the video, Max 5 receiver.

Video stream 1

Video stream 2

Video stream 3

Video streaming using multicastMulticast – the video will distribute by switcher to a set of receiver, Max 50 receivers with RCP+ Protocol.

Broadcast – the video will distribute by switcher to a set of receiver, Unlimited receivers .

Video CompressionImage over

compress

Joint Photographic Experts Group – JPEG

Motion-JPEG compression technique -Compress each video frame separately into JPEG image

-Priority is given to image resolution – cause longer image delay over low bandwidth.

-Every images have a consistent file size

Key Advantages

-Technology is simpler, can lower the price for the hardware.

MPEG Compression Technique

Advantages of IP Network Video

• Accessibility

• Simplified installation at lower costs

• Scalability / Flexible

• High Video quality

IP CCTV Analogue CCTV

Resolution 4K 8MP or higher 2 MP

Accessibility Anyway via IP address

Unlimited Distance

Require DVR or video server

Video Sharing Unlimited user Limited user

Image format Fully Digital video from IP Cam

Analogue video

Cost Saving Single Cable – CAT5e

Coaxial, Rs485/RS232, Power

Cable

Future Expansion Yes - E-license Hardware limitation

IP vs. Analogue

High definition Video

VGA 640x480HD 720 1280x720

1.3MP 1280x960

HD 1080 1920x1080

3MP 2048x1535

Resolution

HD vs. Megapixel

HD MPMaximum Resolution

2.1 MP 16 MP

Video Format 1280 x 7201920 x 1080

Many more formats

Aspect Ratio 16:9 4:3, 5:4 16:9

Frame Rate (high) 30/60 (lower) 3 – 15

Imager compliance

Complies to quality

standards

NoneImplies # of

pixels

HD is a type of MP camera. All HD Cameras are MP. Not all MP cameras are HD.

Question

1. How far the camera can see ?

2. How clear is your camera image ?

3. How long can the video record ?

4. What compression technique Uniview IPC use ?

5. What is the different between HD and Megapixel IPC ?

6. What is the advantage of the IP CCTV against Analogue CCTV?

7. What is the purpose for the Infra – red illuminator ?

8. What is the advantage of the Wide Dynamic Range ( WDR) ?

9. What type of lens will use for detection purposed ?

10. How Many frame per second for real time video ?

Thanks