Ch 15 Video Concept and Terminology. Different video standard worldwide.

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Presentation transcript:

Ch 15 Video Concept and Terminology

Different video standard worldwide.

576 lines 25 fps PAL TV System

lines fps NTSC TV System

Frame Rate With higher frame rate, the number of frames created is more, making pictures smoother. Higher Frame RateLower Frame Rate

Interlacing Line Scan order : … ….

Progressive Line Scan order : ….

Different Video Resolution

HDTV vs SDTV HDTV SDTV

Screen with different aspect ratio

Aspect Ratio 16:9 16 9

Aspect Ratio 4:3 4 3

Bit rate: VCD 1Mbit/s

Bit rate: DVD 5Mbit/s

Bit rate: HDTV 20Mbit/s

Digital Television in Hong Kong

MHEG-5 technology for providing interactive features.

CODEC COmpession / DECompression

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