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Ch 15 Video Concept and Terminology

This video segment explores the terminology and concepts related to different video standards worldwide, including PAL and NTSC. It covers frame rates, interlacing vs. progressive scanning, video resolutions (HDTV vs. SDTV), and aspect ratios (16:9 vs. 4:3). Viewers will learn about various bit rates for formats like VCD, DVD, and HDTV, as well as the use of MHEG-5 technology for interactive digital television services in Hong Kong. Delve into video compression and decompression methods for enhanced viewing experiences.

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Ch 15 Video Concept and Terminology

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  1. Ch 15 Video Concept and Terminology

  2. Different video standard worldwide.

  3. 576 lines 25 fps PAL TV System

  4. lines fps 525 29.97 NTSC TV System

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

  6. Interlacing 1 2 3 4 5 6 7 8 Line Scan order : 1 3 5 7 ….. 2 4 6 8 ….

  7. Progressive 1 2 3 4 5 6 7 8 Line Scan order : 1 2 3 4 5 6 7 8 ….

  8. Different Video Resolution

  9. HDTV vs SDTV SDTV HDTV

  10. Screen with different aspect ratio

  11. 16 9 Aspect Ratio 16:9

  12. Aspect Ratio 4:3 4 3

  13. Bit rate: VCD 1Mbit/s

  14. Bit rate: DVD 5Mbit/s

  15. Bit rate: HDTV 20Mbit/s

  16. Digital Television in Hong Kong

  17. Digital Television in Hong Kong MHEG-5 technology for providing interactive features.

  18. CODECCOmpession / DECompression http://www.fourcc.org/codecs.php

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