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Lesson 2 - Research Video Standards

Aug 20, 2015

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  1. 1. Digital VideoLesson 2
  2. 2. Lesson GoalsKnow various video broadcast methodsBe able to identify resolution, aspect ratio, file formatsUnderstand where various standards are used #broadcast #resolution #aspect ratio #format
  3. 3. How can videos bebroadcast?Think about the various uses last lesson
  4. 4. BroadcastKnow various broadcast methods Research the use of video standards Video can be broadcast using various methods including:#broadcast #resolution#aspect ratio #format
  5. 5. Resolution Know various broadcast methods Research the use of video standardsStandard Definition (SD)This is the number of pixels displayed480p720x480 on a screen given as width x height576p720x576High Definition (HDTV)720p1280x7201080p 1920x1080Ultra High Definition (UHDTV)4K3480x21608K7680x4320Digital Cinema (DCI)2K2048x10804K4096x2160#broadcast #resolution#aspect ratio #format
  6. 6. Aspect RatioKnow various broadcast methodsResearch the use of video standards This is the relationship between the width and height of a video: Standard WidescreenCinemascope41621 3 994:316:921:9Standard TV format Accepted widescreen video Very wide screen format that isfor second half of standard used for TV, DVD mainly used in cinemas20th century and HD Video #broadcast #resolution #aspect ratio #format
  7. 7. Video StandardsKnow various broadcast methods Research the use of video standards Phase Alternating LineNational TelevisionHigh Definition System Committee Europe & Africa Developed in 1940Predominant DigitalFormat 25 fpsNorth/South AmericaBetter sound quality 625 scan lines30 fpsAmericas ATSC Superior picture525scan lines qualityEurope DVB-T Smoother pictureStandard Definition (PAL and NTSC)High Definition (HD)#broadcast #resolution#aspect ratio #format
  8. 8. File FormatsKnow various broadcast methodsResearch the use of video standards There are many different video file formats used including: #broadcast #resolution #aspect ratio #format
  9. 9. Your TaskKnow various broadcast methods Research the use of video standards Briefly explain the following:Broadcast MethodsResolutionAspect Ratio List the main video standards and explain where each is used:PALNTSCHigh Definition List some file formats and say where they are most often used.#broadcast #resolution#aspect ratio #format
  10. 10. Key WordsKnow various broadcast methods Research the use of video standards Broadcast The way in which a video is sent out for peopleto be able to view it Resolution Number of pixels that make up thedisplay, given as a width x height Aspect Ratio Ratio of the width to the height on the displaybeing used
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