Computer Science 1033A/B Lecture Notes - Lecture 9: Ycbcr, Chroma Subsampling, Camcorder

• School: Western University
• Department: Computer Science
• Course: Computer Science 1033A/B
• Professor: Vivi Tryphonopolous

Document Summary

Digital: each frame is a bitmapped graphic , stored as 0s and 1s. They create a story board, defining the shots and images they want to film. Every little detail is depicted in the story board. Four stages of creaking a digital video: produce video footage, transfer video footage to computer, edit video footage, store and play video. Must convert it to digital before we can put it on our computer to edit. To convert analog video to digital video we need a. For still images rgb color model is commonly used. For video the model is yuv (yiq) or ycbcr (model =color space: y luminanace (brightness, uv or (cbcr) chrominance (colour/hue) Answer: human eye is more sensitive to variations in brightness (our eyes have more rods which detect brightness. Cones detect colour but we have fewer of them. Color sampling: refers to compression technique for video. 4:1:1 4:2:0 4:4:4: x; brightness, y,z; colour.