Rick Parent - CIS681 Background Perception Display Considerations Animation Production Video Technology Orientation Representation

Rick Parent - CIS681 Perception Persistence of Vision Refresh rate v. update rate Perception of Motion Flicker, flicker rate Positive Afterimage

Rick Parent - CIS681 Display Issues Double buffering Compositing Alpha channel Shadows, drop shadows Motion Blur

Rick Parent - CIS681 Analog Image Technology Raster scan video v. projected film frame Film cameras, plotters CRT: TVs, PCs, workstations

Rick Parent - CIS681 Film Format: dimensions, perforations, sound Frames per second Multiple exposures

Rick Parent - CIS681 Video - Raster Pattern

Rick Parent - CIS681 Interlaced Raster Pattern Frame v. field

Rick Parent - CIS681 Video NTSC: 29.97Hz, interlaced 4:3 aspect ratio ~480 scanlines ~640 (square) pixels 60Hz, progressive scan

Rick Parent - CIS681 Compression Techniques Run-length encoding LZW Discrete Cosine Transform, Wavelet YUV Fractal

Rick Parent - CIS681 Codecs Video I RLE Sorenson Cinepak GIF MPEG-1 MPEG-2 MJPEG

Rick Parent - CIS681 Digital Video Formats Animated GIF MJPEG MPEG

Rick Parent - CIS681 Movie Formats Quicktime Video for Windows

Rick Parent - CIS681 Non-linear Editing Computer-based Editing system VCR Web site CD DVD Disk Source 2 Source 1 Source n DV camera

Rick Parent - CIS681 Animation Production Production - sequence - shot -frame storyboard Pencil tests Test shots Key frames (extremes) and in-betweening

Rick Parent - CIS681 Animation Production Art Modeling Lighting Camera Shading Animating Layout Story

Rick Parent - CIS681 Technical Jobs R&D Production Support Technical Director (TD)

Rick Parent - CIS681 Animation Principles Arcs Squash and Stretch Appeal Follow Through / Overlapping Action Secondary Actions Exaggeration Anticipation Timing Pose-to-pose v. Straight Ahead Staging PhysicsPresentationAesthetics Slow in & Slow out

Rick Parent - CIS681 Orientation Representation Transformation Matrices Fixed Angle Euler Angles Axis-Angle Quaternions

Rick Parent - CIS681 Transformation Matrices a d g b c ef h i 000

Rick Parent - CIS681 Fixed Angles E.g., (X,Y,Z) X Z Y

Rick Parent - CIS681 Fixed Angle Interpolation (0,90,0) to (90,0,0)

Rick Parent - CIS681 Euler Angles X Y Z xy z (e.g., z,y,x)

Rick Parent - CIS681 Axis-Angle   (Ax,Ay,Az,  ) Euler’s rotation theorem X Y Z

Rick Parent - CIS681 Quaternions   (cos(  /2),sin(  /2)*A)