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Digital Information ECEn 191 New Student Seminar. MOTIVATION. MOTIVATION. DIGITIZING INFORMATION. Sampling. Quantization. SAMPLING FOR CDs. A 36 second song at CD bitrates should be 3.175 MB…. NOISE REDUCTION. IMAGE RECONSTRUCTION. Observation System. Real Image. Degradation Effects
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DIGITIZING INFORMATION Sampling Quantization
SAMPLING FOR CDs A 36 second song at CD bitrates should be 3.175 MB…
IMAGE RECONSTRUCTION Observation System Real Image Degradation Effects (Blurring, Defocusing) Noise Detected Image
HIGH RESOLUTION IMAGE Sonar Image: http://www.physics.brown.edu/physics/userpages/students/Kio_Kim/DIDSON/movies/index.html
COMPUTER VISION http://video.google.com/videoplay?docid=-7836275846065185820&q=darpa+grand+challenge&total=151&start=50&num=10&so=0&type=search&plindex=6 http://video.google.com/videoplay?docid=-1767080978943210729&q=grand+challenge+crash&total=37&start=0&num=10&so=0&type=search&plindex=0
COMPRESSION COMPARISONS Compressed: 480 KB Original: 6,130 KB
SOUND COMPRESSION Full Version (12.1 MB) MP3 (1.09 MB)
FUTURE OF DIGITAL INFORMATION • Cheaper, better medical imaging • Cars that drive themselves • Movies on demand, real video conferencing, 3D remote rendering
WHAT’S NEXT Real-time UAV Radar Imaging
DIGITAL PROCESSING CLASSES • ECEn 370 – Probability Theory • ECEn 380 – Signals and Systems • ECEn 487 – Intro to DSP • ECEn 490 – Senior Project (Computer Vision)
LAB EXERCISE www.et.byu.edu/groups/newstudent/schedule.html