Super resolution techniques
Javier Mateos
Outline
• Other applications of super-resolution
– Demosaicing – Superresolution from multisensors
• Multi-Dimensional Signal Processing(MDSP) • Commercial software
– – – – QE Superresolution PhotoAcute Cognitech Video Investigator Other commercial software
Other approaches to superresolution
• Demosaicing Improves color imagesfrom a single CCD camera • Superresolution from multisensors Combine images from a set of shifted sensors
Demosaicing
Bayer pattern
Demosaicing
Demosaicing + Deblurring
OriginalBlurred
Bilinear interpolation + deconvolution
Proposed method
Super-resolution from multisensors
Super-resolution from multisensors
Original
Low resolution
Initialreconstruction
Final reconstruction
Multi-Dimensional Signal Processing (MDSP)
• Implements several super-resolution methods by Prof. Elad and Prof. Milanfar. • For academic (Prof. Milanfar) andcommercial use (MotionDSP, Inc.) • Allows super-resolution for gray scale and color (demosaicing) images.
Multi-Dimensional Signal Processing (MDSP)
Multi-Dimensional Signal Processing (MDSP)Bicubic interpolation
Shift & add + decovolution
BIlateral shift & add + decovolution Median shift & add + decovolution
Multi-Dimensional Signal Processing (MDSP)
Bicubic interpolationShift & add + decovolution
BIlateral shift & add + decovolution
Median shift & add + decovolution
Comercial software
• • • • QE Superresolution PhotoAcute Cognitech Video InvestigatorOther commercial software
– Salient Stills Video Focus – Let it wave Video Upconversion – Scientific Systems Company, Inc.
QE Superresolution http://www.qelabs.com/sr/index.asp
• • • • Onlyperforms super-resolution. No information of how it works. Only opens DV video sequences? Allows different output resolutions (x2, x4).
QE Superresolution
QE Superresolution
PhotoAcute...
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