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Michael T. Stevens |
(503) 642-3430
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Career |
To seek and implement creative solutions for difficult engineering challenges in the areas of color correction and image processing. To create superior products through superior engineering techniques. |
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Work |
Software Engineer IV September 1997 - Present Xerox / Tektronix Wilsonville, Oregon Projects: Color halftoning for both laser and solid ink products, ICC profile generation for all office products, imaging architecture design and implementation, CRD design, frame buffer compression, fast rendering architectures, technical lead for group responsible for image quality of medical imaging product line, halftone algorithm for solid ink medical devices, visual compensation between film and paper, creation of new color tools, scanner evaluation, digital copier image pipeline, development of new out of gamut mappings, and improvements to printer imaging pipeline. |
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Member Of Technical Staff III September 1994 - September 1997 QMS, Inc. Lake Oswego, Oregon Projects: Conception and development of color profiling tools, changing Postscript printer code to accept proprietary technology for dithering and color rendering, development of a fast color matching pipeline for scanners, evaluation and generation of new stochastic screens, implementation of frame buffer encoding scheme into Postscript printer code, and extensive work in both lossy and lossless data compression. |
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Physicist April 1993 - September 1994 Calcomp Anaheim, California Projects: Quantifying image quality, creation of tools for halftone linearization, developing a new ordered dither through the use of super cells, stochastic screen generation algorithms, development of color profile generation tools, and creation of artifact reduction algorithms for dye sublimation, thermal transfer, and laser printing technologies. |
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Software Engineer June 1991 - April 1993 DP-Tek Santa Ana, California Projects: Computer modeling of the laser and semiconductor material interaction within laser printers, development of data compression algorithms, calibration of resolution enhancement technologies on laser printers, implementations of edge enhancement and detection technologies, creation of new halftoning algorithms, new implementation of laser gray scale technology, image processing, software development from the application level down to the driver level, IC debugging on high speed circuit boards, and test vector generation for ASIC simulation. |
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Inventions and White |
5 patents pending 6 trade secrets 26 white papers written between 1997 and 2004, including: Out Of Gamut Mapping, July 1999; Improved out of gamut mapping algorithm. Halftone Encryption, September 1998; An efficient algorithm for compressing bitmaps. General Tetrahedral Interpolation, August 1998; Fast n-dimensional to m-dimensional color transform. Color Gamut Morphing, March 1998; The mathematics of "bending" color gamuts. |
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Publications |
Defensive publication of Packed LZW Compression in June 2004 Co-authored a paper titled, Derivation Of 3 Dimensional Gamut Descriptors For Graphics Art Output Devices, presented at TAGA May 1994 |
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Education |
B.S. in Physics, Oregon State University, Corvallis Oregon, June 1990 B.S. in Engineering Physics, Oregon State University, Corvallis Oregon, June 1990 |
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Skills |
Strong mathematics background in calculus, topology, non-linear differential equations, linear algebra, and discrete mathematics. |
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Affiliations |
Member of Sigma Pi Sigma (National Physics Honor Society) |
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References |
Available upon request. |
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