68 research outputs found
\u3ci\u3eSky Harbor\u3c/i\u3e
No full textOne might slip into a cave without a torch and imagine a language of foot scuttle and wing whinny, imagine that one must make from these consonants and vowels a lyric, a metaphysics-such is the poetry of Miles Waggener-hermetic, intentional, and of great necessity. -SANDRA ALCOSSER, Author of A Fish to Feed All Hunger and Except by Nature \u27Sky Harbor\u27 is the name of Phoenix, Arizona\u27s international airport, through whose automatic sliding doors-at one point in this fabulous collection of the same name-a sparrow flies. The human-constructed and the unconstructed abut constantly in Miles Waggener\u27s second full-length collection, wherein collisions between desert landscape and air-conditioned condominium developments form a stimulating dynamic, and an indelible backdrop on which the poet\u27s major concerns-memory, the land\u27s impression on the psyche, logos, spiritual longing-unfold, to distinct and brilliant consequence. When all the clique-ish whisperings cease, we will come to poetry like Miles Waggener\u27s Sky Harbor to regain a sense of what the genre can truly do. Rigorous and rewarding, brimful of craft and passion, this book emanates from a place-in the physical landscape and in the landscape of the mind-that is both longed for and exquisitely evoked. These poems shine the reader \u27through the lock\u27s narrow way.\u27 -CHRIS DOMBROWSKI, Author of By Cold Water Enter an earth dark with portents, some of which we have created ourselves: bird dead from a boy\u27s rock, fetus unable to come to term. In this uncannily orchestrated book of poems, the earth, our familiar, is given back to us strange, a landscape caught between the violence of the past and impending apocalypse, where we, as humans, exist between danger and domain. Miles Waggener has written a narrative of last days in a language that staggers, turning corners, sometimes perilously, in a search for doors, gates, horizons which will open, \u27the last-ditch efforts in the inclement that you, that your children become.\u27 Read this book slowly; it is as breathtaking and suspenseful as our time here. -MELISSA KWASNY, Author of The Nine Senseshttps://digitalcommons.unomaha.edu/facultybooks/1059/thumbnail.jp
Real-time Image Generation for Compressive Light Field Displays
No full textWith the invention of integral imaging and parallax barriers in the beginning of the 20th century, glasses-free 3D displays have become feasible. Only today—more than a century later—glasses-free 3D displays are finally emerging in the consumer market. The technologies being employed in current-generation devices, however, are fundamentally the same as what was invented 100 years ago. With rapid advances in optical fabrication, digital processing power, and computational perception, a new generation of display technology is emerging: compressive displays exploring the co-design of optical elements and computational processing while taking particular characteristics of the human visual system into account. In this paper, we discuss real-time implementation strategies for emerging compressive light field displays. We consider displays composed of multiple stacked layers of light-attenuating or polarization-rotating layers, such as LCDs. The involved image generation requires iterative tomographic image synthesis. We demonstrate that, for the case of light field display, computed tomographic light field synthesis maps well to operations included in the standard graphics pipeline, facilitating efficient GPU-based implementations with real-time framerates.United States. Defense Advanced Research Projects Agency. Soldier Centric Imaging via Computational CamerasNational Science Foundation (U.S.) (Grant IIS-1116452)United States. Defense Advanced Research Projects Agency. Maximally scalable Optical Sensor Array Imaging with Computation ProgramAlfred P. Sloan Foundation (Research Fellowship)United States. Defense Advanced Research Projects Agency (Young Faculty Award
Construction and Calibration of Optically Efficient LCD-based Multi-Layer Light Field Displays
No full textNear-term commercial multi-view displays currently employ ray-based 3D or 4D light field techniques. Conventional approaches to ray-based display typically include lens arrays or heuristic barrier patterns combined with integral interlaced views on a display screen such as an LCD panel. Recent work has placed an emphasis on the co-design of optics and image formation algorithms to achieve increased frame rates, brighter images, and wider fields-of-view using optimization-in-the-loop and novel arrangements of commodity LCD panels. In this paper we examine the construction and calibration methods of computational, multi-layer LCD light field displays. We present several experimental configurations that are simple to build and can be tuned to sufficient precision to achieve a research quality light field display. We also present an analysis of moiré interference in these displays, and guidelines for diffuser placement and display alignment to reduce the effects of moiré. We describe a technique using the moiré magnifier to fine-tune the alignment of the LCD layers
Medical Students with a Cadaver
No full textA group photograph of medical students standing around a cadaver on the table. Wm R. Waggener, 2nd Left Cigar, Wm Monroe Jones, 5th left cente
Content-adaptive parallax barriers: optimizing dual-layer 3D displays using low-rank light field factorization
No full textWe optimize automultiscopic displays built by stacking a pair of modified LCD panels. To date, such dual-stacked LCDs have used heuristic parallax barriers for view-dependent imagery: the front LCD shows a fixed array of slits or pinholes, independent of the multi-view content. While prior works adapt the spacing between slits or pinholes, depending on viewer position, we show both layers can also be adapted to the multi-view content, increasing brightness and refresh rate. Unlike conventional barriers, both masks are allowed to exhibit non-binary opacities. It is shown that any 4D light field emitted by a dual-stacked LCD is the tensor product of two 2D masks. Thus, any pair of 1D masks only achieves a rank-1 approximation of a 2D light field. Temporal multiplexing of masks is shown to achieve higher-rank approximations. Non-negative matrix factorization (NMF) minimizes the weighted Euclidean distance between a target light field and that emitted by the display. Simulations and experiments characterize the resulting content-adaptive parallax barriers for low-rank light field approximation.National Science Foundation (U.S.) (grant CCF-0729126)National Research Foundation of Korea (grant 2009-352-D00232
An elecromyographical analysis of two selected exercises untilizing two different resistance genres : an honors thesis (HONRS 499)
No full textThe study was performed to determine how valid a chest press exercise is using exercise tubing vs. a weight stack machine. This was determined by examining the maximum value of the action potential at different intervals and frequency of muscle firing (Root Mean Square). The purpose of the study is to compare the firing patterns of action potentiation between the two chest press exercises. Electromyographical analysis was used to determine a maximum value and RMS of the upright chest press utilizing a weight stack and exercise tubing.Thesis (B.?)Honors Colleg
Focus 3D: Compressive Accommodation Display
No full textWe present a glasses-free 3D display design with the potential to provide viewers with nearly correct accommodative depth cues, as well as motion parallax and binocular cues. Building on multilayer attenuator and directional backlight architectures, the proposed design achieves the high angular resolution needed for accommodation by placing spatial light modulators about a large lens: one conjugate to the viewer's eye, and one or more near the plane of the lens. Nonnegative tensor factorization is used to compress a high angular resolution light field into a set of masks that can be displayed on a pair of commodity LCD panels. By constraining the tensor factorization to preserve only those light rays seen by the viewer, we effectively steer narrow high-resolution viewing cones into the user's eyes, allowing binocular disparity, motion parallax, and the potential for nearly correct accommodation over a wide field of view. We verify the design experimentally by focusing a camera at different depths about a prototype display, establish formal upper bounds on the design's accommodation range and diffraction-limited performance, and discuss practical limitations that must be overcome to allow the device to be used with human observers
The field party in Germania Basin, 1933. L to R: Marlan Nelson, Andy Hank, Lawrence Waggener, Roscoe Files, Mike Wright, Bill Rozynik, Gay Weidenhoft, E.L. Bandtrief, Paul Hank, Slim Daries, Monty Atwater, Nelson Stone, Ed LaChapelle, Bob Haag, Wendell Frisby, Lloyd Johnson,John Clement.
No full textThe field party in Germania Basin, left to right: Marlan Nelson, Andy Hank, Lawrence Waggener, Roscoe Files, Mike Wright, Bill Rozynik, Gay Weidenhoft, E.L. Bandtrief, Paul Hank, Slim Daries, Monty Atwater, Nelson Stone, Ed LaChapelle, Bob Haag, Wendell Frisby, Lloyd Johnson, and John Clement, 1933, Alta, Uta
Boxing Champions
No full textChristian Brothers College took the Prep League boxing championship in 1931.
First row (L-R): E. Neville, G. Liles, M. Johnson, Captain Henry Cummings, R. Turley, M. Dwyer, A. Brown.
Second row (L-R): Charley Coburn (Manager), J. Kane, B. Bland, J. Casaretta, N. Koleas, J. Sheridan , R. Gilmore, H. Marshall, Milo Solomito (Coach).
Third row (L-R): F. Fazi, J. McWillie, A. Waggener, J. Harley, J. Foster, J. Laurenzi, P. Catanzaro
BiDi screen: a thin, depth-sensing LCD for 3D interaction using light fields
No full textWe transform an LCD into a display that supports both 2D multi-touch and unencumbered 3D gestures. Our BiDirectional (BiDi) screen, capable of both image capture and display, is inspired by emerging LCDs that use embedded optical sensors to detect multiple points of contact. Our key contribution is to exploit the spatial light modulation capability of LCDs to allow lensless imaging without interfering with display functionality. We switch between a display mode showing traditional graphics and a capture mode in which the backlight is disabled and the LCD displays a pinhole array or an equivalent tiled-broadband code. A large-format image sensor is placed slightly behind the liquid crystal layer. Together, the image sensor and LCD form a mask-based light field camera, capturing an array of images equivalent to that produced by a camera array spanning the display surface. The recovered multi-view orthographic imagery is used to passively estimate the depth of scene points. Two motivating applications are described: a hybrid touch plus gesture interaction and a light-gun mode for interacting with external light-emitting widgets. We show a working prototype that simulates the image sensor with a camera and diffuser, allowing interaction up to 50 cm in front of a modified 20.1 inch LCD.National Science Foundation (U.S.) (Grant CCF-0729126)Alfred P. Sloan Foundatio
- …
