Microgeometry capture using an elastomeric sensor

We describe a system for capturing microscopic surface geometry. The system extends the retrographic sensor [Johnson and Adelson 2009] to the microscopic domain, demonstrating spatial resolution as small as 2 microns. In contrast to existing microgeometry capture techniques, the system is not affected by the optical characteristics of the surface being measured---it captures the same geometry whether the object is matte, glossy, or transparent. In addition, the hardware design allows for a variety of form factors, including a hand-held device that can be used to capture high-resolution surface geometry in the field. We achieve these results with a combination of improved sensor materials, illumination design, and reconstruction algorithm, as compared to the original sensor of Johnson and Adelson [2009].National Science Foundation (U.S.) (Grant 0739255)National Institutes of Health (U.S.) (Contract 1-R01-EY019292-01

Real-time Image Generation for Compressive Light Field Displays

With 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

A SYSTEMATIC REVIEW OF ADVANCE CARE PLANNING INTERVENTION COMPONENTS AND OUTCOMES AMONG CLIENTS WITH CANCER

ACP is a process of behavior change with connections to the Transtheoretical Model of Behavior Change (TTM). This systematic review conducted a gap analysis of ACP interventions for clients with cancer by categorizing intervention components according to the TTM. PubMed, CINAHL Plus, MEDLINE, Cochrane Library, and Web of Science databases were searched for articles related to ACP and cancer. Intervention components were categorized using the TTM and outcomes evaluated.The search yielded 3,571 articles, with 20 meeting criteria. Most interventions were intended for the precontemplation and contemplation stages of change, with fewer intended for preparation, action, or maintenance. Multiple underutilized processes to engage ACP were identified. The majority of interventions were unsuccessful or neutral in engaging ACP. ACP interventions that are stage-matched, utilize diverse processes to engage ACP, address ACP as a process, and monitor engagement across the illness trajectory are needed