Objective(s): The aim of this study was to determine the optimal reconstruction parameters for iterative reconstruction in different devices and collimators for dopamine transporter (DaT) single-photon emission computed tomography (SPECT). The results were compared between filtered back projection (FBP) and different attenuation correction (AC) methods.Methods: An anthropomorphic striatal phant...

This paper describes True-Color Night Vision cameras that are sensitive to the visible to near-infrared (V-NIR) portion of the spectrum allowing for the “true-color” of scenes and objects to be displayed and recorded under low-light-level conditions. As compared to traditional monochrome (gray or green) night vision imagery, color imagery has increased information content and has proven to enab...

Light-field cameras have now become available in both consumer and industrial applications, and recent papers have demonstrated practical algorithms for depth recovery from a passive single-shot capture. However, current lightfield depth estimation methods are designed for Lambertian objects and fail or degrade for glossy or specular surfaces. Because light-field cameras have an array of micro-...

Light field cameras record light intensity and angle of light incidence. This extra data presents a bevy of new possibilities for robotics; however, the usefulness of light field cameras may be hampered by motion blur when used on moving platforms. Traditional deconvolution de-blurring methods use a single point spread function and perform poorly in the presence of parallax. We derive a 3D poin...

Time-reversed ultrasonically encoded optical focusing measures the wavefront of ultrasonically tagged light, and then phase conjugates the tagged light back to the ultrasonic focus, thus focusing light deep inside the scattering media. In previous works, the speed of wavefront measurement was limited by the low frame rates of conventional cameras. In addition, these cameras used most of their b...

One of the most common ways of capturing wide field-of-view scenes is by recording panoramic videos. Using an array of cameras with limited overlapping in the corresponding images, one can generate good panorama images. Using the panorama, several immersive display options can be explored. There is a two fold synchronization problem associated to such a system. One is the temporal synchronizati...

Light field cameras can capture the 3D information in a scene with a single shot. This special feature makes light field cameras very appealing for a variety of applications: from the popular post-capture refocus, to depth estimation and imagebased rendering. However, light field cameras suffer by design from strong limitations in their spatial resolution, which should therefore be augmented by...