Positioning of unoccupied aerial systems (UAS, drones) is predominantly based on Global Navigation Satellite Systems (GNSS). Due to potential signal disruptions, redundant positioning are needed for reliable operation. The objective this study was implement and assess a system high flying altitude drone operation visual-inertial odometry (VIO). A new sensor suite with stereo cameras an inertial...

We present an algorithm for automatically constructing a decompositional shape model from examples. Unlike current approaches to structural model acquisition, in which one-to-one correspondences among appearance-based features are used to construct an exemplar-based model, we search for many-tomany correspondences among qualitative shape features (multi-scale ridges and blobs) to construct a ge...

It is often desirable or unavoidable to display Virtual Reality (VR) stereoscopic content at low brightness. For example, a dimmer reduces the flicker artefacts that are introduced by low-persistence VR headsets. also saves power, prolongs battery life, and cost of projection system. Additionally, stereo movies usually displayed relatively luminance due polarization filters other optical elemen...

U.S. Air Force medical vision standards currently establish a minimum level of depth perception and ocular alignment. These standards apply not only to pilots but also to aircrew with scanner duty, which applies to aircrew involved in clearing aircraft for landing. This has been especially important since an accident in 1998 involving two H-60 aircraft that collided, where poor depth perception...

Although we live in a 3D world, most of the data we record and display is still in 1D or 2D formats. As a result, data from the third dimension, which is often important in aiding human judgments, cannot be stored. In many cases, the depth information that is lost when data is stored in 1D or 2D formats is critical for measuring an object’s surface shape and profile, as well as perceiving its d...

The performance of depth reconstruction in binocular stereo relies on how adequate the predefined baseline for a target scene is. Widebaseline stereo is capable of discriminating depth better than the narrow one, but it often suffers from spatial artifacts. Narrow-baseline stereo can provide a more elaborate depth map with less artifacts, while its depth resolution tends to be biased or coarse ...

The perirhinal cortex (PER) is part of both the medial temporal lobe memory system (MTL) and the ventral visual stream (VVS). In the MTL, PER provides input to the hippocampal formation directly and via the entorhinal cortex (EC), whereas in the VVS, PER is considered to be at the top of the visual processing hierarchy of object information. Because of its position in both networks, PER presuma...