We studied scotopic motion mechanisms, using a two-frame sinusoidal grating separated by various ISIs equated for mean luminance level. Perceived direction of displacement varied with both ISI and luminance. As luminance decreased, apparent motion reversal disappeared. This is predicted by a first-order motion model if the underlying temporal impulse response function varies from biphasic under...

With all the variety of perspectives on the nature of perception, there exist two basic theoretical lines in investigation of this (as well as other) psychological issues. One, known as the phenom-enalistic line, departs from subjective experiences as initially given, ignoring the subject's material activity with respect to the object, the activity in the process of which these experiences emer...

Inspired by the properties of the humam visual system, a new active vision system called ESCHeR (Etl Stereo Compact Head For Robot Vision) has been recently implemented with foveated wide-angle lenses. The lenses exhibit a wide eld of view along with a space-varying resolution for facilitating both detection and close observation. However, to handle such optical properties and achieve basic eye...

Citation: Jakubowski K, Eerola T, Alborno P, Volpe G, Camurri A and Clayton M (2017) Extracting Coarse Body Movements from Video in Music Performance: A Comparison of Automated Computer Vision Techniques with Motion Capture Data. Front. Digit. Humanit. 4:9. doi: 10.3389/fdigh.2017.00009 extracting coarse Body Movements from Video in Music Performance: a comparison of automated computer Vision T...

Psychophysical studies on three-dimensional (3-D) motion perception have shown that perceived trajectory angles of a small target traveling in depth are systematically biased. Here, predictions from Bayesian models, which extend existing models of motion-first and stereo-first processing, are investigated. These statistical models are based on stochastic representations of monocular velocity an...

Mounting neurophysiological evidence indicates that the visual analysis of human movement differs from the visual analysis of other categories of complex movement. If different patterns of neural activity underlie visual percepts of human and nonhuman movement, then psychophysical measures should elucidate different patterns of visual sensitivity to human movement and similarly complex, but non...

Even though motion tracking is a widely used technique to analyze and measure human movements, only a few studies focus on motion tracking of infants. In recent years, a number of studies have emerged focusing on analyzing the motion pattern of infants, using computer vision. Most of these studies are based on 2D images, but few are based on 3D information. In this paper, we present a model-bas...