Biosonar auditory model for target shape perception and clutter rejection

2014 ◽  
Vol 135 (4) ◽  
pp. 2174-2174
Author(s):  
James A. Simmons ◽  
Michaela Warnecke ◽  
Jason E. Gaudette
Keyword(s):  
Shape Perception ◽  
Auditory Model ◽  
Target Shape ◽  
Clutter Rejection

Gabor Jets for Clutter Rejection in Infrared Imagery

2004 ◽  
Author(s):  
Mark Wellman ◽  
Nasser Nasrabadi
Keyword(s):  
Infrared Imagery ◽  
Clutter Rejection

Modifying Perceived Size of a Handled Object through Hand Image Deformation

2013 ◽  
Vol 22 (3) ◽  
pp. 255-270 ◽  
Author(s):  
Yuki Ban ◽  
Takuji Narumi ◽  
Tomohiro Tanikawa ◽  
Michitaka Hirose
Keyword(s):  
Visual Representation ◽  
Shape Perception ◽  
Size Perception ◽  
Visual Object ◽  
Display System ◽  
Haptic Interaction ◽  
Image Deformation ◽  
Virtual Objects ◽  
The Difference ◽  
Hand Image

In this study, we aim to construct a perception-based shape display system to provide users with the sensation of touching virtual objects of varying shapes using only a simple mechanism. Thus far, we have proved that identified curved surface shapes or edge angles can be modified by displacing the visual representation of the user's hand. However, using this method, we cannot emulate multifinger touch, because of spatial unconformity. To solve this problem, we focus on modifying the identification of shapes using two fingers by deforming the visual representation of the user's hand. We devised a video see-through system that enables us to change the perceived shape of an object that a user is touching visually. The visual representation of the user's hand is deformed as if the user were handling a visual object; however, the user is actually handling an object of a different shape. Using this system, we conducted two experiments to investigate the effects of visuo-haptic interaction and evaluate its effectiveness. One is an investigation on the modification of size perception to confirm that the fingers did not stroke the shape but only touched it statically. The other is an investigation on the modification of shape perception for confirming that the fingers dynamically stroked the surface of the shape. The results of these experiments show that the perceived sizes of objects handled using a thumb and other finger(s) could be modified if the difference between the size of physical and visual stimuli was in the −40% to 35% range. In addition, we found that the algorithm can create an effect of shape perception modification when users stroke the shape with multiple fingers.

Effects of Model Performances on Music Skill Acquisition and Overnight Memory Consolidation

2014 ◽  
Vol 62 (1) ◽  
pp. 89-99 ◽  
Author(s):  
Carla D. Cash ◽  
Sarah E. Allen ◽  
Amy L. Simmons ◽  
Robert A. Duke
Keyword(s):  
Skill Acquisition ◽  
Memory Consolidation ◽  
Procedural Memory ◽  
Auditory Model ◽  
Research Participants ◽  
Nondominant Hand ◽  
The Mean ◽  
Rest Intervals

This study was designed to investigate the extent to which the presentation of an auditory model prior to learning a novel melody affects performance during active practice and the overnight consolidation of procedural memory. During evening training sessions, 32 nonpianist musicians practiced a 13-note keyboard melody with their left (nondominant) hand in twelve 30-s practice intervals separated by 30-s rest intervals. Participants were instructed to play the sequence “as quickly, accurately, and evenly as possible.” Approximately half the participants, prior to the first practice interval, listened to 10 repetitions of the target melody played at 552 tones per minute (half note = 138). All participants were tested on the target melody the following morning, approximately 12 hr after training, in three 30-s blocks separated by 30-s rest intervals. Performance was measured in terms of the mean number of correct key presses per 30-s block (CKP/B). Consistent with previous research, participants made considerable improvements in CKP/B during the evening training sessions and between the end of training and the morning test sessions. Learners who listened to the model made significantly larger gains in performance during training and between the end of training and test than did those who did not hear the model.

scholarly journals A Wavelet Auditory Model and Data Compression

1993 ◽  
Vol 1 (1) ◽  
pp. 3-28 ◽  
Author(s):  
John J. Benedetto ◽  
Anthony Teolis
Keyword(s):  
Data Compression ◽  
Auditory Model

scholarly journals New clutter-rejection algorithm for Doppler ultrasound

2002 ◽  
Author(s):  
Guy Cloutier ◽  
Danmin Chen ◽  
Louis-Gilles Durand
Keyword(s):  
Doppler Ultrasound ◽  
Rejection Algorithm ◽  
Clutter Rejection
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