Results 231 to 240 of about 811,547 (275)

Visualizing features and tracking their evolution

Computer, 1994
We describe basic algorithms to extract coherent amorphous regions (features or objects) from 2 and 3D scalar and vector fields and then track them in a series of consecutive time steps. We use a combination of techniques from computer vision, image processing, computer graphics, and computational geometry and apply them to data sets from computational
Ravi Samtaney, Deborah Silver, Norman Zabusky, Jim Cao   +3 more
openaire   +1 more source

Tracking-Tolerant Visual Cryptography

2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), 2019
We introduce a novel secure display system, which uses visual cryptography [4] with tolerance for tracking. Our system brings cryptographic privacy from text to virtual worlds [3]. Much like traditional encryption that uses a public key and a private key, our system uses two images that are both necessary for visual decryption of the data.
Ruofei Du, Eric Lee, Amitabh Varshney
openaire   +1 more source

Visual tracking of jellyfish in situ

Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205), 2002
Marine biologists desire an automated system for observing gelatinous zooplankton. This study represents the first attempt at real-time robotic tracking of a gelatinous animal in the open ocean. Challenges stem from uneven lighting, encounters with other marine life and frequent out-of-frame events. Analysis of a large video library of human-controlled
Jason H. Rife, Stephen M. Rock
openaire   +1 more source

Visual Tracking and the Primate Flocculus

Science, 1975
Purkinje cells in the primate flocculus discharge specifically in relation to visual tracking, effectively generating a velocity profile of the target during pursuit. It is suggested that these neurons supply oculomotor centers with the velocity command signals needed to support pursuit eye movements.
F A, Miles, J H, Fuller
openaire   +2 more sources

An improvement in MSEPF for visual tracking

Artificial Life and Robotics, 2010
Recently, many approaches to applying a particle filter to a visual tracking problem have been proposed. However, it is hard to implement such a filter in a real-time system because it requires a great deal of computation time and considerable resources to achieve a high accuracy.
Yuki Nakagama, Masahiro Yokomichi
openaire   +1 more source

Eye Tracking for Visual Marketing

Foundations and Trends® in Marketing, 2008
We provide the theory of visual attention and eye-movements that serves as a basis for evaluating eye-tracking research and for discussing salient and emerging issues in visual marketing. Motivated from its rising importance in marketing practice and its potential for theoretical contribution, we first review eye-tracking research for visual marketing.
Wedel, M., Pieters, R.
openaire   +2 more sources

Visual tracking of object silhouettes

2009 16th IEEE International Conference on Image Processing (ICIP), 2009
In this paper we propose a new method that addresses the problem of tracking the bitmap (silhouette) of an object in a video under very general conditions. We assume a general target, possibly non rigid, with no prior information except initialization.
Guy Boudoukh, Ido Leichter, Ehud Rivlin
openaire   +1 more source

Patch-Based Tracking and Detecting for Visual Tracking

2013
As one of the most traditional tracking methods, particle filter has been improved in many previous tracking methods due to its non-Gaussian and non-linear distribution. Meanwhile, pure tracking methods cannot achieve good performance in complex tracking scenarios where there enormous deformation and occlusion occur.
Qianwen Li, Yue Zhou 0005
openaire   +1 more source

Effects of nefopam on visual tracking

Clinical Pharmacology & Therapeutics, 1979
The effects of 2 doses of nefopam, d‐amphetamine, pentazocine, and placebo were studied in healthy male sleep‐deprived volunteers to determine whether the drugs improved or impaired coordination and whether they induced subjective effects. A critical tracking task was used to study hand‐eye coordination.
J P, Belleville, F, Dorey, J W, BEllville   +2 more
openaire   +2 more sources

Channel Pruning for Visual Tracking

2019
Deep convolutional feature based Correlation Filter trackers have achieved record-breaking accuracy, but the huge computational complexity limits their application. In this paper, we derive the efficient convolution operators (ECO) tracker which obtains the top rank on VOT-2016.
Manqiang Che, Runling Wang, Yan Lu, Yan Li, Hui Zhi, Changzhen Xiong   +5 more
openaire   +1 more source