Results 111 to 120 of about 14,075 (296)

Transferable Deep Reinforcement Learning With Edge‐Contour‐Depth Fusion for Autonomous Wireless Capsule Endoscopy Navigation

open access: yesAdvanced Science, EarlyView.
This study presents an anatomical landmark‐guided DRL framework for autonomous wireless capsule endoscopy navigation. Using a lightweight edge‐contour‐depth fusion module, it achieves over 97% coverage across diverse gastric anatomies. To ensure reliability, a two‐stage sim‐to‐real pipeline with an adaptive dynamic programming controller mitigates ...
Haoxuan Wu   +16 more
wiley   +1 more source

Sensitivity and perceptual awareness increase with practice in metacontrast masking

open access: yesJournal of Vision, 2009
Can practice effects on unconscious stimuli lead to awareness? Can we "learn to see"? Recent evidence suggests that blindsight patients trained for an extensive period of time can learn to discriminate and consciously perceive stimuli that they were previously unaware of. So far, it is unknown whether these effects generalize to normal observers.
Schwiedrzik, Caspar M   +2 more
openaire   +3 more sources

Ambipolar Organic–Inorganic Heterostructure Transistor Array for Integrated Visual Information Processing

open access: yesAdvanced Science, EarlyView.
We present an organic–inorganic heterostructure transistor array for neuromorphic computing, achieving 95.6% MNIST accuracy and 1.2 fJ per operation, with dynamic spatiotemporal encoding and precise vehicle direction detection under combined optical and electrical stimulation.
Wen‐Min Zhong   +13 more
wiley   +1 more source

Temporal processes in prime–mask interaction: Assessing perceptual consequences of masked information

open access: yesAdvances in Cognitive Psychology, 2007
Visual backward masking is frequently used to study the temporal dynamics of visual perception. These dynamics may include the temporal features of conscious percepts, as suggested, for instance, by the asynchronous-updating model (Neumann, 1982) and perceptual-retouch theory ((Bachmann, 1994).
openaire   +2 more sources

Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits

open access: yesAdvanced Science, EarlyView.
Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu   +11 more
wiley   +1 more source

Object Substitution Masking in Schizophrenia: An Event-Related Potential Analysis

open access: yesFrontiers in Psychology, 2013
Schizophrenia patients exhibit deficits on visual processing tasks, including visual backward masking, and these impairments are related to deficits in higher-level processes.
Jonathan K Wynn   +7 more
doaj   +1 more source

Unconscious word stem completion priming in a mirror-masking paradigm

open access: yes, 2005
The aim of this study was to investigate unconscious priming by the use of a spatial mirror-masking paradigm. Words and nonwords with no under-length letters are mirrored at their horizontal axis.
Perrig, Walter J., Eckstein, Doris
core   +1 more source

Data Embedding In Speech Signals Using Perceptual Masking

open access: yes, 2004
Publication in the conference proceedings of EUSIPCO, Viena, Austria ...
Ariel Sagi, David Malah
openaire   +3 more sources

WS2 Optoelectronic Memristive Reservoir Enabling Ultra‐Low‐Power, Multi‐Task, and Environmentally Stable Neuromorphic Computing

open access: yesAdvanced Science, EarlyView.
WS2‐based in‐memory sensing reservoir computing integrates sensing, memory, and computation in one compact device. It achieves ∼94% N‐MNIST, ∼93% eye motion perception, and ∼89% speech recognition with ultra‐low energy (∼25.5 fJ/spike). The system shows stability at 95% humidity, endurance over 1.5M cycles, and supports synaptic plasticity, enabling ...
Dayanand Kumar   +9 more
wiley   +1 more source

Image Quality Assessment by Considering Multiscale and Multidirectional Visibility Differences in Shearlet Domain

open access: yesIEEE Access, 2019
Conventional objective image assessment metrics, such as mean squared error and peak signal-to-noise ratio, which only calculates pixel-based differences between the original and the degraded images, are not in agreement with the human vision.
Wu Dong, Hongxia Bie, Likun Lu, Yeli Li
doaj   +1 more source

Home - About - Disclaimer - Privacy