نتایج جستجو برای: spatial processing

تعداد نتایج: 828052  

2017
Mingjie Tang Yongyang Yu Walid G. Aref Ahmed R. Mahmood Qutaibah M. Malluhi Mourad Ouzzani

Due to the ubiquity of spatial data applications and the large amounts of spatial data that these applications generate and process, there is a pressing need for scalable spatial query processing. In this paper, we present new techniques for spatial query processing and optimization in an in-memory and distributed setup to address scalability. More specifically, we introduce new techniques for ...

Journal: :Vision Research 2015
Louise Kauffmann Alan Chauvin Nathalie Guyader Carole Peyrin

Visual analysis follows a default, predominantly coarse-to-fine processing sequence. Low spatial frequencies (LSF) are processed more rapidly than high spatial frequencies (HSF), allowing an initial coarse parsing of visual input, prior to analysis of finer information. Our study investigated the influence of spatial frequency processing order, accumulation mode (i.e. how spatial frequency info...

Journal: :NeuroImage 2004
Carole Peyrin Monica Baciu Christoph Segebarth Christian Marendaz

It has been suggested that visual scene recognition is mainly based on spatial frequency (Fourier) analysis of the image. This analysis starts with processing low spatial frequencies (LSF), followed by processing high spatial frequencies (HSF). Within the framework of the spatial frequency analysis, the right/left hemisphere would be predominantly involved in LSF/HSF analysis, respectively. The...

ژورنال: توانبخشی 2018

Objective Stuttering is one of the most common speech disorders that generate many complications in children and adults. This disorder involves behavioral, cognitive and emotional interactions. So, the purpose of the current study is to investigate the cognitive functions of students with stuttering. Materials & Methods A descriptive study, comprising of 30 students (8 females and 22 males) fr...

1997
Jiawei Han

On-line analytical processing (OLAP) has gained its popularity in database industry. With a huge amount of data stored in spatial databases and the introduction of spatial components to many relational or object-relational databases, it is important to study the methods for spatial data warehousing and on-line analytical processing of spatial data. This thesis investigates methods for spatial O...

2009
Chiara Meneghetti Valérie Gyselinck Francesca Pazzaglia Rossana De Beni

a r t i c l e i n f o The present study investigates the relation between spatial ability and visuo-spatial and verbal working memory in spatial text processing. In two experiments, participants listened to a spatial text (Experiments 1 and 2) and a non-spatial text (Experiment 1), at the same time performing a spatial or a verbal concurrent task, or no secondary task. To understand how individ...

2017
Gaetana Chillemi Alessandro Calamuneri Francesca Morgante Carmen Terranova Vincenzo Rizzo Paolo Girlanda Maria Felice Ghilardi Angelo Quartarone

OBJECTIVE Investigation of spatial and temporal cognitive processing in idiopathic cervical dystonia (CD) by means of specific tasks based on perception in time and space domains of visual and auditory stimuli. BACKGROUND Previous psychophysiological studies have investigated temporal and spatial characteristics of neural processing of sensory stimuli (mainly somatosensorial and visual), wher...

Journal: :Trends in cognitive sciences 2001
E Awh J Jonides

Spatial selective attention and spatial working memory have largely been studied in isolation. Studies of spatial attention have provided clear evidence that observers can bias visual processing towards specific locations, enabling faster and better processing of information at those locations than at unattended locations. We present evidence supporting the view that this process of visual sele...

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