Spatiotemporal sensistivity and visual attention for efficient rendering of dynamic environments

Real-Time Perceptual Rendering with Computational Visual Attention Tracking in Virtual Environments Real-Time Perceptual Rendering with Computational Visual Attention Tracking in Virtual Environments

An fMRI study of human visual cortex in response to spatiotemporal properties of visual stimuli

  ABSTRACT  Background: The brain response to temporal frequencies (TF) has been already reported, but with no study reported for different TF with respect to various spatial frequencies (SF).  Materials and Methods: fMRI was performed by 1.5T GE-system in 14 volunteers during checkerboard, with TFs of 4, 6, 8 and 10Hz in low and high SFs of 0.5 and 8cpd.  Results: Average percentage BOLD signa...

An Efficient Approach for Bottleneck Resource(s) Detection Problem in the Multi-objective Dynamic Job Shop Environments

Nowadays energy saving is one of the crucial aspects in decisions. One of the approaches in this case is efficient use of resources in the industrial systems. Studies in real manufacturing systems indicating that one or more machines may also act as the Bottleneck Resource/ Resources (BR). On the other hand according to the Theory of Constraints (TOC), the efficient use of resources in manufact...

A Bottom-Up Spatiotemporal Visual Attention Model for Video Analysis

A video analysis framework based on spatiotemporal saliency calculation is presented. We propose a novel scheme for generating saliency in video sequences by taking into account both the spatial extent and dynamic evolution of regions. Towards this goal we extend a common image-oriented computational model of saliency-based visual attention to handle spatiotemporal analysis of video in a volume...

Attention for Computer Graphics Rendering

We present a method to accelerate global illumination computation in pre-rendered animations by taking advantage of visual saliency and limitations of the human visual system. A visual importance map, constructed from saliency and visual sensitivity model, is used to accelerate rendering. Results indicate an order of magnitude improvement in computational speed. I) Efficient Realistic Rendering...