Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"Scene Perception"”.
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Context in object and scene perception
… setting is available in a glimpse and affects perception. Objects are perceived more accurately in typical rather than atypical settings and when they appear with related objects regardless of the setting. Backgrounds are perceived more accurately when they contain plausible rather than …
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Scaling 3D Scene Perception via Probabilistic Programming
… of the world. This is the problem of 3D scene perception. How do we transform raw visual input into 3D representations of the world? 3D scene perception has numerous applications from robotics to augmented reality. Despite the advances over the last decade, 3D perception remains a major …
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Scene Perception for Simulated Intuitive Physics via Bayesian Inverse Graphics
… inferences about unfamiliar objects. Emulating scene understanding capacities in computational models has numerous applications ranging from autonomous driving to virtual reality. Despite the proficiency demonstrated by deep neural networks in pattern recognition, recent works have uncovered …
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Off-line Foveated Compression and Scene Perception: An Eye-Tracking Approach
… the mechanisms behind gaze control during scene perception, thus investigating the prerequisites for such algorithms. Eye-movements are recorded from observers viewing contrast manipulated images depicting natural scenes under a neutral task. We report that image semantics, rather than the …
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Attentional Allocation During the *Perception of Complex Scenes
Although the scene processing that occurs on the first fixation on a scene plays a crucial role in the development of a scene representation, this early processing is poorly understood. Inferences about the distribution of attention during the first fixation are often drawn on the basis of eye …
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Visual features for scene recognition and reorientation
In this thesis, I investigate how scenes are represented by the human visual system and how observers use visual information to reorient themselves within a space. Scenes, like objects, are three-dimensional spaces that are experienced through twodimensional views and must be recognized from many …
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Eye-movement control during scene viewing
… to investigate how people perceive real-world scenes. A key issue for understanding eye-movement control during scene viewing is the roles of central and peripheral vision, which process information differently and are therefore specialized for different tasks (object identification and …
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RGB-D Likelihood for 3D Inverse Graphics
A central challenge in 3D scene perception via inverse graphics is robustly modeling the gap between 3D graphics and real-world data. We propose a novel 3D Neural Embedding Likelihood (3DNEL) over RGB-D images to address this gap. 3DNEL uses neural embeddings to predict 2D-3D correspondences from …
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The perception of good and bad natural scene category exemplars
Images of natural scenes are easily categorized by human observers. Recent work has shown that “good” images, or those that are more representative of their category, are more easily categorized than “bad” ones. The present research investigates a novel hypothesis: that “good” images of scenes are …
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An ERP Investigation into the Influence of Spatial Relevance on Attentional Deployment
… has demonstrated that during search tasks, scene regions with a high probability of containing the target (spatially relevant regions) are more likely to be attended than regions with low target-probability (spatially irrelevant regions; Chastain & Cheal, 1997; Pereira & Castelhano, 2018; …
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Is attention necessary for the representational advantage of good exemplars over bad exemplars?
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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The robot's vista space : a computational 3D scene analysis
… structures they are talking about, and what scene elements they are going to manipulate. This thesis focuses on the analysis of a robot's vista space. Mechanisms for extracting relevant spatial information are developed which enable the robot to recognize in which place it is, to detect the …
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Holistic indoor scene understanding, modelling and reconstruction from single images.
3D indoor scene understanding in computer vision refers to perceiving the semantic and geometric information in a 3D indoor environment from partial observations (e.g. images or depth scans). Semantics in a scene generally involves the conceptual knowledge such as the room layout, object …
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The scene superiority effect: object recognition in the context of natural scenes
… experiments investigate the effect of background scene semantics on object recognition. Although past research has found that semantically consistent scene backgrounds can facilitate recognition of a target object, these claims have been challenged as the result of post-perceptual response bias …
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Eye Movements and Hemodynamic Response during Emotional Scene Processing: Exploring the Role of Visual Perception in Intrusive Mental Imagery
… participants (N = 39) viewed and imagined scenes with negative or neutral emotional valence. Self-report behavioral assessments of baseline vividness of visual imagery and various cognitive factors were combined with these physiological measures to investigate the potential relationship …
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Connecting Perceptual Organization To Time Perception
<p>Previous research suggests that the organizational cue, connectedness, can influence time judgments of geometric shapes. The stimuli of those experiments consisted of geometric shapes with lines. In the organized set of stimuli, the lines joined the shapes together, and in the unorganized set of …