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 20 of 52 for “"Scene Analysis"”.
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Conversational scene analysis
… conversations as being made up of a variety of scenes: in each scene, either one speaker is holding the floor or both are speaking at equal levels. Our goal is to find conversations, find the scenes within them, determine what is happening inside the scenes, and then use the scene structure to …
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Prediction-driven computational auditory scene analysis
… events in a human listener--the 'auditory scene analysis' of the acoustic information. Recent advances in the understanding of this process from experimental psychoacoustics have led to several efforts to build a computer model capable of the same function. This work is known as …
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Prediction-driven computational auditory scene analysis
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Tools for acquired scene analysis and transmission
… into an optimal combination of preset virtual scenes and real time control of the scene by a Wii device. Data manipulation methods vary depending on whether 2D or 3D data is being used. The choice between 2D versus 3D depends on the available bandwidth and processing power. For example, when …
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Visual attention models for far-field scene analysis
… this concept to the domain of far-field activity analysis by addressing the problem of determining where to look in a scene in order to capture interesting activity in progress. We pose the problem of attention as an unsupervised learning problem, in which the task is to learn from long-term …
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The role of texture in auditory scene analysis
Everyday auditory scenes contain sounds from many sources. For example, when crossing the street, you might hear sounds produced from the rumble of passing cars, the chatter of pedestrians, and the rapid tick of crosswalk signals. To make sense of this complex mixture of sounds, the auditory system …
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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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Audio-Visual Scene Analysis With Application in Sports Video
"The last part of the thesis presents our work on ""single-channel audio source separation"" using generative probabilistic models. The approach can be potentially very useful as a pre-processing step for the key audio ""objects"" detection."
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Image chunking : defining spatial building blocks for scene analysis
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1987.
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Large-scale acoustic scene analysis with deep residual networks
Many of the recent advances in audio event detection, particularly on the AudioSet dataset, have focused on improving performance using the released embeddings produced by a pre-trained model. In this work, we instead study the task of training a multi-label event classifier directly from the audio …
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Localization and separation of concurrent talkers based on principles of auditory scene analysis and multi-dimensional statistical methods
… approach allows to analyze acoustical scenes at low SNR, showing that the described strategies might help to interpret auditory processing.
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Real time imaging and infrared background scene analysis using the Naval Postgraduate School Infrared Search and Target Designation (NPS-IRSTD) System
The imaging in real time of infrared background scenes with the Naval Postgraduate School Infrared Search and Target Designation (NPS-IRSTD) System was achieved through extensive software developments in protected mode assembly language on an Intel 80386 33 Mhz computer. The new software processes …
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Listening with generative models
… I present a hierarchical Bayesian auditory scene synthesis model to address the perceptual organization of sound into sources and events. We aimed to bridge between classical auditory scene analysis phenomena and everyday sounds, asking whether common generative principles could explain …
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Geovisual methods and techniques for the development of three-dimensional tactical intelligence assessments
… in this study provides spatio-temporal GIS analysis as well as 3D geovisualisation and GIS programming. The work presents methods to enhance digital three-dimensional city models with application specific thematic information. This information facilitates further geovisual analysis, for …
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Sound-source recognition : a theory and computational model
… recognition to the process of auditory scene analysis has largely been neglected by researchers building computational models of the scene analysis process. This thesis proposes a theory of sound-source recognition, casting recognition as a process of gathering information to enable the …
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Redundancy reduction for computational audition, a unifying approach
… auditory functions, preprocessing, grouping and scene analysis. For auditory preprocessing, we prove that it is possible to evolve cochlear-like filters by adaptation to natural sounds. Following that and using the same principles as in preprocessing, we present a treatment that collapses the …
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Influence of spatial cues on the identification and the localization of objects in the auditory foreground
… is known about the effect of spatial cues on scene analysis when more than one auditory object is being presented. In this thesis dissertation, a novel two-object paradigm was used to investigate how spatial cues influence the identification and the localization of object in the auditory …
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