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Full-Text Articles in Social and Behavioral Sciences
Bicyclists' Uptake Of Traffic-Related Air Pollution: Effects Of The Urban Transportation System, Alexander Y. Bigazzi
Bicyclists' Uptake Of Traffic-Related Air Pollution: Effects Of The Urban Transportation System, Alexander Y. Bigazzi
Dissertations and Theses
While bicyclists and other active travelers obtain health benefits from increased physical activity, they also risk uptake of traffic-related air pollution. But pollution uptake by urban bicyclists is not well understood due to a lack of direct measurements and insufficient analysis of the determinants of exposure and ventilation (breathing). This knowledge gap impedes pollution-conscious transportation planning, design, and health impact assessment.
The research presented in this dissertation generates new connections between transportation system characteristics and pollution uptake by bicyclists. The primary research questions are: 1) how do urban bicyclists' intake and uptake of air pollution vary with roadway and travel …
Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon
Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon
Dissertations and Theses
This thesis investigates the application of GIST features [13] to the problem of object detection in images. Object detection refers to locating instances of a given object category in an image. It is contrasted with object recognition, which simply decides whether an image contains an object, regardless of the object's location in the image.
In much of computer vision literature, object detection uses a "sliding window" approach to finding objects in an image. This requires moving various sizes of windows across an image and running a trained classifier on the visual features of each window. This brute force method can …