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Identification Of Streamflow Changes Across The Continental United States Using Variable Record Lengths, Kazi Tamaddun, Ajay Kalra, Sajjad Ahmad
Identification Of Streamflow Changes Across The Continental United States Using Variable Record Lengths, Kazi Tamaddun, Ajay Kalra, Sajjad Ahmad
Civil and Environmental Engineering and Construction Faculty Research
The study focused on investigating the presence of change patterns in 600 unimpaired streamflow stations across the continental U.S. at different time intervals to understand the change patterns that can provide significant insight regarding climate variability and change. Each station had continuous streamflow data of at least 30 years (the entire dataset covered a range of 109 years). Presence of trends and shifts were detected in water year and the four seasons (fall, winter, spring, and summer) analyzing the water year and seasonal mean flows. Two non-parametric tests, namely, the Mann-Kendall test and the Pettitt’s test were used to identify …
Feature Coverage Indexes For Dual Homography Estimation In Constructing Panorama Image, Kyungkoo Jun, Si Kim
Feature Coverage Indexes For Dual Homography Estimation In Constructing Panorama Image, Kyungkoo Jun, Si Kim
Civil and Environmental Engineering and Construction Faculty Research
Enlarged images can be obtained by various methods. Stitching is one of the efficient methods. It can produce panoramic images by stitching adjacent images which contain overlapping regions even though they are obtained through separate image sensors. Images that contain multiple different planes are hard to be stitched together because each plane has a different homography matrix for perspective warping. For this, a dual homography was proposed. However its performance varies depending on feature detectors which are used to find matching feature points between images. In this paper, we propose three feature coverage indexes which evaluate the stitching performance of …