Upendra P. Poudel
Wayne State University
4 Papers
44 Citations
Upendra P. Poudel is an academic researcher from Wayne State University. The author has contributed to research in topics: Edge detection & Digital image. The author has an hindex of 4, co-authored 4 publications.
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Papers
High-accuracy edge detection with Blurred Edge Model
TL;DR: A blurred edge model is adopted here, and a least-squared-error based solution is derived that is compared with two other sub-pixel edge detectors and shows higher accuracy of the proposed algorithm, even for image data with significant noise.
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Structural damage detection using digital video imaging technique and wavelet transformation
Upendra P. Poudel,G. Fu,J. Ye +2 more
TL;DR: In this paper, the authors used a high-speed digital video camera to obtain displacement time series at sub-pixel resolution, and the mode shapes were obtained from the time series to find the mode shape difference functions between the damaged and the reference states.
96
Wavelet transformation of mode shape difference function for structural damage location identification
TL;DR: In this article, a new approach to structural damage detection is presented using mode shape difference between the reference and damage states, in order to capture and display the signal of damage, wavelet transformation is performed upon the mode-shape difference function.
48
Edge-Based Close-Range Digital Photogrammetry for Structural Deformation Measurement
TL;DR: In this paper, the authors proposed a close-range digital photogrammetric system based on edge detection for structural deformation measurement, which uses several digital images of the structure, taken from a number of different stations before and after the deformation is induced, to establish spatial relationships of the interested edges, identified by using a new high-precision method.
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