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Early detection and management of lymphedema (LE) can significantly reduce the potential of new symptoms and complications. In fact, effective diagnostic of LE can potentially affect the lives in the U.S. of nearly 500 000 current LE patients and over 2.4 million breast cancer survivors who are at-risk for developing this disease at some point in their lives. However, many cancer patients fail to...
We propose a new adaptive learning algorithm using multiple eigensubspaces to handle sudden as well as gradual changes in background due for example to illumination variations. To handle such changes, the feature space is organized into clusters representing the different background appearances. A local principal component analysis transformation is used to learn a separate eigensubspace for each...
We propose a robust and accurate method for multi-target geo-localization from airborne video. The difference between our approach and other approaches in the literature is fourfold: 1) it does not require gimbal control of the camera or any particular path planning control for the UAV; 2) it can instantaneously geolocate multiple targets even if they were not previously observed by the camera; 3)...
This paper presents a method for multi-view 3D modeling of human bodies using virtual stereopsis. The algorithm expands and improves the method used in, but unlike that method, our approach does not require multiple calibrated cameras and/or carefully-positioned turn tables. Instead, an algorithm using SIFT feature extraction is employed and an accurate motion estimation is performed to calculate...
Particle filtering (also known as the condensation algorithm) has been widely applied to model-based human motion capture. However, the number of particles required for the algorithm to work increases exponentially with the dimensionality of the model. In order to alleviate this computational explosion, we propose a two-level hierarchical framework. At the coarse level, the configuration space is...
In this paper we present the results from our visual servoing system for a real industrial robot. In contrast to other visual servoing system in the literature, the one presented here, which was derived from [4], uses a quaternion representation of the rotation instead of the more common matrix representation. By doing so, the proposed system avoids potential singularities introduced by the rotational...
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