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Conventional methods for soil element content determination based on laboratory analyses are costly and time-consuming. A soil reflectance spectrum is an alternative approach for soil element content estimation with the advantage of being rapid, non-destructive, and cost effective. Visible/near-infrared spectra (350nm to 2500nm) were measured from 105 soil samples originating from 30 apple orchards...
In most power allocation systems the fusion performance, such as the Mean Square Estimation error (MSE), often changes with the channel fading gain. So their optimal power allocation algorithms are usually not optimal. In this paper, we consider power allocation problem in wireless sensor networks with fading channel gain. The sensors amplify-and-forward their measurements (using uncoded analog transmission)...
A channel-sharing method was proposed to improve the bandwidth and energy efficiency per detection task in wireless sensor network. The sensor nodes transmitted their log-likelihood ratios (LLR) to the fusion center in approximately descending order of the absolute value of their LLRs by modifying the value of backoff timer and frame interval according to the values of their LLRs. Simulation results...
Gating techniques for maneuvering target tracking using a joint probability data association filter (JPDAF) are considered in this paper. A way of estimating the gate size via the performance of the data association filter has been proposed recently, by which the gate size can be estimated by looking for the optimal performance of the data association filter. Combining the elliptic tracking gate with...
In this paper, we study the identity-independent head pose estimation problem, in order to handle the appearance variations, we consider the pose data lying on multiple manifolds. We present a novel manifold clustering method to construct multiple manifolds each of which characterizes the underlying subspace of some subjects. We first construct a set of n-simplexes of subjects by using the similarity...
In this paper, a discriminative representation method of head images is proposed, which is based on parts and poses for identity-independent head pose estimation. Head images are preprocessed to enhance the facial features and eliminate the identity information by skin color model and Laplacian of Gaussian transform. Then, the preprocessed images are used to construct a eigenpose subspace by a matrix...
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