Abstract:
The present invention is directed to methods and apparatus for pest management using remote sensing technology. One aspect of the present invention relates to a method for detecting plant-parasitic nematodes using hyperspectral reflectance data. Another aspect of the present invention relates to a device for determining the population of reniform nematode in a target. The further aspect of the present invention relates to a method for managing nematode population with variable rate applications of nematicides.
Abstract:
This invention refers to an imaging method and apparatus capable of performing non-destructive, in situ analysis of art-objects. The invention relays on the comparison of diffuse reflectance and/or fluorescence spectra (intensity vs. wavelength), of painting material models of known composition, with the intensities emitted and captured at the same wavelengths and for any spatial point of the art-object of unknown composition. This composition, performed for any spatial point of the area of interest, improves notably the diagnostic information and enables the analysis of heterogeneous art-objects.
Abstract:
Methods of determining asymmetric properties of structures are described. A method includes measuring, for a grating structure, a first signal and a second, different, signal obtained by optical scatterometry. A difference between the first signal and the second signal is then determined. An asymmetric structural parameter of the grating structure is determined based on a calculation using the first signal, the second signal, and the difference.
Abstract:
A data processing apparatus that processes a spectral data item which stores, for each of a plurality of spectral components, an intensity value, includes a spectral component selecting unit and a classifier generating unit. The spectral component selecting unit is configured to select, based on a Mahalanobis distance between groups each composed of a plurality of spectral data items or a spectral shape difference between groups each composed of a plurality of spectral data items, a plurality of machine-learning spectral components from among the plurality of spectral components of the plurality of spectral data items. The classifier generating unit is configured to perform machine learning by using the plurality of machine-learning spectral components selected by the spectral component selecting unit and generate a classifier that classifies a spectral data item.
Abstract:
A spectroscopic method for spectroscopic detection and identification of bacteria in culture is disclosed. The method incorporates construction of at least one data set, which may be a spectrum, interference pattern, or scattering pattern, from a cultured sample suspected of containing said bacteria. The data set is corrected for the presence of water in the sample, spectral features are extracted using a principal components analysis, and the features are classified using a learning algorithm. In some embodiments of the invention, for example, to differentiate MRS A from MSSA, a multimodal analysis is performed in which identification of the bacteria is made based on a spectrum of the sample, an interference pattern used to determine cell wall thickness, and a scattering pattern used to determine cell wall roughness. An apparatus for performing the method is also disclosed, one embodiment of which incorporates a multiple sample analyzer.
Abstract:
Method for the characterisation and classification of kidney stones, comprised the following stages: (a) Taking a series of kidney stone samples and cutting them to observe their interior, obtaining the flattest possible surface, (b) The technique of Hyperspectral Imaging (HSI) is applied to obtain the spectra of previously cut kidney stones, selecting a series of Regions of Interest (ROI) and analysing the image using Principal Component Analysis (PCA) (c) The main species are identified using Factor Analysis (FA) (d) Outliers are identified using Principal Component Analysis (PCA) (e) The different types of kidney stones are analysed using Principal Component Analysis (PCA) (f) The data obtained from the Principal Component Analysis (PCA) are subject to Artificial Neural Networks (ANN) for classification.
Abstract:
In or near real-time monitoring of fluids can take place using an opticoanalyiical device that is configured for monitoring the fluid. Fluids can be monitored prior to or during their introduction into a subterranean formation using the opticoanalyiical devices. Produced fluids from a subterranean formation can be monitored in a like manner. The methods can comprise providing an acidizing fluid comprising a base fluid and at least one acid; introducing the acidizing fluid into a subterranean formation; allowing the acidizing fluid to perform an acidizing operation in the subterranean formation; and monitoring a characteristic of the acidizing fluid or a formation fluid using at least a first opticoanalyiical device within the subterranean formation, during a flow back of the acidizing fluid produced from the subterranean formation, or both.
Abstract:
Method for the characterisation and classification of kidney stones, comprised the following stages: (a) Taking a series of kidney stone samples and cutting them to observe their interior, obtaining the flattest possible surface, (b) The technique of Hyperspectral Imaging (HSI) is applied to obtain the spectra of previously cut kidney stones, selecting a series of Regions of Interest (ROI) and analysing the image using Principal Component Analysis (PCA) (c) The main species are identified using Factor Analysis (FA) (d) Outliers are identified using Principal Component Analysis (PCA) (e) The different types of kidney stones are analysed using Principal Component Analysis (PCA) (f) The data obtained from the Principal Component Analysis (PCA) are subject to Artificial Neural Networks (ANN) for classification.
Abstract:
A hyperspectral method for detecting the present condition of an avian egg is disclosed in which a neural network algorithm is used to compare the spectrum of a test egg against a spectral library. The method can detect fertility with greater than 90% reliability on the day of laying and the gender of the chick with greater than 75% reliability on the 12th day after laying.