Data processing method
First Claim
1. A data processing method for processing hyperspectral image data of a scene, the method comprising:
- a) sequentially receiving portions of the data at a data buffer to form a data set comprising a predefined number of data portions;
b) calculating a set of global statistical parameters and data correction factors using the data forming the data set;
c) receiving a further data portion at the data buffer and simultaneously removing the earliest received data portion at the data buffer, from the data set,d) calculating a set of local statistical parameters using the data of the further data portion;
e) updating the set of global statistical parameters using the set of local statistical parameters;
f) correcting the data of the data portion removed from the data set using the correction factors; and
g) outputting the corrected data portion and set of global statistical parameters calculated using the data set comprising the removed data portion, to a processor.
1 Assignment
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Accused Products
Abstract
A data processing method is disclosed for processing hyperspectral image data of a scene. The method comprises sequentially receiving portions of the data at a data buffer to form a data set comprising a predefined number of data portions and calculating a set of global statistical parameters and data correction factors using the data forming the data set. The method further comprises receiving a further data portion at the data buffer and simultaneously removing the earliest received data portion at the data buffer, from the data set, and subsequently calculating a set of local statistical parameters using the data of the further data portion. The method further comprises updating the set of global statistical parameters using the set of local statistical parameters and correcting the data of the data portion removed from the data set using the correction factors. The method further comprises outputting the corrected data portion and set of global statistical parameters calculated using the data set comprising the removed data portion, to a processor.
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Citations
18 Claims
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1. A data processing method for processing hyperspectral image data of a scene, the method comprising:
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a) sequentially receiving portions of the data at a data buffer to form a data set comprising a predefined number of data portions; b) calculating a set of global statistical parameters and data correction factors using the data forming the data set; c) receiving a further data portion at the data buffer and simultaneously removing the earliest received data portion at the data buffer, from the data set, d) calculating a set of local statistical parameters using the data of the further data portion; e) updating the set of global statistical parameters using the set of local statistical parameters; f) correcting the data of the data portion removed from the data set using the correction factors; and g) outputting the corrected data portion and set of global statistical parameters calculated using the data set comprising the removed data portion, to a processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 16)
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8. A data processing method for processing hyperspectral image data of a scene, the method comprising:
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a) sequentially receiving portions of the data at a data buffer to form a data set comprising a predefined number of data portions; b) calculating a global set of statistical parameters and data correction factors using the data forming the data set; c) receiving a further data portion at the data buffer and simultaneously removing the earliest received data portion at the data buffer, from the data set, d) calculating a first set of local statistical parameters using the data of the further data portion; e) calculating a second set of local statistical parameters using the data of the removed data portion; f) updating the global set of statistical parameters using the first set of local statistical parameters; g) outputting the second set of local statistical parameters to a further data buffer; h) correcting the data of the data portion removed from the data set using the correction factors; and i) outputting the corrected data portion and global set of statistical parameters calculated using the data set comprising the removed data portion, to a processor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 17)
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18. An apparatus comprising a processor configured to process hyperspectral image data of a scene by executing the following data processing steps:
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a) sequentially receiving portions of the data at a data buffer to form a data set comprising a predefined number of data portions; b) calculating a global set of statistical parameters and data correction factors using the data forming the data set; c) receiving a further data portion at the data buffer and simultaneously removing the earliest received data portion at the data buffer, from the data set, d) calculating a first set of local statistical parameters using the data of the further data portion; e) calculating a second set of local statistical parameters using the data of the removed data portion; f) updating the global set of statistical parameters using the first set of local statistical parameters; g) outputting the second set of local statistical parameters to a further data buffer; h) correcting the data of the data portion removed from the data set using the correction factors; and i) outputting the corrected data portion and global set of statistical parameters calculated using the data set comprising the removed data portion, to a processor”
).
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Specification