Device and method for processing spectrum data of image sensor
AssigneesSamsung Electronics Co., Ltd., Korea University Research and Business Foundation
InventorsSuyeon Lee, Q-Han Park, Unjeong Kim, Hyunjun Ma
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Abstract
Provided are a method and a device, for processing spectrum data of an image sensor. The method includes obtaining spectrum response signals corresponding to channels of spectrum data of light, the spectrum data being obtained from an object by an image sensor; determining a set of bases corresponding to the obtained spectrum response signals; performing, based on the determined set of bases, a change of basis on at least one basis included in the determined set of bases; and generating, by using a pseudo inverse, reconstructed spectrum data from the spectrum response signals on which the change of basis has been performed.
Claims17
A method of processing spectrum data, the method comprising:
- obtaining spectrum response signals corresponding to channels of spectrum data of light, the spectrum data being obtained from an object by an image sensor;
- determining a set of bases corresponding to the obtained spectrum response signals;
- performing, based on the determined set of bases, a change of basis on at least one basis included in the determined set of bases;
- and
- generating, by using a pseudo inverse, reconstructed spectrum data from the spectrum response signals on which the change of basis has been performed,
- wherein the performing the change of basis comprises:
- determining at least one basis having a singular value, which is less than a threshold value, among the bases corresponding to the obtained spectrum response signals;
- and
- replacing the singular value of the determined at least one basis with a certain singular value.
A device for processing spectrum data, the device comprising:
- a light source configured to irradiate light toward an object;
- an image sensor configured to obtain spectrum response signals corresponding to channels of spectrum data of light, the spectrum data being obtained from the object by the image sensor;
- and
- a processor configured to:
- determine a set of bases corresponding to the obtained spectrum response signals;
- perform, based on the determined set of bases, a change of basis on at least one basis included in the determined set of bases;
- and
- generate, by using a pseudo inverse, reconstructed spectrum data from the spectrum response signals on which the change of basis has been performed,
- wherein the processor is further configured to determine at least one basis having a singular value less than a threshold value among the bases corresponding to the obtained spectrum response signals, and replace the singular value of the determined at least one basis with a certain singular value.
A non-transitory computer-readable recording medium having recorded thereon a program for executing a method of processing spectrum data, the method including:
- obtaining spectrum response signals corresponding to channels of spectrum data of light, the spectrum data being obtained from an object by an image sensor;
- determining a set of bases corresponding to the obtained spectrum response signals;
- performing, based on the determined set of bases, a change of basis on at least one basis included in the determined set of bases;
- and
- generating, by using a pseudo inverse, reconstructed spectrum data from the spectrum response signals on which the change of basis has been performed,
- wherein the performing the change of basis comprises:
- determining at least one basis having a singular value, which is less than a threshold value, among the bases corresponding to the obtained spectrum response signals;
- and
- replacing the singular value of the determined at least one basis with a certain singular value.
Dependencies are inferred from the claim text.