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US 2010/0245616 A1Published application
Image processing device, imaging device, computer-readable recording medium, and image processing method
AssigneeOlympus Corporation
InventorsKoichiro YOSHINO, Hiroshi SUZUKI
Life of this patent
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Abstract
An image processing device captures a normal light image of an observed region via a plurality of color filters having different spectral characteristics, respectively, generates a uniform image having low contrast by extracting each picture signal corresponding to a picture signal in a wavelength band for which light absorption characteristic of a contrast region in the observed region becomes low, and corrects each picture signal of a fluorescence image of the observed region by using the uniform image.
Claims11
An image processing device comprising:
- a normal-light-image storage unit that stores therein each picture signal of a normal light image of an observed region, the normal light image being captured by a normal-light imaging unit that receives normal light from the observed region via a plurality of color filters having different spectral characteristics;
- a fluorescence-image storage unit that stores therein each picture signal of a fluorescence image of the observed region, the fluorescence image being captured by a fluorescence imaging unit that receives fluorescence generated from the observed region irradiated with excitation light;
- a uniform-image generating unit that extracts each picture signal corresponding to a specific color filter, which is one of the plurality of color filters and transmits light in a wavelength band for which a light absorption property of a contrast region in the observed region is low, from among each picture signal of the normal light image stored in the normal-light-image storage unit, and generates a uniform image of a wavelength-band component corresponding to the specific color filter based on each extracted picture signal;
- and
- a correction processing unit that corrects each picture signal of the fluorescence image stored in the fluorescence-image storage unit by using the uniform image.
2 more elements
An imaging device comprising:
- a light source unit that switchably applies normal light and excitation light to an observed region;
- a normal-light imaging unit that includes a plurality of color filters having different spectral characteristics and captures a normal light image of the observed region by receiving, via the plurality of color filters, normal light from the observed region irradiated with the normal light;
- a fluorescence imaging unit that captures a fluorescence image of the observed region by receiving fluorescence generated from the observed region irradiated with the excitation light;
- a uniform-image generating unit that extracts each picture signal corresponding to a specific color filter, which is one of the plurality of color filters and transmits light in a wavelength band for which a light absorption property of a contrast region in the observed region is low, from among each picture signal of the normal light image captured by the normal-light imaging unit, and generates a uniform image of a wavelength-band component corresponding to the specific color filter based on each extracted picture signal;
- and
- a correction processing unit that corrects each picture signal of the fluorescence image captured by the fluorescence imaging unit by using the uniform image.
3 more elements
A computer readable medium including programmed instructions for performing an image processing, wherein the instructions, when executed by a computer, cause the computer to perform:
- acquiring each picture signal of a normal light image of an observed region, the normal light image being captured by a normal-light imaging unit that receives normal light from the observed region via a plurality of color filters having different spectral characteristics, and each picture signal of a fluorescence image of the observed region, the fluorescence image being captured by a fluoresce imaging unit that receives fluorescence generated from the observed region irradiated with excitation light;
- extracting each picture signal corresponding to a specific color filter, which is one of the plurality of color filters and transmits light in a wavelength band for which a light absorption property of a contrast region in the observed region is low;
- generating a uniform image of a wavelength-band component corresponding to the specific color filter based on each picture signal extracted at the extracting;
- and
- correcting each picture signal of the fluorescence image by using the uniform image.
2 more elements
An image processing method comprising:
- acquiring each picture signal of a normal light image of an observed region, the normal light image being captured by a normal-light imaging unit that receives normal light from the observed region via a plurality of color filters having different spectral characteristics, and each picture signal of a fluorescence image of the observed region, the fluorescence image being captured by a fluoresce imaging unit that receives fluorescence generated from the observed region irradiated with excitation light;
- extracting each picture signal corresponding to a specific color filter, which is one of the plurality of color filters and transmits light in a wavelength band for which a light absorption property of a contrast region in the observed region is low;
- generating a uniform image of a wavelength-band component corresponding to the specific color filter based on each picture signal extracted at the extracting;
- and
- correcting each picture signal of the fluorescence image by using the uniform image.
2 more elements
Dependencies are inferred from the claim text.