发明名称 |
Fluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method |
摘要 |
A fluoroscopy apparatus includes a preprocessing section that multiplies at least one of a fluorescence image and a reference-light image by a coefficient by which distance characteristics of fluorescence intensity and distance characteristics of return-light intensity acquired from a standard sample in advance are made directly proportional to each other to generate a correction fluorescence image and a correction reference-light image; a divided-image generating section that divides the correction fluorescence image by the correction reference-light image to generate a divided image; a threshold-setting section that sets a threshold based on a mean grayscale level of pixels in the divided image; an image-adjusting section that enhances contrast between a region with grayscale levels above the set threshold set by the threshold-setting section and a region with grayscale levels below the threshold in the divided image; and a monitor that displays the divided image with the enhanced contrast. |
申请公布号 |
US9182347(B2) |
申请公布日期 |
2015.11.10 |
申请号 |
US201414173202 |
申请日期 |
2014.02.05 |
申请人 |
OLYMPUS CORPORATION |
发明人 |
Ishihara Yasushige |
分类号 |
G06K9/40;G01N21/64;A61B1/04;A61B1/06;G02B23/24;A61B1/00;G06T5/00 |
主分类号 |
G06K9/40 |
代理机构 |
Scully, Scott, Murphy & Presser, PC |
代理人 |
Scully, Scott, Murphy & Presser, PC |
主权项 |
1. A fluoroscopy apparatus comprising:
a light source that irradiates a subject with excitation light and reference light; a fluorescence-image acquiring section that captures fluorescence emitted from the subject irradiated with the excitation light from the light source to acquire a fluorescence image; a reference-light-image acquiring section that captures return light returning from the subject irradiated with the reference light from the light source to acquire a reference-light image; a preprocessing section that multiplies at least one of the fluorescence image and the reference-light image by a coefficient by which distance characteristics of fluorescence intensity and distance characteristics of return-light intensity acquired from a standard sample in advance are made directly proportional to each other to generate a correction fluorescence image and a correction reference-light image; a divided-image generating section that divides the correction fluorescence image generated by the preprocessing section by the correction reference-light image to generate a divided image; a threshold-setting section that sets a threshold based on a mean grayscale level of pixels in the divided image generated by the divided-image generating section; an image-adjusting section that enhances contrast between a region with grayscale levels above the threshold set by the threshold-setting section and a region with grayscale levels below the threshold in the divided image; and a display that displays the divided image with the contrast enhanced by the image-adjusting section. |
地址 |
Tokyo JP |