Medical observation system, medical imaging device and imaging method

A medical observation system comprising:

• a light source configured to emit, to body tissue:
• first narrow band light, wherein a wavelength band of the first narrowband light is narrower than a wavelength band of white light, and
• second narrow band light, wherein a wavelength band of the second narrow band light is shorter than the wavelength band of the first narrow band light, and the wavelength band of the second narrow band light is configured to excite an advanced glycation end product,
• wherein the light source is configured to be controlled to emit the second narrow band light, and to selectively emit the first narrow band light with the second narrow band light;
• an imaging element comprising:
• plural pixels arranged in a two-dimensional matrix;
• and
• a color filter comprising red filters, green filters, and blue filters that are provided on corresponding light receiving surfaces of the plural pixels, wherein the imaging element is configured to generate image data by imaging at least one of returned light from the body tissue and fluorescence from the advanced glycation end product;
• and
• a cut filter provided on a light receiving surface side of first pixels of plural pixels provided with the green filters, the cut filter being configured to:
• shield light having a wavelength band comprising the wavelength band of the second narrow band light;
• and
• transmit therethrough light having a wavelength band comprising the wavelength band of the first narrow band light,
• wherein the cut filter is not provided on a light receiving surface side of second pixels of the plural pixels provided with the blue filters.