초록 ▼

Reflected imaging is used to perform non-invasive, in vivo analysis of a subject's vascular system. A raw reflected image is normalized with respect to the background to form a corrected reflected image. An analysis image is segmented from the corrected reflected image to include a scene of interest

Reflected imaging is used to perform non-invasive, in vivo analysis of a subject's vascular system. A raw reflected image is normalized with respect to the background to form a corrected reflected image. An analysis image is segmented from the corrected reflected image to include a scene of interest for analysis. The method and apparatus can be used to determine such characteristics as the hemoglobin concentration per unit volume of blood, the number of white blood cells per unit volume of blood, a mean cell volume, the number of platelets per unit volume of blood, and the hematocrit. Cross-polarizers can be used to improve visualization of the reflected image.

대표청구항 ▼

[ What is claimed is:] [89.] Apparatus for optically penetrating an object and detecting subsurface optical characteristics of an object, comprising:a light source for illuminating an object at a wavelength such that the multiple scattering depth is small compared to the penetration depth of the ill

[ What is claimed is:] [89.] Apparatus for optically penetrating an object and detecting subsurface optical characteristics of an object, comprising:a light source for illuminating an object at a wavelength such that the multiple scattering depth is small compared to the penetration depth of the illuminating light;a first polarizer for polarizing light from said light source;imaging means for detecting an image reflected from beneath the surface of the illuminated object; anda second polarizer disposed in a reflected light path between the object and said imaging means through which the scattered light passes, wherein a plane of polarization of said second polarizer is substantially orthogonal relative to a plane of polarization of said first polarizer.