NEAR-INFRARED SPECTRUM IMAGING SYSTEM AND METHOD FOR DIAGNOSIS OF DEPTH AND AREA OF BURN SKIN NECROSIS

摘要

A near-infrared spectrum imaging system for diagnosis of the depth and the area of burn skin necrosis comprises a spectrum imager and a computer controlled system. The spectrum imaging system comprises a light source (101), an optical lens (102), a filter (103), a driving controller (105a, 105b, 104), and a CCD camera (106). The filter (103) uses a wide-spectrum liquid crystal tunable filter (LCTF) or an acousto-optic tunable filter (AOTF) that obtain 1100-2500 nm waveband spectral signals of burn skin necrosis tissue of a target region. A compute controlled system is internally provided with a universal module, a data module, a spectrum correction module, a spectrum matching module, and a burn wound three-dimensional synthesizing module. The spectrum imager obtains spectral image data of burn skin necrosis tissue of a target region and inputs the data into the computer controlled system, and the computer controlled system performs image analysis and processing of the data; the depth and the area of burn of the target region can be obtained by means of spectral matching and recognition on a spectral reflectance curve corresponding to each image pixel in an spectral image and a standard spectral reflectance curve in a burn skin necrosis spectral database in a data module, and the data is synthesized into a three-dimensional image for display.

主权项

1. A near-infrared spectrum imaging system for diagnosis of the depth and the area of burn skin necrosis comprising a spectrum imager and a computer controlled system, characterized in that:
the spectrum imager comprises a light source, an optical lens, a filter, a driving controller, and a CCD camera; the filter uses a wide-spectrum liquid crystal tunable filter (LCTF) or an acousto-optic tunable filter (AOTF), which obtains spectral signals of 1100-2500 nm waveband; the computer controlled system is internally provided with a universal module, a data module; a spectrum correction module, a spectrum matching module, and a burn wound three-dimensional synthesizing module; the near-infrared spectrum imaging system obtains spectral image data of burn skin necrosis tissue of a target region by the spectrum imager, inputs the data into the computer controlled system, and the computer controlled system performs image analysis and processing, that is, firstly spectrum correction is performed by means of the spectrum correction module, and spectral matching and recognition is performed by means of the spectrum matching module on a spectral reflectance curve corresponding to each image pixel in an corrected spectral image and a standard spectral reflectance curve of a burn skin necrosis spectral database in a data module, the depth and the area of burn of the target region are obtained, and finally a three-dimensional image of the target region is synthesized by the burn wound three-dimensional synthesizing module and is displayed by a display device; the standard spectral reflectance curve in a burn skin necrosis spectral database and burn depth in the pathology database have one to one matching relationship, features of the spectral reflectance curves of burn skin necrosis in 1100-2500 nm waveband are used to quantify necrotic signal of burn skin, and the necrotic signal and pathological data are correlated, so that the standard spectral reflectance curve in a burn skin necrosis spectral database is matched with burn depth in pathological database, each standard spectral curve in the burn skin necrosis spectral database represents a burn depth.