MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202431091216 A) filed by Indian Institute Of Technology, Kharagpur, West Bengal, on Nov. 22, 2024, for 'a non-invasive blood parameter estimation and anemia classification system using eye conjunctival imaging.'
Inventor(s) include Das, Dr. Debanjan; and Gonthina, Sai Sriram.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a non-invasive system (100) for estimating blood parameters and classifying anemia using ocular conjunctival imaging. The system comprises an optical imaging unit (120) configured to capture high-resolution images of the conjunctiva under controlled illumination, a processing unit (104) coupled with a memory (106), and a display interface (122) for presenting diagnostic results. The processing unit identifies the conjunctival region using a Haar cascade-based segmentation technique, extracts red, green, and blue intensity values, and computes normalized chromatic ratios and inter-channel differences. The derived spectral features are analyzed through SHAP-based feature attribution, followed by a cascaded regression sequence of six models estimating hemoglobin, hematocrit, red blood cell count, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. A hierarchical rule-based classification determines anemia type using predicted hemoglobin and MCV values. A power supply unit (118) enables portable, real-time, and physiologically interpretable hematological assessment."
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