Invention Publication
- Patent Title: METHOD AND SYSTEM FOR MUELLER MATRIX POLARIMETRIC CHARACTERIZATION OF TRANSPARENT OBJECTS
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Application No.: US18066374Application Date: 2022-12-15
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Publication No.: US20230204494A1Publication Date: 2023-06-29
- Inventor: ACHANNA ANIL KUMAR , TAPAS CHAKRAVARTY , SUBHASRI CHATTERJEE , ARPAN PAL , JAYAVARDHANA RAMA GUBBI LAKSHMINARASIMHA , ROKKAM KRISHNA KANTH
- Applicant: Tata Consultancy Services Limited
- Applicant Address: IN Mumbai
- Assignee: Tata Consultancy Services Limited
- Current Assignee: Tata Consultancy Services Limited
- Current Assignee Address: IN Mumbai
- Priority: IN 2121061180 2021.12.28
- Main IPC: G01N21/23
- IPC: G01N21/23 ; G01J4/04 ; G01N21/958

Abstract:
Existing Mueller Matrix polarization techniques that rely only on polarization properties are insufficient for accurate characterization of transparent objects. Embodiments of the present disclosure provide a method and system for Mueller Matrix polarimetric characterization of transparent object using optical properties along with the polarization properties to accurately characterize the transparent object. The polarization properties of are derived from a decomposed Mueller matrix element. Additionally, the method derives the optical properties by further subjecting the decomposed Mueller matrix element to Fresnel’s law-based analysis and a reverse Monte Carlo analysis to extract optical properties such as a material refractive index and a material attenuation index. Optical properties vary with changes in the material property caused due to several factors such as manufacturing defect, aberration, inclusion of an impurity such as bubble or dust etc. Thus, considering the optical properties along with the polarization properties enables enhanced, accurate characterization of the transparent object.
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