MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202641061917 A) filed by Amrita Vishwa Vidyapeetham on May 15, 2026, for Transformer-Based Circular Polariscope Image Reconstruction.
Inventors include M. S. , Vishnu Mohan; Mohan Prasanna, Hariprasad; and Menon, Vivek.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: The present disclosure provides a circular polariscope image reconstruction system (100) and a method (400) for generating reconstructed circular polariscope images (122) from plane polariscope images (104). The system (100) includes a weight-shared encoder (108) including an EfficientNet backbone (108-2) for extracting multi- scale feature maps (110), a multi-source fusion transformer (112) implementing scaled dot-product attention (308) and mean pooling (310) for generating fused feature representations (114), a decoder (116) with skip connections (124) for progressive upsampling, and a segmentation head (120) for producing the reconstructed circular polariscope image (122). Unlike conventional circular polariscope configurations requiring quarter wave plates (210, 212) and precise optical alignment, this transformer-based approach enables high-fidelity stress-induced retardation field visualization, where the two to three images are fewer than required for classical phase-shifting reconstruction, thereby reducing hardware complexity while maintaining reconstruction accuracy.
Disclaimer: Curated by HT Syndication.
