MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511115492 A) filed by Nims University, Jaipur, Rajasthan, on Nov. 22, 2025, for 'optical reference ladder for image capture calibration.'
Inventor(s) include Akshat Pratap Singh; Gayatri Pandey; and Vaibhav Tamrakar.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a system (100) and method (200) for color calibration of mobile computing device cameras to ensure accurate and consistent color reproduction in varying lighting conditions. The system comprises a photonic calibration ladder (101) embedded within a structural element of an environment, the ladder incorporating structural-color elements (101a) fabricated using nanolithography for long-term stability. A mobile computing device (102) equipped with a camera (102a) captures images of the calibration ladder, while a software module (103) detects its geometric pattern, measures perceived color values, and compares them against pre-stored reference data. Deviations caused by ambient lighting or sensor bias are quantified as a color shift (103a), enabling the generation of a transformation matrix. This matrix is applied to produce a color-corrected image (104) or live feed output. The invention thus provides an embedded, automated, and user-friendly calibration framework for accurate digital imaging."
Disclaimer: Curated by HT Syndication.
