MUMBAI, India, Aug. 31 -- Intellectual Property India has published a patent application (202541124341 A) filed by International Institute Of Information Technology, Hyderabad on December 09, 2025, for Autonomous Wheelchair Navigation System For Providing Adaptive Navigation In Dynamic And Semantically Complex Environments.
Inventors include Dr. K Madhava Krishna; Dr. Vineet Gandhi; Laksh Nanwani; Sarthak Chittawar; Kumaraditya Gupta; and Dr. A. H. Abdul Hafez.
The application for the patent was published on August 28, 2026, under issue no. 35/2026.
Abstract: An autonomous wheelchair navigation system (100) is provided for adaptive navigation in dynamic and semantically complex environments using semantic scene understanding and natural language interaction. The system includes a perception unit (102) comprising RGB-D cameras and a 3D LiDAR for capturing real-time visual and depth data of the surroundings. A mapping engine (104) incorporating a Simultaneous Localization and Mapping (SLAM) processor (106) and an open-set 3D semantic instance mapping (O3D-SIM) pipeline (108) processes the data to generate semantic instance maps integrating geometric and semantic information. A language interpretation engine (110) interprets user speech commands to extract navigation goals. A navigation controller (112) plans and executes trajectories, while a wheelchair motion controller (114) converts planned paths into motor actuation signals. A scene-change detection system (116) continuously updates the O3D-SIM (118) to detect, reason, and adapt to object displacements, enabling autonomous re-planning and context-aware navigation. FIG. 1
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