MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202531106140 A) filed by National Institute Of Technology, Jamshedpur, Jharkhand, on Nov. 3, for 'a system and method for underwater vehicle access control using image-enhanced number plate recognition.'
Inventor(s) include Rahman, Uzra; and Yadav, Prof. Dilip Kumar.
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 present invention discloses a system (100) and method for underwater vehicle access control using number plate recognition. The system includes an underwater imaging node (108) comprising a global-shutter camera and an illumination assembly (110) configured to capture burst images of an approaching autonomous or remotely operated vehicle carrying an alphanumeric number plate. A processing unit (104) coupled to the imaging node performs sequential underwater image enhancement comprising color-channel equalization, correction of non-uniform illumination and scattering, and RGB color re-balancing. The enhanced images are processed to localize and geometrically rectify the number-plate region while enforcing structural constraints. A deep-learning recognizer based on a convolutional recurrent neural network or transformer decodes the plate text and assigns confidence scores. High-confidence frames are selected and fused through majority evaluation to produce a verified identification, which is cross-checked against an authorized-vehicle registry to issue ALLOW, HOLD, or DENY commands to a gate actuator (114)."
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