MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202547084510 A) filed by Nokia Technologies Oy on September 05, 2025, for Adaptive Quantization Of Displacement Vectors In V-Dmc And Use Thereof.
Inventors include Martemianov, Aleksei; Rondao Alface, Patrice; Kondrad, Lukasz; Ilola, Lauri Aleksi; and Schwarz, Sebastian.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: In an encoding process of V-DMC (2200), an apparatus performs the following: setting (2205) a target subdivision iteration count to reach a comparable target face count as in an original mesh frame corresponding to the dynamic mesh coding of the video; computing (2210) displacement vectors for each LOD defined by the subdivision iteration count; generating (2215) such displacement vectors for multiple input mesh frames; quantizing (2220) the generated displacement vectors; signaling (2265) the quantization information used to generate the quantized displacement vectors; packing the quantized displacement vectors in displacement video frame(s); and coding displacement video frame(s) as a displacement bitstream that is part of bitstream for the V-DMC. A decoding apparatus receives (2305) the bitstreams, unpacks (2325) the displacement quantization information, decodes (2335) displacement vector components based at least on unpacked displacement quantization information, wherein the decoded displacement vector components comprise components for at least a first axis, and uses (2360) the decoded displacement vector components to form reconstructed data.
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