Encoding and decoding imaging data

By generating and encoding texture and depth patches with color and density values for non-Lambertian surfaces and virtual objects, the method addresses the challenge of rendering view-dependent appearances, achieving realistic 6 DoF immersive video.

WO2026114700A1PCT designated stage Publication Date: 2026-06-04KONINKLIJKE PHILIPS NV
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
KONINKLIJKE PHILIPS NV
Filing Date
2025-11-19
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing methods for creating 6 DoF immersive video struggle to accurately render non-Lambertian reflecting surfaces and virtual objects due to their view-dependent appearance, which cannot be adequately captured using traditional image synthesis techniques.

Method used

The method involves generating texture and depth patches for both real and virtual objects on non-Lambertian surfaces, incorporating color and density values, and encoding these into a bitstream to enable realistic rendering at a target viewpoint, especially for curved surfaces by using multiple depth patches associated with different viewing angles.

Benefits of technology

This approach allows for efficient transmission and realistic reconstruction of non-Lambertian reflecting surfaces and virtual objects from various viewpoints, enhancing the quality of 6 DoF immersive video.

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Abstract

A bitstream, an encoder and method for encoding the bitstream, and a decoder and method for decoding the bitstream. The bitstream comprises one or more texture patches and one or more depth patches for each region in the scene that does not contain a non-Lambertian reflecting surface, one or more texture patches and one or more depth patches for any non-Lambertian reflecting surface in the scene, and at least one texture patch and at least one depth patch for each virtual object in any non-Lambertian reflecting surface. The one or more texture patches for any non-Lambertian reflecting surface and the at least one texture patch for each virtual object each comprises a color value and a density value for each pixel.
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