METHODS AND SYSTEMS BASED ON THE CHARACTERISTICS OF THE EIGHT-DIGIT TREE

VN127991APending Publication Date: 2026-08-17INTERDIGITAL VC HOLDINGS INC
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Patent Information

Application Number
VN1202603261
Authority / Receiving Office
VN · VN
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-10-10
Filing Date
2024-10-08
Publication Date
2026-08-17

AI Technical Summary

Technical Problem

Current point cloud compression techniques face challenges in efficiently representing and transmitting large volumes of 3D point cloud data, particularly in applications like autonomous driving and immersive communications, where data size and processing complexity are significant.

Method used

The proposed method incorporates an octree feature into a deep-feature based point cloud compression framework. This involves obtaining an octree feature from an octree coding process, fusing it with a feature extracted from the point cloud, and then aggregating the features using convolutional neural network (CNN) blocks and transformer processes to generate a compressed bitstream.

Benefits of technology

This approach enhances the compression efficiency by leveraging the octree feature to improve feature aggregation, resulting in a more compact representation of the point cloud data while maintaining acceptable reconstruction quality.

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Abstract

The invention relates to several possible methods of encoding, including: a step of obtaining information including a point cloud; a step of passing the point cloud through a feature extraction process to generate the first feature; a step of obtaining an octal tree feature from an octal tree encoding process; a step of generating a second feature by merging the octal tree feature with the first feature; and a step of adding the feature based on the second feature. Several possible methods of decoding, including: a step of obtaining an octal tree feature from an octal tree encoding process; a step of obtaining an input feature; a step of determining a new input feature by merging the octal tree feature with the input feature; and a step of adding the feature based on the new input feature.
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