3D Point Data Encoding in Sub-Units to Cut Output Delay

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Solution Overview

Problem

There is a demand for shortening the delay time from generation of encoded three-dimensional data until its output in encoding and decoding processes.

Innovation Solution

A three-dimensional data encoding method that encodes information about positions of three-dimensional points in smaller units than the standard encoding unit, generating encoded data items without individual additional information, and a decoding method that decodes these items without waiting for the entire unit to be collected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If encoding is performed for the entire first unit before output, then data completeness is ensured, but delay time from generation to output increases

Engineering Contradiction:

Improvedata completenessVSAvoiddelay time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent divides the first unit into multiple second units (sub-units) that can be encoded and output independently. This segmentation allows the encoding system to process and output data in smaller chunks rather than waiting for the entire first unit to be encoded, thereby reducing delay time while maintaining data completeness through proper synchronization information in each encoded data item.

Inventive Principle:

Principle #1Segmentation

2Loss of time

If encoded data items are divided into smaller units for earlier output, then delay time is reduced, but device complexity increases due to additional processing requirements

Engineering Contradiction:

Improvedelay timeVSAvoidprocessing complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent segments the encoding unit into smaller second units that can be processed independently, enabling earlier output of encoded data items. This segmentation reduces delay time by allowing incremental processing and output rather than requiring complete encoding of the entire first unit before any output occurs.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates synchronization information and unit identification data into each encoded data item in advance, during the encoding process. This preliminary action ensures that decoded data can be properly reassembled without requiring complex post-processing, thereby reducing device complexity despite the segmentation approach.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If individual additional information is included in each encoded data item, then data integrity is maintained, but data size increases

Engineering Contradiction:

Improvedata integrityVSAvoiddata size

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent applies partial action by including only essential synchronization and identification information in each encoded data item, rather than complete redundancy. This approach maintains data integrity sufficient for proper decoding and reassembly while minimizing the additional data size overhead compared to including full redundancy in every data item.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20260017830A1Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device

Publication Date: 2026.01.15 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

A three-dimensional data encoding method includes: encoding, for each of second units, information about positions of three-dimensional points included in a first unit, to generate encoded data items, the second units being smaller than the first unit that is an encoding unit; and outputting the encoded data items. Each of the encoded data items includes no individual additional information.