Point Cloud Storage with Codec Type Indicators

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Solution Overview

Problem

There is a demand for reducing the processing amount or increasing the processing speed in devices that handle three-dimensional data, particularly in devices utilizing point cloud data.

Innovation Solution

A three-dimensional data storage method and device that acquire and store encoded point cloud data in a file, with control information indicating that the data is encoded point cloud data, allowing for early determination of the data type and potential reduction in processing requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If point cloud data is stored without type indication, then storage simplicity is maintained, but processing speed and efficiency deteriorate due to inability to quickly identify data type

Engineering Contradiction:

Improveprocessing speedVSAvoidstorage structure complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by adding control information (such as codec type identifiers) to the encoded point cloud data before storage. This preliminary identification marker enables processing devices to quickly determine data type without examining the entire data structure, thereby increasing processing speed while maintaining relatively simple storage architecture.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If encoded point cloud data is stored without codec information, then storage simplicity is maintained, but processing efficiency deteriorates due to inability to optimize decoding operations

Engineering Contradiction:

Improveprocessing efficiencyVSAvoidstorage metadata complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality by adding specific codec type identification information only where needed for data identification, rather than transforming the entire storage structure. This localized metadata approach enables processing devices to quickly identify data characteristics and optimize decoding operations without adding complexity throughout the entire storage system.

Inventive Principle:

Principle #3Local quality

3Speed

If control information is added to indicate encoded data type, then processing speed increases, but storage space requirements increase

Engineering Contradiction:

Improvedata identification speedVSAvoidstorage space

Core Design Contradiction:

SpeedVSQuantity of substance

Solution Approach 1:

The patent applies the extraction principle by isolating the essential identification information (codec type indicators) from the main data stream and storing it as separate control information. This allows the system to include only the necessary metadata for fast identification while keeping the bulk of the storage space available for the actual point cloud data, thereby minimizing the impact on storage capacity.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20250159256A1Three-dimensional data storage method, three-dimensional data acquisition method, three-dimensional data storage device, and three-dimensional data acquisition device

Publication Date: 2025.05.15 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

A three-dimensional data storage method includes: acquiring one or more units in which an encoded stream generated by encoding point cloud data is stored; and storing the one or more units into a file. The storing includes storing, in control information for the file, information indicating that data stored in the file is data generated by encoding the point cloud data.