18526734. METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING 3D MAP simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)

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METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING 3D MAP

Organization Name

HUAWEI TECHNOLOGIES CO., LTD.

Inventor(s)

Xiaoran Cao of Hangzhou (CN)

Kangying Cai of Beijing (CN)

Pei Wang of Beijing (CN)

METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING 3D MAP - A simplified explanation of the abstract

This abstract first appeared for US patent application 18526734 titled 'METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING 3D MAP

Simplified Explanation

The patent application describes methods and apparatuses for compressing and decompressing a 3D map to reduce data volume. The process involves obtaining a 3D map descriptor, performing binarization on the descriptor, and quantization on the difference between the descriptor and preset threshold vectors to obtain quantized data.

  • Explanation of the patent/innovation:

- Obtaining a 3D map descriptor - Binarization of the relationship between the descriptor and preset threshold vectors - Quantization of the difference between the descriptor and threshold vectors to obtain quantized data

  • Potential applications of this technology:

- Efficient storage of 3D maps - Reduced transmission resources for transmitting 3D maps

  • Problems solved by this technology:

- High data volume of 3D maps - Resource-intensive transmission of 3D maps

  • Benefits of this technology:

- Reduced storage space requirements - Decreased transmission resources needed - Improved efficiency in handling 3D maps

  • Potential commercial applications of this technology:

- Navigation systems - Virtual reality applications - Gaming industry

  • Possible prior art:

- Existing methods for compressing and decompressing 3D data - Previous techniques for reducing data volume in maps

      1. Unanswered Questions:
        1. What are the specific preset threshold vectors used in the compression process?

The patent application does not provide details on the specific values or types of preset threshold vectors used in the compression process.

        1. How does the quantization process impact the quality of the decompressed 3D map?

The patent application does not elaborate on how the quantization process affects the quality or accuracy of the decompressed 3D map.


Original Abstract Submitted

Embodiments of this application belong to the field of 3D map technologies, and disclose methods and apparatuses for compressing and decompressing a 3D map, to reduce a data volume of a 3D map. The method for compressing a 3D map includes: obtaining a 3D map descriptor, where the 3D map descriptor corresponds to at least one 3D map point of the 3D map; performing binarization on a relationship between the 3D map descriptor and at least one preset threshold vector to obtain binary data; and performing quantization on a difference between the 3D map descriptor and the at least one preset threshold vector to obtain quantized data. In embodiments of this application, storage space required for storing a 3D map can be reduced, or transmission resources required for transmitting a 3D map can be reduced.

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