18553786. METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA USING AZIMUTHAL CODING MODE simplified abstract (BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.)
Contents
METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA USING AZIMUTHAL CODING MODE
Organization Name
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Inventor(s)
Sebastien Lasserre of Beijing (CN)
METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA USING AZIMUTHAL CODING MODE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18553786 titled 'METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA USING AZIMUTHAL CODING MODE
The abstract describes a method for encoding a point cloud into a bitstream of encoded point cloud data representing a physical object. The method involves an azimuthal coding mode that provides a series of bits for encoding a coordinate of a point in the point cloud.
- Dividing a parent interval into left and right half intervals
- Interpolating angles associated with the left and right half intervals from inherited angles of the parent interval
- Selecting a context based on the interpolated angles
- Context-adaptive binary entropy encoding of a bit into the bitstream based on the selected context, indicating the half interval to which the point coordinate belongs
Potential Applications: - Data compression in point cloud processing - 3D modeling and visualization - Augmented reality applications
Problems Solved: - Efficient encoding of point cloud data - Reduction of storage space required for representing physical objects in digital form
Benefits: - Improved data compression and transmission efficiency - Enhanced accuracy in representing physical objects in digital form - Facilitates advanced 3D modeling and visualization techniques
Commercial Applications: Title: "Efficient Point Cloud Data Encoding Technology for 3D Modeling and Augmented Reality" This technology can be utilized in industries such as: - Virtual reality gaming - Architectural design and visualization - Industrial automation and robotics
Questions about the technology: 1. How does this method compare to existing point cloud encoding techniques? 2. What are the potential limitations of this encoding method in terms of scalability and complexity?
Original Abstract Submitted
A method of encoding a point cloud into a bitstream of encoded point cloud data representing a physical object is provided. The method includes an azimuthal coding mode providing a series of bits for encoding a coordinate of a point of the point cloud. The method includes: dividing a parent interval, to which the point coordinate belongs to, into a left half interval and a right half interval; interpolating a left angle (φ), associated with the left half interval, and a right angle (φ), associated with the right half interval, from at least one inherited angle associated with the parent interval; selecting a context depending on the left angle (φ) and the right angle (φ); and context-adaptive binary entropy encoding a bit (b), into the bitstream, based on the selected context, the coded bit (b) indicating which of the two half intervals the point coordinate belongs to.
