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

A technology of three-dimensional data and coding method, which is applied in image coding, image data processing, digital video signal modification, etc., and can solve the problem of large amount of point group data.

Pending Publication Date: 2021-12-10
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Application Information

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Problems solved by technology

Although it is expected that point cloud will become the mainstream as a representation method of 3D data, the data volume of point group is very large

Method used

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  • Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device
  • Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device
  • Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device

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Embodiment approach 1

[0102] First, the configuration of the three-dimensional data (point cloud data) codec system of this embodiment will be described. figure 1 It is a diagram showing a configuration example of a three-dimensional data encoding / decoding system according to the present embodiment. Such as figure 1 As shown, the 3D data encoding and decoding system includes a 3D data encoding system 4601 , a 3D data decoding system 4602 , a sensor terminal 4603 and an external connection unit 4604 .

[0103] The three-dimensional data encoding system 4601 generates encoded data or multiplexed data by encoding point cloud data as three-dimensional data. In addition, the three-dimensional data coding system 4601 may be a three-dimensional data coding device realized by a single device, or may be a system realized by a plurality of devices. In addition, the three-dimensional data encoding device may be included in some of the plurality of processing units included in the three-dimensional data enco...

Embodiment approach 2

[0303] First, generation and synthesis of point cloud data will be described. Figure 35It is a diagram showing a configuration example of a three-dimensional data encoding device (three-dimensional data multiplexing device) as an example of a system for processing a plurality of sensor signals. The three-dimensional data encoding device has sensing units 8601A, 8601B, and 8601C, input and output units 8602A, 8602B, and 8602C, point cloud data generation unit 8603 , encoding unit 8604 , synchronization unit 8605 , and multiplexing unit 8606 .

[0304] The input / output unit 8602A acquires the first sensor signal generated by the sensing by the sensing unit 8601A. The input / output unit 8602B acquires the second sensor signal generated by the sensing by the sensing unit 8601B. The input / output unit 8602C acquires the third sensor signal generated by the sensing by the sensing unit 8601C. In addition, the input / output units 8602A, 8602B, and 8602C may have memories for accumulat...

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Abstract

This three-dimensional data encoding method: generates encoded data by encoding point group data (S8641); and generates a bit stream including the encoded data (S8642). The bit stream includes first information indicating sensors corresponding to the point group data. For example, the first information may be generated for each of a plurality of three-dimensional points included in the point group data, and may contain second information indicating sensors corresponding to the corresponding three-dimensional points. For example, the point group data may include position information and one or more pieces of attribute information for each of the plurality of three-dimensional points, and the second information may be included in the encoded data as one of the one or more pieces of attribute information.

Description

technical field [0001] The invention relates to a three-dimensional data encoding method, a three-dimensional data decoding method, a three-dimensional data encoding device and a three-dimensional data decoding device. Background technique [0002] Devices and services that make full use of 3D data will become popular in the future in large fields such as computer vision, map information, surveillance, infrastructure inspection, and image distribution for autonomous operations of cars and robots. The three-dimensional data is obtained by various methods such as a distance sensor such as a range finder, a stereo camera, or a combination of multiple monocular cameras. [0003] As one of the representation methods of three-dimensional data, there is a representation method called a point cloud, which represents the shape of a three-dimensional structure through a point group in a three-dimensional space. Save the position and color of the point cloud in the point cloud. Altho...

Claims

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Application Information

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IPC IPC(8): H04N19/597H04N19/70G06T9/00
CPCG06T9/00H04N19/597H04N19/46
Inventor 井口贺敬杉尾敏康
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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