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 encoding method, applied in image encoding, image data processing, digital video signal modification and other directions, can solve the problem of large amount of point group data, and achieve the effect of improving encoding efficiency and reducing processing capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0195](Embodiment 1)
[0196]First, the data structure of coded three-dimensional data (hereinafter also referred to as coded data) according to this embodiment will be described.figure 1The structure of the encoded three-dimensional data according to this embodiment is shown.
[0197]In the present embodiment, the three-dimensional space is divided into a space (SPC) corresponding to a picture in encoding of a moving image, and the three-dimensional data is encoded in units of the space. The space is further divided into volumes (VLM) equivalent to macroblocks in video encoding, and prediction and conversion are performed in units of VLM. The volume includes multiple voxels (VXL), the smallest unit corresponding to the position coordinates. In addition, prediction refers to the same as the prediction in the two-dimensional image, referring to other processing units, generating predicted three-dimensional data similar to the processing unit of the processing target, and performing the differ
Example Embodiment
[0307](Embodiment 2)
[0308]When using the coded data of the point cloud in an actual device or service, it is desirable to transmit and receive necessary information according to the application in order to suppress the network bandwidth. However, there is no such function in the coding structure of 3D data so far, and therefore there is no corresponding coding method.
[0309]In this embodiment, it will be explained that a three-dimensional data encoding method and a three-dimensional data encoding device are used to provide the function of transmitting and receiving necessary information according to the application in the encoded data of the three-dimensional point cloud. A three-dimensional data decoding method and a three-dimensional data decoding device for decoding encoded data.
[0310]A voxel (VXL) having a feature amount above a certain level is defined as a feature voxel (FVXL), and a world space (WLD) composed of FVXL is defined as a sparse world space (SWLD).Picture 11A configura
Example Embodiment
[0405](Embodiment 3)
[0406]In this embodiment, a method of transmitting and receiving three-dimensional data between vehicles will be described. For example, three-dimensional data is sent and received between the own vehicle and surrounding vehicles.
[0407]Figure 24It is a block diagram of the three-dimensional data creation apparatus 620 according to this embodiment. The three-dimensional data creation device 620 is included in the own vehicle, for example, and the received second three-dimensional data 635 is combined with the first three-dimensional data 632 created by the three-dimensional data creation device 620 to create more dense third three-dimensional data 636.
[0408]The 3D data creation device 620 includes a 3D data creation unit 621, a request range determination unit 622, a search unit 623, a reception unit 624, a decoding unit 625, and a synthesis unit 626.
[0409]First, the three-dimensional data creation unit 621 creates the first three-dimensional data 632 using the senso
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap