WO2021212356A1 - 定位数据处理方法、电子设备及存储介质 - Google Patents
定位数据处理方法、电子设备及存储介质 Download PDFInfo
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- WO2021212356A1 WO2021212356A1 PCT/CN2020/086061 CN2020086061W WO2021212356A1 WO 2021212356 A1 WO2021212356 A1 WO 2021212356A1 CN 2020086061 W CN2020086061 W CN 2020086061W WO 2021212356 A1 WO2021212356 A1 WO 2021212356A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
Definitions
- the present disclosure relates to virtual reality technology, and in particular to a positioning data processing method of a virtual reality device, an electronic device, and a storage medium.
- Virtual reality technology (Virtual Reality, VR) is a computer simulation system that can create and experience a virtual world. It uses a computer to generate a simulation environment to immerse users in the environment.
- the embodiments of the present disclosure provide a positioning data processing solution for a virtual reality VR device, which can significantly reduce the amount of transmitted data.
- One aspect of the present disclosure provides a method for processing positioning data of a virtual reality VR device, including:
- the VR client obtains several frames of positioning data of at least one virtual reality device
- the VR client compresses the several frames of positioning data
- the VR client transmits at least part of the several frames of positioning data after the compression processing to an external device.
- the compressing the several frames of positioning data includes:
- the transmitting at least part of the plurality of frames of positioning data after the compression processing includes: sending at least part of the reference frame and the difference data.
- the obtaining the difference data corresponding to each of at least some of the frames of positioning data includes:
- the reference frame is the first frame, the last frame, or other frames between the first frame and the last frame in the several frames of positioning data.
- the compressing the several frames of positioning data further includes:
- De-sign processing is performed on the several frames of positioning data.
- performing compression processing on the several frames of positioning data includes:
- Lossless compression processing is performed on the several frames of positioning data.
- the obtaining several frames of positioning data of at least one virtual reality device includes: obtaining several frames of positioning data of each of a plurality of virtual reality devices;
- the compressing processing of the several frames of positioning data includes: compressing each of the several frames of positioning data of the plurality of virtual reality devices.
- the several frames of positioning data are consecutive frames of positioning data, or several discontinuous frames of positioning data.
- the method further includes: another VR client synchronizing the corresponding user's avatar in the constructed multi-user shared VR environment according to the data transmitted by the VR client to the external device.
- an electronic device including:
- the memory has executable code stored thereon, and when the executable code is executed by the processor, the processor is caused to execute the method as described above.
- the electronic device is an all-in-one VR machine or a smart terminal device.
- Another aspect of the present disclosure provides a non-transitory machine-readable storage medium having executable code stored thereon, and when the executable code is executed by a processor of an electronic device, the processor is caused to execute the above-mentioned method.
- the amount of transmitted data can be reduced, the occupation of network resources can be reduced, and the impact on the VR system can be reduced when the network performance is poor, and the impact can be avoided. user experience.
- the difference data is used to replace the complete data of each frame.
- the VR data refresh rate is usually set to be higher, so the difference between adjacent frames is small, that is, the difference corresponding to each frame
- the data is relatively small, which can significantly reduce the amount of data.
- the difference data is further compressed by performing de-duplication processing on the difference data, preserving n-digit processing after the decimal point, de-decimal point processing, and de-sign processing to further reduce the data volume.
- the amount of data obtained after compression using the scheme of this embodiment is at least less than one-third of the original data amount, and there is basically no loss of accuracy.
- Fig. 1 shows an exemplary architecture of a virtual reality system according to an embodiment of the present disclosure
- FIG. 2 is a schematic flowchart of an embodiment of a positioning data processing method of a virtual reality device of the present disclosure
- FIG. 3 is a flowchart of another embodiment of a positioning data processing method of a virtual reality device of the present disclosure
- Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
- first, second, third, etc. may be used in this disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
- first information may also be referred to as second information, and similarly, the second information may also be referred to as first information.
- second information may also be referred to as first information.
- features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
- “plurality” means two or more than two, unless otherwise specifically defined.
- FIG. 1 shows an exemplary architecture of a virtual reality system according to an embodiment of the present disclosure.
- the VR system shown in FIG. 1 includes a server 100 and multiple client systems 200, and the client system 200 includes a VR client 210 and a VR device 220.
- the server 100 and the VR client 210 may be applied to the device in the form of software.
- the server 100 may be deployed on an independent service device, or may be deployed on a cluster service device composed of multiple independent service devices.
- the VR client 210 is deployed on a user terminal that supports VR technology.
- the VR client 210 can be independent software, or can be used as a subsystem or component of a large-scale system.
- the server 100 may provide a multi-user shared VR environment platform, and provide background services for each VR client 210.
- the VR client 210 can construct a multi-user shared VR environment, and users of the VR client 210 have their own user stand-ins in the multi-user shared VR environment and enjoy an immersive VR experience.
- the server 100 and the VR client 210 of each client system 200 are connected through a network.
- the network can be a wired or wireless network such as the Internet, Global System of Mobile communication (GSM), Wideband Code Division Multiple Access (WCDMA), 4G, 5G, Bluetooth, Wi-Fi, etc. It can be understood that the VR client 210 of each client system 200 may also be connected point-to-point.
- the VR device 220 includes, for example, a wearable VR device 220 that can be directly worn on the user's body (such as VR helmets, VR glasses and other head-mounted devices, and VR gloves, VR handles, VR bracelets, etc.), and can be integrated into the user's clothes A combination of one or more of the equipment with user space positioning, somatosensory tracking function, VR all-in-one machine and other equipment of the accessory.
- a wearable VR device 220 that can be directly worn on the user's body (such as VR helmets, VR glasses and other head-mounted devices, and VR gloves, VR handles, VR bracelets, etc.), and can be integrated into the user's clothes
- a wearable VR device 220 that can be directly worn on the user's body (such as VR helmets, VR glasses and other head-mounted devices, and VR gloves, VR handles, VR bracelets, etc.), and can be integrated into the user's clothes
- a user terminal that supports VR technology can, for example, support a combination of one or more of the smart terminal devices (smartphones, tablet computers, notebook computers, desktop computers, in-vehicle terminals, etc.) that communicate with the VR device 220, the above-mentioned all-in-one VR devices, etc. .
- the smart terminal devices smart terminal devices
- the VR device 220 the above-mentioned all-in-one VR devices, etc.
- the VR client 210 can obtain real-time positioning data from the corresponding VR device, and continuously synchronize the positioning data of the VR device with the system, so that the server and other VR clients can determine each of the same VR scenes.
- the first user's VR client also called the first VR client
- the second user's VR client also called the second VR client
- the synchronization of the avatar of the first user will be described as an example.
- FIG. 2 is a schematic flowchart of an embodiment of a method for processing positioning data of a virtual reality device of the present disclosure.
- the method in this embodiment may include:
- the first VR client obtains several frames of positioning data of at least one VR device of the first user.
- the positioning data includes three-dimensional data, such as 6-degree-of-freedom pose data, that is, the freedom of movement along the directions of the three rectangular coordinate axes of x, y, and z and the freedom of rotation around these three coordinate axes. It is understandable that the positioning data may also only include part of the above 6-degree-of-freedom pose data.
- the first user is configured with a multipoint VR device.
- the first user's head is equipped with a VR all-in-one machine
- the two hands are respectively equipped with a VR handle
- the VR client is arranged in the VR all-in-one machine.
- the first VR client can transmit several frames of positioning data of each of the three VR devices to the system at a preset synchronization frequency.
- the synchronization frequency is set to 1 second
- the VR data refresh rate is 60 frames. Every second, the first VR client synchronizes to the system every 1 second, that is, transmits to the system 60 frames of positioning data of each of the three VR devices within 1 second.
- the synchronization frequency and the VR data refresh rate can be set according to actual needs.
- the first user can also only be configured with a single VR device, and the first VR client will set the synchronization frequency at a preset synchronization frequency.
- Several frames of positioning data of the VR device are transmitted to the system; or, in some embodiments, the first user may be configured with multiple VR devices, and the first VR client may configure the multiple VR devices according to preset synchronization rules.
- Several frames of positioning data are not completely transmitted to the system at the same time.
- the first VR client transmits positioning data to the system, either by transmitting the positioning data to the server, or by transmitting the positioning data to another target VR client (for example, the second VR client) End), or both to the server and to another target VR client.
- another target VR client for example, the second VR client
- the several frames of positioning data transmitted by the first VR client to the system may be consecutive frames of positioning data, or may also be several discontinuous frames of positioning data after frame sampling.
- the first VR client performs compression processing on several frames of positioning data of at least one VR device.
- the first VR client may perform lossy compression processing on the several frames of positioning data; alternatively, it may also perform lossless compression processing on the several frames of positioning data.
- the first VR client may obtain partial data in several frames of positioning data after compression processing.
- the number of frames of data obtained after compressing N frames of positioning data is less than N; or After a VR client performs compression processing, it can also obtain all data in several frames of positioning data, that is, the number of frames of data obtained after compressing N frames of positioning data is still equal to N.
- the first VR client in the case of obtaining several frames of positioning data for each of multiple VR devices, can first perform a separate operation on several frames of positioning data for each VR device. Combine after compression processing; it is understandable that the compression processing for several frames of positioning data of each VR device can be the same processing or different processing.
- the first VR client may first combine several frames of positioning data of each VR device before performing compression processing.
- the first VR client transmits the compressed positioning data to the external device.
- the external device may be a server device and/or a user terminal on which a second VR client is deployed.
- the compressed positioning data transmitted by the first VR client to the external device may be the positioning data itself obtained after the compression processing, or it may be obtained after predetermined post-processing of the positioning data obtained after the compression processing. Positioning data.
- the second VR client obtains decompressed data obtained based on the compressed positioning data.
- the second VR client may receive the compressed positioning data from an external device (for example, the first VR client or server device), and decompress the received data corresponding to the compression processing. Obtain decompressed data after processing;
- the second VR client directly receives data that has been decompressed from an external device (for example, a server).
- an external device for example, a server
- the second VR client may also receive compressed data from an external device after performing intermediate processing on the compressed positioning data sent by the first VR client, and then Decompress the received compressed data to obtain decompressed data.
- the second VR client synchronizes the avatar of the first user in the constructed multi-user shared VR environment according to the obtained decompressed data.
- the second VR client After obtaining the multi-frame positioning data of the VR device of the first user, the second VR client refreshes the pose and movement track of the avatar of the first user in the constructed multi-user shared VR environment.
- the amount of transmitted data can be reduced, the occupation of network resources can be reduced, and the impact on the VR system can be reduced when the network performance is poor, and the user experience can be avoided .
- the first VR client may first obtain all 60 frames of positioning data of the VR device and then perform compression processing, or it may obtain 60 frames of positioning data of the VR device multiple times, and obtain the data first after each acquisition. The data is compressed.
- the first VR client is used to share the positioning data of the first user with the system, so that the second VR client can be used in the constructed multiple
- the synchronization of the avatar of the first user is described as an example.
- the first VR client processes N frames of positioning data of a VR device of the first user as an example for description.
- the first VR client performs the following processing:
- each frame of data is separated by a predetermined interval character (for example, a comma).
- a predetermined interval character for example, a comma.
- the above-mentioned adding a null value to the data to be synchronized S can be directly adding an interval at the end of the data to be synchronized S In this way, two consecutive interval symbols indicate that the data between the two is null. In this embodiment, it indicates that the positioning data of the i-th frame is exactly the same as the positioning data of the i-1th frame.
- Processing the difference data Ei as data with n digits after the decimal point can be, for example, directly intercepting the data n+1 digits before the decimal point from the difference data Ei.
- processing the difference data Ei as data with n digits after the decimal point may be rounding the n+1 digits after the decimal point of the difference data Ei, and then intercepting n+1 after the decimal point.
- the data before the bit It can be understood that the present disclosure is not limited to this.
- n is equal to 3, that is, data with 3 digits after the decimal point is retained, which usually can guarantee a sufficiently high data accuracy.
- Processing the difference data Ei as data that does not include a decimal point can be obtained by, for example, multiplying the difference data Ei by 10 to the power of n. It can be understood that the present disclosure is not limited to this.
- Processing the difference data Ei as data that does not include a positive/negative sign can be obtained by replacing the positive/negative signs of the difference data Ei with different identifiers, for example, the positive sign can be replaced by 1 and the negative sign can be replaced by 0. It can be understood that the present disclosure is not limited to this.
- the second VR client decompresses the data S according to the decompression method corresponding to the compression method used by the first VR client to obtain decompressed data, and According to the obtained decompressed data, the avatar of the first user is synchronized in the constructed multi-user shared VR environment.
- the difference data is used to replace the complete data of each frame.
- the VR data refresh rate is usually set higher (the industry generally believes that the data refresh rate is not less than 60 frames per second to ensure a better display Effect), therefore, the difference between adjacent frames is small, that is, the difference data corresponding to each frame is relatively small, and the amount of data can be significantly reduced; and in this embodiment, the difference data is deduplicated (S35 ), n-digit processing after the decimal point (S36), de-decimal point processing (S37), and de-sign processing (S38). The difference data is further compressed, which can further reduce the amount of data. After testing, the amount of data obtained after compression using the scheme of this embodiment is at least less than one-third of the original data amount, and there is basically no loss of accuracy.
- the symbols in the methods of the above embodiments do not constitute a restriction on the order.
- the de-duplication processing, the processing of retaining the n digits after the decimal point, the processing of decimal points, and the processing of symbols can be used as needed in different embodiments. Choose or combine, or execute in a different order.
- the first frame positioning data is used as the reference frame. It can be understood that in other embodiments, the reference frame may also be the last frame or other frames between the first frame and the last frame.
- the difference data of each frame data may be obtained in other ways.
- the difference data may be the difference data between the complete data of the corresponding frame and the reference frame, or, It is the difference data with other adjacent frames that are relatively close (for example, adjacent frames with an interval of 2, 3 frames).
- Fig. 5 is a schematic structural diagram of an electronic device 500 according to an exemplary embodiment of the present disclosure.
- the electronic device 500 includes a memory 510 and a processor 520.
- the processor 520 may be a central processing unit (Central Processing Unit, CPU), other general-purpose processors, digital signal processors (Digital Signal Processors, DSPs), application specific integrated circuits (ASICs), on-site Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the memory 510 may include various types of storage units, such as a system memory, a read only memory (ROM), and a permanent storage device.
- the ROM may store static data or instructions required by the processor 520 or other modules of the computer.
- the permanent storage device may be a readable and writable storage device.
- the permanent storage device may be a non-volatile storage device that does not lose stored instructions and data even after the computer is powered off.
- the permanent storage device adopts a large-capacity storage device (such as a magnetic or optical disk, flash memory) as the permanent storage device.
- the permanent storage device may be a removable storage device (for example, a floppy disk, an optical drive).
- the system memory can be a readable and writable storage device or a volatile readable and writable storage device, such as dynamic random access memory.
- the system memory can store some or all of the instructions and data needed by the processor at runtime.
- the memory 510 may include any combination of computer-readable storage media, including various types of semiconductor memory chips (DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), and magnetic disks and/or optical disks may also be used.
- the memory 510 may include a removable storage device that can be read and/or written, such as a compact disc (CD), a read-only digital versatile disc (for example, DVD-ROM, dual-layer DVD-ROM), Read-only Blu-ray discs, ultra-density discs, flash memory cards (such as SD cards, min SD cards, Micro-SD cards, etc.), magnetic floppy disks, etc.
- a removable storage device that can be read and/or written, such as a compact disc (CD), a read-only digital versatile disc (for example, DVD-ROM, dual-layer DVD-ROM), Read-only Blu-ray discs, ultra-density discs, flash memory cards (such as SD cards, min SD cards, Micro-SD cards, etc.), magnetic floppy disks, etc.
- the computer-readable storage medium does not include carrier waves and instantaneous electronic signals transmitted wirelessly or wiredly.
- the memory 510 stores executable code, and when the executable code is processed by the processor 520, the processor 520 can execute part or all of the above-mentioned methods.
- the method according to the present disclosure can also be implemented as a computer program or computer program product, and the computer program or computer program product includes computer program code instructions for executing part or all of the steps in the above-mentioned method of the present disclosure.
- the present disclosure can also be implemented as a non-transitory machine-readable storage medium (or computer-readable storage medium, or machine-readable storage medium) on which executable code (or computer program, or computer instruction code) is stored ), when the executable code (or computer program, or computer instruction code) is executed by a processor of an electronic device (such as a computing device, a server, etc.), the processor is caused to execute each step of the above-mentioned method according to the present disclosure Part or all of.
- a processor of an electronic device such as a computing device, a server, etc.
- each block in the flowchart or block diagram may represent a module, program segment, or part of the code, and the module, program segment, or part of the code contains one or more functions for realizing the specified logical function.
- Executable instructions may also occur in a different order than marked in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, or they can sometimes be executed in the reverse order, depending on the functions involved.
- each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart can be implemented by a dedicated hardware-based system that performs the specified functions or operations Or it can be realized by a combination of dedicated hardware and computer instructions.
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Claims (15)
- 一种虚拟现实VR设备的定位数据处理方法,其特征在于,包括:VR客户端获得至少一个虚拟现实设备的若干帧定位数据;所述VR客户端对所述若干帧定位数据进行压缩处理;所述VR客户端向外部设备传输经所述压缩处理后的所述若干帧定位数据中的至少部分。
- 如权利要求1所述的方法,其特征在于,所述对所述若干帧定位数据进行压缩处理包括:在所述若干帧定位数据中确定基准帧;获得所述若干帧定位数据中的至少部分帧各自对应的差值数据。
- 如权利要求1所述的方法,其特征在于,所述传输经所述压缩处理后的所述若干帧定位数据中的至少部分包括:发送所述基准帧、及所述差值数据中的至少部分。
- 如权利要求2所述的方法,其特征在于,所述获得所述若干帧定位数据中的至少部分帧各自对应的差值数据包括:获得所述若干帧定位数据中的至少部分帧各自与邻近帧之间的差值数据;或者,获得所述若干帧定位数据中的至少部分帧各自与所述基准帧之间的差值数据。
- 如权利要求2所述的方法,其特征在于,所述基准帧为所述若干帧定位数据中的首帧、或末帧、或首帧与末帧之间的其他帧。
- 如权利要求2所述的方法,其特征在于,所述对所述若干帧定位数据进行压缩处理还包括:对所述若干帧定位数据进行保留小数点处理,从而获得保留小数点后指定位数的定位数据;和/或,对所述若干帧定位数据进行去小数点处理;和/或,对所述若干帧定位数据进行去重处理;和/或,对所述若干帧定位数据进行去符号处理。
- 如权利要求1所述的方法,其特征在于,对所述若干帧定位数据进行压缩处理包括:对所述若干帧定位数据进行有损压缩处理。
- 如权利要求1所述的方法,其特征在于,对所述若干帧定位数据进行压缩处理包括:对所述若干帧定位数据进行无损压缩处理。
- 如权利要求1至8任一项所述的方法,其特征在于,所述获得至少一个虚拟现实设备的若干帧定位数据包括:获得多个虚拟现实设备各自的若干帧定位数据;对所述若干帧定位数据进行压缩处理包括:分别对所述多个虚拟现实设备各自的若干帧定位数据进行压缩处理。
- 如权利要求1至8任一项所述的方法,其特征在于,所述若干帧定位数据为连续的若干帧定位数据。
- 如权利要求1至8任一项所述的方法,其特征在于,所述若干帧定位数据为不连续的若干帧定位数据。
- 如权利要求1至8任一项所述的方法,其特征在于,还包括:另一VR客户端依据所述VR客户端向外部设备传输的数据,在构建的多用户共享VR环境中对相应用户的替身进行同步。
- 一种电子设备,其特征在于,包括:处理器;以及存储器,其上存储有可执行代码,当所述可执行代码被所述处理器执行时,使所述处理器执行如权利要求1至11中任一项所述的方法。
- 如权利要求13所述的电子设备,其特征在于,所述电子设备为VR一体机或智能终端设备。
- 一种非暂时性机器可读存储介质,其上存储有可执行代码,当所述可执行代码被电子设备的处理器执行时,使所述处理器执行如权利要求1-11中任一项所述的方法。
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CN109766006A (zh) * | 2019-01-02 | 2019-05-17 | 京东方科技集团股份有限公司 | 虚拟现实场景的显示方法、装置及设备 |
CN110830521A (zh) * | 2020-01-13 | 2020-02-21 | 南昌市小核桃科技有限公司 | Vr多人同屏数据同步处理方法及装置 |
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CN107241563B (zh) * | 2017-06-16 | 2020-01-07 | 深圳市玩视科技有限公司 | 视频传输的方法、智能移动终端及具有存储功能的装置 |
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CN106993181A (zh) * | 2016-11-02 | 2017-07-28 | 大辅科技(北京)有限公司 | 多vr/ar设备协同系统及协同方法 |
US20200098187A1 (en) * | 2018-09-21 | 2020-03-26 | New York University | Shared Room Scale Virtual and Mixed Reality Storytelling for a Multi-Person Audience That May be Physically Co-Located |
CN109766006A (zh) * | 2019-01-02 | 2019-05-17 | 京东方科技集团股份有限公司 | 虚拟现实场景的显示方法、装置及设备 |
CN110830521A (zh) * | 2020-01-13 | 2020-02-21 | 南昌市小核桃科技有限公司 | Vr多人同屏数据同步处理方法及装置 |
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