WO2017120756A1

WO2017120756A1 - Vr video data processing system

Info

Publication number: WO2017120756A1
Application number: PCT/CN2016/070649
Authority: WO
Inventors: 李刚; 龙寿伦
Original assignee: 深圳多哚新技术有限责任公司
Priority date: 2016-01-12
Filing date: 2016-01-12
Publication date: 2017-07-20

Abstract

A VR video data processing system, comprising: a video source subsystem (11) and a VR subsystem (12). A system processing chip (1) transmits system video data information to a video source conversion unit (2); the video source conversion unit (2) converts the video data information into an RGB video data signal, and sends same to a video processing unit (3); the video processing unit (3) decomposes the RGB video data signal into a two-part data frame video signal displayed on a left-eye display screen and a right-eye display screen of VR glasses, respectively packages the two-part data frame video signal and sends same to the VR subsystem (12); and a VR data parsing unit (4) receives the data frame video signal transmitted by the video processing unit (3), parses the data frame video signal so as to obtain RGB video data, and transmits same to a VR display unit (5). By means of the present invention, the work involving a great deal of heat emission is transferred to a video source end, so that a VR glasses part only serves as a display device, with as little processing work as possible, thereby reducing the heating effect of VR glasses.

Description

VR video data processing system

Technical field

The present invention relates to the field of head-mounted display devices, and more particularly to a VR video data processing system.

Background technique

VR (Virtual Reality, VR for short) display technology is developing at a high speed, and various display devices appear; users are increasingly choosing display devices, so lighter and thinner VR glasses become users' pursuit. The goal; at the same time thinner and lighter VR glasses also pose new challenges to the technology.

Due to the large number of internal components, the existing VR glasses have a large amount of heat generated inside the VR display device, and the heat inside the VR display device directly affects the user's thermal experience, affecting the comfort of the VR glasses, and the data lines are too heavy. VR glasses are too thick and have a poor experience.

Summary of the invention

In order to overcome the above deficiencies in the prior art, an object of the present invention is to provide a VR video data processing system, including: a video source subsystem and a VR subsystem;

The video source subsystem includes: a system processing chip, a video source conversion unit, and a video processing unit;

The system processing chip is configured to transmit system video data information to the video source conversion unit;

The video source conversion unit is configured to receive video data information transmitted by the system processing chip, convert the video data information into an RGB video data signal, and send the information to the video processing unit;

The video processing unit is configured to receive an RGB video data signal, and decompose the RGB video data signal into two parts of the data frame video signal displayed on the left eye display screen and the right eye display screen of the VR glasses, and the two parts of the data frame video signal Packaged and sent to the VR subsystem;

The VR subsystem includes: a VR data parsing unit and a VR display unit;

The VR data parsing unit is configured to receive a data frame video signal transmitted by the video processing unit, and parse the data frame video signal to obtain RGB video data, and transmit the RGB video data to the VR display unit;

The VR display unit is configured to display RGB video data sent by the VR data parsing unit.

Preferably, the video processing unit comprises: a video input module, a video distribution module, and a number According to the frame packing module, the GTP sending module;

The video input module is configured to receive an RGB video data signal sent by the video source conversion unit;

The video distribution module is configured to decompose the RGB video data signals into two-part data frame video signals according to the left eye display unit and the right display unit display of the VR glasses, respectively;

The data frame packing module is configured to merge two parts of the data frame video signals into parallel data, and add check bytes at the end of the parallel data, respectively packaged and input to the GTP sending module;

The GTP sending module is configured to send the data frame packed by the data frame packing module to the VR subsystem.

Preferably, the GTP sending module includes: a data sending module and a sending clock;

The data transmitting module is configured to send data in parallel under the driving of the sending clock, send bit 0 to bit 3 on the rising edge of the clock, and send bit 4 to bit 7 on the falling edge, and complete one byte of data transmission every clock cycle. .

Preferably, the data frame packing module further includes: a CRC check generating module;

The CRC check generating module is configured to generate a check byte;

The data frame sent by the GTP sending module includes: a data frame video signal and a check byte.

Preferably, the GTP sending module further includes: a sending buffer module and a sending buffer control module;

The sending buffer module is configured to match a link port with a data bit width and a rate of a data frame video signal of the video processing unit;

The transmit buffer control module is configured to control the read and write of the transmit buffer FIFO, and set the minimum unit of data transmission to 128 bits according to the link port protocol.

Preferably, the VR data parsing unit comprises: a GTP receiving module, a data frame unpacking module, and a VR video allocating module;

The GTP receiving module is configured to receive a data frame sent by the GTP sending module;

The data frame unpacking module is configured to parse the received data frame into two parts of the data frame video signal, and obtain two parts of the RGB video data from the two parts of the data frame video signal, and send the data to the VR video distribution module;

The VR video distribution module is configured to receive two parts of RGB video data, and correspondingly allocate to the VR display unit for display.

Preferably, the GTP receiving module includes: a data receiving module;

The data receiving module is configured to receive data in parallel at the same frequency as the transmission clock.

Preferably, the GTP receiving module further includes: a receiving CRC check module;

The receiving CRC check module is configured to check the check byte at the end of the parallel data. When the comparison result is the same, the currently received data is correct; otherwise, the data is incorrectly reported to the upper layer module.

Preferably, the GTP receiving module further includes: a receiving buffer module and a receiving buffer control module;

The receiving buffer module is configured to match a link port with a data bit width and a rate of a data frame video signal of the video processing unit;

The receiving buffer control module is configured to control reading and writing of the receiving buffer FIFO, and according to the link port protocol, when the data passes the verification, the receiving link port receives the data.

Preferably, the video source subsystem and the VR subsystem are connected by a differential line.

As can be seen from the above technical solutions, the present invention has the following advantages:

The video source subsystem comprises: a video source conversion unit and a video processing unit, and the VR subsystem comprises a VR data parsing unit and a VR display unit, so as to move the hot work to the video source end, so that the VR glasses part only serves as a display device. The processing work is as small as possible, which reduces the heating effect of the VR eyes. Moreover, the VR glasses end reduces the HDMI to RGB dedicated IC, can use a smaller FPGA data analysis unit, reducing the number of ICs on the glasses side, which is beneficial to make VR glasses thinner, reduce the weight of VR glasses, and reduce the VR glasses. Lines to improve user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present invention, the drawings used in the description will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, which are common to the prior art. For the personnel, other drawings can be obtained based on these drawings without paying creative labor.

1 is an overall schematic diagram of a VR video data processing system;

2 is a schematic diagram of a video processing unit;

FIG. 3 is a schematic diagram of a VR data parsing unit.

detailed description

In order to make the object, the features and the advantages of the present invention more obvious and easy to understand, the embodiments of the present invention will be clearly and completely described below using the specific embodiments and the accompanying drawings. The examples are only a part of the embodiments of the invention, but not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of this patent.

The embodiment provides a VR video data processing system, as shown in FIG. 1, comprising: a video source subsystem 11, a VR subsystem 12;

The video source subsystem 11 includes: a system processing chip 1, a video source converting unit 2, and a video processing unit 3;

The system processing chip 1 is configured to transmit system video data information to a video source conversion unit;

The video source converting unit 2 is configured to receive the video data information transmitted by the system processing chip 1, convert the video data information into an RGB video data signal, and send it to the video processing unit 3;

The video processing unit 3 is configured to receive the RGB video data signal, and decompose the RGB video data signal into two parts of the data frame video signal displayed on the left eye display screen and the right eye display screen of the VR glasses, and respectively separate the two parts of the data frame video signal. Packed and sent to the VR subsystem 12;

The VR subsystem 12 includes: a VR data parsing unit 4, a VR display unit 5;

The VR data parsing unit 4 is configured to receive the data frame video signal transmitted by the video processing unit 3, and parse the data frame video signal to obtain RGB video data, and transmit the RGB video data to the VR display unit 5; the VR display unit 5 is configured to display the VR data parsing unit 4 to send RGB video data.

The VR display unit 5 includes: a left eye display screen and a right eye display screen. The VR data parsing unit 4 receives the data frame video signal transmitted by the video processing unit 3, and parses the data frame video signal to obtain RGB video data, where the data frame video signal is parsed. The two-part data frame video signals displayed on the left-eye display and the right-eye display of the VR glasses are obtained, so that the left-eye display and the right-eye display respectively display corresponding RGB video data. The video source conversion unit converts HDMI to RGB signals. The video processing unit 3 is an FPGA video processing. The VR data analyzing unit 4 is an FPGA data analyzing unit.

Thus, the video source subsystem 11 includes a video source converting unit 2 and a video processing unit 3. The VR subsystem 12 includes a VR data analyzing unit 4 and a VR display unit 5, so as to move the hot work to the video source. The VR glasses part is only used as a display device, and the processing work is as small as possible, thereby reducing the heating effect of the VR eyes. And VR glasses end reduced HDMI to RGB dedicated IC, can use a smaller FPGA data analysis unit, reducing the number of ICs on the glasses side, which is beneficial to make VR glasses lighter and lighter and reduce the weight of VR glasses.

In this embodiment, as shown in FIG. 2, the video processing unit 3 includes: a video input module 31, a video distribution module 32, a data frame packing module 33, and a GTP sending module 34;

The video input module 31 is configured to receive the RGB video data signal sent by the video source converting unit. The video assigning module 32 is configured to decompose the RGB video data signal into two display units of the left eye display unit and the right display unit of the VR glasses. Part of the data frame video signal; the data frame packing module 33 is configured to combine the two parts of the data frame video signal into parallel data, and respectively packaged and input to the GTP sending module 34; the GTP sending module 34 is configured to generate a data frame by the data frame packing module. Sent to the VR subsystem 12.

In this embodiment, the GTP sending module 34 includes: a data sending module 35, a sending clock 36;

The data transmitting module 35 is for transmitting data in parallel under the driving of the transmission clock, transmitting bits 0 to 3 on the rising edge of the clock, and transmitting bits 4 to 7 on the falling edge, and completing one byte of data transmission every clock cycle.

The data frame packing module further includes: a CRC check generating module 37;

The CRC check generation module 37 is configured to generate a check byte. The data frame sent by the GTP sending module 34 includes: a data frame video signal and a check byte.

The GTP sending module 34 further includes: a sending buffer module 38, a sending buffer control module 39;

The transmit buffer module 38 is configured to match the link port with the data bit width and rate of the data frame video signal of the video processing unit; the transmit buffer control module 39 is configured to control the read and write of the transmit buffer FIFO, and is configured according to the link port protocol. , set the minimum unit of data transmission to 128bit.

In this embodiment, as shown in FIG. 3, the VR data parsing unit 4 includes: a GTP receiving module 41, a data frame unpacking module 46, and a VR video allocating module 47;

The GTP receiving module 41 is configured to receive a data frame sent by the GTP sending module 34.

The data frame unpacking module 46 is configured to parse the received data frame into two parts of the data frame video signal, and obtain two parts of the RGB video data from the two parts of the data frame video signal, and send the data to the VR video distribution module 47; the VR video distribution module 47 is used for receiving two parts of RGB video data, and correspondingly assigned to the VR display unit 5 for display.

The GTP receiving module 41 includes: a data receiving module 42; the data receiving module 42 is configured to pass Data is received in parallel at the same frequency as the transmit clock 36.

The GTP receiving module 41 further includes: a receiving CRC check module 43;

The receiving CRC check module 43 is configured to check the check byte at the end of the parallel data. When the comparison result is the same, the currently received data is correct; otherwise, the data is incorrectly reported to the upper layer module.

The GTP receiving module 41 further includes: a receiving buffer module 45, a receiving buffer control module 44;

The receiving buffer module 45 is configured to match the link port with the data bit width and rate of the data frame video signal of the video processing unit 3; the receive buffer control module 44 is configured to control the read buffer FIFO read and write, and according to the link port protocol When the data passes the check, the receiving link port receives the data.

Through the above transmission mode, the stability and accuracy of the data transmission between the video source subsystem and the VR subsystem are ensured, the external interference to the data transmission is reduced, the data throughput is improved, the data transmission amount is improved, and the video playback is smooth. And the video source subsystem and the VR subsystem can realize the communication connection through the differential line, making the VR glasses more convenient to use.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims

A VR video data processing system, comprising: a video source subsystem and a VR subsystem;

The video source subsystem includes: a system processing chip, a video source conversion unit, and a video processing unit;

The system processing chip is configured to transmit system video data information to the video source conversion unit;

The video source conversion unit is configured to receive video data information transmitted by the system processing chip, convert the video data information into an RGB video data signal, and send the information to the video processing unit;

The video processing unit is configured to receive an RGB video data signal, and decompose the RGB video data signal into two parts of the data frame video signal displayed on the left eye display screen and the right eye display screen of the VR glasses, and the two parts of the data frame video signal Packaged and sent to the VR subsystem;

The VR subsystem includes: a VR data parsing unit and a VR display unit;

The VR data parsing unit is configured to receive a data frame video signal transmitted by the video processing unit, and parse the data frame video signal to obtain RGB video data, and transmit the RGB video data to the VR display unit;

The VR display unit is configured to display RGB video data sent by the VR data parsing unit.
The VR video data processing system of claim 1 wherein:

The video processing unit includes: a video input module, a video distribution module, a data frame packing module, and a GTP sending module;

The video input module is configured to receive an RGB video data signal sent by the video source conversion unit;

The video distribution module is configured to decompose the RGB video data signals into two-part data frame video signals according to the left eye display unit and the right display unit display of the VR glasses, respectively;

The data frame packing module is configured to merge two parts of the data frame video signals into parallel data, and add check bytes at the end of the parallel data, respectively packaged and input to the GTP sending module;

The GTP sending module is configured to send the data frame packed by the data frame packing module to the VR subsystem.
The VR video data processing system according to claim 2, wherein

The GTP sending module includes: a data sending module and a sending clock;

The data transmitting module is configured to send data in parallel under the driving of the sending clock, send bit 0 to bit 3 on the rising edge of the clock, and send bit 4 to bit 7 on the falling edge, and complete one byte of data transmission every clock cycle. .
A VR video data processing system according to claim 3, wherein

The data frame packing module further includes: a CRC check generating module;

The CRC check generating module is configured to generate a check byte;

The data frame sent by the GTP sending module includes: a data frame video signal and a check byte.
A VR video data processing system according to claim 4, wherein

The GTP sending module further includes: a sending buffer module and a sending buffer control module;

The sending buffer module is configured to match a link port with a data bit width and a rate of a data frame video signal of the video processing unit;

The transmit buffer control module is configured to control the read and write of the transmit buffer FIFO, and set the minimum unit of data transmission to 128 bits according to the link port protocol.
A VR video data processing system according to claim 5, wherein

The VR data parsing unit includes: a GTP receiving module, a data frame unpacking module, and a VR video allocation module;

The GTP receiving module is configured to receive a data frame sent by the GTP sending module;

The data frame unpacking module is configured to parse the received data frame into two parts of the data frame video signal, and obtain two parts of the RGB video data from the two parts of the data frame video signal, and send the data to the VR video distribution module;

The VR video distribution module is configured to receive two parts of RGB video data, and correspondingly allocate to the VR display unit for display.
The VR video data processing system of claim 6 wherein:

The GTP receiving module includes: a data receiving module;

The data receiving module is configured to receive data in parallel at the same frequency as the transmission clock.
The VR video data processing system of claim 7 wherein:

The GTP receiving module further includes: receiving a CRC check module;

The receiving CRC check module is configured to check the check byte at the end of the parallel data. When the comparison result is the same, the currently received data is correct; if the data is incorrect, the module reports to the upper layer module.
A VR video data processing system according to claim 8 wherein:

The GTP receiving module further includes: a receiving buffer module and a receiving buffer control module;

The receiving buffer module is configured to match a link port with a data bit width and a rate of a data frame video signal of the video processing unit;

The receiving buffer control module is configured to control reading and writing of the receiving buffer FIFO, and according to the link port protocol, when the data passes the verification, the receiving link port receives the data.
The VR video data processing system of claim 1 wherein:

The video source subsystem and the VR subsystem are connected by a differential line.