CN106951370B - Evaluation method and device for virtual reality equipment program running delay - Google Patents
Evaluation method and device for virtual reality equipment program running delay Download PDFInfo
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Abstract
The embodiment of the invention discloses an evaluation method for program running delay of virtual reality equipment, which is applied to the technical field of virtual reality and comprises the following steps: before the VR device to be tested runs a preset program, inputting a first test image to the VR device to be tested, inputting a second test image to the VR device to be tested after the preset program is run, acquiring optical signals corresponding to the first test image and the second test image output by a screen of the VR device to be tested, processing the optical signals into electric signals, analyzing the electric signals to obtain a time interval between the first test image and the second test image output from the screen, taking the time interval as the duration of the VR device to be tested running the preset program, and obtaining a delay evaluation result of the running of the preset program according to the duration of the preset program. The embodiment of the invention also discloses an evaluation device for the virtual reality equipment program running delay, which can improve the accuracy of evaluating the delay of the VR equipment running program.
Description
Technical Field
The invention belongs to the technical field of terminals, and particularly relates to a method and a device for evaluating running delay of a virtual reality device program of a virtual reality device.
Background
Virtual Reality (VR) technology, a computer simulation system that can create and experience a Virtual world, is called a next generation general computing platform, but there are many problems to be solved by VR technology. Multiple types of software can be operated in VR equipment, when the software is written, the software with the same purpose has multiple types, different software can generate different time delays when being operated on different operation platforms, and the software suitable for the current operation platform is difficult to determine.
In the prior art, original delay parameters provided by suppliers of devices of VR equipment are generally used, however, after the VR equipment is produced, response delay factors caused by the devices affect each other, and the delay of the program operation capability of the VR equipment cannot be effectively evaluated according to the parameters provided by operators of the devices, so that software suitable for the current VR equipment cannot be determined.
Disclosure of Invention
The invention provides a method and a device for evaluating the running delay of a virtual reality device program, and aims to solve the problem that the delay of the program running on VR equipment cannot be accurately evaluated.
The first aspect of the embodiments of the present invention provides a method for evaluating virtual reality device program running delay, including:
before the VR equipment to be tested runs a preset program, inputting a first test image to the VR equipment to be tested;
controlling the to-be-tested VR equipment to run the preset program, and inputting a second test image to the to-be-tested VR equipment after the preset program is run;
acquiring optical signals corresponding to the first test image and the second test image output by a screen of the VR equipment to be tested;
processing the optical signal into an electrical signal, and analyzing the electrical signal to obtain a time interval between the first test image and the second test image output from the screen;
and taking the time interval as the time length of the to-be-measured VR device to run the preset program, and obtaining the delayed evaluation result of the to-be-measured VR device to run the preset program according to the time length of the to-be-measured VR device to run the preset program obtained by each measurement.
A second aspect of the embodiments of the present invention provides an evaluation apparatus for virtual reality device program running delay, including:
the system comprises a terminal, a photoelectric conversion module, a circuit modulation module and a main control unit;
the terminal is connected with the VR equipment to be tested and used for inputting a first test image and a second test image to the VR equipment to be tested before the VR equipment to be tested runs a preset program;
the terminal controls the VR equipment to be tested to run the preset program, and after the preset program is run, a second test image is input to the VR equipment to be tested;
the photoelectric conversion module is connected with a screen of the VR equipment to be tested and used for acquiring the first test image output by the screen of the VR equipment to be tested and the optical signal corresponding to the second test image;
the photoelectric conversion module is connected with the circuit modulation module and is used for processing the optical signal into an electric signal;
the main control unit is respectively connected with the circuit modulation module and the terminal and is used for acquiring the electric signal from the circuit modulation module and sending the electric signal to the terminal;
the terminal is used for analyzing the electric signal to obtain a time interval of the first test image and the second test image output from the screen, taking the time interval as the time length of the to-be-tested VR device to run the preset program, and obtaining a delayed evaluation result of the to-be-tested VR device to run the preset program according to the time length of the to-be-tested VR device to run the preset program obtained by each measurement.
From the above embodiments of the present invention, it can be known that, in the method and the apparatus for evaluating the virtual reality device program running delay provided by the present invention, by inputting a first test image to the VR device to be tested before running a preset program and inputting a second test image to the VR device to be tested after running the preset program, processing the signals of the first test image and the second test image acquired from the screen of the VR equipment to be tested to obtain the time interval of the first test image and the second test image output from the screen, taking the time interval as the time length of the VR equipment to be tested for running the preset program, and obtaining a delayed evaluation result of the VR equipment to be tested running the preset program according to the duration of the VR equipment to be tested running the preset program obtained by each measurement, therefore, the delay of different running programs of the VR equipment is objectively evaluated, and the accuracy of the most suitable program in the VR equipment to be tested is confirmed.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural diagram of an evaluation device for measuring a virtual reality device program running delay according to a first embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an implementation of the method for evaluating the virtual reality device program running delay according to the second embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
When using VR devices, VR devices need to run programs (software) based on the same purpose but implemented using different algorithms, and even if the same algorithm has different delays on different running platforms, so an evaluation method is needed to objectively evaluate the delays of different programs based on the same purpose or the same program running on different platforms (VR devices) and determine the program most suitable for the current VR device to run, that is, the program with the shortest delay generated when running in the current VR device.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an evaluation device for virtual reality device program running delay according to a first embodiment of the present invention, where the device can be used to test the delay performance of a VR device when running a program.
This evaluation device includes: the terminal 10, the photoelectric conversion module 20, the circuit modulation module 30, the optical fiber 40 and the main control unit 50.
The terminal 10 is connected to the VR device 60 to be tested, and the terminal 10 may input a preset test program into the VR device 60 to be tested, and control the preset program to run, where the program may be an algorithm program or an application program. Before the preset program is run, a first test image for testing is input to the VR device to be tested 60.
Further, the terminal 10 controls the to-be-tested VR device 60 to run the preset program, and inputs the second test image to the to-be-tested VR device 60 after the preset program is run.
It should be noted that the testing process of this embodiment may be performed when the VR device to be tested 60 can normally work, and the VR device to be tested 60 can normally play a video currently, where the first test image and the second test image are video frames different from the normal play, for example, the first test image and the second test image may be a full white image and a full black image, respectively, or the first test image and the second test image may be a full black image and a full white image, respectively, or the first test image and the second test image are other images having obvious differences from the video frames, so that the testing can be completed smoothly.
The photoelectric conversion module 20 is connected to the screen of the VR device to be tested 60 through the optical fiber 40, and is configured to obtain the optical signal corresponding to the first test image and the second test image output by the screen of the VR device to be tested 60.
One end of the optical fiber 40 is connected to the screen of the VR device 60 to be tested, the optical fiber 40 may be a single mode optical fiber or a multimode optical fiber, and when the optical fiber 40 is a single mode optical fiber, an optical signal of one of the screens of the VR device 60 to be tested may be acquired. The other end of the optical fiber 40 is connected to the photoelectric conversion module 20, and the photoelectric conversion module 20 may be a photodiode, a phototriode, an avalanche photodiode, a photomultiplier, or other devices capable of converting an optical signal into a current or voltage signal.
Further, in order to ensure that the incident light at the incident end of the optical fiber 40 is only the optical signal of the VR device 60 to be tested and is not interfered by the ambient light, and the other end of the optical fiber 40 outputs the optical signal to the photoelectric conversion module 20, and the optical signal entering the photoelectric conversion module 20 is also not interfered by the ambient light, a light shielding device may be disposed outside the whole evaluation apparatus to shield the ambient light, and the light shielding device may also be disposed outside the VR device 60 to be tested, the optical fiber 40 and the photoelectric conversion module 20.
The circuit modulation module 30 is a modulation circuit, and is configured to modulate the current signal, including converting the current signal into a voltage signal, and amplifying, filtering, debouncing, and denoising the tiny voltage signal.
Further, the photoelectric conversion module 20 acquires the optical signals of the first test image and the second test image output by the screen of the VR device to be tested 60. The photoelectric conversion module 20 and the circuit modulation module 30 process the optical signal into an electrical signal.
Specifically, the optical-to-electrical conversion module 20 converts the optical signal into a current or voltage signal, in this embodiment, the optical signal is converted into a current signal, the converted current signal is output to the circuit modulation module 30, and the circuit modulation module 30 modulates the current signal, where the modulation includes converting the current signal into a voltage signal, amplifying the voltage signal, and filtering the amplified voltage signal.
Further, the main control unit 50 is respectively connected to the circuit modulating module 30 and the terminal 10, and the main control unit 50 is specifically connected to the terminal 10 by means of a USB cable. The main control unit 50 acquires the electrical signal and transmits the electrical signal to the terminal 10. Specifically, the main control unit 50 collects the modulated current signal through an analog-to-digital conversion device (ADC), and stores, analyzes, and the like the collected signal.
The terminal 10 analyzes the electrical signal to obtain a time interval between the first test image and the second test image output from the screen, the time interval is used as the time length for the VR device to be tested 60 to run the preset program, and a delayed evaluation result for the VR device to be tested 60 to run the preset program is obtained according to the time length for the VR device to be tested 60 to run the preset program, which is obtained by each measurement.
Note that the terminal 10 is generally referred to as a PC.
Specifically, the terminal 10 calculates an average value of the time length of the preset program run by the VR device 60 to be tested, which is obtained by each measurement, takes the average value as the delay time length of the preset program run by the VR device 60 to be tested, and compares the delay time length with the preset delay time length to obtain the delay evaluation result of the preset program run by the VR device 60 to be tested.
The preset delay duration is the delay duration of the other known devices operating the preset program, and the delay of the to-be-tested VR device 60 in the operation of the preset program can be obtained through comparison compared with the delay of the other known devices operating the preset program, so that an evaluation result is obtained.
In the embodiment of the invention, a first test image is input into VR equipment to be tested before a preset program is operated, a second test image is input into the VR equipment to be tested after the preset program is operated, the time interval of the first test image and the second test image output from a screen is obtained after processing according to signals of the first test image and the second test image acquired from the screen of the VR equipment to be tested, the time interval is taken as the time length of the VR equipment to be tested for operating the preset program, and the evaluation result of the delay of the VR equipment to be tested for operating the preset program is obtained according to the time length of the VR equipment to be tested for operating the preset program obtained by each measurement, so that the delay of different programs operated by the VR equipment to be tested is objectively evaluated, and the accuracy of the most suitable program in the VR equipment to be tested is improved.
Referring to fig. 2, fig. 2 is a schematic flow chart of a method for evaluating virtual reality device program running delay according to a second embodiment of the present invention, where the method is used for testing the delay performance of a VR device when running a program.
The method comprises the following steps:
s201, before the VR device to be tested runs a preset program, inputting a first test image to the VR device to be tested;
the terminal can input a preset test program into the VR device to be tested and control the preset program to run, wherein the program can be an algorithm program or an application program.
Before step S201, the duration of the first test image and the duration of the second test image respectively displayed on the screen of the VR device to be tested are set. The duration of the display is limited to the output time interval, for example, 50ms, for the terminal to analyze the first test image and the second test image.
S202, controlling the to-be-tested VR equipment to run the preset program, and inputting a second test image to the to-be-tested VR equipment after the preset program is run;
the testing process of this embodiment can be performed when the VR device to be tested can work normally, and the VR device to be tested can normally play a video currently, wherein the first test image and the second test image are video pictures different from the normal play, for example, the first test image and the second test image can be a full white image and a full black image, respectively, or the first test image and the second test image can be a full black image and a full white image, respectively, or the first test image and the second test image are other images having an obvious difference from the video pictures, so that the testing can be completed smoothly.
S203, acquiring optical signals corresponding to the first test image and the second test image output by the screen of the VR device to be tested;
the photoelectric conversion device is connected with a screen of the VR equipment to be tested through an optical fiber, and the first test image output by the screen of the VR equipment to be tested and the optical signal corresponding to the second test image are obtained through the photoelectric conversion device.
The photoelectric conversion device includes one of the following devices: a photodiode, a phototriode, an avalanche photodiode, or a photomultiplier tube.
S204, processing the optical signal into an electric signal, and analyzing the electric signal to obtain the time interval between the first test image and the second test image output from the screen;
specifically, the optical signal is converted into a current signal, and the current signal is modulated into a voltage signal by a modulation circuit, and the minute voltage signal is amplified, filtered, debounced, noise-reduced, and the like.
Further, the voltage signal amplified after the modulation is analyzed, the output time of the first test image and the second test image is obtained, and the time interval of the first test image and the second test image output from the screen is obtained.
And S205, taking the time interval as the time length of the to-be-measured VR device to run the preset program, and obtaining the delayed evaluation result of the to-be-measured VR device to run the preset program according to the time length of the to-be-measured VR device to run the preset program obtained by each measurement.
Step S201 to step S204 may be executed in a circulating manner, that is, the first test pattern and the second test pattern are continuously input into the VR device to be tested, so as to obtain a time interval for correspondingly outputting the first test pattern and the second test pattern of the VR device to be tested, the time interval is used as the time length for the VR device to be tested to run the preset program by the terminal, an average value of the time lengths for the VR device to be tested to run the preset program, which is obtained by each measurement, is calculated, the average value is used as the delay time length for the VR device to be tested to run the preset program, and the delay time length and the preset delay time length are compared, so as to obtain the delay evaluation result for the VR device to be tested to run the preset program.
For details of the embodiment, please refer to the description of the embodiment shown in fig. 1.
In this embodiment, a first test image is input to the VR device to be tested before a preset program is run, a second test image is input to the VR device to be tested after the preset program is run, a time interval between the output of the first test image and the output of the second test image from the screen is obtained after processing according to signals of the first test image and the second test image acquired from the screen of the VR device to be tested, the time interval is used as a time length for the VR device to be tested to run the preset program, and a delay evaluation result for the VR device to be tested to run the preset program is obtained according to the time length for the VR device to be tested to run the preset program obtained by each measurement, so that the delay of the VR device to run different programs is objectively evaluated, and the accuracy of the most suitable program in the VR device to be tested is improved.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is provided for the method and apparatus for evaluating virtual reality device program running delay, and for those skilled in the art, there may be variations in the specific implementation and application scope according to the ideas of the embodiments of the present invention.
Claims (6)
1. A method for evaluating the running delay of a virtual reality device program is characterized by comprising the following steps:
setting the continuous display duration of the first test image and the second test image on the screen of the virtual reality equipment to be tested respectively, and acquiring an output time interval;
before the virtual reality equipment to be tested runs a preset program, inputting a first test image into the virtual reality equipment to be tested;
controlling the virtual reality equipment to be tested to run the preset program, and inputting a second test image to the virtual reality equipment to be tested after the preset program is run;
acquiring optical signals corresponding to the first test image and the second test image output by a screen of the virtual reality device to be tested;
processing the optical signal into an electrical signal, and analyzing the electrical signal to obtain a time interval between the first test image and the second test image output from the screen;
taking the time interval as the time length of the virtual reality equipment to be tested for running the preset program;
calculating the average value of the time length of the virtual reality equipment to be measured for running the preset program, which is obtained by each measurement;
and taking the average value as the delay time of the virtual reality equipment to be tested running the preset program, and comparing the delay time with the preset delay time to obtain the delay evaluation result of the virtual reality equipment to be tested running the preset program.
2. The method according to claim 1, wherein the acquiring the optical signals corresponding to the first test image and the second test image output by the screen of the virtual reality device to be tested comprises:
and acquiring the first test image output by the screen of the virtual reality equipment to be tested and the optical signal corresponding to the second test image through a photoelectric conversion device.
3. The method of claim 2, wherein the processing the optical signal into an electrical signal comprises:
converting the optical signal into a current signal, modulating the current signal into a voltage signal, amplifying the voltage signal, and filtering the amplified voltage signal;
then, said analyzing said electrical signal for a time interval at which said first test image and said second test image are output from said screen comprises:
and analyzing the processed voltage signal to obtain the time interval between the first test image and the second test image output from the screen.
4. An evaluation device for virtual reality equipment program running delay is used for being characterized by comprising:
the system comprises a terminal, a photoelectric conversion module, a circuit modulation module and a main control unit;
the terminal is connected with the virtual reality equipment to be tested and used for inputting a first test image and a second test image into the virtual reality equipment to be tested before the virtual reality equipment to be tested runs a preset program;
the terminal controls the virtual reality equipment to be tested to run the preset program, and after the preset program is run, a second test image is input into the virtual reality equipment to be tested;
the photoelectric conversion module is connected with a screen of the virtual reality equipment to be tested and is used for acquiring the first test image output by the screen of the virtual reality equipment to be tested and the optical signal corresponding to the second test image;
the photoelectric conversion module is connected with the circuit modulation module and is used for processing the optical signal into an electric signal;
the main control unit is respectively connected with the circuit modulation module and the terminal and is used for acquiring the electric signal from the circuit modulation module and sending the electric signal to the terminal;
the terminal is used for analyzing the electric signal to obtain a time interval between the first test image and the second test image output from the screen, taking the time interval as the time length for the virtual reality equipment to be tested to run the preset program, and obtaining a delayed evaluation result of the virtual reality equipment to be tested to run the preset program according to the time length for the virtual reality equipment to be tested to run the preset program obtained by each measurement;
the terminal is further used for setting the continuous display duration of the first test image and the second test image on the screen of the virtual reality device to be tested respectively;
the terminal is further used for calculating the average value of the time length of the virtual reality equipment to be measured for running the preset program, which is obtained by each measurement;
and taking the average value as the delay time of the virtual reality equipment to be tested running the preset program, and comparing the delay time with the preset delay time to obtain the delay evaluation result of the virtual reality equipment to be tested running the preset program.
5. The apparatus of claim 4, wherein the photoelectric conversion module comprises a photoelectric conversion device comprising: a photodiode, a phototriode, an avalanche photodiode, or a photomultiplier tube.
6. The apparatus of claim 4,
the photoelectric conversion module is used for converting the optical signal into a current signal;
the circuit modulation module is used for modulating the current signal into a voltage signal, amplifying the voltage signal and filtering the amplified voltage signal;
and the main control unit is used for acquiring the modulated signal after current amplification and sending the modulated signal to the terminal.
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| CN107564445A (en) * | 2017-10-10 | 2018-01-09 | 京东方科技集团股份有限公司 | The method of testing and system of display |
| CN108427612B (en) * | 2018-02-11 | 2021-07-09 | 深圳创维新世界科技有限公司 | Time delay measuring method |
| CN108415799B (en) * | 2018-02-11 | 2021-07-09 | 深圳创维新世界科技有限公司 | Time delay measuring system |
| CN109243249B (en) * | 2018-08-23 | 2021-07-06 | 广州慧通编程教育科技有限公司 | Method and device for generating evaluation program |
| CN109147059B (en) * | 2018-09-06 | 2020-09-25 | 联想(北京)有限公司 | Method and equipment for determining delay value |
| CN109696189B (en) * | 2018-12-29 | 2020-10-23 | 北京理工大学 | Rotation delay measuring method of VR helmet based on encoder |
| CN109696190B (en) * | 2018-12-29 | 2020-09-18 | 北京理工大学 | Method for measuring rotation delay of VR helmet based on gradient coding |
| CN109696188B (en) * | 2018-12-29 | 2020-07-21 | 北京理工大学 | Rotation delay measuring method of VR helmet based on laser tube |
| CN109696191B (en) * | 2018-12-29 | 2020-06-30 | 北京理工大学 | Movement delay measurement method of virtual reality head-mounted display equipment |
| CN109737997B (en) * | 2018-12-29 | 2020-10-20 | 北京理工大学 | Rotation delay measuring method of virtual reality head-mounted display equipment |
| CN114064443A (en) * | 2020-07-30 | 2022-02-18 | 腾讯科技（深圳）有限公司 | Application program testing method and device, computer equipment and storage medium |
| CN118158392A (en) * | 2024-04-29 | 2024-06-07 | 甬江实验室 | Delay time measurement method, system and target on-screen frequency determination method |
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