CN111131915A - Panoramic video interactive playing method based on laser radar - Google Patents
Panoramic video interactive playing method based on laser radar Download PDFInfo
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- CN111131915A CN111131915A CN202010051320.5A CN202010051320A CN111131915A CN 111131915 A CN111131915 A CN 111131915A CN 202010051320 A CN202010051320 A CN 202010051320A CN 111131915 A CN111131915 A CN 111131915A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000002452 interceptive effect Effects 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 6
- 238000009877 rendering Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 238000002372 labelling Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013501 data transformation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/816—Monomedia components thereof involving special video data, e.g 3D video
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention provides a panoramic video interactive playing method based on a laser radar, which comprises the following steps of; step S1: shooting a panoramic video by using panoramic video shooting equipment; step S2: importing the shot panoramic video into a panoramic video playing system; step S3: when the panoramic video playing system plays a video, the watching space of a playing field can be used for video watching personnel to walk or step, and a laser radar is arranged at the playing field to acquire human body step frequency data of the video watching personnel in the playing field; step S4: associating the panoramic video playing speed with the human body frequency stepping data, and synchronously adjusting the speed of the panoramic video playing speed along with the speed change of the human body frequency stepping data; the invention can obtain better immersive experience, enhance the interactive effect and increase the healthy exercise amount of the user to a certain extent.
Description
Technical Field
The invention relates to the technical field of panoramic video playing, in particular to a panoramic video interactive playing method based on a laser radar.
Background
At present, a method for roaming by using a panoramic technology is mainly three-dimensional panoramic image roaming, that is, several panoramic images are associated in a link mode, and a user can go to other images for tour by clicking other image links of the current panoramic image, but the method mainly uses static tour and has poor immersion.
In a further development, a panoramic video visiting mode is adopted, and a user watches the panoramic video shot by a fixed path, so that panoramic roaming of a plurality of scenes is realized. However, as the user watches the video which is shot according to the fixed path and speed, the user cannot control the browsing speed through the independent intention due to the pure video watching, and the interactivity is relatively poor.
Most of the existing panoramic interactive devices are based on a riding mode or other application device modes, the modes meet the requirements of most users, and the use barriers may exist for some old and young people who are not suitable for doing sports. The method provided by the invention controls the panoramic video to be played by acquiring the human body tread frequency data by the aid of the laser radar, is convenient and simple to operate, and can be used by users of all ages.
In view of this, the interactive panoramic video playing method based on the laser radar provided by the invention has the beneficial effects that: according to the panoramic video playing method provided by the invention, the user can control the playing speed of the panoramic video by adjusting the self frequency stepping speed, so that the user can select a proper speed to visit or stay at the proper speed to watch carefully in the roaming process, better immersive experience can be obtained, the interactive effect can be enhanced, the healthy exercise amount of the user can be increased to a certain extent, and the interactive mode can be applied to the subsequent playing of various videos.
Disclosure of Invention
The invention provides a panoramic video interactive playing method based on a laser radar, which can obtain better immersive experience, enhance the interactive effect and increase the healthy exercise amount of a user to a certain extent.
The invention adopts the following technical scheme.
A panoramic video interactive playing method based on a laser radar comprises the following steps;
step S1: shooting a panoramic video by using panoramic video shooting equipment;
step S2: importing the shot panoramic video into a panoramic video playing system;
step S3: when the panoramic video playing system plays a video, the watching space of a playing field can be used for video watching personnel to walk or step, and a laser radar is arranged at the playing field to acquire human body step frequency data of the video watching personnel in the playing field;
step S4: and associating the panoramic video playing speed with the human body frequency stepping data, and synchronously adjusting the panoramic video playing speed along with the change of the human body frequency stepping data.
And the viewer watches the video played by the panoramic video playing system through the head-mounted display.
When the head of a video viewer moves, the panoramic video playing system switches the video playing visual angle according to the orientation of the head-mounted display, so that the video viewer can browse scenes all around by means of the head-mounted display.
When the video viewer browses the scene by means of the head-mounted display, the panoramic video playing system can display the name of the scene or the name of the object currently displayed by the head-mounted display.
In step S1, the panoramic video photographing apparatus photographs a panoramic video at a preset path and a preset travel speed.
The step S2 includes the following steps;
step A1, creating a background sphere space which can be used as a panoramic video playing system to play video and setting the radius of the sphere;
a2, acquiring sequence frame images in the panoramic video playing process, and mapping the sequence frame images to a texture map which can be matched with the size of a sphere;
a3, attaching the texture map to the sphere, and creating a rendering script for the sphere, wherein the rendering script can enable the sphere to generate an internal and external double-sided mapping display effect;
step A4, when the panoramic video playing system plays the video, the camera position of the panoramic video playing system is arranged at the center of the sphere, so that the user can be positioned at the center of the sphere and watch the panoramic video through the camera view angle when watching the video;
and A5, making a jump interface and video target object labeling for the panoramic video playing system.
The step S3 includes the following steps;
step B1, connecting the sensor of the laser radar to a computer;
b2, placing the laser radar on the ground of the playing field, stepping or walking the video viewers in a certain range of the planned viewing space, and detecting by the laser radar to obtain stepping frequency data of the video viewers;
and step B3, converting the frequency stepping data acquired by the laser radar into the current movement traveling speed data of the video viewer or the simulated traveling speed data of the video viewer at the stepping frequency by software preinstalled in the computer, and importing the traveling speed data into the panoramic video playing system.
In the step B3, the horizontal scanning surface of the laser radar is adjacent to the ground; the specific conversion method comprises the following steps:
step C1, creating a data conversion coordinate system, wherein the vertical axis of the coordinate system is a reference line formed by the height of the horizontal scanning surface of the laser radar, and the horizontal axis of the coordinate system is the watching time of a video watching person;
step C2, when the foot lifting height of the video viewer reaches the height H of the horizontal scanning surface touching the laser radar, software preinstalled in the computer records foot lifting time T1 and T2; wherein T1 is the time point when the height of the first foot rises to 0 (i.e. the first foot is about to lift up when contacting the horizontal scanning surface) during the human body taking a step, and T2 is the time point when the height of the other foot of the human body falls to 0 (i.e. the other foot falls to contact the horizontal scanning surface); the time difference between T1 and T2 is T, which is the total time for the video viewer to lift the left foot and the right foot of the human body once, and is equivalent to the time for walking by one step;
and step C3, calculating the tread frequency data of the video viewer according to the time for walking by one step obtained in the step C2, and calculating the human body advancing speed data according to the preset step length.
In step S4, after the panoramic video playing system receives the traveling speed data of the video viewer converted from the step data, the panoramic video playing speed is associated with the traveling speed data of the video viewer, and the speed of the panoramic video playing speed, the pause and the start of the video playing are synchronously adjusted according to the change of the traveling speed data.
When a plurality of video watchers exist, the computer averages the treading frequency data of feet of the people in the playing field according to the number of the people so as to simulate the plurality of video watchers in the playing field as a travel group, simulate the group walking speed of the travel group and adjust the panoramic video playing according to the group walking speed.
According to the panoramic video playing method provided by the invention, the user can control the playing speed of the panoramic video by adjusting the self frequency stepping speed, so that the user can select a proper speed to visit or stay at the proper speed to watch carefully in the roaming process, better immersive experience can be obtained, the interactive effect can be enhanced, the healthy exercise amount of the user can be increased to a certain extent, and the interactive mode can be applied to the subsequent playing of various videos.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic flow diagram of the present invention;
FIG. 3 is a schematic diagram of a data transformation coordinate system;
in the figure: 1-laser radar; 2-a computer; 3-head mounted display.
Detailed Description
As shown in fig. 1-3, a panoramic video interactive playing method based on a laser radar 1 includes the following steps;
step S1: shooting a panoramic video by using panoramic video shooting equipment;
step S2: importing the shot panoramic video into a panoramic video playing system;
step S3: when the panoramic video playing system plays a video, the watching space of a playing field can be used for video watching personnel to walk or step, and a laser radar is arranged at the playing field to acquire human body step frequency data of the video watching personnel in the playing field;
step S4: and associating the panoramic video playing speed with the human body frequency stepping data, and synchronously adjusting the panoramic video playing speed along with the change of the human body frequency stepping data.
The viewer watches the video played by the panoramic video playing system through the head-mounted display 3.
When the head of a video viewer moves, the panoramic video playing system switches the video playing visual angle according to the orientation of the head-mounted display, so that the video viewer can browse scenes all around by means of the head-mounted display.
When the video viewer browses the scene by means of the head-mounted display, the panoramic video playing system can display the name of the scene or the name of the object currently displayed by the head-mounted display.
In step S1, the panoramic video photographing apparatus photographs a panoramic video at a preset path and a preset travel speed.
The step S2 includes the following steps;
step A1, creating a background sphere space which can be used as a panoramic video playing system to play video and setting the radius of the sphere;
a2, acquiring sequence frame images in the panoramic video playing process, and mapping the sequence frame images to a texture map which can be matched with the size of a sphere;
a3, attaching the texture map to the sphere, and creating a rendering script for the sphere, wherein the rendering script can enable the sphere to generate an internal and external double-sided mapping display effect;
step A4, when the panoramic video playing system plays the video, the camera position of the panoramic video playing system is arranged at the center of the sphere, so that the user can be positioned at the center of the sphere and watch the panoramic video through the camera view angle when watching the video;
and A5, making a jump interface and video target object labeling for the panoramic video playing system.
The step S3 includes the following steps;
step B1, connecting the sensor of the laser radar to the computer 2;
b2, placing the laser radar on the ground of the playing field, stepping or walking the video viewers in a certain range of the planned viewing space, and detecting by the laser radar to obtain stepping frequency data of the video viewers;
and step B3, converting the frequency stepping data acquired by the laser radar into the current movement traveling speed data of the video viewer or the simulated traveling speed data of the video viewer at the stepping frequency by software preinstalled in the computer, and importing the traveling speed data into the panoramic video playing system.
In the step B3, the horizontal scanning surface of the laser radar is adjacent to the ground; the specific conversion method comprises the following steps:
step C1, creating a data conversion coordinate system, wherein the vertical axis of the coordinate system is a reference line formed by the height of the horizontal scanning surface of the laser radar, and the horizontal axis of the coordinate system is the watching time of a video watching person;
step C2, when the foot lifting height of the video viewer reaches the height H of the horizontal scanning surface touching the laser radar, software preinstalled in the computer records foot lifting time T1 and T2; wherein T1 is the time point when the height of the first foot rises to 0 (i.e. the first foot is about to lift up when contacting the horizontal scanning surface) during the human body taking a step, and T2 is the time point when the height of the other foot of the human body falls to 0 (i.e. the other foot falls to contact the horizontal scanning surface); the time difference between T1 and T2 is T, which is the total time for the video viewer to lift the left foot and the right foot of the human body once, and is equivalent to the time for walking by one step;
and step C3, calculating the tread frequency data of the video viewer according to the time for walking by one step obtained in the step C2, and calculating the human body advancing speed data according to the preset step length.
In step S4, after the panoramic video playing system receives the traveling speed data of the video viewer converted from the step data, the panoramic video playing speed is associated with the traveling speed data of the video viewer, and the speed of the panoramic video playing speed, the pause and the start of the video playing are synchronously adjusted according to the change of the traveling speed data.
When a plurality of video watchers exist, the computer averages the treading frequency data of feet of the people in the playing field according to the number of the people so as to simulate the plurality of video watchers in the playing field as a travel group, simulate the group walking speed of the travel group and adjust the panoramic video playing according to the group walking speed.
Claims (10)
1. A panoramic video interactive playing method based on laser radar is characterized in that: the playing method comprises the following steps;
step S1: shooting a panoramic video by using panoramic video shooting equipment;
step S2: importing the shot panoramic video into a panoramic video playing system;
step S3: when the panoramic video playing system plays a video, the watching space of a playing field can be used for video watching personnel to walk or step, and a laser radar is arranged at the playing field to acquire human body step frequency data of the video watching personnel in the playing field;
step S4: and associating the panoramic video playing speed with the human body frequency stepping data, and synchronously adjusting the panoramic video playing speed along with the change of the human body frequency stepping data.
2. The method for playing panoramic video interactively based on the laser radar as claimed in claim 1, wherein: and the viewer watches the video played by the panoramic video playing system through the head-mounted display.
3. The method for playing panoramic video interactively based on the laser radar as claimed in claim 2, wherein: when the head of a video viewer moves, the panoramic video playing system switches the video playing visual angle according to the orientation of the head-mounted display, so that the video viewer can browse scenes all around by means of the head-mounted display.
4. The panoramic video interactive playing method based on the laser radar as claimed in claim 3, wherein: when the video viewer browses the scene by means of the head-mounted display, the panoramic video playing system can display the name of the scene or the name of the object currently displayed by the head-mounted display.
5. The method for playing panoramic video interactively based on the laser radar as claimed in claim 1, wherein: in step S1, the panoramic video photographing apparatus photographs a panoramic video at a preset path and a preset travel speed.
6. The method for playing panoramic video interactively based on the laser radar as claimed in claim 1, wherein: the step S2 includes the following steps;
step A1, creating a background sphere space which can be used as a panoramic video playing system to play video and setting the radius of the sphere;
a2, acquiring sequence frame images in the panoramic video playing process, and mapping the sequence frame images to a texture map which can be matched with the size of a sphere;
a3, attaching the texture map to the sphere, and creating a rendering script for the sphere, wherein the rendering script can enable the sphere to generate an internal and external double-sided mapping display effect;
step A4, when the panoramic video playing system plays the video, the camera position of the panoramic video playing system is arranged at the center of the sphere, so that the user can be positioned at the center of the sphere and watch the panoramic video through the camera view angle when watching the video;
and A5, making a jump interface and video target object labeling for the panoramic video playing system.
7. The method for playing panoramic video interactively based on the laser radar as claimed in claim 1, wherein: the step S3 includes the following steps;
step B1, connecting the sensor of the laser radar to a computer;
b2, placing the laser radar on the ground of the playing field, stepping or walking the video viewers in a certain range of the planned viewing space, and detecting by the laser radar to obtain stepping frequency data of the video viewers;
and step B3, converting the frequency stepping data acquired by the laser radar into the current movement traveling speed data of the video viewer or the simulated traveling speed data of the video viewer at the stepping frequency by software preinstalled in the computer, and importing the traveling speed data into the panoramic video playing system.
8. The method of claim 7, wherein the method comprises the following steps: in the step B3, the horizontal scanning surface of the laser radar is adjacent to the ground; the specific conversion method comprises the following steps:
step C1, creating a data conversion coordinate system, wherein the vertical axis of the coordinate system is a reference line formed by the height of the horizontal scanning surface of the laser radar, and the horizontal axis of the coordinate system is the watching time of a video watching person;
step C2, when the foot lifting height of the video viewer reaches the height H of the horizontal scanning surface touching the laser radar, software preinstalled in the computer records foot lifting time T1 and T2; wherein T1 is the time point when the height of the first foot rises to 0 (i.e. the first foot is about to lift up when contacting the horizontal scanning surface) during the human body taking a step, and T2 is the time point when the height of the other foot of the human body falls to 0 (i.e. the other foot falls to contact the horizontal scanning surface); the time difference between T1 and T2 is T, which is the total time for the video viewer to lift the left foot and the right foot of the human body once, and is equivalent to the time for walking by one step;
and step C3, calculating the tread frequency data of the video viewer according to the time for walking by one step obtained in the step C2, and calculating the human body advancing speed data according to the preset step length.
9. The method of claim 7, wherein the method comprises the following steps: in step S4, after the panoramic video playing system receives the traveling speed data of the video viewer converted from the step data, the panoramic video playing speed is associated with the traveling speed data of the video viewer, and the speed of the panoramic video playing speed, the pause and the start of the video playing are synchronously adjusted according to the change of the traveling speed data.
10. The method of claim 7, wherein the method comprises the following steps: when a plurality of video watchers exist, the computer averages the treading frequency data of feet of the people in the playing field according to the number of the people so as to simulate the plurality of video watchers in the playing field as a travel group, simulate the group walking speed of the travel group and adjust the panoramic video playing according to the group walking speed.
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| CN109429057A (en) * | 2017-07-12 | 2019-03-05 | 旺玖科技股份有限公司 | Synchronous 3D panoramic video playing system |
| CN110109552A (en) * | 2019-05-23 | 2019-08-09 | 重庆大学 | Virtual driving scene modeling method based on true environment |
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2020
- 2020-01-17 CN CN202010051320.5A patent/CN111131915A/en active Pending
Patent Citations (4)
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| US20180275242A1 (en) * | 2017-03-24 | 2018-09-27 | Samsung Electronics Co., Ltd. | System and method for synchronizing tracking points |
| CN109429057A (en) * | 2017-07-12 | 2019-03-05 | 旺玖科技股份有限公司 | Synchronous 3D panoramic video playing system |
| CN108762498A (en) * | 2018-05-22 | 2018-11-06 | 重庆子元科技有限公司 | The virtual reality system of human body walking gesture stability |
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Application publication date: 20200508 |