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Transmission method and device for panoramic picture based on user visual angle

A user and panoramic technology, applied in the field of perspective tracking, can solve the problems of redundant data, difficulty in ensuring real-time transmission, large amount of transmitted data, etc., to achieve the effect of reducing data volume, enhancing real-time performance, and reducing requirements

Inactive Publication Date: 2017-05-31
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has a large amount of transmitted data, too much redundant data, and high requirements for transmission bandwidth, so that it is difficult to guarantee real-time transmission in scenarios such as live video and interactive games.

Method used

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  • Transmission method and device for panoramic picture based on user visual angle
  • Transmission method and device for panoramic picture based on user visual angle
  • Transmission method and device for panoramic picture based on user visual angle

Examples

Experimental program
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Embodiment 1

[0022] Embodiment 1 is applicable to panoramic pictures captured by a panoramic camera, and also applicable to panoramic pictures rendered by using a GPU.

[0023] see figure 1 , figure 1 It is a schematic diagram of a panoramic picture transmission process based on the user's perspective in an embodiment of the present invention, as shown in figure 1 As shown, it mainly includes the following steps:

[0024] Step 101, the client sends the user perspective parameter to the server.

[0025] When the user's viewing angle changes, the client may send the user's viewing angle parameter to the server, and the user's viewing angle parameter may be represented by a plurality of coordinate data indicating the range of the user's viewing angle.

[0026] Step 102: The server receives the user's viewing angle parameter, extracts pictures within the user's viewing angle range from the panoramic picture according to the user's viewing angle parameter, and returns the extracted picture i...

Embodiment 2

[0040] Embodiment 2 is applicable to a panoramic image rendered by GPU.

[0041] see figure 2 , figure 2 It is a schematic diagram of the panoramic picture transmission process based on the user's perspective in Embodiment 2 of the present invention, as shown in figure 2 As shown, it mainly includes the following steps:

[0042] Step 201, the client sends the user perspective parameter to the server.

[0043] When the user's viewing angle changes, the client may send the user's viewing angle parameter to the server, and the user's viewing angle parameter may be represented by a plurality of coordinate data indicating the range of the user's viewing angle.

[0044]Step 202, the server receives the user's viewing angle parameters, determines the user's viewing angle range according to the user's viewing angle parameters, calculates the commands and data required to use the GPU to render the pictures within the user's viewing angle range, and uses the GPU to render the comm...

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Abstract

The invention discloses a transmission method and device for a panoramic picture based on a user visual angle. The method comprises the steps that a server receives user visual angle parameter information sent by a client; panoramic picture information of a user visual angle range in the panoramic picture is extracted according to the user visual angle parameter information; and returning the panoramic picture information of the user visual angle range to the client. According to the method and the device, the transmission data volume of the panoramic picture can be reduced, the demand for transmission bandwidth is reduced, and the transmission timeliness is improved.

Description

technical field [0001] The present invention relates to the technical field of viewing angle tracking, in particular to a method and device for transmitting a panoramic picture based on a user's viewing angle. Background technique [0002] Panoramic video technology is being gradually applied to all aspects, quietly changing people's existing work and lifestyle. The realization of panoramic video technology is essentially based on key technologies such as the generation, transmission, display, and perspective tracking of panoramic pictures. [0003] The angle of view tracking technology is to ensure that the smoothness of the display can be maintained when the user's angle of view changes. In the prior art, the solution to the viewing angle tracking problem is to completely transmit each frame of the panoramic picture to the client, and the client device performs filtering according to the user's viewing angle to display the fragments within the current viewing angle range....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/218H04N21/44
CPCH04N21/21805H04N21/44012
Inventor 袁兆卫
Owner SAMSUNG ELECTRONICS CHINA R&D CENT
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