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Wireless data transmission method and device

A video data and sequence technology, applied in the direction of adjustment of transmission mode, transmission system, transportation and packaging, etc., can solve the problems of inability to obtain correct images in decoding, error recovery, data errors, etc., and achieve high reconstructed image quality and improve reliability. Effect

Inactive Publication Date: 2020-12-25
SZ DJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the data is split directly, as long as there is an error in the data transmission on one link, even if the data transmission on the other three links is correct, the final frame data will be wrong, and this error may cause subsequent decoding to fail to obtain correct image, a fault-tolerant scheme must be employed for error recovery

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  • Wireless data transmission method and device
  • Wireless data transmission method and device
  • Wireless data transmission method and device

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Embodiment Construction

[0024] The present disclosure will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the present disclosure should not be limited to the specific embodiments described below. In addition, for the sake of brevity, detailed descriptions of well-known technologies that are not directly related to the present disclosure are omitted to prevent confusion to the understanding of the present disclosure.

[0025] figure 1 is a flowchart illustrating a method 10 according to one embodiment of the present disclosure.

[0026] Such as figure 1 As shown, in step S110, time downsampling is performed on an image sequence including a plurality of frames to form a plurality of subsequences.

[0027] figure 2 is a schematic diagram illustrating temporal downsampling of an image sequence according to an embodiment of the present disclosure. exist figure 2 In the example shown, the original image sequence (P0, P1, ...

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Abstract

A method for processing video data is provided. The method includes: performing time downsampling on an image sequence to form a plurality of subsequences; encoding the plurality of subsequences respectively to form a plurality of encoded subsequences; The bandwidth of each channel in the channel, select the frame to be transmitted. A drone and a computer-readable storage medium are also provided.

Description

technical field [0001] The present disclosure relates to the field of wireless communication technologies, and more specifically, the present disclosure relates to a wireless data transmission method and device. Background technique [0002] At present, when the wireless channel or the channel bandwidth changes in real time, how to use the wireless channel to transmit video with low delay is a hot topic of research and application. A multi-link channel can use multiple data transmission channels to achieve the purpose of expanding the communication bandwidth. [0003] Under the conditions of multi-link wireless and unreliable channels, it is necessary to provide a matching source coding scheme to increase the reliability of video transmission and improve the quality of video transmission. In current multi-link aggregation transmission, multiple links are mainly used for bandwidth expansion. The sender subpackages the coded code stream data, and distributes the data to diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N21/2343H04N21/2383H04L47/2416
CPCH04N7/18H04N21/2343H04N21/2383B64U2101/30H04L47/2416H04N21/2662H04N21/234381H04N21/2187H04N21/43637H04N21/631H04N21/2402H04L1/0014H04L1/0006H04L1/02H04L47/125H04L45/24H04N21/234327H04N21/23439
Inventor 朱磊
Owner SZ DJI TECH CO LTD