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Low-redundancy compensation method of video transmission packet loss in erasure channel

A technology of video transmission and channel deletion, which is applied in the field of network video transmission, can solve problems such as decoding failure and transmission delay, and achieve the effect of ensuring real-time transmission

Inactive Publication Date: 2015-03-11
JIANGSU MORNINGHAN ELECTRONICS TECH CO LTD
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  • Abstract
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Problems solved by technology

This method effectively solves the problem of resending data after packet loss occurs in the data transmission process, resulting in transmission delay or decoding failure, and ensures the real-time and integrity of data transmission without using the packet loss retransmission mechanism.

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  • Low-redundancy compensation method of video transmission packet loss in erasure channel
  • Low-redundancy compensation method of video transmission packet loss in erasure channel
  • Low-redundancy compensation method of video transmission packet loss in erasure channel

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Embodiment Construction

[0041] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] In order to achieve the purpose of the present invention, as Figure 1-4 As shown, in some embodiments of the low redundancy compensation method for video transmission packet loss in the erasure channel of the present invention,

[0043] The present invention deletes the video transmission packet loss low-redundancy compensation method in the channel, which is used for error-free transmission of video data. The present invention method includes: the sending end processes the data to be sent, and adds redundant packets to the data to be sent to form The new data to be sent is sent to the receiving end. If there is packet loss in the data received by the receiving end, the receiving end restores the lost data through redundant packets.

[0044] The invention adds redundant packets with low redundancy to the data to be sent, which can ef...

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Abstract

The invention discloses a low-redundancy compensation method of video transmission packet loss in an erasure channel, which is used for error-free transmission of video data. The low-redundancy compensation method comprises the following steps: processing to-be-transmitted data through a transmitting terminal, adding a few redundancy packets into the data to be transmitted so as to form new data to be transmitted, transmitting the new data to a receiving terminal, and if the packet of data received by the receiving terminal is lost, recovering the lost data through the redundancy packets by the receiving terminal. By adopting the low-redundancy compensation method, the lost data can be recovered through the redundancy packets, so that complete data information can be decoded. By adopting the method, the problems that the transmission is delayed or the decoding is failed as data is required to be retransmitted when the packets are lost in the data transmission process are effectively solved, the real-time property and the completeness of data transmission are ensured, and a packet loss retransmission mechanism is not needed.

Description

technical field [0001] The invention relates to the field of network video transmission in a deletion channel, in particular to a low redundancy compensation method for video transmission packet loss in a deletion channel. Background technique [0002] The characteristic of erasure channel is that due to some uncorrectable errors in data transmission, some data or packets can only be discarded, that is, deleted, which is reflected in the packet loss rate at the application layer. In addition, in some types of channels, such as deep space satellite communication, the delay of data transmission is relatively large, which makes the performance of reliable data transmission protocols such as TCP based on the error retransmission mechanism drop sharply, and cannot be applied to real-time requirements. video transmission. Due to resource constraints, the bandwidth of this type of channel often has certain limitations, and it is impossible to restore lost data through a high-redun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/647H04N21/637
CPCH04N21/64792H04N21/6375
Inventor 陈志炜刘金权
Owner JIANGSU MORNINGHAN ELECTRONICS TECH CO LTD
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