Wireless transmission method and system for high-definition video image

A technology for wireless transmission and high-definition video, applied in the field of high-definition video image data transmission methods and systems, can solve problems such as inability to meet user requirements, difficult application, large-scale popularization, high cost, etc., and achieve low power consumption and low hardware equipment requirements , The effect of reducing cost and resource consumption

Inactive Publication Date: 2017-01-25
深圳市迪威码半导体有限公司
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Problems solved by technology

Therefore, in some occasions where high-definition video image transmission requires high real-time applications, it will not be able to meet user requirements
At the same time, the high cost will make it difficult for related applications to be widely used

Method used

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  • Wireless transmission method and system for high-definition video image
  • Wireless transmission method and system for high-definition video image
  • Wireless transmission method and system for high-definition video image

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] Such as figure 2 As shown, a high-definition video image wireless transmission method, the video source image is subjected to DCT transformation to obtain DCT coefficients, and the DCT coefficients are further compressed. Perform compression processing; wherein the Y component is a Y luminance dimension component, and the UV component is a UV chrominance dimension component; the compression processing result is subjected to scrambling processing; and then the scrambling processing result is used for constellation mapping of unequal protection , form OFDM symbols by framing according to th...

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Abstract

The invention belongs to the technical field of communication and especially relates to a wireless transmission method and system for a high-definition video image. The method comprises the following steps: performing DCT conversion on the high-definition video image; simply compressing a DCT coefficient, thereby reducing a mapping bit number; performing unequal protecting constellation labeling on the DCT coefficient after compression; framing, thereby forming OFDM symbols and sending each OFDM symbol. No encoder is required for compressing code, so that the data link delay can be greatly reduced; the power consumption is low; the requirement on hardware equipment is lower; the cost and the resource consumption are reduced; the phenomena of frame stagnation and blank screen can be avoided when the signal is weak; low-quality image can be replaced; the important information can be powerfully protected according to the unequal protecting constellation labeling method; the method is beneficial to the wide popularization of the wireless communication application of the high-definition video image.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a high-definition video image data transmission method and system. Background technique [0002] Since the development of communication technology, video image-based media data transmission has occupied a large proportion of communication services. On the other hand, due to the increasing progress of communication technology, high-quality, low-latency video image data transmission has become possible. OFDM technology has less inter-carrier interference, high frequency band utilization, and converts high-speed data signals into parallel low-speed sub-data streams. Due to its excellent characteristics, it is favored in the field of communication technology. OFDM technology and its related equipment systems have been recognized. improve dramatically. At the same time, due to the rapid development of media technology and its applications, many video and image appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/625H04N19/89H04L27/36
CPCH04N19/625H04L27/36H04N19/89
Inventor 周彩章陈悦骁杨佳俊
Owner 深圳市迪威码半导体有限公司
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