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Generation method of panoramic video code stream based on body area sensing array

A sensor array and panoramic video technology, applied in the field of image communication, can solve technical limitations and other problems, and achieve the effect of reducing dependence, low delay, and enhancing concealment performance

Inactive Publication Date: 2011-11-16
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For high-speed wireless video transmission, Bluetooth or ZigBee technology has many limitations

Method used

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  • Generation method of panoramic video code stream based on body area sensing array
  • Generation method of panoramic video code stream based on body area sensing array
  • Generation method of panoramic video code stream based on body area sensing array

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Embodiment Construction

[0019] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below with accompanying drawings.

[0020] Before introducing the preferred embodiment, some concepts used in the present invention will be described first. In the multi-source panoramic original data, multiple sub-frames collected at the same time constitute a "Super Frame" (Super Frame, referred to as "SF"), and several consecutive super-frames constitute a "Group of Group Of Pictures" (Group of Group Of Pictures). , referred to as "GoGOP"), each super-picture group is mainly composed of subframes that adopt forward predictive coding.

[0021] The panoramic video code stream generation method based on the body domain sensor array has the following characteristics: figure 1 The schematic diagram of the application scenario is shown. As a wearable panoramic monitoring system, the body area sensor array needs to flexibly install a coordinator and several sensor nod...

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Abstract

The invention provides a generation method of panoramic video code stream based on a body area sensing array. The generation method is characterized in that the body area sensing array consists of a coordinator and a plurality of sensor nodes which are distributed on a garment of human body, and a star topology ultra wideband body area network is adopted in intercommunication between the coordinator and the sensor nodes; in multi-channel acquisition tasks, the plurality of the sensor nodes are controlled to perform cylindrical projection panoramic imaging within a horizontal visual field at 360 degrees around a wearer, and the acquired multi-channel video images are transmitted into double super-frame buffer areas for synchronous caching and scheduling; in multi-view encoding tasks, multi-channel raw video data is subject to multi-view video encoding according to high-performance sub-frame-level encoding sequence; and in a remote transmission task, compressed code stream of multi-source panoramic video is returned to a monitoring center in real time through an external wide area network. The generation method provided by the invention has the beneficial effects that effective balance between system resource and code stream quality is realized, and overall effectiveness of low power consumption, low latency and high quality is obtained while system concealing property is improved.

Description

technical field [0001] The invention relates to a method for generating a video code stream for a wearable panoramic monitoring system, and belongs to the technical field of image communication. Background technique [0002] With the development of image processing, miniature sensors and wireless communication technology, portable wireless monitoring applications are gradually emerging. Users can use portable wireless monitoring systems to take pictures anytime and anywhere, and send the video information of the scene back to the monitoring center in real time. At present, the existing portable wireless monitoring system has a limited field of view, and can only monitor scenes within a certain range in front, and cannot take into account all events that occur within a 360-degree range around; There is still considerable room for improvement in the fusion of clothing. [0003] Panoramic imaging technology can obtain 360-degree field of view information at the same time, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04N7/18
Inventor 刘浩任立红钱剑敏赵曙光
Owner DONGHUA UNIV
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