Video live broadcast method for wearable devices

Abstract

The invention discloses a video live broadcast method for wearable devices, comprising processing at a sender and processing at a receiver. The sender decreases the spatial resolution of a high-definition video signal four times and then executes standard video encoding so as to greatly reduce the pressure put on a wireless network by the encoding data, and the receiver restores the proper resolution through super-resolution reconstruction. Time-domain motion matching needed for super-resolution reconstruction is speeded up with the help of inherent motion vector information of a video encoder. Moreover, a reconstruction residual error compensation link is introduced into a video codec loop to eliminate distortion between a super-resolution high-definition image and a real high-definition image. The mobile video live broadcast efficiency of wearable devices is improved greatly under the premise of no additional damage to the quality of high-definition videos.

Description

technical field [0001] The invention belongs to the technical field of video communication, and relates to a video live broadcast method, in particular to a wearable device-oriented video live broadcast method. technical background [0002] Wearable devices (Wearable Devices) are becoming a big hit in the tech world and electronics enthusiasts. A wearable device refers to a portable smart device worn on the body, which contains an independent computing chip, keeps responsive and connected to the network at all times, and can sense the environment and perform human-computer interaction. According to research, the global wearable device market revenue was US$2.7 billion in 2012. It is estimated that by 2018, the market size will reach US$8.3 billion, with shipments reaching 134 million units, and the compound annual growth rate in the next five years will be as high as 17.71%. In 2012, the market size of China's wearable devices reached 610 million yuan, with shipments of 2.3...

AI Technical Summary

Problems solved by technology

According to the current level of video coding technology, to smoothly transmit high-definition video in the use environment of wearable devices, the coding efficiency must be doubled, but the existing most advanced video coding standard H.265 is more advanced than the currently widely used standard H.264 can only be improved by 30-50%, and the computational complexity of H.265 remains high, which is not suitable for low-power wearable application platforms

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