Method and system for improving image quality of video phone

Abstract

The utility model discloses a method and a system to improve the image quality of a visual telephone. The method comprises a plurality of steps as follow: firstly, an image acquisition device samples the image data at N times of speed than the video coding frame rate speed of the visual telephone; wherein, the number N is more than 1; secondly, the image acquisition device sends the image data to a baseband receiver, and the baseband receiver receives and processes the image data. The system comprises the image acquisition device and a baseband processing chip; wherein, the image acquisition device is connected with the baseband processing chip; the image acquisition device samples the image data at N times of speed than the video coding frame rate speed of the visual telephone, and N is more than 1. The utility model has an advantage of improving the image quality of the visual telephone efficiently.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and system for improving videophone image quality. Background technique [0002] The rapid development of the mobile communication industry, the current mobile communication network is moving towards the 3G era. The real application of 3G is the real-time application provided under broadband, including video telephony (video conferencing), video streaming, remote wireless monitoring, multimedia real-time games, video on demand and so on. At present, the industry has adopted the 3G-324M protocol to provide high enough communication quality for videophone services. The 3G real-time multimedia service based on the 3G-324M protocol first appeared in Japan, and has now been applied to the United Kingdom, Italy, Australia and Spain, and has found a foothold in more and more countries, especially in WCDMA (Wideband Code Division Multiple Access ) network. In order to ensu...

AI Technical Summary

Problems solved by technology

Since most mobile phone cameras are CMOS (complementary metal-oxide-semiconductor) solid-state image sensors, which are in progressive exposure mode, there are certain defects in the image acquisition of high-speed moving objects, which will cause serious tilting and blurred boundaries. phenomenon, and the current video coding of videophone is based on 8×8 brightness blocks, so the content of the collected image blocks is relatively vague, which further increases the complexity of video coding, and the final effect is relatively poor. Very serious mosaic, this is a very important reason for the poor quality of mobile phone videophone

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