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摘要：本发明公开了一种基于图像分割的通显一体化VLC通信方法及系统。所述VLC系统使用直下式LCD显示器作为VLC发送端和CMOS图像传感器作为VLC接收端。直下式显示器被均等地划分为4×4阵列，即16个子矩阵，把要传输的二进制数据信号加载到这16个子矩阵的中心的编码区域的亮度值上实现数据的发送。接收端采用CMOS图像传感器作为光信号捕获器件，捕获到包含噪声的畸变图像。在接收端对畸变图像进行基于阈值的图像分割，从而获得包含数据的图像帧，对每一帧图像再次进行图像分割得到16个编码区域，然后对每一个编码区域进行解调，进而实现高速数据传输。相对于传统的基于LED和光电二极管的VLC系统，本发明可以实现接收端和发送端同步播放视频的同时实现高速数据传输。
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Abstract： The invention discloses a communication-display integrated VLC method and system based on image segmentation. The VLC system uses a direct type LCD display as a VLC sending end and a CMOS image sensoras a VLC receiving end. The direct type display is equally divided into a 4*4 array, namely 16 sub-matrices, and a binary data signal to be transmitted is loaded to a brightness value of a coding region at the center of the 16 sub-matrices in order to realize data transmission. The receiving end uses the CMOS image sensor as an optical signal capturing device to capture a distorted image containing noise. Threshold-based image segmentation is carried out on the distorted image at the receiving end in order to obtain an image frame including data, the image segmentation is carried out on eachframe of image to obtain 16 coding regions, and then demodulation is carried out on each coding region, so that high-speed data transmission is achieved. Compared with a conventional VLC system basedon an LED and a photodiode, high-speed data transmission can be achieved while a video is simultaneously played at the receiving end and the sending end.
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申请人： 华南理工大学
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Applicant： UNIV SOUTH CHINA TECH
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地址： 510640 广东省广州市天河区********(隐藏)
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发明(设计)人： 关伟鹏 陈艺荣 吴玉香 谢灿宇
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Inventor： GUAN WEIPENG; CHEN YIRONG; WU YUXIANG; XIE CANYU
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主分类号： H04B10/116(2013.01)I
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分类号： H04B10/116(2013.01)I H04B10/516(2013.01)I H04B10/67(2013.01)I H04B10/69(2013.01)I H04N5/232(2006.01)I
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