基于TMS320DM6446高分辨率视频采集系统设计  

The Design of High-Resolution Video Captureing System Based on TMS320DM6446

作　　者：李付江[1] 张刚[1] 

机构地区：[1]太原理工大学信息工程学院,山西太原030024

出　　处：《太原理工大学学报》2009年第2期134-136,共3页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金(60372058;60772101);山西省自然科学基金(20051009)

摘　　要：完成了基于TMS320DM6446高分辨率视频数据采集的设计。采用SONY公司85万像素的CCD传感器,利用通用DSP(DM64x+)取代图像采集套件的专用DSP处理10bit Bayer模板原始数据信号。经过中值滤波,噪声滤波,CFA插值和RGB到YUV转换等算法处理,输出分辨率为1 024×768的YUV(4:2:2)格式的数字视频信号,进一步通过编码器处理,可支持1080P高清视频信号输出。A high-resolution video capturing system was designed based on TMS320DM6446. Using Sony company＇s 850k pixels image sensor,10 bit raw data of Bayer pattern were transmitted to general DSP（DM64x＋） for processing instead of special DSP. After the processing of median filtering, nosie filtering, CFA interpolation and RGB to YUV conversion, the YUV（4.2.2） digital video signal of resolution 1024 ＊ 768 was generated. With further processing with encoder, 1080P HDTV video signal was supported.

关 键 词：CCD 中值滤波 噪声滤波 CFA插值 TMS320DM6446 

分 类 号：TN946[电子电信—信号与信息处理]