Design and Implementation of Adaptive Preprocess System for Compress HD Video
As limited fixed-format of the video encoding for the digital signal processor of the DM6467 which is the DaVinci platform,adaptive preprocessing system of the video compression is designed and realized,which system based on the FPGA and DM6467.This system detectes adaptively resolution of the input video according to the input image,sampling the input image,converting the format of the RGB to the YUV chromatically space,which can directly used by the chip,and down-sampling the chromatically space.Then image is divided into various sub-frames by then technology of the sub frame transmission,and each sub-frame is restructured to the format of the raw.Lastly,the data of the format of the raw transmits to the DSP coding.Experimental results show that this system has ability of the sampling and coding to any format video,and greatly reduces the time delay of the image sampling as used of sub-frame transmission.
video codingDM6467sub-frame transmissionimage preprocess
NETL
NSTL
万方数据
维普
