Author(s)

Fan Yang, Hongbing Ma

Department of Electronic Engineering, Tsinghua University, Beijing, China.

x264 video codec uses lots of new video encoding technology based on H.264/AVC video encoding standard which enhances compression efficiency. However this results in so heavy computation that the x264 codec is not fit for real-time encoding application of high resolution video. This paper analyses the character of aerial video and then opti-mizes the inter-frame mode decision and motion estimation in x264 codec according to its character by reducing a lot of unnecessary computation. In the result, about 19% computation and encoding time is reduced with total bits and PSNR decreasing lightly.

x264; Aerial Video Encoding; Mode Decision; Motion Estimation

F. Yang and H. Ma, "Aerial Video Encoding Optimization Based On x264," Open Journal of Applied Sciences, Vol. 3 No. 1B, 2013, pp. 36-40. doi: 10.4236/ojapps.2013.31B008.