Adaptive interpolation algorithm for Fast and Efficient Video encoding in H.264

H.264/MPEG-4 AVC is the latest video-coding standard jointly developed by VCEG (Video Coding Experts Group of ITU-T and MPEG (Moving Picture Experts Group) of ISO/IEC. It uses state of the art video signals algorithms providing enhanced efficiency if compared with previous standards. A 1/4 pel displacement resolution is used in order to reduce the bitrate of the video signal in H.264. In this paper, we propose an algorithm for the reduction of the interpolation computational time. The goal is to adapt the H264 1/4 pel interpolation to the complexity of the video stream to encode, on the basis of our motion detection algorithm. The proposed solution allows decreasing the overall encoder complexity both in low and high complex sequences. This paper illustrates the integration of our motion detection algorithm in the H.264 encoder. The obtained results are compared with the jm86 standard interpolation using different quantization values.