Utilisation of down and upsample in pre-processing to enhance quality of kinect depth compression

Abstract

This paper presents high performance kinect depth video compression with low computational cost. In the proposed scheme, down-sample is placed at the first part of pre-processing to reduce computational cost. Therefore, down-sampled image is refined in the middle of pre-processing part. At last stage of preprocessing, up-sample scheme is located in order to return into the original size then feed into H.264/AVC encoder. The proposed method can gain 3–4 dB and reduce computational time by 44 %–50 %.