TY - GEN
T1 - Analysis and improvement of joint bilateral upsampling for depth image super-resolution
AU - Song, Yibing
AU - Gong, Lijun
PY - 2016/11/21
Y1 - 2016/11/21
N2 - We analyze and propose an improved implementation of joint bilateral upsampling algorithm [5] for depth image super-resolution (SR). The input to the algorithm is a low resolution (LR) depth image and its corresponding high resolution (HR) color image. With the guidance of HR color image, the depth edges can be preserved during the SR process. However, in the original implementation, the sparse sampling operation on the HR color image leads noticeable staircase effect on the generated result. In this paper, we perform a detailed analysis of the original implementation and formulate it as the joint bilateral filtering and nearest neighbor upsampling process. An improved implementation is then proposed to perform dense sampling on the guidance image. It will reduce staircase effect and demonstrated effective both quantitatively and qualitatively in the benchmark dataset.
AB - We analyze and propose an improved implementation of joint bilateral upsampling algorithm [5] for depth image super-resolution (SR). The input to the algorithm is a low resolution (LR) depth image and its corresponding high resolution (HR) color image. With the guidance of HR color image, the depth edges can be preserved during the SR process. However, in the original implementation, the sparse sampling operation on the HR color image leads noticeable staircase effect on the generated result. In this paper, we perform a detailed analysis of the original implementation and formulate it as the joint bilateral filtering and nearest neighbor upsampling process. An improved implementation is then proposed to perform dense sampling on the guidance image. It will reduce staircase effect and demonstrated effective both quantitatively and qualitatively in the benchmark dataset.
KW - Joint Bilateral Filter
KW - Super-Resolution
UR - http://www.scopus.com/inward/record.url?scp=85006746562&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85006746562&origin=recordpage
U2 - 10.1109/WCSP.2016.7752596
DO - 10.1109/WCSP.2016.7752596
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781509028603
T3 - International Conference on Wireless Communications and Signal Processing
BT - 2016 8th International Conference on Wireless Communications and Signal Processing, WCSP 2016
PB - IEEE
T2 - 8th International Conference on Wireless Communications and Signal Processing, WCSP 2016
Y2 - 13 October 2016 through 15 October 2016
ER -