PT Journal
AU Mikhail Mozerov
   Fei Yang
   Joost Van de Weijer
TI Sparse Data Interpolation Using the Geodesic Distance Affinity Space
SO IEEE Signal Processing Letters
JI SPL
PY 2019
BP 943
EP 947
VL 26
IS 6
DI 10.1109/LSP.2019.2914004
AB In this letter, we adapt the geodesic distance-based recursive filter to the sparse data interpolation problem. The proposed technique is general and can be easily applied to any kind of sparse data. We demonstrate its superiority over other interpolation techniques in three experiments for qualitative and quantitative evaluation. In addition, we compare our method with the popular interpolation algorithm presented in the paper on EpicFlow optical flow, which is intuitively motivated by a similar geodesic distance principle. The comparison shows that our algorithm is more accurate and considerably faster than the EpicFlow interpolation technique.
ER