Chao Cao Marius Preda Vladyslav Zakharchenko Euee S. Jang Titus Zaharia Compression of Sparse and Dense Dynamic Point Clouds - Methods and Standards. 1537-1558 2021 109 Proc. IEEE 9 https://doi.org/10.1109/JPROC.2021.3085957 db/journals/pieee/pieee109.html#CaoPZJZ21