Three Kinds of Optical Flow Technique: LCT, DAVE and DAVE4VM
Jihong Liu, Yanhui Dong, Yuhong Zheng
Available Online April 2015.
- https://doi.org/10.2991/icmra-15.2015.191How to use a DOI?
- velocity field; active region; optical ow techniques; helicity
- Photospheric velocity field is an important parameter in studying solar eruptions. This parameter can be deduced by three kinds of optical flow techniques, i.e., LCT , DAVE and DAVE4VM . By using an example of active region (AR) NOAA 12017, we have compared the distribution of the velocity field and magnetic helicity transport rate which calculated from the velocity field by these three methods. It is found that, the velocity fields are very similar for the results from LCT and DAVE method, while much different for those from DAVE4VM. However, the helicity transport rates are in similar trend for the results from all methods.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Jihong Liu AU - Yanhui Dong AU - Yuhong Zheng PY - 2015/04 DA - 2015/04 TI - Three Kinds of Optical Flow Technique: LCT, DAVE and DAVE4VM BT - Proceedings of the 3rd International Conference on Mechatronics, Robotics and Automation PB - Atlantis Press SP - 984 EP - 987 SN - 2352-538X UR - https://doi.org/10.2991/icmra-15.2015.191 DO - https://doi.org/10.2991/icmra-15.2015.191 ID - Liu2015/04 ER -