  Six high-resolution TiO-band image sequences from the New Vacuum Solar
Telescope (NVST) are used to investigate the properties of intergranular bright
points (igBPs). We detect the igBPs using a Laplacian and morphological
dilation algorithm (LMD) and track them using a three-dimensional segmentation
algorithm automatically, and then investigate the morphologic, photometric and
dynamic properties of igBPs, in terms of equivalent diameter, the intensity
contrast, lifetime, horizontal velocity, diffusion index, motion range and
motion type. The statistical results confirm the previous studies based on
G-band or TiO-band igBPs from the other telescopes. It illustrates that the TiO
data from the NVST have a stable and reliable quality, which are suitable for
studying the igBPs. In addition, our method is feasible to detect and track the
igBPs in the TiO data from the NVST. With the aid of the vector magnetograms
obtained from the Solar Dynamics Observatory /Helioseismic and Magnetic Imager,
the properties of igBPs are found to be influenced by their embedded magnetic
environments strongly. The area coverage, the size and the intensity contrast
values of igBPs are generally larger in the regions with higher magnetic flux.
However, the dynamics of igBPs, including the horizontal velocity, the
diffusion index, the ratio of motion range and the index of motion type are
generally larger in the regions with lower magnetic flux. It suggests that the
absence of strong magnetic fields in the medium makes it possible for the igBPs
to look smaller and weaker, diffuse faster, move faster and further in a
straighter path.
