Question about the number of instances in the Hi4D dataset

[hshnrbyy]

In Table 1, the number of instances of Hi4D dataset used to training is 186.5K. But the total number of frames of Hi4D is 11k, the difference between them is 17 times. I‘m confused about how the number in Table 1 is calculated?

[wqyin]

Hi, we have checked the version of the HI4D dataset that we downloaded on our side. There are a total of 93,240 frames, and the number of instances reported in Table 1 is based on the number of bounding boxes. Since there are multiple persons in some data sequences, the total number of annotated instances is 186,480. These statistics are calculated based on the available raw data and annotations, without any filtering.