A total of 8,264 groups of data were collected for national general sign language and sports, of which 8,189 groups were repaired for action. Among them, 75 groups of data were not repaired. The rest of the categories were not repaired (5,366 groups).
Data collection covers both indoor and outdoor environments, including offices, meeting rooms, parking lots, gardens, and other common work and daily-life scenarios.
Lighting conditions include normal lighting, low-light, and backlit scenarios commonly encountered in real-world settings.
Twenty video clips per participant, with each clip corresponding to the presentation of a single object and accompanied by three close-up images of the object from different angles.
The subject appears in upper-body or full-body views, holding one object with one or both hands, recorded in standing or seated postures. The object is moved according to predefined actions.
Each video clip includes a brief verbal description of the object provided by the model.
The subject is clearly visible, and the face is not occluded for extended periods during recording.
