SCAIL-2 Triple Character Motion Drive

This is an AI video generation application based on SCAIL 2, SAM3 three-subject tracking, three-person skeletal motion guidance, and loop continuation.

Users only need to upload a reference image of three people or three subjects, and then upload a three-person driving video. The system will automatically recognize the actions of the three subjects in the driving video and enable the three characters or roles in the reference image to follow the video and complete the motion transfer.

Unlike ordinary single-person or two-person video generation, this process is specifically designed for three-person/three-subject group action scenarios. It uses SAM3 to simultaneously track three subjects and maintains the left/middle/right character relationship in a left_to_right manner, reducing common issues in three-person videos such as role swapping, missing characters, missing third person, identity drift, and motion misalignment.

The entire process is completed automatically: driving video reading, reference image size unification, driving video size unification, three-subject recognition, three-way mask generation, SCAIL 2 skeletal motion guidance, initial segment generation, loop continuation, overlapping frame processing, color matching, frame sequence merging, and final video output.

The final output is a three-subject motion video, suitable for three-person dances, three-character interactions, three-person motion transfers, group skits, three-character showcases, AI dance videos, group motion guidance for animals or anthropomorphic characters, and packaging into RunningHub video applications.

If packaged into a RunningHub application, the core selling point can be directly expressed as:

Upload a three-person reference image and a three-person driving video to generate an AI video with synchronized actions for three characters in one click.