The other collection contains cropped versions that are 512 by 512. There are 2 different collections provided, one contains the base images as they came out of openpose (1920 by 1080 or 1280 by 720 size depending on the animation). The images were generated by rotating animated 3d models and using openpose to generate the openpose bones for the animations from different angles. Extract the zip file containing the poses and load the intended pose in the ControlNet extension and set preprocessor to none (if you are using Automatic1111) or provide the loaded image as input to the ControlNetApply node (if you are using ComfyUI). The poses are intended for use with ControlNet.
Each folder corresponds to a direction (the direction that the character is running towards in the animation). Inside the zip file, there are 8 folders. The collection contains openpose poses from 8 different angles for 4 different animations, a normal running animation, a normal walking animation, a girlish running animation, and a woman walking animation. This is a collection of openpose poses for running and walking.