Shiki42/piperx-sortletter-0905-53ep-rand-retime

PiperX Sort Letters - Uniform Timing Retime

Source: https://huggingface.co/datasets/Shiki42/piperx-sortletter-0905-53ep-rgb-trimed/tree/1f14eb1d2a68891a1754650575c751ac50c88466

This dataset contains 108 counterfactually retimed episodes selected from a 216-point uniform schedule grid. It contains the even global grid indices (0, 2, ..., 214). The full grid position is u = grid_index / 216.

At u=0 the left arm completes immediately before the right arm starts. Moving rightward on the grid continuously advances the right arm relative to the left arm; the omitted u=1 endpoint would place the left arm immediately after the right arm. No random delay is used.

No new both-arms-idle gap is ever inserted. Every output starts when the first arm starts and ends when the last arm finishes. A waiting or finished arm holds its boundary pose and wrist frame. Per-frame boolean labels are: retime.leftidle, retime.rightidle, and retime.overlap. Per-episode metadata records the exact frame and second intervals for each arm's idle periods and for overlap. Both-idle frames are required to be zero.

The left wrist stream follows the left-arm source trajectory and the right wrist stream follows the right-arm source trajectory. The top view is counterfactual: its left half uses the left-arm source time and its right half uses the right-arm source time. It is not a physically captured simultaneous world observation.

The source repo name says 53ep, but the pinned payload contains 54 internally consistent episodes. The complete four-samples-per-source grid therefore has 216 points; this dataset contains one alternating half with 108 episodes.