RMBench-preset-gemini

RMBench training episodes (9 tasks, 450 episodes, 30 fps) with dense high-level labels produced by the TACOR offline annotator: Gemini 3.7 Flash reads each whole episode as one video clip (one sample every 25 frames) and labels every sampled frame given only the task's subtask preset (the ordered list of subtask labels, no further task-specific guidance). Each tick carries the current subtask, the running textual memory and the visual-memory operations (keyframe store / retrieval) that the online high-level planner reproduces at inference time. The companion dataset RMBench-taco-gemini carries the same episodes labelled under the full task-specific context.

Layout

<task>/                      LeRobot v2.1 dataset of one task (data/, meta/, videos/)
  videos/chunk-000/observation.image.head_camera/     head camera
  videos/chunk-000/observation.image.left_wrist/      left wrist camera
  videos/chunk-000/observation.image.right_wrist/     right wrist camera
  videos/chunk-000/observation.image.keyframe/        the retrieved keyframe shown to the low-level policy at each frame
  meta/dense_annotation_map.json                      per-episode stored / retrieved frames and subtask spans
retrieval_map.json           per task and episode: keyframe frame + frames at which it is retrieved
annotations/<task>/ep%06d.jsonl   the raw per-tick labels (see below)

Per-frame features: observation.state, action, subtask (the label of the frame), subtask_end, the three camera views and the keyframe slot. The subtask label changes at the tick boundaries of the annotation (tick = 25 frames).

Tasks

task	episodes
battery_try	50
blocks_ranking_try	50
cover_blocks	50
observe_and_pickup	50
press_button	50
put_back_block	50
rearrange_blocks	50
swap_T	50
swap_blocks	50

Annotation rows

One JSON object per tick (decision_frame = 0, 25, 50, ...):

{"episode_index": 1, "decision_frame": 0, "subtask": "Pick up both T-blocks.",
 "updated_memory": "Initial state: red on left, blue on right.", "is_keyframe": true,
 "caption": "Initial positions of red and blue T-blocks", "rag_query": ""}

subtask is one of the preset labels; updated_memory is the textual memory the planner carries; is_keyframe / caption store the current frame in the visual-memory bank under that caption; rag_query retrieves the stored frame whose caption matches. The prompts, the subtask presets and the annotator are part of the TACOR code release.