Rebuttal summary

General response

We thank all reviewers. All four recommend acceptance (weak accept). Most questions ask for analyses of results we already

have, plus a few new runs. New in this response:

  1. Retrieval hit rate and training distribution for 100 / 200 / 400 s (btN3). Longer spans add *available* first visits details

(83% -> 91% -> 96% of scored chunks have one in range); given one is available, top-6 retrieves it about 90% of the time at every span.

  1. Camera-following on all five rollout seeds, with CaR, and the return comparison stratified by realized yaw error (btN3). details

Among returns the camera actually makes (error <= 10 deg), CaR is within seed noise of Memorizon 100 s / 400 s and 0.06 Revisit below 200 s; the other open models stay far below.

We report this plainly and soften the cross-system claim accordingly.

  1. Cost (m2mq, MjTC). Pose scoring takes 32 ms per chunk at 400 s of history on one CPU thread, about 1% of the 3.2 s it takes to generate a chunk; chunk latency is flat from 10 s to 400 s of history (3.18 -> 3.19 s) and peak allocated GPU memory is identical to a sliding window (22.6 GB). details
  2. Bank-content ablation on the 200 s and 400 s models (no bank / random / foreign bank: Gain falls to about 0) and independent training seeds for 200 s and 400 s [PENDING: G2], and bank noise for the 400 s quality drop [PENDING: G1]. details
  3. Zero-shot on real capture (KgbX, m2mq): 20 DL3DV-10K scenes from a single real first frame and the scene's own camera path; path following holds (correlation 0.79 / 0.73), pixel fidelity to the real frames is not claimed. Videos on the supplementary page. details
  4. Occlusion of retrieved frames (MjTC), with monocular depth: 24-49% of the in-frustum content of retrieved frames is occluded versus 38-65% for random frames passing the same frustum test. details
  5. Wording fixes: "bounded by k x K" in the abstract; the 400 s explanation is now a hypothesis.

Responses by reviewer

Reviewer btN3Retrieval hit rate, bank-content ablation, camera following, seedsReviewer m2mqNovelty, cost, evaluation data, real videoReviewer MjTCBank noise, occlusion, scoring costReviewer KgbXReal-world video, consistency vs qualitySupplementary videos20 real-capture scenes, real vs generated