Robotics
LeRobot
Safetensors
act
imitation-learning

pickdown_bottle1_act โ€” 1๋ฒˆ ์‹œ์•ฝํ†ต ๋‚ด๋ ค๋†“๊ธฐ

OMX "1๋ฒˆ ์‹œ์•ฝํ†ต ๋‚ด๋ ค๋†“๊ธฐ" ํƒœ์Šคํฌ์šฉ ACT ์ •์ฑ… ๋ชจ์Œ. ํ•™์Šต ์กฐ๊ฑด๋ณ„ ๋ชจ๋ธ์ด ํด๋”๋กœ ๋‚˜๋‰˜์–ด ์žˆ๊ณ , ๊ฐ ํด๋” ์•ˆ์— ์ฒดํฌํฌ์ธํŠธ step๋ณ„ ํ•˜์œ„ ํด๋”๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.

๋ฐ์ดํ„ฐ

  • gamzadole/ARMCHEMIST_PICKDOWN_BOTTLE1 โ€” 25 ์—ํ”ผ์†Œ๋“œ ร— 15์ดˆ, 30fps, 11,266 ํ”„๋ ˆ์ž„
  • ์ž…๋ ฅ/์ถœ๋ ฅ: ์นด๋ฉ”๋ผ 3๋Œ€ (cam_head, cam_head_depth, cam_wrist), state/action 6์ฐจ์› (์™ผํŒ” joint1โ€“5 + gripper)

๋ชจ๋ธ

๋‘ ๋ชจ๋ธ์€ fps(์™€ ๊ทธ์— ๋งž์ถ˜ chunk ๊ธธ์ด)๋งŒ ๋‹ค๋ฆ…๋‹ˆ๋‹ค. ๋ฐ์ดํ„ฐ๊ฐ€ ์ž‘์•„์„œ(24 ์—ํ”ผ์†Œ๋“œ) epoch๊ฐ€ ๋งŽ์œผ๋‹ˆ 20k~50k๋ฅผ ๋จผ์ € ์‹œํ—˜ํ•ด ๋ณด๊ธธ ๊ถŒํ•ฉ๋‹ˆ๋‹ค.

ํด๋” fps ์ œ์™ธ ์—ํ”ผ์†Œ๋“œ ํ•™์Šต ๋ฐ์ดํ„ฐ chunk / n_action_steps epoch ์ตœ์ข… loss
15fps/ 15 23 24 ep / 5,415 ํ”„๋ ˆ์ž„ 40 / 10 148 0.031
30fps/ 30 23 24 ep / 10,815 ํ”„๋ ˆ์ž„ 80 / 20 74 0.033
pickdown_bottle1_act/
โ”œโ”€โ”€ 15fps/  (100k, 070k, 050k, 030k, 020k)
โ”œโ”€โ”€ 30fps/  (100k, 070k, 050k, 030k, 020k)

๊ฐ ์ฒดํฌํฌ์ธํŠธ ํด๋”(์˜ˆ: 15fps/100k/)์—๋Š” config.json, model.safetensors, train_config.json์ด ๋“ค์–ด ์žˆ์Šต๋‹ˆ๋‹ค.

๋ถˆ๋Ÿฌ์˜ค๊ธฐ

์ด LeRobot ๋ฒ„์ „์€ repo ์•ˆ์˜ ํ•˜์œ„ ํด๋”๋ฅผ --policy.path๋กœ ๋ฐ”๋กœ ์ง€์ •ํ•  ์ˆ˜ ์—†์–ด์„œ, ํ•„์š”ํ•œ ํด๋”๋งŒ ๋ฐ›์•„์„œ ๋กœ์ปฌ ๊ฒฝ๋กœ๋กœ ์ง€์ •ํ•ฉ๋‹ˆ๋‹ค.

hf download gc22-shin/pickdown_bottle1_act --include "15fps/100k/*" --local-dir ckpt/pickdown_bottle1_act
--policy.path=ckpt/pickdown_bottle1_act/15fps/100k

์ถ”๋ก  fps๋ฅผ ํ•™์Šต๊ณผ ๋งž์ถฐ์•ผ ํ•ฉ๋‹ˆ๋‹ค. 15fps ๋ชจ๋ธ์€ 15fps๋กœ, 30fps ๋ชจ๋ธ์€ 30fps๋กœ ๋Œ๋ฆฌ์„ธ์š”. chunk ๊ธธ์ด๊ฐ€ ํ”„๋ ˆ์ž„ ๋‹จ์œ„๋ผ fps๊ฐ€ ๋‹ค๋ฅด๋ฉด ๋™์ž‘ ์†๋„๊ฐ€ ๋‹ฌ๋ผ์ง‘๋‹ˆ๋‹ค.

15fps ๋ชจ๋ธ์€ ์›๋ณธ(30fps)์—์„œ ์ง์ˆ˜ ํ”„๋ ˆ์ž„๋งŒ ๋‚จ๊ฒจ ํ•™์Šตํ–ˆ์Šต๋‹ˆ๋‹ค. ์›๋ณธ ์นด๋ฉ”๋ผ๊ฐ€ ์‹ค์ œ๋กœ๋Š” 15Hz๋ผ 30fps ์˜์ƒ์€ ๋‘ ํ”„๋ ˆ์ž„๋งˆ๋‹ค ๊ฐ™์€ ์˜์ƒ์ด ๋ฐ˜๋ณต๋˜๋Š”๋ฐ, ์ง์ˆ˜ ํ”„๋ ˆ์ž„๋งŒ ์“ฐ๋ฉด ๋ณต์ œ ํ”„๋ ˆ์ž„์ด ์—†์–ด์ง‘๋‹ˆ๋‹ค.

๊ณตํ†ต ํ•™์Šต ์„ค์ •

ํ•ญ๋ชฉ ๊ฐ’
์ •์ฑ… ACT (resnet18 ImageNet backbone, dim_model 512, heads 8, enc 4 / dec 1)
VAE latent 32, kl_weight 10
lr / backbone lr / weight decay 1e-5 / 1e-5 / 1e-4
batch 8, AMP on, seed 1000, temporal ensemble ์‚ฌ์šฉ ์•ˆ ํ•จ
chunk ์‹œ๊ฐ„ ๊ธฐ์ค€์œผ๋กœ ๋งž์ถค: 2.7์ดˆ ์˜ˆ์ธก, 0.67์ดˆ๋งˆ๋‹ค ์žฌ์ถ”๋ก  (15fps: chunk 40 / n_action_steps 10, 30fps: 80 / 20)

LeRobot commit 989f3d0, RTX 3080 1์žฅ.

ACT๋Š” ํ•™์Šต loss๊ฐ€ ๊ฐ€์žฅ ๋‚ฎ์€ ์ฒดํฌํฌ์ธํŠธ๊ฐ€ ์‹ค์ œ๋กœ ๊ฐ€์žฅ ์ž˜ํ•˜์ง€๋Š” ์•Š๋Š” ๊ฒฝ์šฐ๊ฐ€ ๋งŽ์œผ๋‹ˆ, ์‹ค์ œ ๋กœ๋ด‡์—์„œ ๋น„๊ตํ•ด์„œ ๊ณ ๋ฅด์„ธ์š”.

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