PAct Stage1 Bad-Case Fine-Tune Compare

Official PAct baseline compared with a Stage1-only cache fine-tuned for 120 SGD steps on all 16 bad-case samples, including examples with up to 28 GT parts. The network architecture is unchanged.

Total part delta+0
Total joint delta+1

sample

electronics_103863

GT 3/2 Official 2/1 Stage1 2/1 Delta +0/+0
PAct RGB input
PAct inference input RGB
PAct mask overlay
mask overlay

这里展示的是实际送入 PAct 的 view0 RGB/mask；下面保留同一样本预处理产生的 20 个训练渲染视角，用来核对视角、裁剪、材质和部件可见性。

render view 00
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render view 01
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render view 02
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render view 03
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render view 04
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render view 05
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render view 06
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render view 07
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render view 08
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render view 09
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render view 10
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render view 11
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render view 12
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render view 13
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render view 14
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render view 15
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render view 16
16
render view 17
17
render view 18
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render view 19
19

sample

electronics_104011

GT 28/27 Official 2/1 Stage1 2/1 Delta +0/+0
PAct RGB input
PAct inference input RGB
PAct mask overlay
mask overlay

这里展示的是实际送入 PAct 的 view0 RGB/mask；下面保留同一样本预处理产生的 20 个训练渲染视角，用来核对视角、裁剪、材质和部件可见性。

render view 00
00
render view 01
01
render view 02
02
render view 03
03
render view 04
04
render view 05
05
render view 06
06
render view 07
07
render view 08
08
render view 09
09
render view 10
10
render view 11
11
render view 12
12
render view 13
13
render view 14
14
render view 15
15
render view 16
16
render view 17
17
render view 18
18
render view 19
19

sample

household_items_102201

GT 4/3 Official 3/0 Stage1 3/1 Delta +0/+1
PAct RGB input
PAct inference input RGB
PAct mask overlay
mask overlay

这里展示的是实际送入 PAct 的 view0 RGB/mask；下面保留同一样本预处理产生的 20 个训练渲染视角，用来核对视角、裁剪、材质和部件可见性。

render view 00
00
render view 01
01
render view 02
02
render view 03
03
render view 04
04
render view 05
05
render view 06
06
render view 07
07
render view 08
08
render view 09
09
render view 10
10
render view 11
11
render view 12
12
render view 13
13
render view 14
14
render view 15
15
render view 16
16
render view 17
17
render view 18
18
render view 19
19