Official PAct Diagnostics

Diagnostic evaluation of official PAct raw outputs on the GAPartNet non-PM 100-sample run. This page focuses on 2D segmentation dependence, joint-parameter quality, and internal articulated-structure quality.

Samples100

Mask corr0.524

Mean F10.370

Median F10.098

Overlap rate0.73

2D Segmentation

Mask part count correlates with generated part count.

0.5245

Joint Quality

Mean strict joint F1 remains low under favorable GT-derived masks.

0.3695

Internal Structure

High AABB overlap is frequent in generated part layouts.

0.7300

Visualizations

Mask segments vs generated parts

Mask segments vs generated parts

Visible movable evidence vs joint F1

Visible movable evidence vs joint F1

Joint F1 distribution

Joint F1 distribution

Axis error distribution

Axis error distribution

Internal structure issue rates

Internal structure issue rates

3D Diagnostics

Representative worst cases with the input image, synthetic 2D mask, official PAct generated part mesh, reference part mesh, and the official/core-OT structure proxy GLBs from the same source run. The proxy GLBs are AABB boxes used for joint/tree diagnostics, not full generated meshes.

electronics_104011

Printer · F1 0.000 · joints 4/27 · mask parts 28 -> nodes 5

electronics_104011 input image

electronics_104011 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

electronics_103972

Printer · F1 0.000 · joints 1/22 · mask parts 23 -> nodes 2

electronics_103972 input image

electronics_103972 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

electronics_103867

Printer · F1 0.000 · joints 2/17 · mask parts 18 -> nodes 3

electronics_103867 input image

electronics_103867 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

electronics_103978

Printer · F1 0.000 · joints 0/16 · mask parts 17 -> nodes 1

electronics_103978 input image

electronics_103978 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

small_appliances_103043

CoffeeMachine · F1 0.000 · joints 1/12 · mask parts 13 -> nodes 2

small_appliances_103043 input image

small_appliances_103043 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

electronics_104020

Printer · F1 0.000 · joints 0/9 · mask parts 10 -> nodes 1

electronics_104020 input image

electronics_104020 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

electronics_103988

Printer · F1 0.000 · joints 0/8 · mask parts 9 -> nodes 1

electronics_103988 input image

electronics_103988 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

electronics_103878

Printer · F1 0.000 · joints 1/8 · mask parts 9 -> nodes 3

electronics_103878 input image

electronics_103878 mask segments

Official PAct generated part mesh assembled from exported_arti_objects/*/ply/part_*.ply.

PAct mesh GLB reference mesh GLB official proxy GLB core OT proxy GLB

PAct Strengths

Low-joint or PM-like categories where the official pipeline is comparatively stable.

architectural_fixtures_8983

Door · F1 1.000 · joints 1/1 · mask parts 2

Official PAct generated part mesh.

PAct mesh GLB reference mesh GLB

large_furniture_45606

StorageFurniture · F1 1.000 · joints 1/1 · mask parts 2

Official PAct generated part mesh.

PAct mesh GLB reference mesh GLB

major_appliances_10905

Refrigerator · F1 1.000 · joints 1/1 · mask parts 2

Official PAct generated part mesh.

PAct mesh GLB reference mesh GLB

small_appliances_7236

Microwave · F1 1.000 · joints 1/1 · mask parts 2

Official PAct generated part mesh.

PAct mesh GLB reference mesh GLB

small_furniture_20985

Table · F1 1.000 · joints 1/1 · mask parts 2

Official PAct generated part mesh.

PAct mesh GLB reference mesh GLB

small_appliances_103074

CoffeeMachine · F1 1.000 · joints 3/3 · mask parts 4

Official PAct generated part mesh.

PAct mesh GLB reference mesh GLB

Worst Joint Cases

Sample	Object	F1	Pred joints	GT joints
electronics_104011	Printer	0.0000	4	27
electronics_103972	Printer	0.0000	1	22
electronics_103867	Printer	0.0000	2	17
electronics_103978	Printer	0.0000	0	16
small_appliances_103043	CoffeeMachine	0.0000	1	12
electronics_104020	Printer	0.0000	0	9
electronics_103988	Printer	0.0000	0	8
electronics_103878	Printer	0.0000	1	8

Largest Joint Count Errors

Sample	Object	Abs error	Pred joints	GT joints
electronics_104011	Printer	23	4	27
electronics_103972	Printer	21	1	22
electronics_103978	Printer	16	0	16
electronics_103867	Printer	15	2	17
small_appliances_103043	CoffeeMachine	11	1	12
electronics_104020	Printer	9	0	9
electronics_103988	Printer	8	0	8
major_appliances_103351	WashingMachine	8	2	10