Co-Segmentation of 3D Model Clusters Based on Point Cloud Sparse Coding

Jun Yang; Donghao Li

doi:10.3788/LOP57.201510

Journals >Laser & Optoelectronics Progress >Volume 57 >Issue 20 >Page 201510 > Article

Laser & Optoelectronics Progress
Vol. 57, Issue 20, 201510 (2020)

Co-Segmentation of 3D Model Clusters Based on Point Cloud Sparse Coding

Jun Yang^1、* and Donghao Li²

Author Affiliations

¹School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China

²School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China

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DOI: 10.3788/LOP57.201510 Cite this Article Set citation alerts

Jun Yang, Donghao Li. Co-Segmentation of 3D Model Clusters Based on Point Cloud Sparse Coding[J]. Laser & Optoelectronics Progress, 2020, 57(20): 201510 Copy Citation Text

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Fig. 1. Structure of co-segmentation network for point cloud sparse coding

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Fig. 2. Process for construction of model dictionary matrix

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Fig. 3. Segmentation results of point cloud models. (a) Chair; (b) lamp; (c) guitar; (d) table; (e) car; (f) plane

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Algorithm	mIoU	pIoU /%
PointNet^[18]	80.4	83.6
Tags2Parts^[25]	79.5	83.1
PointNet++^[27]	81.9	85.1
Ours	80.6	85.7

Table 1. Segmentation accuracy of each algorithm

Algorithm	Airplane	Bag	Cap	Car	Chair	Earphone	Guitar	Knife
PointNet^[18]	83.2	80.4	86.1	76.6	89.5	70.8	91.2	85.3
Tags2Parts^[25]	81.4	83.2	75.3	74.8	89.0	71.7	89.2	84.2
PointNet++^[27]	82.4	79.0	87.7	77.3	90.8	71.8	91.0	85.9
Ours	81.9	72.3	77.8	76.7	88.4	76.6	91.1	85.4

Algorithm	Lamp	Laptop	Motorbike	Mug	Pistol	Rocket	Skateboard	Table
PointNet^[18]	80.4	95.3	64.5	91.8	81.3	61.3	72.8	80.4
Tags2Parts^[25]	75.9	93.7	69.3	94.2	81.4	54.3	73.4	80.9
PointNet++^[27]	83.7	95.3	71.6	94.1	81.3	58.7	76.4	82.6
Ours	77.7	95.5	65.0	91.4	80.6	58.9	80.1	89.8

Table 2. [in Chinese]

Method	Airplane	Bag	Cap	Car	Chair	Earphone	Guitar	Knife
Label	81.9	72.3	77.8	76.7	88.4	76.6	91.1	85.4
Atomic index	80.4	56.1	62.6	75.8	87.8	61.9	91.1	84.5

Method	Lamp	Laptop	Motorbike	Mug	Pistol	Rocket	Skateboard	Table
Label	77.7	95.5	65.0	91.4	80.6	58.9	80.1	89.8
Atomic index	41.1	94.6	63.2	90.3	80.4	50.3	76.5	78.0

Table 3. [in Chinese]

Algorithm	Time /ms
PointNet^[18]	25.3
Tags2Parts^[25]	71.4
PointNet++^[27]	163.2
Ours	40.7

Table 4. Segmentation time of each algorithm

Jun Yang, Donghao Li. Co-Segmentation of 3D Model Clusters Based on Point Cloud Sparse Coding[J]. Laser & Optoelectronics Progress, 2020, 57(20): 201510

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