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A pose estimation approach for discarded stacked smartphones recycling: Based on instance segmentation and point
Jie Li1, XueJun Hu1, Hangbin Zheng1
1DongHua University, Department of Mechanical Engineering, ShangHai, 201600, China.
Waste Management (New York, N.Y.)
|January 12, 2025
Summary
Automating smartphone recycling is crucial due to e-waste. This study introduces a novel pose estimation method for robotic grasping of stacked phones, improving efficiency and reducing manual labor in recycling processes.
Area of Science:
- Robotics and Automation
- Computer Vision
- Environmental Engineering
Background:
- The growing volume of end-of-life smartphones presents significant recycling challenges.
- Current manual disassembly processes are inefficient, labor-intensive, and environmentally problematic.
- Complex scenarios like stacking and occlusion hinder automated recycling of discarded smartphones.
Purpose of the Study:
- To develop an automated pose estimation method for stacked, discarded smartphones.
- To enhance the precision and efficiency of robotic grasping in e-waste recycling.
- To reduce manual intervention and environmental impact in smartphone disassembly.
Main Methods:
- Integration of an improved Mask R-CNN instance segmentation model with Iterative Closest Point (ICP) point cloud registration.
- Accurate segmentation of stacked smartphones using combined real and synthetic datasets.
- Development of a pose recognition interactive system for data visualization and dynamic interaction.
Main Results:
- Effective segmentation of stacked smartphones was achieved using the proposed method.
- Accurate pose information was extracted to guide robotic grasping actions.
- Transfer learning utilizing synthetic and real-world data demonstrated significant effectiveness.
Conclusions:
- The proposed pose estimation method significantly improves automation and efficiency in end-of-life smartphone recycling.
- The integration of advanced computer vision and point cloud registration offers a viable solution for complex disassembly tasks.
- This research provides valuable insights and technical solutions for intelligent e-waste management.

