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A skin-conformal rigid-in-soft array-based imaging system
Xiaoyun Yuan1,2, Jianing Zhang1, Youhai Liu1
1Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China.
Nature Communications
|June 16, 2026
Summary
SkinSight is a new skin-conformal imaging system that provides high-resolution 3D perception for flexible robots and wearables. This innovative technology enables robust, calibration-free visual sensing even under complex deformations.
Area of Science:
- Robotics and Artificial Intelligence
- Materials Science and Engineering
- Computer Vision and Imaging
Background:
- Traditional array-based imaging systems lack flexibility, limiting their use with dynamic, non-rigid hosts like human skin or soft robots.
- Existing flexible visual sensor arrays have restricted pixel density and resolution due to fabrication constraints.
Purpose of the Study:
- To develop a skin-conformal imaging system, SkinSight, that achieves high-resolution imaging under complex mechanical deformations.
- To overcome the trade-off between compliance and resolution in flexible imaging systems.
- To enable robust, calibration-free 3D visual perception for augmented human and robotic capabilities.
Main Methods:
- Implemented a hybrid "rigid-in-soft" architecture integrating miniaturized imagers with stretchable interconnects.
- Utilized large-scale pre-trained vision transformers for end-to-end geometric inference to address processing challenges from continuous deformation.
- Developed a deformation-adaptive framework that does not rely on rigid structural priors.
Main Results:
- SkinSight achieves stable, high-resolution imaging on skin-conformal surfaces undergoing complex deformations.
- Demonstrated seamless integration with human skin, enabling a palm to act as a sensory interface.
- Successfully performed calibration-free 3D visual perception in dynamic environments.
Conclusions:
- SkinSight overcomes the limitations of rigid and flexible imaging systems, offering a high-resolution, compliant solution.
- The system augments perceptual capabilities for both humans and robots, showing potential for advanced wearables and embodied AI.
- This technology paves the way for next-generation human-computer interfaces and intelligent robotic systems.
