AIMC Topic: Optical Devices

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Non-orthogonal one-step calibration method for robotized transcranial magnetic stimulation.

Biomedical engineering online Oct 1, 2018
BACKGROUND: Robotized transcranial magnetic stimulation (TMS) combines the benefits of neuro-navigation with automation and provides a precision brain stimulation method. Since the coil will normally remain unmounted between different clinical uses, ...
Transcranial Magnetic Stimulation Optical Devices Calibration Algorithms Robotics
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Infrared actuation-induced simultaneous reconfiguration of surface color and morphology for soft robotics.

Scientific reports Dec 13, 2017
Cephalopods, such as cuttlefish, demonstrate remarkable adaptability to the coloration and texture of their surroundings by modulating their skin color and surface morphology simultaneously, for the purpose of adaptive camouflage and signal communica...
Optical Devices Cephalopoda Infrared Rays Pigmentation Elastomers Equipment Design Nanocomposites Polystyrenes Animals Biomimetics Robotics
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The potential of computer vision, optical backscattering parameters and artificial neural network modelling in monitoring the shrinkage of sweet potato (Ipomoea batatas L.) during drying.

Journal of the science of food and agriculture Sep 11, 2017
BACKGROUND: Drying is a method used to preserve agricultural crops. During the drying of products with high moisture content, structural changes in shape, volume, area, density and porosity occur. These changes could affect the final quality of dried...
Desiccation Scattering, Radiation Ipomoea batatas Light Optical Devices Plant Tubers Lasers Neural Networks, Computer Temperature Computers
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A vision-based system for fast and accurate laser scanning in robot-assisted phonomicrosurgery.

International journal of computer assisted radiology and surgery Jun 3, 2014
PURPOSE: Surgical quality in phonomicrosurgery can be improved by open-loop laser control (e.g., high-speed scanning capabilities) with a robust and accurate closed-loop visual servoing systems. A new vision-based system for laser scanning control du...
Surgery, Computer-Assisted Lasers Calibration Optical Devices Humans Robotics Microsurgery
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Multi-view vision system for laparoscopy surgery.

International journal of computer assisted radiology and surgery May 14, 2014
PURPOSE: A global endoscopic view of the surgical field could help avoid complications such as perforation of occluded organs and may reduce the endoscope displacements and also the usual time of laparoscopic procedure using a conventional endoscopy ...
Robotics Laparoscopy Humans Endoscopes Optical Devices
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[Uncalibrated Positioning Method for Puncture Robots Based on Optical Navigation].

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Nov 30, 2023
Robotic puncture system has been widely used in modern minimally invasive surgery, which usually uses hand-eye calibration to calculate the spatial relationship between the robot and the optical tracking system. However, the hand-eye calibration proc...
Robotics Calibration Optical Devices Minimally Invasive Surgical Procedures Robotic Surgical Procedures
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Tunable grating surfaces with high diffractive efficiency optimized by deep neural networks.

Optics letters Sep 15, 2022
High diffractive efficiency gratings, as a core component in optics, can engineer light transport and separation. This Letter predicts a grating surface with high diffractive efficiency within the visible light wave band with the aid of deep neural n...
Optical Devices Neural Networks, Computer Light
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Efficient optical reservoir computing for parallel data processing.

Optics letters Aug 1, 2022
We propose and experimentally demonstrate an optical reservoir computing system in free space, using second-harmonic generation for nonlinear kernel functions and a scattering medium to enhance reservoir nodes interconnection. We test it for one-step...
Neural Networks, Computer Algorithms Optical Devices
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[Pose Testing Method for Medical Service Robots Based on Vision System].

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Mar 30, 2022
Aiming at the medical service robot used in the indoor environment, this study proposes a method to test the pose accuracy of its working surface based on the binocular vision system. This method uses a binocular vision coordinate system to measure t...
Vision, Binocular Robotics Optical Devices
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Learning spectral initialization for phase retrieval via deep neural networks.

Applied optics Mar 20, 2022
Phase retrieval (PR) arises from the lack of phase information in the measures recorded by optical sensors. Phase masks that modulate the optical field and reduce ambiguities in the PR problem by producing redundancy in coded diffraction patterns (CD...
Neural Networks, Computer Optical Devices Computer Simulation Visual Fields Algorithms
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