A5026500417- Optical Imaging and Spectroscopy Techniques
- Color Science and Applications
- Surgical Simulation and Training
- Retinal Imaging and Analysis
- Retinal Diseases and Treatments
- Industrial Vision Systems and Defect Detection
- Anatomy and Medical Technology
- Retinal and Optic Conditions
- Photoacoustic and Ultrasonic Imaging
- Color perception and design
- Augmented Reality Applications
- Therapeutic Uses of Natural Elements
- Pregnancy and preeclampsia studies
- Non-Invasive Vital Sign Monitoring
- Infrared Target Detection Methodologies
- Birth, Development, and Health
- Teleoperation and Haptic Systems
- Ocular and Laser Science Research
- X-ray Spectroscopy and Fluorescence Analysis
- Soft Robotics and Applications
- Iron oxide chemistry and applications
- Advanced optical system design
- 3D Surveying and Cultural Heritage
- Skin Protection and Aging
- Gaze Tracking and Assistive Technology
University of Eastern Finland
2015-2020
Kuopio University Hospital
2018
University of Silesia in Katowice
2018
Joensuu Science Park
2015
Pupillary responses have been for long linked to cognitive workload in numerous tasks. In this work, we investigate the role of pupil dilations context microsurgical training, handling microinstruments and suturing act particular. With an eye-tracker embedded on surgical microscope oculars, eleven medical participants repeated 12 sutures artificial skin under high magnification. A detailed analysis pupillary suture segments revealed that indeed varied not only according main but also...
Metallic nanoparticles are of great importance because their unique physical, chemical, antimicrobial, diagnostic, therapeutic, biomedical, sensing, biosensing, catalytic and optical properties. Detailed knowledge the atomic scale structure these materials is essential for understanding activities exploiting potential. This paper reports structural studies silica-supported silver, gold, palladium platinum using X-ray diffraction high-resolution transmission electron microscopy. Electron...
In this study, a LED-based spectrally tunable light source is introduced and used for camera spectral sensitivity characterization. Three different types containing 1-, 3-, 7- channels were selected tested under designed characterization instrument. The based on narrowband emitting diodes arranged in circles. system includes 46 from 380nm to 950nm, where due control board each channel controllable with 8 bit resolution. study was performed terms of the sensor final results are compared...
In general, a clinical practitioners use additional illuminators which help in visual examination and improve patient's diagnosis. Typical healthcare facility utilizes spectrally untunable broadband white light with luminance level being the only control available. Unfortunately, such illumination may not result best accessible visibility between features-of-interest. this study, we have developed presented research prototype allows to perform rapid exploration of various optimized...
Different optical methods for retinal imaging provide a significant improvement image analysis and help with data interpretation. The use of tunable light sources, which have been optimized contrast enhancement various features or lesions in images, could simplify the eye fundus examination through enhanced quality. In this study, we developed described research prototype consists spectrally source based on digital micromirror device is further coupled to camera. overall aim construction was...
In video-based training, clinicians practice and advance their skills on surgeries performed by colleagues themselves. Although microsurgeries are recorded daily, training centers lacking the workforce to manually annotate segments important for practitioners, such as instrument presence position. this work, we propose intelligent detection using Convolutional Neural Network (CNN) augment microsurgical training. The network was trained real videos which human annotators gathered a large...
Ophthalmologists check the condition of retina by visual examination for signs retinal disease such as diabetic retinopathy. Typical screening utilizes untunable broadband white light which may not give best possible visibility different features-of-interest. Red-free fundus photography applies a green filter in order to enhance blood circulation-related lesions and vascular abnormalities, but contrast-enhancement is limited blood-related features. In this study, enhancing contrast various...
Eye-hand coordination is a central skill in microsurgery. To develop efficacious microsurgical training environments to support development of eye-hand coordination, it important understand the workload associated with visuo-motor tasks We embedded an eye-tracker surgical microscope and collected eye-blink data 10 participants during microsuture task. Blink-rate was shown drop low levels compared resting-state rate be sensitive phases suture. discuss these findings light operator environments.
Distinct tissue types are differentiated based on the surgeon's knowledge and subjective visible information, typically assisted with white-light intraoperative imaging systems. Narrow-band (NBI) assists in identification enables automated classifiers, but many anatomical details moderate computational predictions cause bias. In particular, tissues' light-source-dependent optical characteristics, location, potentially hazardous microstructural changes such as peeling have been overlooked...
Numerous visualization tools are involved in surgeon's decision making during a procedure. Image-guided navigation systems such as computed tomography and magnetic resonance have become an integral part of many surgical procedures. In tumor removal microsurgeries, the distinction between tissue surrounding normal tissues often negligible, highly impacted by color contrast illumination operative field. To enhance making, we investigate use real-time spectral imaging operating room. Coupling...
Imaging is an integral part of most operating room procedures and used on a daily basis in the theater. Near real-time imaging during surgical can significantly enhance by providing information about anatomy pathological conditions. So far, customizable spectral-imaging systems were only rarely investigated, developed even less often installed operational settings, especially microsurgery. In this paper we describe design portable system for high throughput spectral characterization ex vivo...
Optic image-guidance systems enable minimally invasive (MIS) approaches in surgery. However, available MIS-techniques limits both ergonomics and field of view (FoV), which can be detrimental for anatomical awareness safe manipulation with tissues. Contemporary navigation techniques (i.e. neuronavigation) support spatial during these require time-consuming instrumentation lack real-time precision needed soft-tissue In this work, we utilize operative microscopes FoV as an unobtrusive source to...