A5072722207- Advanced Steganography and Watermarking Techniques
- Digital Media Forensic Detection
- Chaos-based Image/Signal Encryption
- AI in cancer detection
- Radiomics and Machine Learning in Medical Imaging
- COVID-19 diagnosis using AI
- Advanced Data Compression Techniques
- Digital Imaging for Blood Diseases
- Advanced Image and Video Retrieval Techniques
- Multimedia Communication and Technology
- Cell Image Analysis Techniques
- IPv6, Mobility, Handover, Networks, Security
- EEG and Brain-Computer Interfaces
- Image and Video Stabilization
- Music and Audio Processing
- Vehicle License Plate Recognition
- Neural dynamics and brain function
- Software Engineering Techniques and Practices
- Ethics in Clinical Research
- Advanced Software Engineering Methodologies
- Video Coding and Compression Technologies
- Functional Brain Connectivity Studies
- Human Mobility and Location-Based Analysis
- Law, AI, and Intellectual Property
- Digital Rights Management and Security
University of Oulu
2011-2024
Oulu University Hospital
2016
COVID-19 is a rapidly spreading viral disease and has affected over 100 countries worldwide. The numbers of casualties cases infection have escalated particularly in with weakened healthcare systems. Recently, reverse transcription-polymerase chain reaction (RT-PCR) the test choice for diagnosing COVID-19. However, current evidence suggests that infected patients are mostly stimulated from lung after coming contact this virus. Therefore, chest X-ray (i.e., radiography) CT can be surrogate...
Recent advances in technology are changing the way how everyday activities performed. Technologies traffic domain provide diverse instruments of gathering and analysing data for more fuel-efficient, safe, convenient travelling both drivers passengers. In this article, we propose a reference architecture context-aware driving assistant system. Moreover, exemplify with real prototype assistance system called Driving coach. This collects, fuses analyses information, like digital map, weather,...
Medical imaging provides the means for diagnosing many of medical phenomena currently studied in clinical medicine and pathology. The variations color intensity stained histological slides affect quantitative analysis histopathological images. Moreover, stain normalization utilizing classification pixels into different components is challenging. staining also suffers from variability, which complicates automatization tissue area segmentation with whole slide We have developed a Retinex model...
In the recent decade, medical image registration and fusion process has emerged as an effective application to follow up diseases decide necessary therapies based on conditions of patient. For many considerable diagnostic analyses, it is common practice assess two or more different histological slides images from one tissue sample. A specific area analysis modalities requires overlay distinguish positions in sample that are organized at a similar coordinate both images. particular cases,...
A novel algorithm for embedding a spread-spectrum based watermark into uncompressed, raw audio sequences is presented. The scheme takes advantage of temporal masking phenomenon in the human auditory system (HAS) order to embed data below threshold signal. Detection done by blind detection, without using original audio. As watermarking and extraction are performed domain, transformations from frequency domain not performed, neither on nor part proposed scheme, resulting calculation simplicity...
The screen-cam process, which is taking pictures of the content displayed on a screen with mobile phones or cameras, one main ways that image information leaked. However, traditional watermarking methods are not resilient to processes severe distortion. In this paper, robust scheme feature-based synchronization method proposed. First, distortions caused by process investigated. These can be summarized into five categories linear distortion, gamma tweaking, geometric noise attack, and...
To achieve watermark synchronization from an image with perspective distortion is a challenge. This paper proposes screen-cam robust and blind watermarking scheme for tile satellite images, which means we do not need any user interaction or additional information in detection. this, at the embedding side, divide tiles into message tiles, propose discrete Fourier transform (DFT) based method to cope quality degradation caused by process. At extraction on idea of template matching, first use...
This paper proposes a joint encryption and screen-cam robust watermarking scheme. method combines the advantages of smartphone, technologies, thereby achieving watermark extraction with partial decryption tracking leakage from sneak shots. We design dual algorithm to achieve detection both encrypted decrypted images. First, is embedded in discrete Fourier transform (DFT) domain enable tracking. Then, second generated based on QR (Quick response) code encoding inverse DFT high capacity error...
Recent studies pinpoint visually cued networks of avalanches with MEG/EEG data. Co-activation pattern (CAP) analysis can be used to detect single brain volume activity profiles and hemodynamic fingerprints neuronal as sudden high signal peaks in classical fMRI In this study, we aimed dynamic patterns spreads the use ultrafast MR encephalography (MREG). MREG achieves 10 Hz whole sampling, allowing estimation spatial spread an avalanche, even inherent delay BOLD signal. We developed a novel...
Submucosal invasion depth is a significant prognostic factor when assessing lymph node metastasis and cancer itself to plan proper treatment for the patient. Conventionally, oncologists measure by hand which laborious, subjective, time-consuming process. The manual pathological examination measuring accurate carcinoma cell with considerable inter-observer intra-observer variations still challenging. increasing use of medical imaging artificial intelligence reveals role in clinical medicine...
A method and implementation are presented to achieve a thousand fold speed-up for seeking of large files in commonly used compressed neuroimaging data format NIfTI. Such technologies not currently available this research field while they would make the everyday work hundreds researchers experts much smoother faster. The includes creation novel index structure order speed-up. With random seek simulations, we demonstrate that over hundred up even five can be reached compared implementations....