Browsing NTNU Open by Author "Kohtala, Sampsa Matias Ilmari"
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A Combined Photoplethysmography and Force Sensor Prototype for Improved Pulse Waveform Analysis
Solberg, Fredrik Samdal; Kohtala, Sampsa Matias Ilmari; Vestad, Håvard Nitter; Steinert, Ralf Martin (Chapter, 2019)Pulse detection has in recent years received extensive attention in physiological health monitoring, and continuous blood pressure estimation models based on pulse waveform analysis have shown great promises. Two widely ... -
Augmenting Physical Prototype Activities in Early-Stage Product Development
Kohtala, Sampsa Matias Ilmari; Erichsen, Jorgen Andreas Bogen; Sjöman, Heikki; Steinert, Martin (Chapter, 2018)Prototyping in the early-stage of product development is widely used for exploring solutions and generating knowledge. Prototypes in the form of tangible artefacts have many advantages, including expressing and transferring ... -
Bringing Reality Back to Virtual Reality - A Collaborative Tool for Multidisciplinary Teams
Kohtala, Sampsa Matias Ilmari; Kaland, Thomas Colin Guo; Jacobsen, Live; Aalto, Pasi Olav; Steinert, Martin (Chapter, 2020)The use of Virtual Reality (VR) supports larger strategic goals in the industry, including the geographically diverse working markets, large-scale projects and increased collaboration, both locally and globally. At the ... -
Facing the FACS—Using AI to Evaluate and Control Facial Action Units in Humanoid Robot Face Development
Auflem, Marius; Kohtala, Sampsa Matias Ilmari; Jung, Malte; Steinert, Ralf Martin (Peer reviewed; Journal article, 2022)This paper presents a new approach for evaluating and controlling expressive humanoid robotic faces using open-source computer vision and machine learning methods. Existing research in Human-Robot Interaction lacks flexible ... -
Methods for Augmenting Physical Prototype Activities in Early Stage Product Development - Development of a system designed to accelerate prototyping and learning in the early stages of product development.
Kohtala, Sampsa Matias Ilmari (Master thesis, 2018)In product development and engineering design research, discoveries have revealed the benefits of using prototypes and prototyping to increase the probability of successfully making new innovative and novel products. With ...