Search Results - "Tsumura, Norimichi"

Non-contact method of blood pressure estimation using only facial video by Takahashi, Ryo, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…In this paper, we investigate the possibility of using image-based pulse transit time (iPTT) to estimate blood pressure using an RGB (red, green, blue)-camera…”
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Improved analysis for skin color separation based on independent component analysis by Tanaka, Satomi, Tsumura, Norimichi

“…The conventional skin color separation method suffers from the severe limitation that the input skin image must have no shading component and must have…”
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Measuring BRDF for curved surfaces based on parabolic reflection by Inoue, Shinichi, Igarashi, Yoshinori, Hoshi, Takeyuki, Tsumura, Norimichi

“…In this study, we introduce a measurement method for the bidirectional reflectance distribution function (BRDF) for curved surfaces. Nearly all BRDF…”
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Perceptual Translucency in 3D Printing Using Surface Texture by Nagasawa, Kazuki, Ono, Kamui, Arai, Wataru, Tsumura, Norimichi

“…We propose a method of reproducing perceptual translucency in three-dimensional printing. In contrast to most conventional methods, which reproduce the…”
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Continuous estimation of emotional change using multimodal responses from remotely measured biological information by Nagasawa, Takumi, Masui, Kenta, Doi, Hirokazu, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…Since emotions have an inordinate amount of influence on daily life behaviors such as perception, memory, and decision making, it has recently become necessary…”
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Artificial red blood cells increase large vessel wall damage and decrease surrounding dermal tissue damage in a rabbit auricle model after subsequent flashlamp‐pumped pulsed‐dye laser treatment by Shimanouchi, Kae, Rikihisa, Naoaki, Saito, Yoshiaki, Iuchi, Kaito, Tsumura, Norimichi, Sakai, Hiromi, Mitsukawa, Nobuyuki

“…Artificial red blood cells (i.e. hemoglobin [Hb] vesicles [Hb‐Vs]) function effectively as photosensitizers in flashlamp‐pumped pulsed‐dye laser (PDL)…”
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Monitoring respiratory state from near-infrared face video images by Ashida, Koichi, Hino, Yuta, Koopipat, Chawan, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…In this paper, we propose an algorithm for estimating respiratory state using near-infrared facial video images. Estimation of respiratory state is an…”
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Non-contact video-based estimation of heart rate variability spectrogram from hemoglobin composition by Fukunishi, Munenori, Kurita, Kouki, Yamamoto, Shoji, Tsumura, Norimichi

“…Non-contact HR measurement is becoming an active research area. Recently, remote photoplethysmography (rPPG) measurement based on simple skin optics model has…”
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Noise-Robust Pulse Wave Estimation from Near-Infrared Face Video Images Using the Wiener Estimation Method by Hino, Yuta, Ashida, Koichi, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…In this paper, we propose a noise-robust pulse wave estimation method from near-infrared face video images. Pulse wave estimation in a near-infrared…”
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Automatic Classification of Adult Males With and Without Autism Spectrum Disorder by Non-contact Measurement of Autonomic Nervous System Activation by Doi, Hirokazu, Tsumura, Norimichi, Kanai, Chieko, Masui, Kenta, Mitsuhashi, Ryota, Nagasawa, Takumi

“…People with autism spectrum disorder (ASD) exhibit atypicality in various domains of behavior. Previous psychophysiological studies have revealed an atypical…”
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Texture Management for Glossy Objects Using Tone Mapping by Hirose, Ikumi, Nagasawa, Kazuki, Tsumura, Norimichi, Yamamoto, Shoji

“…In this paper, we proposed a method for matching the color and glossiness of an object between different displays by using tone mapping. Since displays have…”
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Intrinsic Motivational States Can Be Classified by Non-Contact Measurement of Autonomic Nervous System Activation and Facial Expressions by Kawasaki, Sae, Ashida, Koichi, Nguyen, Vinh-Tiep, Ngo, Thanh Duc, Le, Duy-Dinh, Doi, Hirokazu, Tsumura, Norimichi

“…Motivation is a primary driver of goal-directed behavior. Therefore, the development of cost-effective and easily applicable systems to objectively quantify…”
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Stress levels estimation from facial video based on non-contact measurement of pulse wave by Iuchi, Kaito, Mitsuhashi, Ryota, Goto, Takashi, Matsubara, Akira, Hirayama, Takahiro, Hashizume, Hideki, Tsumura, Norimichi

“…In this paper, we propose a method to measure multiple stress levels using pulse wave extracted from a facial video. Stress is a crucial factor which triggers…”
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Development of a camera-based remote diagnostic system focused on color reproduction using color charts by Takahashi, Masato, Takahashi, Ryo, Morihara, Yasuhiro, Kin, Isseki, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…In this paper, we propose a color reproduction method using color charts to improve the color quality of a telemedicine system. Owing to the spread of…”
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Spectral-based estimation of components concentration in skin tissue layers with independence of shading via optical modeling of skin tissue by Iuchi, Kaito, Igarashi, Takanori, Ojima, Nobutoshi, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…Analysis of concentration of components in skin tissue, such as melanin, blood, oxygen saturation, is important in medical or cosmetic fields. Some researchers…”
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Relationship between sexual attractiveness and heart rate variability in heterosexual men observing photos and self-introduction movies of women by Ikisawa, Natsuki, Mitsuhashi, Ryota, Yamamoto, Shoji, Tsumura, Norimichi

“…In recent years, the problem of declining birthrate has occurred, and how to increase the working-age population has been discussed as a problem to be tackled…”
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Estimation of blood concentration at different skin depths using a spectroscopic camera by Lin, Mengyao, Iuchi, Kaito, Ono, Kamui, Ogawa-Ochiai, Keiko, Tsumura, Norimichi

“…In this research, we propose a method using a spectroscopic camera to estimate the concentration of blood in different layers of skin tissue. For the…”
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Comparison of noncontact camera-based methods for measuring pulse-rate of awake infants by Ogawa-Ochiai, Keiko, Kiyokawa, Takuma, Kiyomitsu, Kaoru, Bednarik, Roman, Mitani, Yusuke, Tsumura, Norimichi

“…Noncontact camera-based methods for measuring the pulse rate have been introduced in recent years. However, in previous studies, pulse-rate measurement…”
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Creating a visualization system for changes in facial shape and color by Koike, Reimei, Nomura, Ikumi, Ogawa-Ochiai, Keiko, Tsumura, Norimichi, Rikihisa, Naoki

“…During the course of treatment in plastic surgery and dermatology, especially aesthetic surgery, it is essential to regularly observe and record any appearance…”
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High-throughput label-free image cytometry and image-based classification of live Euglena gracilis by Lei, Cheng, Ito, Takuro, Ugawa, Masashi, Nozawa, Taisuke, Iwata, Osamu, Maki, Masanori, Okada, Genki, Kobayashi, Hirofumi, Sun, Xinlei, Tiamsak, Pimsiri, Tsumura, Norimichi, Suzuki, Kengo, Di Carlo, Dino, Ozeki, Yasuyuki, Goda, Keisuke

“…We demonstrate high-throughput label-free single-cell image cytometry and image-based classification of Euglena gracilis (a microalgal species) under different…”
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