| 1. |
- Abbafati, Cristiana, et al.
(författare)
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- 2020
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Tidskriftsartikel (refereegranskat)
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| 2. |
- Abedan Kondori, Farid, 1983-, et al.
(författare)
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Direct hand pose estimation for immersive gestural interaction
- 2015
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Ingår i: Pattern Recognition Letters. - : Elsevier BV. - 0167-8655 .- 1872-7344. ; 66, s. 91-99
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents a novel approach for performing intuitive gesture based interaction using depth data acquired by Kinect. The main challenge to enable immersive gestural interaction is dynamic gesture recognition. This problem can be formulated as a combination of two tasks; gesture recognition and gesture pose estimation. Incorporation of fast and robust pose estimation method would lessen the burden to a great extent. In this paper we propose a direct method for real-time hand pose estimation. Based on the range images, a new version of optical flow constraint equation is derived, which can be utilized to directly estimate 3D hand motion without any need of imposing other constraints. Extensive experiments illustrate that the proposed approach performs properly in real-time with high accuracy. As a proof of concept, we demonstrate the system performance in 3D object manipulation On two different setups; desktop computing, and mobile platform. This reveals the system capability to accommodate different interaction procedures. In addition, a user study is conducted to evaluate learnability, user experience and interaction quality in 3D gestural interaction in comparison to 2D touchscreen interaction.
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| 3. |
- Kondori, Abedan Farid, et al.
(författare)
-
Direct hand pose estimation for immersive gestural interaction
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Annan publikation (populärvet., debatt m.m.)abstract
- This paper presents a novel approach for performing intuitive gesture-based interactionusing depth data acquired by Kinect. The main challenge to enableimmersive gestural interaction is dynamic gesture recognition. This problemcan be formulated as a combination of two tasks; gesture recognition and gesturepose estimation. Incorporation of fast and robust pose estimation methodwould lessen the burden to a great extent. In this paper we propose a directmethod for real-time hand pose estimation. Based on the range images, a newversion of optical flow constraint equation is derived, which can be utilizedto directly estimate 3D hand motion without any need of imposing other constraints.Extensive experiments illustrate that the proposed approach performsproperly in real-time with high accuracy. As a proof of concept, we demonstratethe system performance in 3D object manipulation on two dierent setups;desktop computing, and mobile platform. This reveals the system capabilityto accommodate dierent interaction procedures. In addition, user studyis conducted to evaluate learnability, user experience and interaction quality in3D gestural interaction in comparison to 2D touch-screen interaction.
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| 4. |
- Lozano, Manuel, et al.
(författare)
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DNA methylation changes associated with prenatal mercury exposure : A meta-analysis of prospective cohort studies from PACE consortium
- 2022
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Ingår i: Environmental Research. - : Elsevier BV. - 0013-9351 .- 1096-0953. ; 204
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Tidskriftsartikel (refereegranskat)abstract
- Mercury (Hg) is a ubiquitous heavy metal that originates from both natural and anthropogenic sources and is transformed in the environment to its most toxicant form, methylmercury (MeHg). Recent studies suggest that MeHg exposure can alter epigenetic modifications during embryogenesis. In this study, we examined associations between prenatal MeHg exposure and levels of cord blood DNA methylation (DNAm) by meta-analysis in up to seven independent studies (n = 1462) as well as persistence of those relationships in blood from 7 to 8 year-old children (n = 794). In cord blood, we found limited evidence of differential DNAm at cg24184221 in MED31 (β = 2.28 × 10−4, p-value = 5.87 × 10−5) in relation to prenatal MeHg exposure. In child blood, we identified differential DNAm at cg15288800 (β = 0.004, p-value = 4.97 × 10−5), also located in MED31. This repeated link to MED31, a gene involved in lipid metabolism and RNA Polymerase II transcription function, may suggest a DNAm perturbation related to MeHg exposure that persists into early childhood. Further, we found evidence for association between prenatal MeHg exposure and child blood DNAm levels at two additional CpGs: cg12204245 (β = 0.002, p-value = 4.81 × 10−7) in GRK1 and cg02212000 (β = −0.001, p-value = 8.13 × 10−7) in GGH. Prenatal MeHg exposure was associated with DNAm modifications that may influence health outcomes, such as cognitive or anthropometric development, in different populations.
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