Whose touch is this?

Whose touch is this? Understanding the Agency Trade-off Between User-driven touch vs. Computer-driven Touch (to be appear / in publication process)In ACM Transactions on Computer-Human Interaction (full paper) Daisuke Tajima, Jun Nishida, Pedro Lopes, and Shunichi Kasahara. Force-feedback interfaces actuate the user’s to touch involuntarily (using exoskeletons or electrical muscle stimulation); we refer to this as computer-driven…

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Stealth Updates

Stealth Updates of Visual Information by Leveraging Change Blindness and Computational Visual Morphing Shunichi Kasahara (Sony CSL), Kazuma Takada (Sony CSL) This paper will be presented in ACM SAP’21 / ACM Transactions on Applied Perception (TAP) Abstract We present an approach for covert visual updates by leveraging change blindness with computationally generated morphed images. To…

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Behind the Game

Behind the Game: Implicit Spatio-temporal Intervention in Inter-personal Remote Physical Interactions on Playing Air Hockey The collaboration project with Azumi Maekawa, Hiroto Saito, Narin Okazaki and Masahiko Inami (RCAST, The University of Tokyo)  ABSTRACT When playing inter-personal sports games remotely, the time lag between user actions and feedback decreases the user’s performance and sense of agency. While computational assistance can improve…

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Morphing Identity

Morphing Identity What is our identity? This work provides an experience in which a face that you know to be your own will be transformed into the face of another person. Based on the human perceptual characteristics of visual changes, computationally created perceptually smooth change is applied to the facial image and composited in real-time, causing…

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Speedup After Agency EMS training

Preserving Agency During Electrical Muscle Stimulation Training Speeds up Reaction Time Directly After Removing EMS Shunichi Kasahara (Sony CSL), Kazuma Takada (Sony CSL), Jun Nishida (UChicago), Kazuhisa Shibata (RIKEN CBS) , Shinsuke Shimojo (Caltech) , Pedro Lopes (UChicago). Collaborative projects with UChicago Human Computer Integration Lab (Pedro Lopes, Jun Nishida) , Kazuhisa Shibata (RIKEN CBS) and Shinsuke…

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Fragment Shadow (2020)

Credits– Shunichi Kasahara (Sony CSL)– Satoru Higa (BACKSPACE Productions Inc. ) Fragment Shadow is an interactive art of real physical shadows cast by audiences in precisely calibrated projection space. Fragment Shadow system creates a unique projection space with a large screen surface from multiple projectors by comprehensive spatial geometry and color calibration process. When human…

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The Tight Game

The Tight Game: Implicit Force Intervention in Inter-personal Physical Interactions on Playing Tug of War Azumi Maekawa (Tokyo Univ.), Shunichi Kasahara, Hiroto Saito(Tokyo Univ), Daisuke Uriu (Tokyo Univ.), Gowrishankar Ganesh (CNRS) , Masahiko Inami (Tokyo Univ) This work was presented at SIGGRAPH 2020 Emerging Technologies ABSTRACT Physical assistance can alleviate individual differences of abilities between…

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Fragment Shadow

Generating Optical Fragmented Shadows with Multi-Projectors Geometry and Color Calibration. Your Real Shadow is Transformed The shadow is the most primitive graphic that projects ourselves, and the transformation of own real shadow would induce the changes of our own body sensation. In the calibrated multiple-projection field, your real optical shadow will be fragmented, textured, and immersed in…

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Preemptive Action

Preemptive Action: Accelerating Human Reaction using Electrical Muscle Stimulation Shunichi Kasahara / (SonyCSL)Jun Nishida (The University of Chicago)Pedro Lopes  (The University of Chicago)本プロジェクトは、シカゴ大学の西田 惇氏、Pedro Lopes氏との共同研究です。 Even computer actuates us before our will, we perceive  “I did it” in some condition. We investigate time window and foundation of the induction of pseudo Sense of Agency with…

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HeadLight

Egocentric visual augmentation by wearable wide projector HeadLight has a fish-eye conversion lens on the projector which enables much wider projection image. However, the conversion lens produces strong distortion in the projected image with pincushion shape. The Headlight system compensates this distortion based on a fisheye model distortion. Therefore, Headlight enables wide angle visual projection…

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