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Niels Henze

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Small Latency Variations do not Affect Player Performance in First-Person ShootersCHI PLAY 20232023-10-10
Claim: small continuous jitter of about ±50 ms variation does not change aiming performance in a fast FPS. Method: a within‑subject experiment with 28…
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The Effects of Latency and In-Game Perspective on Player Performance and Game ExperienceCHI PLAY 20232023-10-10
Study builds a custom shooting game with First-Person, Third-Person, and Bird's-Eye perspectives, tests N=36 within-subjects at system and artificially high…
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Flexing Muscles in Virtual Reality: Effects of Avatars’ Muscular Appearance on Physical PerformanceCHI PLAY 20202020-11-02
Study with 30 participants measures isometric hold for 60 seconds with 1 kg per hand at 90° shoulder abduction, Borg RPE, dynamometer grip strength, and JND…
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Notification in VR: The Effect of Notification Placement, Task and EnvironmentCHI PLAY 20192019-10-22
A 24-participant VR user study implements four notification placements (heads-up display, on-body, floating, in-situ), three tasks (game, learning, problem…
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Investigating the feasibility of finger identification on capacitive touchscreens using deep ...IUI 20192019-03-17
Study collects a representative dataset of 455,709 capacitive images from a Nexus 5 (27×15 pixel touch maps), trains CNNs on raw pixels and achieves a…
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InfiniTouch: Finger-Aware Interaction on Fully Touch Sensitive SmartphonesUIST 20182018-10-14
A phone prototype uses two Nexus 5 units and an Arduino with capacitive sensors on front, back and three sides to capture low‑res “capacitive images”; a…
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Evaluating the Disruptiveness of Mobile Interactions: A Mixed-Method ApproachCHI 20182018-04-21
Mixed-method procedure combines eye tracking, audio/video, pre/post interviews and a simulated coffee conversation to measure disruption; 24 participants…
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Understanding Face and Eye Visibility in Front-Facing Cameras of Smartphones used in the WildCHI 20182018-04-21
Field study installs a recorder app on 11 phones for two weeks and collects 25,726 in‑the‑wild photos plus sensor and app logs; full face appears only 29% full…
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Reading on Smart Glasses: The Effect of Text Position, Presentation Type and WalkingCHI 20182018-04-21
Study with 24 participants uses a Microsoft HoloLens (text rendered at ~1.5 m) and a mouse-controlled reader to compare top-right position, center and…
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Estimating the Finger Orientation on Capacitive Touchscreens Using Convolutional Neural NetworksACM ISS 20172017-10-18
Provides a ground-truth dataset (≈500k labeled touches from 33 participants tracked with motion capture) and shows raw capacitive matrices fed to models in…
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PredicTouch: A System to Reduce Touchscreen Latency using Neural Networks and Inertial ...ACM ISS 20172017-10-18
PredicTouch uses wrist, finger, or stylus IMUs plus a multi-layer feedforward neural network (500/400/300 units, AdaGrad, outputs X/Y every 16 ms) to predict…
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