Jörg Müller

schoolUniversity of Bayreuthbar_chart#862 Global Rank

Total Papers

HCI Rank

#862

Research Areas

Years Active

Recent Publications

SIM2VR: Towards Automated Biomechanical Testing in VR

Automated biomechanical testing has great potential for the development of VR applications, as initial insights into user behaviour can be gained in silico early in the design process. In particular, it allows prediction of user movements and ergonomic variables, such as fatigue, prior to conducting user studies. Ho…

UIST '225th+ AuthorHuman Pose & Activity Recognition +1

Breathing Life Into Biomechanical User Models

Forward biomechanical simulation in HCI holds great promise as a tool for evaluation, design, and engineering of user interfaces. Although reinforcement learning (RL) has been used to simulate biomechanics in interaction, prior work has relied on unrealistic assumptions about the control problem involved, which limits…

DIS '20CorrespondingMid-Air Haptics (Ultrasonic) +2

HaptiRead: Reading Braille as Mid-Air Haptic Information

Mid-air haptic interfaces have several advantages - the haptic information is delivered directly to the user, in a manner that is unobtrusive to the immediate environment. They operate at a distance, thus easier to discover; they are more hygienic and allow interaction in 3D. We validate, for the first time, in a prel…

CHI '20CorrespondingHand Gesture Recognition +1

Dynamics of Aimed Mid-air Movements

Mid-air arm movements are ubiquitous in VR, AR, and gestural interfaces. While mouse movements have received some attention, the dynamics of mid-air movements are understudied in HCI. In this paper we present an exploratory analysis of the dynamics of aimed mid-air movements. We explore the 3rd order lag (3OL) and exi…

CHI '20CorrespondingHonorable MentionMid-Air Haptics (Ultrasonic) +2

Levitation Simulator: Prototyping Ultrasonic Levitation Interfaces in Virtual Reality

We present the Levitation Simulator, a system that enables researchers and designers to iteratively develop and prototype levitation interface ideas in Virtual Reality. This includes user tests and formal experiments. We derive a model of the movement of a levitating particle in such an interface. Based on this, we de…

CHI '20CorrespondingFull-Body Interaction & Embodied Input +1

Performance and Experience of Throwing in Virtual Reality

Throwing is a fundamental movement in many sports and games. Given this, accurate throwing in VR applications today is surprisingly difficult. In this paper we explore the nature of the difficulties of throwing in VR in more detail. We present the results of a user study comparing throwing in VR and in the physical wo…

UIST '18CorrespondingHand Gesture Recognition +2

Ownershift: Facilitating Overhead Interaction in Virtual Reality with an Ownership-Preserving Hand Space Shift

We present Ownershift, an interaction technique for easing overhead manipulation in virtual reality, while preserving the illusion that the virtual hand is the user’s own hand. In contrast to previous approaches, this technique does not alter the mapping of the virtual hand position for initial reaching movements towa…

CHI '181st AuthorHand Gesture Recognition +1

Control Theoretic Models of Pointing

This article presents an empirical comparison of four models from manual control theory on their ability to model targeting behaviour by human users using a mouse: McRuer’s Crossover, Costello’s Surge, second-order lag (2OL), and the Bang-bang model. Such dynamic models are generative, estimating not only movement tim…

CHI '18CorrespondingFull-Body Interaction & Embodied Input +1

Inpher: Inferring Physical Properties of Virtual Objects from Mid-Air Interaction

We present Inpher, a virtual reality system for setting physical properties of virtual objects using mid-air interaction. Users simply grasp virtual objects and mimic their desired physical movement. The physical properties required to fulfill that movement will then be inferred directly from that motion. We provide…

CHI '18CorrespondingMixed Reality Workspaces +1

OptiSpace: Automated Placement of Interactive 3D Projection Mapping Content

We present OptiSpace, a system for the automated placement of perspectively corrected projection mapping content. We analyze the geometry of physical surfaces and the viewing behavior of users over time using depth cameras. Our system measures user view behavior and simulates a virtual projection mapping scene users w…

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