{"ID":2875088,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.03430","arxiv_id":"2509.03430","title":"EclipseTouch: Touch Segmentation on Ad Hoc Surfaces using Worn Infrared Shadow Casting","abstract":"The ability to detect touch events on uninstrumented, everyday surfaces has been a long-standing goal for mixed reality systems. Prior work has shown that virtual interfaces bound to physical surfaces offer performance and ergonomic benefits over tapping at interfaces floating in the air. A wide variety of approaches have been previously developed, to which we contribute a new headset-integrated technique called \\systemname. We use a combination of a computer-triggered camera and one or more infrared emitters to create structured shadows, from which we can accurately estimate hover distance (mean error of 6.9~mm) and touch contact (98.0\\% accuracy). We discuss how our technique works across a range of conditions, including surface material, interaction orientation, and environmental lighting.","short_abstract":"The ability to detect touch events on uninstrumented, everyday surfaces has been a long-standing goal for mixed reality systems. Prior work has shown that virtual interfaces bound to physical surfaces offer performance and ergonomic benefits over tapping at interfaces floating in the air. A wide variety of approaches h...","url_abs":"https://arxiv.org/abs/2509.03430","url_pdf":"https://arxiv.org/pdf/2509.03430v1","authors":"[\"Vimal Mollyn\",\"Nathan DeVrio\",\"Chris Harrison\"]","published":"2025-09-03T15:59:28Z","proceeding":"cs.HC","tasks":"[\"cs.HC\",\"cs.CV\",\"cs.GR\",\"cs.RO\"]","methods":"[]","has_code":false}