@inproceedings{10.1145/3623509.3633382,
author = {Getschmann, Christopher and Echtler, Florian},
title = {LensLeech: On-Lens Interaction for Arbitrary Camera Devices},
year = {2024},
isbn = {9798400704024},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3623509.3633382},
doi = {10.1145/3623509.3633382},
abstract = {Cameras provide a vast amount of information at high rates and are part of many specialized or general-purpose devices. This versatility makes them suitable for many interaction scenarios, yet they are constrained by geometry and require objects to keep a minimum distance for focusing. We present the LensLeech, a soft silicone cylinder that can be placed directly on or above lenses. The clear body itself acts as a lens to focus a marker pattern from its surface into the camera it sits on. This allows us to detect rotation, translation, and deformation-based gestures such as pressing or squeezing the soft silicone. We discuss design requirements, describe fabrication processes, and report on the limitations of such on-lens widgets. To demonstrate the versatility of LensLeeches, we built prototypes to show application examples for wearable cameras, smartphones, and interchangeable-lens cameras, extending existing devices by providing both optical input and output for new functionality.},
booktitle = {Proceedings of the Eighteenth International Conference on Tangible, Embedded, and Embodied Interaction},
articleno = {34},
numpages = {10},
keywords = {Elastomer Sensors, Mobile Interfaces, Optical Widgets},
location = {<conf-loc>, <city>Cork</city>, <country>Ireland</country>, </conf-loc>},
series = {TEI '24}
}