Personne
Adam James Scholefield
Cette personne n’est plus à l’EPFL
Publications associées (26)
Asynchrony Increases Efficiency: Time Encoding of Videos and Low-Rank Signals
Martin Vetterli, Adam James Scholefield, Karen Adam
In event-based sensing, many sensors independently and asynchronously emit events when there is a change in their input. Event-based sensing can present significant improvements in power efficiency when compared to traditional sampling, because (1) the out ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Lippmann Photography: A Signal Processing Perspective
Martin Vetterli, Arnaud Latty, Adam James Scholefield, Gilles Baechler, Michalina Wanda Pacholska
Lippmann (or interferential) photography is the first and only analog photography method that can capture the full color spectrum of a scene in a single take. This technique, invented more than a hundred years ago, records the colors by creating interferen ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Blind as a Bat: Audible Echolocation on Small Robots
Martin Vetterli, Mihailo Kolundzija, Adrien Guillaume Olivier Hoffet, Adam James Scholefield, Frederike Dümbgen
For safe and efficient operation, mobile robots need to perceive their environment, and in particular, perform tasks such as obstacle detection, localization, and mapping. Although robots are often equipped with microphones and speakers, the audio modality ...
2022How Asynchronous Events Encode Video
Martin Vetterli, Adam James Scholefield, Karen Adam
As event-based sensing gains in popularity, theoretical understanding is needed to harness this technology’s potential. Instead of recording video by capturing frames, event-based cameras have sensors that emit events when their inputs change, thus encodin ...
IEEE2021Three-Dimensional Cubic Barcodes
Martin Vetterli, Adam James Scholefield, Golnooshsadat Elhami
We consider three-dimensional cubic barcodes, consisting of smaller cubes, each built from one of two possible materials and carry one bit of information. To retrieve the information stored in the barcode, we measure a 2-D projection of the barcode using a ...
2021Sampling and Reconstruction of Bandlimited Signals with Multi-Channel Time Encoding
Martin Vetterli, Adam James Scholefield, Karen Adam
Sampling is classically performed by recording the amplitude of the input at given time instants; however, sampling and reconstructing a signal using multiple devices in parallel becomes a more difficult problem to solve when the devices have an unknown sh ...
2020Matrix recovery from bilinear and quadratic measurements
Martin Vetterli, Adam James Scholefield, Michalina Wanda Pacholska, Karen Adam
Matrix (or operator) recovery from linear measurements is a well-studied problem. However, there are situations where only bilinear or quadratic measurements are available. A bilinear or quadratic problem can easily be transformed into a linear one, but it ...
ArXiv2020Relax and Recover: Guaranteed Range-Only Continuous Localization
Adam James Scholefield, Frederike Dümbgen, Michalina Wanda Pacholska
Range-only localization has applications as diverse as underwater navigation, drone tracking and indoor localization. While the theoretical foundations of lateration---range-only localization for static points---are well understood, there is a lack of unde ...
2020Relax and Recover: Guaranteed Range-Only Continuous Localization
Adam James Scholefield, Frederike Dümbgen, Michalina Wanda Pacholska
Range-only localization has applications as diverse as underwater navigation, drone tracking and indoor localization. While the theoretical foundations of lateration-range-only localization for static points-are well understood, there is a lack of understa ...
2020Realizability of planar point embeddings from angle measurements
Majed El Helou, Adam James Scholefield, Frederike Dümbgen
Localization of a set of nodes is an important and a thoroughly researched problem in robotics and sensor networks. This paper is concerned with the theory of localization from inner-angle measurements. We focus on the challenging case where no anchor loca ...
2020