Coded Modulation Simulation Framework for Time-of-Flight Cameras

Armin Schönlieb, Matthias Almer, David Lugitsch, Christian Steger, Gerald Holweg, Norbert Druml

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

In recent years, application fields such as secure face recognition or autonomous driving increased the demand on efficient depth sensing systems. Time-of-Flight (ToF) sensors are well suited for these applications. The measurement principle is based on measuring the phase and consequently the delay of emitted and reflected light. For this delay measurement a continuous wave signal is emitted. Coded modulation replaces this continuous wave signal with code sequences. This enables new possibilities as the measurement range of the camera is adjustable with coded modulation. A well suited way for the characterization of this modulation method is a simulation framework. In this paper, we present a simulation framework for coded modulation ToF imagers. We present a detailed description of our PMD technology. From this theoretical description, we adapt an existing simulation model for coded modulation ToF cameras. The model of the camera considers various different noise sources. Furthermore depth calculation principles of coded modulation are introduced. As our evaluation shows, our framework is able to simulate real life behavior of coded modulation. Furthermore we are able to model the correlation form, and consequently the depth and intensity measurement behavior. In the end we evaluate our simulation results with real live measurement data. With this framework easy to use evaluation of coded modulation will enable new applications for this technique.
Original languageEnglish
Title of host publication2019 22nd Euromicro Conference on Digital System Design (DSD)
PublisherInstitute of Electrical and Electronics Engineers
Pages615-619
ISBN (Electronic)978-1-7281-2862-7
DOIs
Publication statusPublished - 2019
Event22nd Euromicro Conference on Digital System Design - Kallithea, Greece
Duration: 28 Aug 201930 Aug 2019

Conference

Conference22nd Euromicro Conference on Digital System Design
Abbreviated titleDSD 2019
CountryGreece
City Kallithea
Period28/08/1930/08/19

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Schönlieb, A., Almer, M., Lugitsch, D., Steger, C., Holweg, G., & Druml, N. (2019). Coded Modulation Simulation Framework for Time-of-Flight Cameras. In 2019 22nd Euromicro Conference on Digital System Design (DSD) (pp. 615-619). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/DSD.2019.00095