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Jan Skaloud

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Publications associées (100)

Mapping with MAV: Experimental Study on the Contribution of Absolute and Relative Aerial Position Control

Jan Skaloud, Martin Rehak

This study highlights the benefit of precise aerial position control in the context of mapping using frame-based imagery taken by small UAVs. We execute several flights with a custom Micro Aerial Vehicle (MAV) octocopter over a small calibration field equi ...

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences2014

A Micro Aerial Vehicle with Precise Position and Attitude Sensors

Jan Skaloud, Romain Mabillard, Martin Rehak

This study shows the potential of navigation technologies in the field of position and orientation determination on a micro aerial vehicle (MAV), which weight does not exceed 5 kg. Although the MAV systems feature high flexibility and capability of flying ...

E Schweizerbartsche Verlagsbuchhandlung2014

A Micro-Uav with the Capability of Direct Georeferencing

Jan Skaloud, Romain Mabillard, Martin Rehak

This paper presents the development of a low cost UAV (Unmanned Aerial Vehicle) with the capability of direct georeferencing. The advantage of such system lies in its high maneuverability, operation flexibility as well as capability to acquire image data w ...

ISPRS Archives2013

Autarktic and inertial measurement based low-cost reconstruction of motorcycle forward speed

Jan Skaloud, Yannick Stebler

2013

Autarktic and Inertial Measurements based Low-cost Reconstruction of Motorcycle forward Speed

Jan Skaloud, Roger Filliger, Yannick Stebler

Although well established in the aviation community, low-cost and vehicle independent "black-box" technology for accident analysis, adapted to mass-market ground-based vehicles, is an emerging technology with growing importance. Whilst several produits sui ...

2013

Soil Moisture & Snow Properties Determination with GNSS in Alpine Environments: Challenges, Status, and Perspectives

Jan Skaloud, Pierre-André Farine, Cyril Botteron, Jérôme Leclère, Steven Vincent Weijs

Moisture content in the soil and snow in the alpine environment is an important factor, not only for environmentally oriented research, but also for decision making in agriculture and hazard management. Current observation techniques quantifying soil moist ...

2013

Wavelet-variance-based estimation for composite stochastic processes

Jan Skaloud, Stéphane Guerrier, Yannick Stebler

This article presents a new estimation method for the parameters of a time series model. We consider here composite Gaussian processes that are the sum of independent Gaussian processes which, in turn, explain an important aspect of the time series, as is ...

Amer Statistical Assoc2013

SEARCHING LOST PEOPLE WITH UAVS: THE SYSTEM AND RESULTS OF THE CLOSE-SEARCH PROJECT

Jan Skaloud

This paper will introduce the goals, concept and results of the project named CLOSE-SEARCH, which stands for ’Accurate and safe EGNOS-SoL Navigation for UAV-based low-cost Search-And-Rescue (SAR) operations’. The main goal is to integrate a medium-size, he ...

2012

Fault Detection and Isolation in Multiple MEMS-IMUs Configurations

Adrian Wägli, Jan Skaloud, Stéphane Guerrier

This research presents methods for detecting and isolating faults in multiple micro-electro-mechanical system inertial measurement unit (MEMS-IMU) configurations. First, geometric configurations with n sensor triads are investigated. It is proved that the ...

Institute of Electrical and Electronics Engineers2012

Automated Assessment of Digital Terrain Models Derived From Airborne Laser Scanning

Philipp Schär, Jan Skaloud

This paper presents the derivation of surface-related quality indicators describing the confidence-metrics of the final geo-products de- rived from airborne laser scanning (ALS). We first discuss the number of factors influencing the qual- ity of the digit ...

2012

Automated approach for rigorous light detection and ranging system calibration without preprocessing and strict terrain coverage requirements

Jan Skaloud

Light detection and ranging (LiDAR) has demonstrated its capabilities as a prominent technique for the direct acquisition of high density and accurate topographic information. To achieve the potential accuracy of such systems, a rigorous system calibration ...

Spie-Soc Photo-Optical Instrumentation Engineers2012

Constrained expectation-maximization algorithm for stochastic inertial error modeling: study of feasibility

Jan Skaloud, Stéphane Guerrier, Yannick Stebler

Stochastic modeling is a challenging task for low-cost sensors whose errors can have complex spectral structures. This makes the tuning process of the INS/GNSS Kalman filter often sensitive and difficult. For example, first-order Gauss–Markov processes are ...

Institute of Physics2011

Rigorous Integration of Inertial Navigation with Optical Sensors by Dynamic Networks

Jan Skaloud, Denis Rouzaud

This paper presents a new concept for simultaneous modeling and adjusting of raw inertial observations with optical and (if available) GNSS data streams. The presented post-mission procedure of dynamic networks allows treating dynamic (e.g. inertial) and s ...

Cambridge University Press2011

Improving Modeling of MEMS-IMUs Operating in GNSS-denied Conditions

Jan Skaloud, Stéphane Guerrier, Yannick Stebler

Stochastic modeling is a challenging task for low- cost inertial sensors whose errors can have complex spectral structures. This makes the tuning process of the INS/GNSS Kalman filter often sensitive and difficult. We are currently investigating two approa ...

Inst Navigation2011

Noise reduction and estimation in multiple micro-electro-mechanical inertial systems

Adrian Wägli, Jan Skaloud, Stéphane Guerrier

This research studies the reduction and the estimation of the noise level within a redundant configuration of low-cost (MEMS-type) inertial measurement units (IMUs). Firstly, independent observations between units and sensors are assumed and the theoretica ...

Institute of Physics2010

Real-time registration of airborne laser data with sub-decimeter accuracy

Jan Skaloud, Yannick Stebler, Phillip Tomé

This paper presents a methodology for the precise registering of airborne laser data directly in flight with an accuracy that is sufficient for the majority of derived products, such as digital terrain models. We first present the strategy that integrates ...

2010

Airborne LiDAR In-flight Accuracy Estimation

Jan Skaloud, Yannick Stebler, Phillip Tomé

A flexible quality-monitoring tool that assesses data quality in-flight avoids costly problems that are currently detected only in post-processing. ...

2009

Optimization of two GPS/MEMS-IMU integration strategies with application to sports

Adrian Wägli, Jan Skaloud

The application of low-cost L1 GPS receivers integrated with micro-electro-mechanical system (MEMS) inertial measurement units (IMU) allows the continuous observation of position, velocity and orientation which opens new possibilities for comparison orf at ...

Springer Verlag2009

The use of wavelet transform for an automated initialization in GPS/MEMS-IMU integration

Adrian Wägli, Jan Skaloud, Heidi Fournier

The main objective of this research is in automating the initialization phase of the MEMS-IMZ/GPS data integration. The motivation for this study is the special case where the before mentioned sensors are worn on a body (e.g. of an athlete) and where the u ...

2009

Vers une analyse de qualité des données de laser aéroporté en temps réel

Jan Skaloud, Phillip Tomé

Un des problèmes majeurs des systèmes laser aéroportés (ALS) est l'estimation fiable de la qualité des données en vol ou immédiatement après. Cet article présente un outil qui permet d'estimer la qualité et l'intégrité des données saisies en temps réel (TR ...

2008

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