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Christian Hofmann

5 accepted papers

2019

Learning Topometric Semantic Maps from Occupancy Grids

IROS 2019poster

Today's mobile robots are expected to operate in complex environments they share with humans. To allow intuitive human-robot collaboration, robots require a human-like understanding of their surroundings in terms of semantically classified instances. In this paper, we propose a new approach for deri…

Cited by 33SourcecodeScholar
2017

Online secondary path modelling in wave-domain active noise control

ICASSP 2017accepted

The performance of an ANC system largely depends on the availability of an accurate secondary path model. This is however a major challenge in multichannel ANC where the computational complexity increases significantly with the number of secondary sources and error sensors. This paper proposes wave-…

Cited by 0SourceScholar
2016

Generalized wave-domain transforms for listening room equalization with azimuthally irregularly spaced loudspeaker arrays

ICASSP 2016accepted

In reverberant environments, Listening Room Equalization (LRE) by pre-filtering of loudspeaker signals is highly desirable for premium sound reproduction systems with a high number of loudspeakers. In this contribution, the efficient concept of LRE by wave-domain adaptive filtering is extended by de…

Cited by 0SourceScholar
2016

Higher-order listening room compensation with additive compensation signals

ICASSP 2016accepted

The performance of sound reproduction systems for spatial audio is impaired by time-variant, reverberant listening environments. To tackle this issue, the Loudspeaker-Enclosure-Microphone System (LEMS) between the loudspeakers and reference microphones in the listening environment can be identified…

Cited by 0SourceScholar