Learning to Map Efficiently by Active Echolocation

Xixi Hu,Senthil Purushwalkam,David Harwath,Kristen Grauman,Xixi Hu,Senthil Purushwalkam,David Harwath,Kristen Grauman

Using visual SLAM to map new environments requires time-consuming visits to all regions for data collection. We propose an approach to estimate maps of areas beyond the visible regions using a cheap and readily available modality of data-sound. We introduce the idea of an active audio-visual mapping agent. Besides collecting visual data, the proposed agent emits sounds during navigation, captures ...