Future Person Localization in First Person Videos

By | July 2, 2018

Takuma Yagi, Karttikeya Mangalam, Ryo Yonetani, and Yoichi Sato, “Future Person Localization in First-Person Videos”, IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2018), pp. 7593-7602, 2018.

We present a new task that predicts future locations of people observed in first-person videos. Consider a first-person video stream continuously recorded by a wearable camera. Given a short clip of a person that is extracted from the complete stream, we aim to predict his location in future frames. To facilitate this future person localization ability, we make the following three key observations: a) First-person videos typically involve significant ego-motion which greatly affects the location of the target person in future frames; b) Scale of the target person act as a salient cue to estimate a perspective effect in first-person videos; c) First-person videos often capture people up-close, making it easier to leverage target poses (e.g. where they look) for predicting their future locations. We incorporate these three observations into a prediction framework with a multi-stream convolution-deconvolution architecture. Experimental results reveal our method to be effective on our new dataset as well as on a public social interaction dataset.