PT Unknown AU Marc Bolaños Maite Garolera Petia Radeva TI Object Discovery using CNN Features in Egocentric Videos BT Pattern Recognition and Image Analysis, Proceedings of 7th Iberian Conference , ibPRIA 2015 PY 2015 BP 67 EP 74 VL 9117 DI 10.1007/978-3-319-19390-8_8 DE Object discovery; Egocentric videos; Lifelogging; CNN AB Lifelogging devices based on photo/video are spreading faster everyday. This growth can represent great benefits to develop methods for extraction of meaningful information about the user wearing the device and his/her environment. In this paper, we propose a semi-supervised strategy for easily discovering objects relevant to the person wearing a first-person camera. The egocentric video sequence acquired by the camera, uses both the appearance extracted by means of a deep convolutional neural network and an object refill methodology that allow to discover objects even in case of small amount of object appearance in the collection of images. We validate our method on a sequence of 1000 egocentric daily images and obtain results with an F-measure of 0.5, 0.17 better than the state of the art approach. ER