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Marc Bolaños; Maite Garolera; Petia Radeva |
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Title |
Video Segmentation of Life-Logging Videos |
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2014 |
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8th Conference on Articulated Motion and Deformable Objects |
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8563 |
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1-9 |
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no |
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Admin @ si @ BGR2014 |
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2558 |
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Author |
Marc Bolaños; Maite Garolera; Petia Radeva |
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Title |
Object Discovery using CNN Features in Egocentric Videos |
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2015 |
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Pattern Recognition and Image Analysis, Proceedings of 7th Iberian Conference , ibPRIA 2015 |
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9117 |
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67-74 |
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Object discovery; Egocentric videos; Lifelogging; CNN |
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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. |
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Santiago de Compostela; España; June 2015 |
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0302-9743 |
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978-3-319-19389-2 |
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IbPRIA |
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no |
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Admin @ si @ BGR2015 |
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2596 |
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Marc Bolaños; Maite Garolera; Petia Radeva |
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Title |
Active labeling application applied to food-related object recognition |
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2013 |
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5th International Workshop on Multimedia for Cooking & Eating Activities |
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45-50 |
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Every day, lifelogging devices, available for recording different aspects of our daily life, increase in number, quality and functions, just like the multiple applications that we give to them. Applying wearable devices to analyse the nutritional habits of people is a challenging application based on acquiring and analyzing life records in long periods of time. However, to extract the information of interest related to the eating patterns of people, we need automatic methods to process large amount of life-logging data (e.g. recognition of food-related objects). Creating a rich set of manually labeled samples to train the algorithms is slow, tedious and subjective. To address this problem, we propose a novel method in the framework of Active Labeling for construct- ing a training set of thousands of images. Inspired by the hierarchical sampling method for active learning [6], we propose an Active forest that organizes hierarchically the data for easy and fast labeling. Moreover, introducing a classifier into the hierarchical structures, as well as transforming the feature space for better data clustering, additionally im- prove the algorithm. Our method is successfully tested to label 89.700 food-related objects and achieves significant reduction in expert time labelling.
Active labeling application applied to food-related object recognition ResearchGate. Available from: http://www.researchgate.net/publication/262252017Activelabelingapplicationappliedtofood-relatedobjectrecognition [accessed Jul 14, 2015]. |
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Barcelona; October 2013 |
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ACM-CEA |
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no |
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Call Number |
Admin @ si @ BGR2013b |
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2637 |
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