Multimedia Geocoding: The RECOD 2014 Approach
نویسندگان
چکیده
This work describes the approach proposed by the RECOD team for the Placing Task of MediaEval 2014. This task requires the definition of automatic schemes to assign geographical locations to images and videos. Our approach is based on the use of as much evidences as possible (textual, visual, and/or audio descriptors) to geocode a given image/video. We estimate the location of test items by clustering the geographic coordinates of top-ranked items in one or more ranked lists defined in terms of different criteria.
منابع مشابه
Multimodal Image Geocoding: The 2013 RECOD's Approach
This work describes the approach used by the RECOD team in the MediaEval Placing Task of 2013, in which we were required to develop an automatic scheme to assign geographical locations to images. Our approach is multimodal, considering textual and visual descriptors, which are combined by a rank aggregation strategy. We estimate the location of test images based on the coordinates of top-ranked...
متن کاملRECOD Working Notes for Placing Task MediaEval 2011
This work is developed in the context of placing task at MediaEval 2011. It consists in automatically assigning geographical coordinates to a set of videos. Our group proposed an architecture design for the multimodal geocoding. In this paper, we focused on implementing a simple content-based approach, which is part of the proposed framework. The reported results show our strategy compared to t...
متن کاملRECOD @ Placing Task of MediaEval 2016: A Ranking Fusion Approach for Geographic-Location Prediction of Multimedia Objects
We describe the approach proposed by the RECOD team for the estimation-based sub-task of Placing Task at MediaEval 2016. Our approach uses genetic programming (GP) to combine ranked lists defined in terms of textual and visual descriptors to automatically assign geographic locations to images and videos.
متن کاملA New Approach to Sar Interferogram Geocoding
Several geocoding methods for SAR interferometry are compared. The discussion results in the proposal of a new geocoding model. It is based on a least squares adjustment combining interferometric phase, range, Doppler centroid frequency, flight path and control point data. A complete mathematical framework for the computation of object space coordinates without approximations is presented. This...
متن کاملRECOD at MediaEval 2014: Violent Scenes Detection Task
This paper presents the RECOD approaches used in the MediaEval 2014 Violent Scenes Detection task. Our system is based on the combination of visual, audio, and text features. We also evaluate the performance of a convolutional network as a feature extractor. We combined those features using a fusion scheme. We participated in the main and the generalization tasks.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2014