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The IRIM group is a consortium of French teams working on Multimedia Indexing and Retrieval. This paper describes our participation to the TRECVID 2010 semantic indexing and instance search tasks. For the semantic indexing task, we evaluated a number of different descriptors and tried different fusion strategies, in particular hierarchical fusion. The best(More)
The widely used Pavlovian fear-conditioning paradigms used for studying the neurobiology of learning and memory have mainly used auditory cues as conditioned stimuli (CS). The present work assessed the neural network involved in olfactory fear conditioning, using olfactory bulb stimulation-induced field potential signal (EFP) as a marker of plasticity in(More)
In this paper, we present the first participation of a consortium of French laboratories, IRIM, to the TRECVID 2008 BBC Rushes Summarization task. Our approach resorts to video skimming. We propose two methods to reduce redundancy, as rushes include several takes of scenes. We also take into account low and mid-level semantic features in an ad-hoc fusion(More)
This paper presents an analysis of sound effect on visual gaze when looking at videos to help to predict eye positions. First, an audiovisual experiment was designed with two groups of participants, with audiovisual (AV) and visual (V) conditions to test the sound effect. We classify the sound in three classes: on-screen speech, non-speech and non-sound. We(More)
This paper presents a spatio-temporal saliency model that predicts eye movements. This biologically inspired model separated a video frame into two signals corresponding to the two main outputs of the retina (parvocellular and magnocellular outputs). Both signals are then decomposed into elementary feature maps by cortical-like filters. These feature maps(More)
We present a system for visuo-auditory substitution that takes as input a depth map, and produces as output a corresponding melody. A real-time apparatus based on the Kinect R , a computer and a headphone, is developed within our team. Earlier experiment with the system shows that, when equipped, a sighted person temporary deprived from vision can therefore(More)
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