A Compact Deep Architecture for Real-time Saliency Prediction

• URL: http://arxiv.org/abs/2008.13227v1
• Date: Sun, 30 Aug 2020 17:47:16 GMT
• Title: A Compact Deep Architecture for Real-time Saliency Prediction
• Authors: Samad Zabihi, Hamed Rezazadegan Tavakoli, Ali Borji
• Abstract summary: Saliency models aim to imitate the attention mechanism in the human visual system. Deep models have a high number of parameters which makes them less suitable for real-time applications. Here we propose a compact yet fast model for real-time saliency prediction.
• Score: 42.58396452892243
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Saliency computation models aim to imitate the attention mechanism in the human visual system. The application of deep neural networks for saliency prediction has led to a drastic improvement over the last few years. However, deep models have a high number of parameters which makes them less suitable for real-time applications. Here we propose a compact yet fast model for real-time saliency prediction. Our proposed model consists of a modified U-net architecture, a novel fully connected layer, and central difference convolutional layers. The modified U-Net architecture promotes compactness and efficiency. The novel fully-connected layer facilitates the implicit capturing of the location-dependent information. Using the central difference convolutional layers at different scales enables capturing more robust and biologically motivated features. We compare our model with state of the art saliency models using traditional saliency scores as well as our newly devised scheme. Experimental results over four challenging saliency benchmark datasets demonstrate the effectiveness of our approach in striking a balance between accuracy and speed. Our model can be run in real-time which makes it appealing for edge devices and video processing.

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