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Panoramic convolutions for 360º single-image saliency prediction

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PubDate: June 2020

Teams: Universidad de Zaragoza,I3A

Writers: Daniel Martín, Ana Serrano, Belen Masia

PDF: Panoramic convolutions for 360º single-image saliency prediction

Project: Panoramic convolutions for 360º single-image saliency prediction

Abstract

We present a convolutional neural network based on panoramic convolutions for saliency prediction in 360º equirectangular panoramas. Our network architecture is designed leveraging recently presented 360o-aware convolutions that represent kernels as patches tangent to the sphere where the panorama is projected, and a spherical loss function that penalizes prediction errors for each pixel depending on its coordinates in a gnomonic projection. Our model is able to successfully predict saliency in 360º scenes from a single image, outperforming other state-of-the-art approaches for panoramic content, and yielding more precise results that may help in the understanding of users’ behavior when viewing 360º VR content.

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