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A Perceptually Coherent TMO for Visualization of 360° HDR Images on HMD

Abstract : We propose a new Tone Mapping Operator dedicated to the visualization of 360° High Dynamic Range images on Head-Mounted Displays. Previous work around this topic has shown that the existing Tone Mapping Operators for classic 2D images are not adapted to 360° High Dynamic Range images. Consequently, several dedicated operators have been proposed. Instead of operating on the entire 360° image, they only consider the part of the image currently viewed by the user. Tone mapping a part of the 360° image is less challenging as it does not preserve globally the dynamic range of the luminance of the scene. To cope with this problem, we propose a novel Tone Mapping Operator which takes advantage of 1) a view-dependant tone mapping that enhances the contrast, and 2) a Tone Mapping Operator applied to the entire 360 • image that preserves the global coherency. Furthermore, the proposed Tone Mapping Operator is adapted to the human eye perception of the luminance on Head-Mounted Displays. We present two subjective studies to model the lightness perception on such Head-Mounted Displays.
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https://hal.archives-ouvertes.fr/hal-02912340
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Submitted on : Wednesday, August 5, 2020 - 4:30:28 PM
Last modification on : Wednesday, January 13, 2021 - 3:03:52 AM
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Ific Goudé, Rémi Cozot, Olivier Le Meur. A Perceptually Coherent TMO for Visualization of 360° HDR Images on HMD. Transactions on Computational Science XXXVII, pp.109-128, 2020, ⟨10.1007/978-3-662-61983-4_7⟩. ⟨hal-02912340⟩

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