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Author

T. D. Da Silveira

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Aug 2026

HiFiC360: High-Fidelity Compression for 360° Images

360° images, defined on a sphere, are widely used in immersive applications, but their equirectangular projection introduces distortions, especially near the poles, while the equatorial region is most perceptually important. This paper adapts the HiFiC model to ${360}^{{\circ}}$ imagery through three changes: (i) repla...

G. S. Baggio, D. R. Chaves, T. D. Da Silveira · 0 citations
Open access 2026

Geometry-Aware Transform Pruning for Omnidirectional Image Compression

This study introduces a latitude-adaptive discrete cosine transform pruning method designed for low-complexity omnidirectional image compression. The proposed approach exploits the Nyquist-Shannon sampling theorem together with the geometric characteristics of the de facto sphere-to-plane mapping for omnidirectional me...

T. D. Da Silveira, Enzo B. Segala, F. M. Bayer et al. · 0 citations

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