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Revisiting 360 Depth Estimation With PanoGabor: A New Fusion Perspective
IEEE transactions on pattern analysis and machine intelligence
|January 13, 2026
Resumen
This study introduces PGFuse, a novel framework for monocular 360 depth estimation. It effectively handles distortions in 360 images using Gabor filters and a unique fusion module, improving 3D perception.
Área de la Ciencia:
- Visión por Computadora
- Reconstrucción 3D
- Aprendizaje Automático
Sus antecedentes:
- La estimación de profundidad monocular 360 es crucial para la percepción del entorno 3D.
- Las distorsiones inherentes y el amplio campo de visión (FoV) en las imágenes 360 presentan desafíos significativos.
- Los métodos existentes a menudo se basan en representaciones intermedias (por ejemplo, Cubemap) que reintroducen distorsiones al convertirse a proyección equirectangular (ERP).
Objetivo del estudio:
- Proponer un marco de fusión Gabor consciente de la distorsión orientada (PGFuse) para la estimación de profundidad monocular 360.
- Abordar los desafíos que plantean las distorsiones y el gran campo de visión (FoV) en las imágenes 360.
- Mejorar la extracción de características y la utilización de señales de profundidad.
Principales métodos:
- Introducción de filtros Gabor para el análisis de texturas en el dominio de la frecuencia, expandiendo los campos receptivos y mejorando las señales de profundidad.
- Desarrollo de una representación de distorsión consciente de la latitud para crear filtros Gabor personalizados y conscientes de la distorsión (filtros PanoGabor).
- Diseño de un módulo de fusión unidireccional a nivel de canal y espacial (CS-UFM) para integrar filtros PanoGabor y unificar las representaciones en formato ERP.
- Implementación de una restricción de gradiente esférico para estabilizar la sensibilidad a la orientación de las transformadas de Gabor.
Principales resultados:
- El marco PGFuse propuesto demuestra un rendimiento superior en comparación con los métodos de vanguardia.
- Los resultados experimentales en tres puntos de referencia interiores 360 validan la efectividad del enfoque.
- El método genera con éxito características efectivas y conscientes de la distorsión para la estimación de profundidad.
Conclusiones:
- PGFuse ofrece una solución robusta para la estimación de profundidad monocular 360 al gestionar eficazmente las distorsiones de la imagen.
- El marco mejora la percepción de profundidad en entornos 3D capturados por cámaras 360.
- Las técnicas desarrolladas proporcionan un avance significativo en el campo del procesamiento de imágenes 360.
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