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Video espectral compresivo por codificación dinámica espacial-espectral-temporal con ventanas de codificación

David Morales-Norato, Andrés Jerez, Miguel Marquez

|February 20, 2026

Resumen

Este estudio introduce un nuevo sistema de video espectral de disparo único para la adquisición eficiente de datos. El enfoque innovador captura videos de espectro completo en una sola exposición, superando las limitaciones de los métodos tradicionales de adquisición múltiple.

Área de la Ciencia:

Óptica y Fotónica.
Procesamiento de imágenes Procesamiento de imágenes.
La espectroscopia es una técnica de espectroscopia.

Sus antecedentes:

La imagen compresiva instantánea permite una eficiente adquisición de datos de alta dimensión.
La captura de video de espectro completo en una sola instantánea es un desafío debido a la adquisición de dimensiones espectrales y temporales separadas.

Objetivo del estudio:

Desarrollar un sistema de video espectral de un solo disparo comprimido dinámico y codificado por colores.
Para abordar las limitaciones en la captura de video espectral dentro de una sola exposición.

Principales métodos:

Emplea un enfoque de codificación temporal con ventanas para mejorar la intensidad de píxeles y el rango dinámico.
Sincroniza un filtro sintonizable de cristal líquido con un dispositivo de apertura codificado para la codificación de video espectral.
Utiliza un método de multiplicador de dirección alterna plug-and-play (PnP-ADMM) para la recuperación de datos.

Principales resultados:

Demuestra una captura y reconstrucción efectivas de vídeo espectral comprimido.
Logra una mejor uniformidad de la intensidad de píxeles y un rango dinámico mejorado a través de la codificación temporal de ventanas.
Valida la efectividad del sistema a través de simulaciones extensas y pruebas de concepto experimentales.

Conclusiones:

El sistema propuesto captura y reconstruye de manera eficiente los datos de video espectral en cuatro dimensiones en una sola toma.
El nuevo esquema de codificación compresiva y el algoritmo PnP-ADMM ofrecen una solución viable para los desafíos de adquisición de video espectral.

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