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Un método ligero basado en YOLOv8n para la detección de posturas humanas anómalas

Guilin Li1, Jiarui Zhang2, Qiyuan Ji1

  • 1School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou, China.

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|February 4, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Este estudio presenta PSD-YOLOv8n, un algoritmo ligero para detectar posturas humanas anómalas, que mejora la precisión y la eficiencia en aplicaciones de atención médica y seguridad. El modelo logra un alto rendimiento con un tamaño compacto, ofreciendo una solución fiable para la monitorización en tiempo real.

Palabras clave:
Mecanismo de atenciónDetección de posturas humanas anómalasLigeroYOLOv8n

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Área de la Ciencia:

  • Visión por Computadora
  • Inteligencia Artificial
  • Ingeniería Biomédica

Sus antecedentes:

  • La detección de posturas humanas anómalas es crucial para la atención médica inteligente, la seguridad pública y el cuidado de ancianos.
  • Los métodos existentes se enfrentan a desafíos como la oclusión, la variación de la pose, el desequilibrio de datos y los grandes tamaños de modelo, lo que dificulta el rendimiento en tiempo real.

Objetivo del estudio:

  • Desarrollar un algoritmo ligero y preciso para la detección de posturas humanas anómalas.
  • Abordar las limitaciones de los métodos actuales en escenarios complejos y entornos con recursos limitados.

Principales métodos:

  • Se propone el algoritmo PSD-YOLOv8n basado en YOLOv8n, que incorpora un módulo PoseMSA con atención espacial y de canal.
  • Se utilizaron convoluciones separables y cuellos de botella residuales para una extracción de características eficiente.
  • Se introdujo un módulo de sobremuestreo KA-Sample sensible a los puntos clave y una cabeza de detección Detect-PSA para mejorar la modelización de las relaciones espaciales.

Principales resultados:

  • PSD-YOLOv8n logró un 97,8% de mAP@0,5 y un 75,8% de mAP@0,5:0,95 en el SSHDataset.
  • Superó a los modelos base YOLOv8n y a modelos avanzados como YOLOv9-T, YOLOv10n y YOLOv11n.
  • El modelo cuenta con un recuento compacto de 2,07 millones de parámetros y un tamaño de peso de 4,5 MB, lo que demuestra capacidades ligeras y de alta precisión.

Conclusiones:

  • PSD-YOLOv8n ofrece una solución eficiente y fiable para la detección de posturas humanas anómalas.
  • El algoritmo muestra robustez en entornos complejos y posturas diversas.
  • El diseño ligero lo hace adecuado para aplicaciones en tiempo real en la monitorización de la atención médica inteligente y la seguridad.