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Procesamiento de Banda LWIR Altum nocturnos

Pix4Dmapper
#1

Hola un gusto saludarles, esperando se encuentren bien.

En una investigación se requiere tomar datos de noche en una zona de cultivo, ese cultivo mide como 30 centimetros aproximadamente, las preguntas son:

  1. Pix4dMapper permite el procesamiento “solo” de la banda termica LWIR de la Micasense Altum? dado que será de noche por supuesto no se tendrá datos multiespectrales, por eso la consulta de si se puede procesar en Pix4dmapper solo la banda termica?

  2. A que altura se recomienda “vola” para que el registro de temperaturas con la camara Altum sea representativa de la temperatura del dosel del cultivo?

Gracias

Eddison

#2

Hi Eddison,

We do not recommend processing thermal images below 640*480. The altum images process okay because they are processed as a rig with the other multispectral bands. The multispectral bands help in the processing of the low-resolution LWIR bands. We do not thus guarantee altum LWIR images will process successfully alone. However, you could try. Keep the image overlap very high (95% frontal and side) and fly at a height of at least 60 m. By flying higher, it will be easier for Pix4D to extract features as there will be more variability than if you fly low.

#3

Hola muchas gracias!!

Eddison

1 Like
#4

Hola de nuevo!

Hay algun estudio que indique a que altura se recomienda “volar” para que el registro de temperaturas con la cámara Altum sea representativa de la temperatura del dosel del cultivo?

Gracias

Eddison

#5

Hello,
There is no study that I could share with you. However, I would suggest you to go through the below article from MicaSense. Best practices: Collecting Data with MicaSense Sensors.

#6

Que lastima no haya estudios!

Gracias

Eddison

#7

Hello Eddison,

There should definitely be some studies in the form of a Journal. I mean we don’t have a detailed study to share with you. As Momtanu suggested, it is the general recommendation that we provide.