Error que indica en banda LWIR Altum

PIX4Dmapper
1

Hola! un gusto saludar!! espero se encuentre bien!

Estoy procesando datos de la cámara Micasense Altum y me da ese error:

[Error]: Generating tiles failed!
[Error]: >>>Generating tiles<<< failed with error (failed to run a step!)!
[Error]: >>>Generating tiles<<< failed with error (failed to run a step!)!
[Error]: Processing group LWIR failed!
[Error]: >>>Processing group LWIR<<< failed with error (failed to run a step!)!
[Error]: >>>Processing group LWIR<<< failed with error (failed to run a step!)!
[Error]: Dense Processing failed!
[Error]: >>>Dense Processing<<< failed with error (failed to run a step!)!
[Error]: >>>Dense Processing<<< failed with error (failed to run a step!)!
[Error]: Dense matching failed!
[Error]: >>>Dense matching<<< failed with error (failed to run a step!)!
[Error]: >>>Dense matching<<< failed with error (failed to run a step!)!

Agradezco la ayuda, saludos

Eddison

2

Hello Eddison,
Can you attach the project log file as well as the quality report? These will tell us much about your project and what might be going on. We will take a look at them and see what we can do.

3

Hola muchas gracias por su amable respuesta.

Adjunto los datos y gracias por su ayuda

Gracias

Eddison

08_02_22_PRIMER_VUELO_8_33_AM_sin_paso2.log (2.2 MB)

08_02_22_PRIMER_VUELO_8_33_AM__report.pdf (899.6 KB)

4

Thank you for uploading. I believe the problem has to do with your image acquisition. There appears to be inconsistencies with the image overlap. The images should be at a very regular intervals. In your case the images appear to have a very random spacing and as a result the overlap will be inconsistent.

flight_path
flight_path306×874 32 KB

This can be a big problem with thermal bands since the resolution of thermal is very low. When trying to create thermal maps we recommend using very high overlap. Perhaps 90% both frontal and side.
I hope this helps.

6

Hola muchas gracias.

  1. Hemos volado a 30 metros sobre un cultivo de frijol, nos interesa determinar con precisión las temperaturas
  2. El traslape usado tanto en DJI Pilot (Matrice 210) como en la configuración de la cámara Altum fue 30 metros con solape del 80 %.

¿En ese caso la única recomendación es aumentar el solape un 10 % mas?

Gracias

Eddison

7

80% might be fine but your image acquisition is inconsistent. The blue dots are where the images were taken. They should be at very regular intervals. Instead they are grouped tighter in areas and in other areas the gaps are bigger. So your overlap varies throughout your project. This will cause problems.

I suggest reflying and increase to 90% and make sure the overlap is consistent throughout your project.

8

Hola!! gracias, lo extraño es que hemos revisado los parámetros en la cámara Micasense Altum en http://192.168.10.254 y los parámetros están bien… se indica claramente un traslape de 80 % a 30 metros de altura.

¿Que estará pasando con la captura de imágenes con la Altum? que la toma a intervalos no regulares?

Gracias

Eddison

9

The image exif tags clearly indicate irregular spacing of the images. Because thermal resolution is very low it requires the overlap to be 90% in order for sufficient keypoint to be generated. Because there are gaps the overlap will drop in those areas.
Please reference our support article on how to process thermal imagery:

10

Si entiendo perfectamente! pero algo pasa con la Altum entonces… dado que no está tomando las fotos de manera regular… con el traslape que se le ordena.

Muchas gracias

Eddison