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9 - Image Data

from Part II - Case Studies

Published online by Cambridge University Press:  29 May 2020

Pablo Duboue
Affiliation:
Textualization Software Ltd.
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Summary

The last chapter using the dataset from chapter 6, this time the dataset is expanded using 80 thousand satellite images obtained from NASA for relative humidity density as it relates to vegetation. This image information is not visible information and thus pre-trained models are not useful for this problem. Instead, traditional computer vision techniques are showcased, involving histograms, local feature extraction, gradients and histograms of gradients. This domain exemplifies how to deal with high level of nuisance noise, how to normalize your features so that a small changes in the way the information was acquired does not completely throws off the underlining machine learning mechanism. These takeaways are valuable for anybody working with sensor data where the acquisition process has a high level of uncertainty. The domain also exemplifies working with large number of low-level sensor data.

Type
Chapter
Information
The Art of Feature Engineering
Essentials for Machine Learning
, pp. 212 - 232
Publisher: Cambridge University Press
Print publication year: 2020

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  • Image Data
  • Pablo Duboue
  • Book: The Art of Feature Engineering
  • Online publication: 29 May 2020
  • Chapter DOI: https://doi.org/10.1017/9781108671682.012
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  • Image Data
  • Pablo Duboue
  • Book: The Art of Feature Engineering
  • Online publication: 29 May 2020
  • Chapter DOI: https://doi.org/10.1017/9781108671682.012
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Image Data
  • Pablo Duboue
  • Book: The Art of Feature Engineering
  • Online publication: 29 May 2020
  • Chapter DOI: https://doi.org/10.1017/9781108671682.012
Available formats
×