PROJECTS

Deep learning for Global Human Settlements Mapping from Satellite Imagery for the period 1984 - 2023

My research focuses on developing deep learning tools to monitor urban areas in response to rapid urbanization's impacts on biodiversity, ecosystems, water, and public health. These tools, using Convolutional Neural Networks, Reinforcement Learning, and Generative Adversarial Networks, aid in addressing challenges and improving decision-making. The project employs Landsat (1985-2022), Sentinel-2 (2016-2022), and Planet Lab (2018-2022) images to segment urban areas using multi-spectral sensor data. The satellite-based urban classification products are crucial for managing global urbanization growth. (Examples: Landsat in resource watch, Sentinel2 in GEE, and Planet in GEE)

Processing Riegl Lidar and Field work

Developing an algorithm to analyze .las files with the goal of segmenting and computing metrics for each tree in the Congo region. Our approach involved using a combination of Python and C++ programming languages, and visualizing the results in R. To maximize processing efficiency, we utilized multiple processors.

Additionally, we collected Lidar-RIEGL data using a M600 drone in agricultural and primary forest locations, including Congo and the US, to determine the biomass and height of each tree in the area. 





pyGEDI

pyGEDI is a high-performance Python package for NASA's Global Ecosystem Dynamics Investigation (GEDI). developed by my brother, Eduin H Serna, and me. The package offers a simplified codebase for extracting, analyzing, processing, and visualizing GEDI data, reducing cognitive load and increasing transparency. Our library has received positive feedback from both GEDI and the scientific community. We also maintain the Twitter account @pyGEDI and respond to queries from the scientific community.

Gladeeptree

I am developing a machine learning system for remote sensing that combines deep learning and decision trees. The decision tree model serves as the foundation for the deep learning architecture, resulting in improved interpretation, precision, performance, and credibility. This hybrid approach allows for better regularization by discarding irrelevant metric configurations and revealing the hierarchical and non-linear relationships between variables. The goal is to create deep learning models that are both interpretable and accurate.

Landsat and G-LiHT 

This dataset displays the annual height of tree cover in meters for South America from 1985 to 2016. The height is estimated using a combination of Landsat satellite imagery and LIDAR data calibration. Please note that this is a preliminary version of the data.

Tree cover height: https://resourcewatch.org/data/explore/UMD-TreeCoverHeight