Publication: The need of samples and how to generate them for crop type classification

New publication is now open-access in the International Journal of Applied Earth Observation and Geoinformation! We propose a methodology based on dynamic time warping and random forest to automatically generate crop type samples needed for supervised classification. Check out the paper at the link below! Belgiu, M., Bijker, W., Csillik, O., Stein, A., 2021, Phenology-based sample generation for supervised crop …

Publication: Tracking carbon near-real time

New publication is now open-access in PLoS ONE: Near-real time aboveground carbon emissions in Peru This study used Planet Dove quarterly and monthly mosaics in combination with airborne LiDAR measurements of canopy height in order to estimate the aboveground carbon stocks over multiple time periods and then used the IPCC stock-difference method to obtain the carbon emissions at yearly, quarterly, …

Publication: Canopy height estimation from Planet images

New article that tackles the challenges of estimating canopy height from spectral and textural information from Planet Dove images is now published in Remote Sensing (click to access): Csillik, O.; Kumar, P.; Asner, G.P. Challenges in Estimating Tropical Forest Canopy Height from Planet Dove Imagery. Remote Sens. 2020, 12, 1160. This work can be a helpful advancement towards better monitoring of tropical forests, …

Publication: Gold mining impacts in the Peruvian Amazon

The article published on January 14, 2020, in Environmental Research Letters, presents an approach for monitoring the aboveground carbon emissions in Madre de Dios, Peru, in an area highly affected by the gold mining activities, most often illegal and small-scale. We used Planet imagery, Sentinel-1 radar images, topography and airbone Lidar within a neural network framework to estimate how much …

Publication: Monitoring tropical forest carbon emissions with Planet data

You can access the publication on Nature’s Scientific Reports webpage. Csillik, O., Kumar, P., Mascaro, J., O’Shea, T. and Asner, G.P., 2019. Monitoring tropical forest carbon stocks and emissions using Planet satellite data. Scientific Reports, 9(1), 17831. We have developed a method to monitor carbon emissions from tropical forests at an unprecedented level of detail. The approach will provide the basis for …

Publication: Object-based dynamic time warping for crop mapping

A new paper is now published in Remote Sensing journal (open-access). It uses Sentinel-2 time series of vegetation indices to extract temporal pattern for crops in highly managed agricultural areas in Texas and California. It uses the dynamic time warping algorithm to match the highly heterogeneous patterns of crops and test multiple time constrained on DTW. We applied the analysis …

Publication: Using deep learning to detect citrus trees

A new publication is now open access in Drones, a new MDPI journal. This is the first open peer-review publication for this journal, meaning that you can access the review reports and the responses to reviewers. This paper is a result of a great collaboration that was a result of my research stay at UC Berkeley in 2017, where this …