Search Results for author: Steven Hancock

Found 3 papers, 1 papers with code

Comparing remote sensing-based forest biomass mapping approaches using new forest inventory plots in contrasting forests in northeastern and southwestern China

no code implementations24 May 2024 Wenquan Dong, Edward T. A. Mitchard, Yuwei Chen, Man Chen, Congfeng Cao, Peilun Hu, Cong Xu, Steven Hancock

We then applied LightGBM and random forest regression to generate wall-to-wall AGB maps at 25 m resolution, using extensive GEDI footprints as well as Sentinel-1 data, ALOS-2 PALSAR-2 and Sentinel-2 optical data.

Forest aboveground biomass estimation using GEDI and earth observation data through attention-based deep learning

no code implementations6 Nov 2023 Wenquan Dong, Edward T. A. Mitchard, Hao Yu, Steven Hancock, Casey M. Ryan

AU-FC achieved intermediate R2 of 0. 64, RMSE of 44. 92 Mgha-1, and bias of -0. 56 Mg ha-1, outperforming RF but underperforming AU model using spatial information.

Earth Observation

Arbitrarily large iterative tomographic reconstruction on multiple GPUs using the TIGRE toolbox

1 code implementation8 May 2019 Ander Biguri, Reuben Lindroos, Robert Bryll, Hossein Towsyfyan, Hans Deyhle, Richard Boardman, Mark Mavrogordato, Manjit Dosanjh, Steven Hancock, Thomas Blumensath

Tomographic image sizes keep increasing over time and while the GPUs that compute the tomographic reconstruction are also increasing in memory size, they are not doing so fast enough to reconstruct the largest datasets.

Distributed, Parallel, and Cluster Computing

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