In the multidimensional book Ground Truth, Sheung Yiu\u00a0interweaves archival imagery, documentary photography, experimental data and artistic work, to acquaint the reader with the mathematical models that provide us the tools to \u2018resurrect\u2019 trees from a two-dimensional image. Ground Truth highlights the complexity of seeing in the age of algorithms. What do we see when we are not around? What can we see when there is nothing there? Equipped with the phenomenal power of computation, photography and hyperspectral imaging, a group of scientists set out to approach the boundaries of satellite imaging in the forests of Finland. Using meticulous on-site measurements of physical structures and spectral properties of trees, \u2018ground truth\u2019 data are experimental results to verify the performance of predicting models. Their quest is to develop an improved interpretation model of satellite data for remote sensing research, which allows us to distinguish various features of the surface beyond what is shown optically in satellite imagery. The photographer moves in the forest with scientists and ponders on the relationship between traditional photography and visual technology phenomena. The different elements of the book form a thought-provoking, lively and playful entity.<\/p>\n
Ground Truth<\/em> is the winner of the Finnish Photobook Award 2021.<\/p>\n <\/p>\n