Spotting A Tree From A Pixel (With Remote Sensing Researchers)

Sheung Yiu

Exposition

Spotting A Tree From A Pixel (With Remote Sensing Researchers) (2022)

Sheung Yiu

open exposition

About this exposition

This exposition contemplates the collaboration between me, a photographer, and remote sensing researchers from the Department of Geoinformatics at Aalto University, in an ongoing artistic research collaboration called Ground Truth. Ground Truth is a photography project about ‘seeing something when there’s nothing there’. Based in the research group’s initial intent to overcome the spatial resolution limits of satellite imagery, the project now investigates new imaging techniques such as computational photography and hyperspectral imaging of forests, while also referencing photography’s love affair with natural landscapes. Such a comparative approach to natural photography has allowed me to offer a vision that typically escapes human sight perception. I open this auto-theoretical text with a personal experience, namely being on a field trip with remote sensing scientist Daniel Schraik. I use this moment to, among other things, articulate my thoughts on the construction of the ‘real’ in different disciplines. I then contemplate the body of interviews and field trips that became a two-year-long interdisciplinary dialogue, and also brought together two distinct ways of looking at the forest: one symbolized by the camera, another by the terrestrial laser scanner. Inspired by remote sensing concepts such as ground truth and the inverse problem, I have come to examine photography through a new analytical framework. In everyday language, the term ‘ground truth’ refers, in part, to a first-hand experience. In our project, it makes sense, then, that Ground Truth connotes the documentary tradition and the act of witnessing. In the language of science, however, and specifically in remote sensing as a field, ground truth means something different. It refers to data collected on-site, which can then be used to calibrate, to build models, to predict, to interpret, and to decipher information from images; in this case, satellite images. Similarly, our interdisciplinary collaboration functions on another operational layer of photography beneath the immediately visible, one that illustrates an expanded notion of photography across contemporary discourse. Ground Truth interweaves archival imagery, documentary photography, experiment dataset, 3D digital art and conceptual photography. The constellation of employed elements contrasts the representational approaches of drawing and photography with the data-oriented and algorithmic approaches of computer-aided seeing. The two modes together allow for a parallel reading of the forest — one that contextualizes different epistemological regimes that allow for new configurations of the relationship between image and reality.

type	research exposition
keywords	photography, hyperimage, remote sensing, VISUAL CULTURE, 3D scanning, computation, algorithmic image, interdisciplinary, artistic research
date	30/12/2022
published	29/12/2022
last modified	29/12/2022
status	published
affiliation	Aalto University
copyright	Sheung Yiu
license	CC BY-NC-ND
language	English
url	https://www.researchcatalogue.net/view/1265334/1869636
doi	https://doi.org/10.22501/jar.1265334
published in	Journal for Artistic Research
portal issue	28. 28
external link	www.sheungyiu.com/ground-truth

Copyrights

name	Schriak
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	Roll67#20_RB67_Field Station Hyytiala_7591_2100ppi_008
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	shooting_20200615_0029_1
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	Daniel_notebook_003-1
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	spherical shoot_subsurf4
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	2_15_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	2_20_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture, picture

name	proc_5258
copyright	Daniel Schraik
license	All rights reserved
usages	picture

name	Roll67#21_RB67_Field Station Hyytiala_7592_2100ppi_001
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	015_Ground Truth_Sheung Yiu
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	V10015_59
copyright	Finnish Forest Museum, LUSTO
license	All rights reserved
usages	picture

name	Example_visual_B567_G653_R867
copyright	Aarni Hovi
license	All rights reserved
usages	picture

name	voxel_projection_6dir
copyright	Daniel Schriak
license	All rights reserved
usages	picture

name	tree2_074tif120320
copyright	Daniel Schraik
license	All rights reserved
usages	picture

name	tree5_265tif120320
copyright	Daniel Schraik
license	All rights reserved
usages	picture, picture

name	tree2_090tif120320
copyright	Daniel Schraik
license	All rights reserved
usages	picture, picture

name	5_11_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	2_53_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	5_7_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	band_2-8-36 combined_false colour
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	Ground Truth_004
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	9_Ground Truth_20210511_Exhibition Scan_002p
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	12_Ground Truth_20210511_Exhibition Scan_001p
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	6_Ground Truth_20210511_Exhibition Scan_009p
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	V06011_12689
copyright	LUSTO (The Finnish Forest Museum)
license	All rights reserved
usages	picture

name	2_1_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	2_1_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	2_5_2
copyright	Aarni Hovi
license	All rights reserved
usages	picture

name	2_10_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	5_1_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	5_5_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	5_10_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	5_15_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	TLS_silhouette
copyright	Daniel Schriak
license	All rights reserved
usages	picture

name	Tree pointcloud sample
copyright	Sheung Yiu
license	All rights reserved
usages	video

name	tree6_314tif120320
copyright	Daniel Schraik
license	All rights reserved
usages	picture

name	2_4_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	fig125
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	5_48_2
copyright	AARNE HOVI
license	All rights reserved
usages	picture, picture, picture

name	6_15_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	6_54_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	6_42_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	6_19_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	2_14_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	5_12_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	2_18_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture

name	tree6_328tif120320
copyright	Daniel Schraik
license	All rights reserved
usages	picture

name	tree5_275tif120320
copyright	Daniel Schraik
license	All rights reserved
usages	picture, picture, picture

name	Ground Truth_043
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	5_11_2
copyright	Aarne Hovi
license	CC BY
usages	picture

name	5_49_2
copyright	Aarne Hovi
license	CC BY
usages	picture

name	Ground Truth Book Excerpt_001
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Book Excerpt_002
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Book Excerpt_003
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Book Excerpt_004
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Book Excerpt_005
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Book Excerpt_006
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Book Excerpt_007
copyright	Sheung Yiu
license	All rights reserved
usages	slideshow

name	Ground Truth Photobook
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	23_spherical shoot_icosphere_highres_p
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	2_1_2
copyright	Aarne Hovi
license	CC BY
usages	picture

name	6_11_2
copyright	Aarne Hovi
license	All rights reserved
usages	picture, picture

name	ground truth_point cloud_view 45_1
copyright	Sheung Yiu
license	All rights reserved
usages	picture

name	film_test
copyright	Sheung Yiu
license	All rights reserved
usages	video

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Spotting A Tree From A Pixel (With Remote Sensing Researchers) (2022)

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