Animation Plans for Before-and-After Satellite Images

Submitted to TVCG (2017)

Available Data

A total of 15 before-and-after image pairs were used in the experiment.

The following table provides links to the full-resolution before-and-after images between which the animated transitions occur, as well as video previews of all 4 animation plans tested for each of the 15 trials (60 videos in total).

For each trial, the text in Description corresponds to the instructions seen by participants.

Before-and-after Images and Tested Animation Plans

During the experiment, the animation plans were executed on-the-fly as Java+GLSL code. The table below provides links to videos recorded for each individual animation plan. Clicking a thumbnail will open a preview of the corresponding animation plan. The pop-up also features a link to download the animation (MPEG-4 movie), as seen by the participants (all videos fitting in an 848x545-pixel bounding box).

	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
01
	Description: Paris-Saclay is a scientific and technological cluster 20km away from Paris currently under construction. The earliest settlements are from the 1950s, and this area was subsequently extended several times during the 1970s and 2000s. Several projects are underway to continue the development of the campus. Here we display the evolution of a small part of it between 2008 and 2016, revealing the construction of the Digiteo and PCRI buildings (Source: IGN). Rank the following animations according to --- appearance of these buildings.
	Source: http://professionnels.ign.fr/orthoimages (48°42’46.1"N 2°09’57.3"E)
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: EXPANSION primitive in four steps from the building border
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
02
	Description: To expand the possibilities for beachfront tourist development, Dubai, part of the United Arab Emirates, undertook a massive engineering project to create hundreds of artificial islands along its Persian Gulf coastline. These islands were shaped into recognizable forms, including two large palm trees. The first Palm Island constructed was Palm Jumeirah. We display its evolution from 2000 to 2011. (Source: NASA Earth Observatory). Rank the following animations according --- appearance of the island.
	Source: http://earthobservatory.nasa.gov/Features/WorldOfChange/dubai.php
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: EXPANSION primitive applied to each building part in parallel
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
03
	Description: The Topaz Solar Farm in Central California is one of the largest in the U.S. It consists of 9 million solar panels across 24.6 square kilometers. Construction began in 2012 and was completed in late 2014. We display the evolution between 2011 and 2015. In 2011 the land had been used for agriculture (green blocks). In 2015 the solar installations appear as dark blocks. (Source: NASA Images of change). Rank the following animations according to --- appearance of the Topaz Solar Farm.
	Source: http://climate.nasa.gov/images-of-change?id=541#541-topaz-solar-farm-installation-california
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: DIRECTION primitive applied to each solar panel section in sequence
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
04
	Description: Construction on the Lower Se San 2 Dam is underway on the Tonle Srepok, a tributary of the Mekong River. The dam is expected to generate 400 megawatts of power, but some scientists warn that completion of the dam will reduce the productivity of fisheries and biodiversity in the Mekong River Basin. This pair of images from the NASA/USGS Landsat 8 satellite (December 22, 2014) and Planet (January 15, 2015) shows the rapid progress of construction at the site (Source: Planet Gallery). Rank the following animations according to --- changes in the Lower Se San 2 Dam.
	Source: https://www.planet.com/gallery/ (Lower Se San 2 dam, Cambodia)
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: DEFORMATION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
05
	Description: In the Southern Hemisphere summer of 2002, scientists monitoring daily satellite images of the Antarctic Peninsula watched in amazement as almost the entire Larsen B Ice Shelf splintered and collapsed in just over one month. Here we present its evolution between January 31 and March 7. By March 7, the shelf had disintegrated into a blue-tinged mixture (mélange) of partly-melted snow and icebergs (Source: NASA Earth Observatory). Rank the following animations according to --- changes in the Larsen B Ice Shelf.
	Source: http://earthobservatory.nasa.gov/Features/WorldOfChange/larsenb.php
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: MORPH primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
06
	Description: In the 1960s, the Soviet Union undertook a major water diversion project on the arid plains of Kazakhstan, Uzbekistan, and Turkmenistan. The region’s two major rivers, fed by snowmelt and precipitation in faraway mountains, were used to transform the desert into farms for cotton and other crops. Before the project, the rivers flowed down from the mountains and made the Aral Sea, once the fourth largest lake in the world. Although irrigation made the desert bloom, it devastated the Aral Sea. We present the evolution between August 2000 and August 2010. (Source: NASA Earth Observatory). Rank the following animations according to --- changes in the Aral Sea.
	Source: http://earthobservatory.nasa.gov/Features/WorldOfChange/aral_sea.php
	Implementation of Separate condition: BG first
	Implementation of Progressive condition: DEFORMATION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
07
	Description: China has placed runways and radar facilities on new islets in the South China Sea, built by piling huge amounts of sand onto reefs. China has focused its efforts on building ports, three airstrips, radar facilities and other military buildings on the islands. We present the building evolution of one island between December 2014 and February 2015. (Source: The New York Times). Rank the following animations according to --- new island's growth.
	Source: http://www.nytimes.com/interactive/2015/07/30/world/asia/what-china-has-been-building-in-the-south-china-sea-2016.html?_r=0
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: EXPANSION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
08
	Description: Below the densely forested slopes of the Appalachian Mountains in southern West Virginia in the United States, there is coal under layers. To uncover this coal profitably, mining companies engineer large surface mines. We display the growth of the Hobet mine from 1984 to 1986. The natural landscape of the area is dark green forested mountains, creased by streams and indented by hollows. The active mining areas appear off-white, while areas being reclaimed with vegetation appear light green. (Source: NASA Earth Observatory). Rank the following animations according to --- growth of the Hobet mine.
	Source: http://earthobservatory.nasa.gov/Features/WorldOfChange/hobet.php
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: EXPANSION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
09
	Description: The Paraguay-Parana River system is the second largest river system in South America — second only to the Amazon. More than 100 million people and some of the rarest species on Earth depend on its waters for survival. We display the evolution between 1985, shortly after construction began on the Yacyreta Dam, a joint hydroelectric project between Paraguay and Argentina, and June 2010. River levels rose dramatically upon completion of the dam, initially displacing 15,000 residents and endangering the homes of 800,000 more (Source NASA: Images of change). Rank the following animations according to --- river levels rise.
	Source: http://climate.nasa.gov/images-of-change?id=335#335-yacyreta-dam-impact-paraguay
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: EXPANSION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
10
	Description: Goose Lake is one of several lakes on the California-Oregon border that come and go as the amount of water available to fill them changes. We display its evolution through one image taken in 2013, where the lake is relatively full, and another image taken in 2015, where it has completely dried out (Source: NASA Images of Change). Rank the following animations according to --- drying out of Goose Lake.
	Source: http://climate.nasa.gov/images-of-change?id=555#555-oscillating-goose-lake-california-oregon-border
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: CONTRACTION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
11
	Description: The tiny offshore island of Monuafe has eroded and receded into the ocean. Twenty-five years ago, Monuafe was a healthy islet that supported a diverse flora of plant life. It was one of many tiny islands that sat in the bay of Nuku’alofa and although the island was small (0.3 km square or half a rugby field) it supported 30 different species of plants including Pandanus and Hibiscus trees (Source: Eturbonews). Rank the following animations according to --- erosion of Manuafe Island.
	Source: https://www.google.fr/intl/en/earth/ (21°06’17"S 175°08’26"W)
	Implementation of Separate condition: BG first
	Implementation of Progressive condition: MORPH primitive for the sand region and CONTRACTION primitive for the green region
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
12
	Description: Lake Poopó, Bolivia’s second-largest lake and an important fishing resource for local communities, has dried up once again because of drought and diversion of water sources for mining and agriculture. The last time it dried up was in 1994, after which it took several years for water to return and even longer for ecosystems to recover. Its shallow depth — typically no more than 3 meters — makes it particularly vulnerable to fluctuations. We display the lake's evolution between April 2013 and January 2016. (Source: NASA Images of Change). Rank the following animations according to --- drying of the lake Poopó.
	Source: http://climate.nasa.gov/images-of-change?id=565#565-drying-lake-poop,-bolivia
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: MORPH primitive followed by a CONTRACTION primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
13
	Description: Located about 200 kilometers southeast of Los Angeles, in a heavily farmed area of the Sonoran Desert, the Salton Sea is California’s largest lake. It was formed by accident in the early 1900s, when water diverted from the Colorado River broke through canal gates and filled the low-lying basin — continuing a long history of drying and filling. We display its evolution through two infrared images, the first one taken on May 31, 1984 and the second one taken on June 14, 2015 (Source: NASA Earth Observatory). Rank the following animations according to --- Salton Sea's receding shoreline.
	Source: http://earthobservatory.nasa.gov/IOTD/view.php?id=86746
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: MORPH primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
14
	Description: The Columbia Glacier descends from an ice field 3,050 meters above sea level in southeastern Alaska. It is one of the most rapidly changing glaciers in the world. These false-color images, captured by Landsat satellites, show how the glacier and the surrounding landscape has changed from August 2002 to September 2003 (Source: NASA Earth Observatory). Rank the following animations according to --- retreat of the Columbia Glacier.
	Source: http://earthobservatory.nasa.gov/Features/WorldOfChange/columbia_glacier.php
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: MORPH primitive
	Before	After	ROI	Uniform - Concurrent	Uniform - Separate	Progressive - Concurrent	Progressive - Separate
15
	Description: More than half of Iceland's numerous ice caps and glaciers lie near or directly over volcanoes. Seen here is Mýrdalsjökull, Iceland's fourth largest ice cap, which covers the Katla volcano at the country's southern tip. The images display how these glaciers evolved between September 1986 and September 2014. Some of the visible changes are due to volcanic activity but also most of the monitored glaciers have been shrinking since the 1990s, including Sólheimajökull (lower left), which has been retreating as much as 50 meters per year (Source: NASA Images of change). Rank the following animations according to --- shrinkage of these ice caps and glaciers.
	Source: http://climate.nasa.gov/images-of-change?id=535#535-shrinking-mrdalsjökull-ice-cap,-iceland
	Implementation of Separate condition: ROI first
	Implementation of Progressive condition: CONTRACTION primitive

Last modified: 2017-11-07T10:51:43.982+01:00