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Lesson 1: Interpreting Advertisements (Part A)

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Lesson 1: Interpreting Advertisements (Part A)

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Read the infographic on the web page, and take notes on the key ideas about visual image interpretation. Be prepared. to share and discuss via FlipGrid

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Visual perception, i.e. looking at the environment, is an everyday experience for most of us. This ability has to be used for remote sensing as well. Image objects and structures have to be recognised and interpreted. Different factors influence the eye of the beholder, e.g. size, shape and position of objects as well as contrast and colour saturation of an image and the previous knowledge of the perceiving person.

Crescentic dune (Barchan)

The shape is formed by constant wind with unchanged wind direction. The smaller ends of the sand dune are moving faster than the main dune and thus the characteristic semilunar structure is formed.

Longitudinal dune (Seif)

Constant unidirectional wind forms the longish shape of the dune. The side facing the wind is wider and higher than the other side. These dunes can be several kilometres long.

Star dune

Changing wind directions lead to huge sand forms. The sand is reallocated again and again leading to a new formation.

Different shapes of dunes, schematic illustration vs. satellite image. The arrows stand for the main wind direction.
The figure above shows the different shapes of dunes. Knowing the ideal-typical scheme, one can find out that the satellite image shown above depict dune formations. Which kind of dune is prevailing can be found out at a second glance. This information can be used to derive the main wind directions.

How do we structure visual image interpretation?

Visual image interpretation is best-structured if organized in three stages:

1. General areas (settlement / tree-covered / open space / water bodies)

2. Similar areas (fields / grassland / speciality crops / mixed)

3. Single objects (plant species / fallow land / vegetation density)

Schematic illustration of visual interpretation by the example of Doha, capital city of Qatar (input data: NASA).

The procedure of image interpretation is carried out as seen above: First of all, one has to search for boundaries between different kinds of areas or colours. We have highlighted them in the second image. Then, finer structures, i.e. smaller image sections, are focused upon. The third image shows streets (yellow) or industrial spaces (violet) as examples.

You can try to visually interpret the images below yourself:

Left: Syr Darya, Kazakhstan, right: Minnesota, USA (© NASA)

How to obtain indirect information

The image below depicts the Cologne Cathedral (Kölner Dom) from a bird's eye view. At a first glance, we can collect information on shape, area and surroundings of the building. A second glance reveals the height of the object as well: The cast shadow of the object is used to calculate the height. It is apparent how the steeples and the nave vary in size; this would not be visible without the shadow.

Aerial image of the Cologne Cathedral. The length of the shadow combined with the solar altitude can be used to determine the height of the cathedral indirectly. (© Google Earth ).

In order to determine the height correctly, the angle of incidence of the sun has to be known, or the height of a reference object (like a fountain) as well as the length of its shadow. Then the height can be calculated, by using either a trigonometric function or the theorem of intersecting lines. Thus, indirect image interpretation supports quantitative and qualitative statements about the depicted objects.
Conclusion:
Visual image interpretation is a first analysis approach to remote sensing imagery. Here, the size, shape, and position of objects as well as the contrast and colour saturation are analysed. The height of objects can be determined by indirect visual analysis.

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Visual perception, i.e. looking at the environment, is an everyday experience for most of us. This ability has to be used for remote sensing as well. Image objects and structures have to be recognised and interpreted. Different factors influence the eye of the beholder, e.g.

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How do the elements of the image show a relationship to communicate ideas?

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Lesson 1: Interpreting Advertisements (Part B)

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Lesson 1: Interpreting Advertisements (Part B)

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1. How is the visual image structured? 2. Make an inference of why you think the author chose this social issue. Why is it important?

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Lesson 1: Interpreting Advertisements (Part C)

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Lesson 1: Interpreting Advertisements (Part C)

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Lesson 1: Interpreting Visual Images (Part D)

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Lesson 1: Interpreting Visual Images (Part D)

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How do the visual elements (shape, size, position, color, contrast, saturation) of the advertisement help to communicate a message?

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VIDEO: 'Don't Do It': Nike releases powerful ad amid George Floyd crisis | Daily Mail Online

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Nike released this powerful advertisement calling out racism and injustice in America, as the country is roiled by protests and riots sparked by the death of George Floyd.

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Lesson 2: Analyzing Political Cartoons (Part A)

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Lesson 2: Analyzing Political Cartoons (Part A)

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Capture notes on key ideas and concepts from the video. Be prepared to discuss what you learned via FlipGrid.

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Lesson 2: Analyzing Political Cartoons (Part B)

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Lesson 2: Analyzing Political Cartoons (Part B)

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1. Identify the people shown in the cartoon. Why are they drawn the way they are?

2. Identify the symbols used in the cartoon and what they mean.

3. Explain what the cartoon is saying and why. Tie the cartoon to its historical context.

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Lesson 2: Analyzing Political Cartoons (Part C)

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Lesson 2: Analyzing Political Cartoons (Part C)

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1. Identify the elements that classify this image as a political cartoon
2. Describe the symbolism of the cartoon.
3. What is the social justice issue being conveyed through the image?
4. What is the cartoonist's opinion?

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Lesson 4: Synthesizing News Media (Part B)

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Lesson 4: Synthesizing News Media (Part B)

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1. Select visual media about a social justice issue.
2. Watch and evaluate the visual media using the graphic organizer embedded into lesson 4 page.
3. Upload the attachment to the assignment collector in google classroom.

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HuffPost - Breaking News, U.S. and World News

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Read the latest headlines, news stories, and opinion from Politics, Entertainment, Life, Perspectives, and more.

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Lesson 4: Synthesizing News Media (Part A)

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Lesson 4: Synthesizing News Media (Part A)

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1. Choose and article with visual images and corresponding visual media to interpret and analyze.
2.Record the visual elements and be sure prepared to report via flip grid.

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Breaking News, Latest News and Videos | CNN

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View the latest news and breaking news today for U.S., world, weather, entertainment, politics and health at CNN.com.

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Lesson 2: Analyzing Political Cartoons (Part D)

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Lesson 2: Analyzing Political Cartoons (Part D)

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1. Upload a political cartoon surrounding a topic that sparks your interest.
2. Identify the visual elements of the political cartoon.
3. Identify and describe the characteristics that classify your chosen image as a political cartoon.
4. Explain the symbolism of the political cartoon.