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Posts Tagged ‘Depression’

Instagram profiles reveal user depression in new machine learning study

19 Aug

A team of researchers with the University of Vermont and Harvard have published a new study detailing Instagram profiles and the hidden clues they may hold about the photographer’s mental state. Using machine learning, the team was able to identify signs of depression based off an Instagram profile’s photos, metadata, and things like facial recognition. The study looked at 43,950 photographs from 166 individual Instagram users, and had a 70-percent accuracy rate when identifying users with clinical depression.

The artificial intelligence system ultimately proved more capable of detecting depression than general practitioners, which have been found to have somewhere around a 42% accuracy rate. Hints about the photographer’s mental state lie in many things the researchers refer to as ‘markers’: the type of lighting used in the photographs, for example, and the colors of filters applied to photos. 

Dark and gray colors are often signs of depression, as well as gap in posting frequency which may indicate a depressed mental state. The number of times a photo is ‘liked’ and commented on, as well as the number of faces detected in the photos, are also notable markers. Interestingly enough, the study found that depressed Instagram users are less likely to use any photo filter, but if they do, they tend to go with ‘Inkwell.’

Via: Digital Trends

Articles: Digital Photography Review (dpreview.com)

 
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Hell on Earth: Shooting in the Danakil Depression

23 Jan

Hell on earth. It sounds like hyperboly, but the Danakil Depression is exactly that. In late 2013 I spent 1.5 months traveling extensively in Ethiopia, and I visited the Danakil to scout locations for my ‘Earth, Wind and Fire’ workshop. It is, by my own experience, one of the most inhospitable environments you can actually visit. Scorching heat, no roads, no running water, not to mention hotels or any other modern convenience. But it is exactly these qualities which make the Danakil Depression one of the most fascinating places to visit on the planet.

Located in the north of the Afar Triangle, a geological depression formed by tectonic plates that are slowly ripping the earth apart, the Danakil Depression is very low in altitude (about 100 meters below sea level), dry (rain is extremely rare) and hot – so hot that it’s famous for being the hottest place on earth in terms of year round average temperatures. Moreover, reaching it requires a day long drive through the desert, which is both expensive and exhaustingly uncomfortable. But it’s worth the effort, because this area holds invaluable treasures for the avid photographer.

Our journey to the Danakil. Temperatures soared up to 48 degrees Centigrade, and the dust made it quite hard to shoot.

Upon reaching the Danakil after a long drive, one is immediately struck by the vastness of this wasteland. apart of the odd tree and tribal village, there isn’t much else around. This makes sense, since little could survive here, but the few humans that do are quite special.

Arid, seemingly Martian red hills, dry, cracked rock formations, wide salt lakes, fluorescent green pools of sulfuric acid, and of course, the mighty Erta Ale volcano are the main photographic attractions in the Danakil Depression. In this article, I will try to survey them from a photographic point of view, and perhaps make you think differently about Ethiopia and its natural treasures.

A young Afar tribesman. Life is incredibly hard in the Danakil Depression, and the Afar are a hardy folk, farming, mining salt and herding goats for a living. Their appealing appearance and feisty temper, together with the environment they live in, make them unique photographic subjects. 
Canon 5D Mark III, Tamron 24-70mm F2.8 VC

The primary means of interaction between the Afar region and the rest of Ethiopia (and the world) is the endless salt caravans, consisting mainly of camels and donkeys, loaded with heavy bricks of salt – the main natural resource in this area. The caravans are very photogenic, both for their sheer size (the most common response I get to my shots is “surely you’ve duplicated the camels in Photoshop!”) and the landscape they march across.

This was just a part of a longer salt caravan on its way back to the Afar region.
Canon 5D Mark III, Canon 70-300mm F4-5.6L IS

After a night’s sleep under the stars, we started the journey to Erta Ale volcano. I was extremely excited to visit Erta Ale after seeing a few shots from there. The 3-hour hike up the volcano was a bit strenuous, but since it was done at night, it wasn’t too demanding for any of the hikers. Nearing the top, I started sensing faint odors and noises. When I reached the campsite, the bright smoke was clearly visible. I couldn’t resist taking an image of the distant smoking pit and the clear, starry sky.

Erta Ale volcano crater as seen from the campsite.
Canon 5D Mark III, Tamron 24-70mm F2.8 VC

Rising 613 meters, Erta Ale hosts one of only a handful of permanent lava lakes in the world. The name “Erta Ale” means “smoking mountain” in the local Afar language, and it fits this name quite well. It is also notable for being the longest-existing lava lake, present since the early years of the twentieth century.

I knew visiting and shooting this unique place would be very special, but I couldn’t quite foresee the level of excitement I would reach upon getting close to it. In my travels I’ve seen some wonderful natural wonders, but seeing a huge crater, full of red hot, bubbling, exploding lava was one of the most powerful experiences I’ve had so far.

It wasn’t easy shooting the pit itself. The lava is searingly hot and its brightness changes constantly, and the foreground is much darker, requiring HDR technique to reveal its details. Moreover, the pit is very large, and even with a 14mm lens I found it hard to include all of it. If I had tried to step back a bit, I’d have to lose detail in the lava area, since I’d be looking at it from further away.

Erta Ale Volcano up close. Canon 5D Mark III, Samyang 14mm F2.8, manual HDR from 2 images

After several trials, I reached a position I was comfortable with, and shot the lava pool together with the serrated volcanic rock surrounding it. The red glow defined the contour of the pit’s edges, contributing even further to the hellish look. It can’t be conveyed here, but believe me – the smell matched the appearance of the pit perfectly.

After spending the night in the campsite near the volcano, we began our descent to the jeeps. Within an hour’s drive, we reached another spectacular location: the sulfur lake. Colors unlike I’d ever seen before, mineral nozzles spewing hot water, crisp red earth and a feeling of another planet are all offered by the second of the two top locations in the Danakil Depression. What’s left to do is put on a polarizing filter and, well, start the photo-party. The formations and colors are endless.

I especially enjoyed shooting the pools of sulfuric acid, with their surreal bright green color against the red earth.

There is much more to see in the Danakil Depression. From tranquil, shallow salt lakes to red, Martian-like hills and rock fields, this region is home to some of the most unique topography on our planet. Hard to reach and inhospitable as it is, I wouldn’t visit Ethiopia without stopping there to appreciate and photograph a true hell on earth, but a most beautiful and majestic one.


Erez Marom is a professional nature photographer, photography guide and traveler based in Israel. You can follow Erez’s work on Instagram, Facebook and 500px, and subscribe to his mailing list for updates.

If you’d like to experience and shoot some of the most fascinating landscapes on earth with Erez as your guide, you’re welcome to take a look at his unique photography workshops around the world:

Land of Ice – Southern Iceland
Winter Paradise – Northern Iceland
Northern Spirits – The Lofoten Islands
Giants of the Andes and Fitz Roy Annex – Patagonia
Tales of Arctic Nights, Part I and Part II – Greenland
Earth, Wind and Fire – Ethiopia

Selected articles by Erez Marom:

  • Behind the Shot: Dark Matter
  • Mountain Magic: Shooting in the Lofoten Islands
  • Behind the Shot: Nautilus
  • Behind the Shot: Lost in Space
  • Behind the Shot: Spot the Shark
  • Quick Look: The Art of the Unforeground
  • Behind the Shot: Watery Grave
  • Whatever it Doesn’t Take
  • Winds of Change: Shooting changing landscapes
  • Behind the Shot: Prince of the Night

Articles: Digital Photography Review (dpreview.com)

 
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Anime Reloaded – Depression

10 Nov

Saya warns us on the danger signs of “Depression” in this latest PSA. Anime Reloaded is a comedic spin on a classic anime title. Think MST3K meets Monty Python. We take Blood: The Last Vampire’s Saya and feature her in a series of hilarious Public Service Announcements. Featuring the voice talents of YouTube’s LisaNova and KassemG. Visit www.manga.com to see them all!