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Descriptive Camera prints out descriptions of pictures, not pictures themselves

Cory Doctorow at 6:01 pm Wed, Apr 25, 2012

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Matt Richardson's "Descriptive Camera" sends your pictures to Amazon's Mechanical Turk and jobs out the task of writing a brief description of each image, then outputs the text on a thermal printer. It's a camera that captures descriptions, not pictures.


The technology at the core of the Descriptive Camera is Amazon's Mechanical Turk API. It allows a developer to submit Human Intelligence Tasks (HITs) for workers on the internet to complete. The developer sets the guidelines for each task and designs the interface for the worker to submit their results. The developer also sets the price they're willing to pay for the successful completion of each task. An approval and reputation system ensures that workers are incented to deliver acceptable results. For faster and cheaper results, the camera can also be put into "accomplice mode," where it will send an instant message to any other person. That IM will contain a link to the picture and a form where they can input the description of the image.

The camera itself is powered by the BeagleBone, an embedded Linux platform from Texas Instruments. Attached to the BeagleBone is a USB webcam, a thermal printer from Adafruit, a trio of status LEDs and a shutter button. A series of Python scripts define the interface and bring together all the different parts from capture, processing, error handling, and the printed output. My mrBBIO module is used for GPIO control (the LEDs and the shutter button), and I used open-source command line utilities to communicate with Mechanical Turk. The device connects to the internet via ethernet and gets power from an external 5 volt source, but I would love to make a another version that's battery operated and uses wireless data. Ideally, The Descriptive Camera would look and feel like a typical digital camera.

Descriptive Camera, 2012 (via Kottke)

I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.

MORE:  camera • crowdsourcing • Gadgets • happy mutants • mechanical turk • web theory

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  • Spinkter

    Very New Aesthetic-y.

  • perch

    He should develop an app or alternative device using the same Mechanical Turk Interface as an aid to visually-impaired people. Images could perhaps be converted to braille or spoken-word.

    Also, is there an Image Quality: Haiku option?

    • Just_Ok

      or smells.

    • http://twitter.com/joshberkbooks Josh Berk

      I do like the idea of this providing work for unemployed poets. People could walk around with a camera & get poetry written about their day-to-day.

  • mtdna

    This will never be abused by pornographers. Now, excuse me while I take my pants off…

  • Just_Ok

    Is there a thousand word limit on the output?

  • http://www.sriplaw.com/ Joel Rothman

    I love this so much I cannot contain myself!

  • voiceinthedistance

    Will it allow you to delete word photos where it says my eyes were closed?  I wonder if the descriptions get coarse and grainy in low light?

    • Just_Ok

      just use Find/Replace, don’t forget to do it for red eye too.

  • http://twitter.com/365daysofprint Maya Elise Jo-Go

    Seems someone was inspired by Alredo Jaar — who exhibited his photographs of Rwanda in a box and only showed descriptions on the wall. 

  • Ambiguity

    I can’t quite put my finger on it (and it seems to be just me), but I find the whole mechanical turk thing somewhat disquieting. 

    • http://stephan-zielinski.com/ Stephan Zielinski

      RETURN TO YOUR ASSIGNED TASK UNIT #8329475 OR YOU WILL FACE DISCIPLINE

    • Tynam

      It’s not just you.  It’s disturbing because it brings you directly in contact with the sweatshop nature of much of the world’s economy.

      • http://profile.yahoo.com/QNFAASYQIACLZVSKDBFN7TCRKQ Justin Case

        dont knock it until you try it. i play around with mturk as a worker and can easily make $60/hr .. hardly sweatshop nature.

  • http://twitter.com/anderalert Pat Eisel

    “Hey, I know, he can make a voice recorder output a description of what is being said instead of the actual sound!” “Like Dragon Dictation?” “Exactly!” “Dipshit.”

  • http://twitter.com/anderalert Pat Eisel

    Seriously, though. I don’t think I get it. If it’s art, I freakin love it to pieces. It’s the kind of thing me and my artsy buds did in the late ’80s but a bunch lower tech. If it’s for a practical use, I’m lost.

  • Robert

    That’s awesome. You know why? Because it’s a HIT that’s doesn’t feed into a spam network.

  • http://twitter.com/TimmoWarner Timmo Warner

    To me this seems like it would be much more pratical as a smart phone app rather than its own camera. Does it really need to output a paper copy of the photo? Wouldn’t saving a text description to your phone’s photos be enough?

    I would love to have this as an app.

  • Just_Ok

    Sokath, his eyes uncovered!

    • penguinchris

      Temba, his arms wide! (liked!)

  • nem0fazer

    that’s like having a car that describes other places rather than driving you there.

  • hacky

    a mechanical turk, being run by Mechanical Turk! too cool!

    • voiceinthedistance

      Is it fair to describe the Mechanical Turk as an Ottoman Automaton?

  • http://imcravingpresidency.tumblr.com/ SedanChair

    They should call it the Zorkinator.

  • http://www.aldenbates.com/ Alden

     I would buy one if it automatically added “You are likely to be eaten by a Grue.” to the end of every description.

  • gd23

    Hmm, this has given me an idea for a video version as a way to replace  seeing eye dogs… A pair of video glasses/webcam, and earpiece, and some cheap outsourced labour…

    • John Harland

      No way. It’d end up like that old kids TV show, Knightmare.

      “You need to go left, right?”
      “Go right? OK!” *falls into pit*

  • Tyler Riddle

    Good to know there are now more ways to use up thermal paper because printing onto thermal paper removes thermals from the atmosphere and fixes global warming! 

  • http://www.hanselman.com/ Scott Hanselman

    But no ALT tag on the main picture?

  • Mark Littlewood

    You should also look at @textinstagram on Twitter. Not sure if @textinstagram is a piss taking parody or if it Mechanical Turked too.