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Education Technology

'Hologram' Lecturers To Teach Students at Imperial College London (bbc.com) 57

Imperial College London will be using holograms of lecturers to teach students from afar. "Imperial will initially limit its use to its Business School's activities but expects the technology could eventually become common," reports the BBC. From the report: Strictly speaking, the illusions are not holograms but neither are they the Pepper's Ghost effect used by politicians including French presidential candidate Jean-Luc Melenchon and India's Prime Minister Narendra Modi as well the entertainment industry. Instead, they use a technique developed by a Canadian company, Arht Media. "The problem with Pepper's Ghost is that it can be intricate to set up and can cost about $200,000 to run an event," said Dr David Lefevre, director of Imperial's Edtech Lab. "This is simpler -- you project upon a glass screen, and a backdrop behind it uses software to give it an illusion of depth. "It runs at the low thousands each time, so for the first time universities can afford it." To send their image, lecturers need to use a "capture studio," which involves filming them against a black backdrop while being lit from both sides.
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'Hologram' Lecturers To Teach Students at Imperial College London

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  • NOT holograms (Score:2, Insightful)

    by Anonymous Coward

    Could people PLEASE stop calling these 2d projections 'holograms' and learn what an actual hologram is??

    • by Z34107 ( 925136 )

      Could people PLEASE stop calling these 2d projections 'holograms' and learn what an actual hologram is??

      This. So much this. For reference, here's a list of things that are holograms:

      • Tupac
      • The Emergency Medical Hologram
      • That little sticker on my driver's license
      • That one phone made by the company with the cameras
      • Your girlfriend

      Tthings that are not holograms:

      • Hatsune Miku
      • Guest lecturers
      • My girlfriend
      • 37% of the migrant caravan (as of last counting)
    • Not Science... You are asking far FAR too much of such a department (and probably too much of both the administration and a science department also, sadly..).

      They should however not be doing this on the basis that there is little or no cost/return benefit over using a standard camera/big screen (ie: video conferencing).

      This is just gimmickry.. not the BEST thing to be promoting to business students (or perhaps it is, teach them how to extract money from over-funded universities with BS ideas..)

    • is there something wrong with just saying pepper's ghost

    • by jools33 ( 252092 )

      Which is kind of strange given that Imperial college pretty much invented holography (Dennis Gabor's work there).

  • The point? (Score:3, Insightful)

    by Anonymous Coward on Thursday November 01, 2018 @08:38PM (#57578544)

    Unless something radical happened lectures tend to just be some guy droning on about a subject, often as not with his back to the audience so he can read off the power-point presentation. How does this benefit from being in pseudo 3D?

    • My thoughts as well. The novelty effect will only last a short time. And it isn't like he can see and interact with the students like they are there too.
      Most colleges have smart boards and projectors. What can you do with all this to enhance learning, that you couldn't do over skype onto a projection in front of the class?

    • Because technology. WOOP WOOP!! Some head at the school probably had to spend money on some new technology upgrades to keep the school at the cutting edge of ...whatever. Seems pretty standard that every piece of electronics in the world has to be upgraded into oblivion every few years, even something as trivial as cables (don't get me started on software).
  • by MpVpRb ( 1423381 ) on Thursday November 01, 2018 @08:49PM (#57578584)

    The University of You Tube

    With YouTube, I can pause, watch again, skip the parts I found easy, repeatedly watch the challenging parts

    Real time learning is non-optimal

    • Real time learning allows you to ask questions.
    • For a _small class size_ real time learning is actually very effective where the students and professors interact with each other.where students can give feed back if a particular idea they are not getting or not, and the professor can explain things differently vs the same same way over again.

      However for many learning centers, class sizes are too large for that level of interaction, and there are too many students who really don't care enough about that particular topic to give feed back either way. Unle

  • The bit where it's of any additional value to anyone but the company selling this junk.

  • Cool, but is this really any better than a video conference? Why would you simply not use an online video instead? Students can watch it multiple times to grasp harder concepts and they can watch it literally anywhere with mobile technology. I even did one for my physics students explaining Pepper's ghost [youtube.com]. It might not be as cool as a hologram but I bet it is at least as effective pedagogically and since we had all the equipment already the cost was pretty much zero.
    • It could go beyond just basic telepresence; you tell me if it has the potential to change the classroom experience [youtube.com] for the weirder.

    • by Z34107 ( 925136 )

      Cool, but is this really any better than a video conference?

      It is a video conference. The "capture studio" sounds expensive, but "low thousands" for the projector doesn't sound all that obscene. Whether it's worth it depends on how beneficial the illusion of the instructor's physical presence is in terms of classroom interaction &c. is relative to the price premium over a 2D projector.

  • They are simply projections, holograms do not require a surface project light on to.

  • CSB:

    Way back in the stone age, my alma mater's campus had 11mbps wifi. We were told that 54mbps wifi was going to roll out but that the law school building and library was going to get it first.

    Cue me and two other idiots replacing the routers overnight (They were those blue and grey WRT routers so they looked the same).

    Best part is that the law school guys bragged with us about their wifi once or twice afterwards.

  • by Anonymous Coward
    As a student in London in the 80s, I attended a few lectures over CCTV. The only good thing about them that it was easier to fall asleep than in standard lectures. This aside, they were pretty much as useless as standard lectures.
  • Please state the nature of your educational crisis.
    • by bn-7bc ( 909819 )

      From the near future
      EEH mk1.:Please state the nature of your educational crisis
      Student: All the lectururs are gone even the department deans are MIA/AWAL
      EEH: What about the lecture archives?
      Student: Off lime and the it departmet is on strike
      EEH: (sigh) I seem to be at the University of the damed
      (freely modifed from EMC MK1 Voyager: Cartaker. no intelectual property violation intended)
      Om e serious note tho without the lecturing fees how can the researchers fund that part of the reserch now funded by

  • So it just costs a few thousands more per lecture than a video and it gives the fantastic bonus of almost being 2.5d?

    What a progress for the learning experience that must be for those schools who swim in money.

    • It's the business school. They're not going to be any good at raising the next generation of CEOs without 'wowing' them with some shiny new technology, now are they? I'm told they're going to be marking end of term papers using blockchain and industry-standard REST APIs.

  • I still remember my quantum physics professor giving two hours lectures without ever taking a break, with no written notes at hand, surfing among hamiltonians, fuchsian singularities and spins, and using nothing but chalck and a blackboard. For his research work he missed a Nobel prize nomination by a hair, and he left a vivid impression in all his students.
    Now a student gets nothing but a virtual assistant...what will they remember of this after a few years ?
    • It looks like you're trying to understand supply & demand growth? Would you like some help with that? Woof!

    • by novakyu ( 636495 )

      He might have been a more impressive lecturer (although, what you describe is kinda standard for any emeritus—or near-emeritus—professor), but here's the more relevant question: how many of your classmates were able to follow the lecture for 2 hours? How much of the material do you remember (can you write down the Hamiltonian of a spin-1/2 particle in an applied magnetic field)?

      The "virtual assistant", as unimpressive as they might be, have a potential for being a better teacher, only unsurpasse

  • Can't just watch it on YouTube for free?
  • No money for essential services but let's spend a bunch of money on faux holograms that don't really add much to the teaching experience over a projection TV. With the projection TV you can save the lecture and post it on YouTube so the students can watch it later.

    Put the money into the basic essentials and leave the fancy light shows for the entertainment industry or even CEOs introducing products.

  • by cascadingstylesheet ( 140919 ) on Friday November 02, 2018 @06:56AM (#57579986) Journal
    Help me Professor Wan Kenobi, you're my only hope!
  • Given that it's Imperial College and they're going to be teaching by hologram... I wonder if this ( http://www.oocities.org/~speci... [oocities.org] ) might be one of the professors.
  • Correct me if I'm wrong, but isn't projecting onto a transparent surface exactly what Pepper's Ghost IS? This may well be a slightly different approach, using software to generate the background of the projected image instead of capturing it during the original recording, but it's still projecting onto a surface that will reflect back to the viewer(s) and working best when shown against a dark background and/or in a dark room.

    I also wonder, neat as this idea is, is there a clear advantage to doing this ove

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