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Virtual Dictionary
Back-Face Culling Back-Face Culling or BFC is a standard approach taken by 3D rendering engines, to help remove unnecessary items from the render view. Essentially, as the name implies, it is the removal of all polygonal faces or rendering triangles which face away from the viewpoint. I.e., all parts of a given object that are occluded from the viewer by other parts of the same object, as they are on the ?back? relative to the observer. Below, we offer a selection of links from our resource databases which may match this term.
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 When it comes to an avatar face, how it is perceived by others is the most important detail. Surprisingly how the eyes process what they see and turn an androgynous face into one gender or another, or a young face into an aged one, depends to a surprisingly great deal on subtle contrast differences in a small number of facial features.
This book, written by a neuroscientist, proposes that use of technology such as social networking, where computer mediation rather than face to face communication is the order of the day, actively changes how our brains process information over time.
 Researchers from Germany have discovered strong evidence that with humans, picking faces out of a crowd has a lot less to do with the shape of the face, or the expression upon that face, and a lot more to do with whether the teeth are visible or not.
In a handful of the more pioneering virtual environments, a system called FaceGen, along with other, similar systems, allows a user to photograph their face from front and side, and use that to put together a 3D model of their physical head, if they so desire, to use for the basis of their avatar presence online. Other technologies are just coming into use, that allow adjustments, based on attractiveness, of that face.
 If you are looking for someone in a crowded scene, whether a "where's Wally" book, or a crowded cafeteria, your eyes scan the room like a roving spotlight, moving from face to face? Researchers at Researchers at MIT's Picower Institute for Learning and Memory have found that you do. What's more there's something very much akin to a clock cycle controlling the speed at which you do so.
 Researchers at Toyohashi University of Technology have discovered that the human bain processes the colour of a face separately to the features of that face. This is an interesting development, especially when placed in the context of crafting personalised avatar forms for AI sales agents and other interactive AI in virtual space.
 An interesting discovery has come out of a study by researchers at the Hebrew University of Jerusalem and at New York University and Princeton University. Namely, the discovery that the face is not the primary communicator of emotion. The rest of the body handles that. This is of course critical for our virtual environments and their avatars.
 The concept of aging, or the appearance thereof, is a good one. It is an aspect of circumnavigating the uncanny valley that should never be forgotten: No matter how perfectly a human face, behaviour, mannerisms are recreated, unless the face, the body seems to change with time, the uncanny valley has not really been conquered.
 Research conducted in 2009, which proceeded to fade into obscurity, found a direct connection between the attractiveness of a face to human subjects and the exact dispance of spacing of facial features relative to the size of the head in both horizontal and vertical dimensions. When building an avatar face we can actually move the features around and take advantage of their findings in ways physical faces cannot.
 Facial recognition systems applied to canine faces. A still from a very silly film, is not so silly after all. With other, similar projects already in the works, there is no reason in the world why face recognition cannot be applied to any animal with a face.
Industry
News containing the Term Back-Face Culling:
Results by page (02/12/2011)
Robotics researchers in Munich have joined forces with Japanese scientists to develop an ingenious technical solution that gives robots a human face. By using a projector to beam the 3D image of a face onto the back of a plastic mask, and a...
(02/11/2012)
When foot-and-mouth disease swept through the British countryside in early 2001, more than 10 million sheep, cattle and pigs were slaughtered to control the disease. Despite the devastation, the disease was contained within ten months in pa...
(14/05/2009)
Office workers who make time to chat face to face with colleagues may be far more productive than those who rely on e-mail, the phone, or Facebook, suggests a study carried out by researchers at MIT and New York University. T...
(17/09/2007)
University of Glasgow researcher Rob Jenkins has created an imaging tool which should bolster security and surveillance issues by recognising faces far better than any human. Currently, both people and computers are poor at r...
(02/10/2004)
Ever wondered how humans will look in 50 years time? An exhibition in London predicts the answer may lie in the digital world. As those who have followed medical news over the past year know, we are on the cusp of transferrin...
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