8/7/2023 0 Comments Apex deepfocusThe benefits of using a deep learning with VR include: Deep learning is already used by AI systems to carry out specific tasks by training on large data sets of relevant data, but has generally not be applied to VR systems. Instead of waiting for chipsets to advance and reduce in price, the Facebook team used a deep learning and developed an end-to-end convolutional neural network. But they can’t produce the effect in real time for sophisticated, rich content, because the processing demands are too high for even state-of-the-art chips. Traditional approaches, such as using an accumulation buffer, can achieve physically accurate defocused blur. The Facebook team explored traditional approaches to optimize computational displays, but the results did not align with expectations: ![]() Great VR has to work with objects that are close to you. To work around this problem, the VR industry has placed objects at a distance of 2 meters. If you try to look at something that is not in the focal plane, like an object that is close to you, things become blurry. Maria Fernandez Guajardo, head of enterprise AR/VR at Facebook, explains the challenge with this approach: But, Virtual reality (VR) applications typically focus on objects that are in your mid-distance as it matches the focal plane in which the image is in-focus. ![]() DeepFocus takes advantage of an end-to-end convolutional neural network that produces an accurate retinal blur in near real-time.ĭeepFocus is the underlying technology behind Half Dome, a prototype headset that leverages eye-tracking cameras, wide field of view optics and independently focused displays which provide lifelike VR experiences.Ī multidisciplinary team of researchers at Facebook Reality Labs (FRL) developed DeepFocus with a goal to deliver “experiences that are indistinguishable from reality”. This technology ensures nearby objects are in-focus, while distant objects appear out of focus, much like cinematic experiences. That may sound simple – but we have become so accustomed to the cinematic experience of audio-visual media, that hearing the reals sounds of a place can be very confronting.įor more detail, read our paper presented at the Institute of Acoustics Conference 2020, or listen to our presentation below.In a recent blog post, Facebook announced they have open-sourced DeepFocus, an AI powered framework for improving focus on close objects. Although it may be surprising, this is a very unconventional filming technique! In this way, the visual perspective and aural perspective coincide. The camera is either head-mounted, or held close to the film-maker’s head. The simplest is binaural recording, where there is a microphone by each of the film-maker’s ears. We use a variety of techniques to capture the audio in this way. This means that what you hear when you listen through headphones is exactly what the person standing at that point in the building heard. The APEAL Method enables acoustics to be included in a participatory design process.ĪPEAL films are aurally accurate – we say they combine point of view video footage with point of audition audio recording. This needs no acoustic jargon, complex acoustic descriptors or numbers – simply listening with an understanding of the context is enough experience to form opinions. Thus the evaluation of one environment contributes immediately to the design of the next one. This enables wider experience of the acoustic environment, so that all stakeholders can participate in establishing in-use acoustic performance aspirations for a project. ![]() The APEAL Method is a way of capturing and reproducing the acoustic environment of a building in use, in a way that is aurally accurate. We shot this video stationing for a prolonged period of time in each area, so that we could give an accurate impression of what it is like to work and study within this soundscape. ![]() The diversity of acoustic conditions works well for the occupants – this is a popular destination for students to work. The Reading Room is an open plan space that accommodates a wide range of activities: there are areas for collaborative, individual and deep focus work, all of which have very different acoustic environments. This video illustrates the soundscape of the Reading Room of Northumbria University City Campus Library. Northumbria University Library Reading Room, a mixed use open plan space with a wide range of acoustic environments (Best heard with headphones!)
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