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Microsoft afslører yderligere detaljer om HoloLens og begynder at tage forudbestillinger

Microsoft i denne uge begyndte at acceptere ansøgninger om forudbestillinger til sin HoloLens forstørrede virkelighed enhed. Lige nu tilbyder virksomheden HoloLens kun til softwareudviklere, der ønsker at bygge applikationer til dette nye miljø. Interesserede udviklere skal betale $ 3000 pr. Enhed til dette udviklingspakke, hvilket er en stor sum. Desuden giver yderligere tekniske specifikationer for HoloLens, som Microsoft afslører, os lidt indsigt i, hvad der er inde i denne forstørrede virkelighed, der kan bæres.

Microsoft HoloLens er specialbygget bærbar personlig computer kører Windows 10 operating system. The HoloLens is based on an undisclosed 32-bit Intel processor and a custom-designed Microsoft holographic processing unit (HPU) that processes data from multiple sensors. In fact, the list of HoloLens’ sensors is very impressive: the device features one 2 MP video camera, an inertial measurement unit (which means, a set of accelerometers, gyroscopes and maybe even a magnetometer), one depth camera, four environment understanding cameras, four microphones, an ambient light sensor as well as mixed reality capture IC. Since the mixed-reality headset does not use any markers or extra cameras to track movement that are located outside of itself, a sophisticated set of sensors inside it is absolutely required.The HoloLens can track gaze, understand gestures and voice commands thanks to its sensors and underlying software.

Enheden er udstyret med 2 GB RAM (1GB til processoren og 1GB til HPU) samt 64 GB NAND flash-lagring. HoloLens kan oprette forbindelse til internettet eller andre enheder ved hjælp af trådløse Wi-Fi 802.11ac- og Bluetooth 4.1 LE-teknologier. Desuden er enheden udstyret med en Micro-USB 2.0-port, en 3.5 mm lydstik og et surround sound system. HoloLens kan operere i to eller tre timer på en opladning, hvilket ikke er meget, men det er usandsynligt, at du ville have det her i en arbejdsdag. Det kan også oplades under brug og tethering det lidt, men tillader udviklere at teste applikationer på det, som de arbejder.

The AR headset from Microsoft uses its advanced sensors to track the position and orientation of the user’s head relative to their surroundings. The system attempts to predict position where the user’s head will be in at the exact moment and applies holograms accordingly. Microsoft makes a number of recommendations to software makers how to ensure that the hologram is added to the right place at the right time, but the system constantly monitors not only data from sensors, but also adjusts the length of the rendering pipeline.

The HoloLens uses two see-through holographic lenses (each of which consists of three layers — red, green and blue) with an optical projection system to generate multi-dimensional full-color holograms. Maximum resolution that the HoloLens can render is 1268×720 (per eye), hvilket er grunden til de faktiske hologrammer et begrænset synsfelt. The holographic content is put at two meters distance from the viewer because Microsoft believes that this is optimal for eyes and will not cause any strain. Since augmented reality is not about maximum resolution, Microsoft puts a lot of focus on quality of each hologram because it is crucial for its usability. According the company, the lenses support holographic density of up to 2.5K radiants (the more radiants and light points there are, the brighter and richer the hologram). But while the quality is very important for AR, to ensure smooth framerate (at least 60 fps) Microsoft suggests to lower resolution of images to 634×360 in certain cases.

Because Microsoft’s HoloLens is a fully-fledged wearable PC, it has its own limitations. The CPU is certainly going to be low powered to allow it to be used mounted on a wearable, possibly Quark or Atom, but Microsoft is not disclosing this yet. Since storage of the wearable PC cannot be upgraded, Microsoft caps maximum allocated size for one application to 900 MB. Finally, the software giant warns that because certain applications may require too much processing power, the system-on-chip of the HoloLens can overheat. To prevent that, HoloLens will shut down the application if temperatures hit certain levels. Consequently, even if a developer managed to create something that uses all the resources of HoloLens, it is not guaranteed that their app will actually work in all circumstances, at least with this developer kit.

Hidtil har Microsoft udviklet en begrænset liste over ansøgninger for HoloLens at vise kapaciteter fra AR til udviklere. Listen over produktivitetsprogrammer omfatter Skype, HoloStudio og Actiongram, mens listen over underholdningsprogrammer omfatter HoloTour, RoboRaid, Young Conker og Fragments. Med kun et begrænset antal programmer, der understøtter holografisk erfaring, er det fornuftigt, at dette er et udviklerpakke og ikke en offentlig udgivelse.

Galleri: Microsoft HoloLens: AR Erfaring

Also, the original demos of Hololens used what Microsoft called an “Air Tap” to do selections. This was not that difficult to pick up on, but to make this easier they will be offering a Bluetooth connected hand held device to let you do the clicking with that, rather than having to do the gesture. Since the Hololens supports Windows 10 og Bluetooth, er der sandsynligvis mulighed her for flere eksterne enheder til også at udføre andre opgaver.

Microsoft HoloLens Development Edition vil først være tilgængelig for softwareudviklere i USA og Canada. Udviklerne skal deltage i Windows Insider-programmet. For at købe HoloLens skal programmører dele deres ideer om deres applikationer med Microsoft. Hvis software giganten kan lide ideen, vil forfatteren få chancen for at købe AR-enheden. Softwaregiganten planlægger at sende den første serie HoloLenses til udvalgte udviklere i marts 30, 2016. Når flere enheder fremstilles, vil Microsoft invitere flere ansøgere til at købe til HoloLens. Interesserede udviklere kan anmode om en Microsoft HoloLens-enhed her.

kilder: microsoft, PC World.

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