The Project Natal sensor is an approximately 9-inch (23 cm) wide horizontal bar connected to a small circular base with a ball joint pivot, and is designed to be positioned lengthwise above or below the video display. The device features an "RGB camera, depth sensor, multi-array microphone, and custom processor running proprietary software",which provides full-body 3D motion capture, facial recognition, and voice recognition capabilities. The Project Natal sensor's microphone array enables the Xbox 360 to conduct acoustic source localization and ambient noise suppression, allowing for things such as headset-free party chat over Xbox Live.
The depth sensor consists of an infrared projector combined with a monochrome CMOS sensor, and allows the Project Natal sensor to see in 3D under any ambient light conditions.The sensing range of the depth sensor is adjustable, with the Project Natal software capable of automatically calibrating the sensor based on gameplay and the player's physical environment, such as the presence of chairs.
Project Natal is reportedly based on software technology developed internally by Microsoft and hardware intellectual property acquired from time-of-flight camera developer 3DV Systems. Before agreeing to sell all its assets in March 2009,[23] 3DV had been preparing its own depth-sensing webcam controller, known as the ZCam.
Described by Microsoft personnel as the primary innovation of Project Natal, the software technology enables advanced gesture recognition, facial recognition, and voice recognition. The skeletal mapping technology shown at E3 2009 was capable of simultaneously tracking up to four users for motion analysis, with a feature extraction of 48 skeletal points on a human body at a frame rate of 30 hertz. Depending on the person's distance from the sensor, Project Natal is capable of tracking models that can identify individual fingers.
Ei perus webbikamera taida aivan tuohon kyetä, puhumattakaan EyeToy lisälaitteesta.
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