Ronnie05's Blog

XBox Kinect: Real Time Motion Gaming Dawns (Part II)

Posted in Gaming by Manas Ganguly on June 22, 2010

Here’s how this genie works (courtesy Paul Miller):

“Kinect combines a few detection mechanisms to build up a rather accurate and comprehensive amount of 3D data on what’s going on inside a room. There’s a color camera for taking pictures, recognizing faces, and so forth, but the real magic happens with the monochrome CMOS camera sensor that’s paired up with an IR blaster. Microsoft calls this its “depth sensor,” and the light and shadow of that image (lit by the human eye-invisible IR spectrum) is analyzed to build a 3D map of the objects within Kinect’s field of view. Finally, there’s a multi-array microphone setup to detect location of voices and to cancel out ambient noise, allowing for video chats without a headset. All of this sits atop a motorized tilting base of sorts, which when used in conjunction with skeletal and facial tracking, Kinect can pan and tilt to keep its sensors trained on you as you move around the room. One down side of the motorized base, however, along with the rest of the fairly complicated electronics, is that the Kinect hardware isn’t tiny: it’s about a hand’s width tall, about as deep, and around a foot wide. When you think about it, the entire Wii occupies less cubic real estate. It shouldn’t have much trouble squeezing in up in front of your LCD TV, but good luck trying to balance it on top, and we have no idea how folks who hang their TVs on the wall should approach this situation.

One thing that Microsoft has actually left out of Kinect is a dedicated processor. The original plan was purportedly to have the Kinect pull its own load, allowing the Xbox 360’s processors to run free in rendering games. In the interest of cost, however, the processor got cut and now the Xbox is taking a 10-15% processor hit. Reports are conflicting as to whether or not that’s going to impact the sort of games that make it onto the system, but either way it pretty much rules out retrofitting older games for a new Kinect control scheme.

There are divergent reports on lag, but 100-150ms seems to be around where Kinect is playing (Sony claims a 22ms lag for PlayStation Move). During that time the system is tracking and processing 48 skeleton points in 3D space, watching up to two people, and repeating the process at around 30 fps.”

Kinect will be bundled along with the Xbox 360 and while the Xbox 360 has a tag of $199, the Kinect bundles will cost $399 for elite and $299 for arcade.

Microsoft has wowed the journos and analysts alike with the experience of real games, real gameplay, and real hardware, and a very real desire to get hands on with this new technology. The wait is set and we have a date with the Kinect, this 4th November 2010.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: