 | This article needs to beupdated. Please help update this article to reflect recent events or newly available information.(December 2017) |
| Tango | |
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| Original author | |
| Developer | |
| Initial release | June 5, 2014; 11 years ago (2014-06-05) |
| Platform | Android |
| Available in | English |
| Type | Computer vision |
| Website | developers |
Tango (namedProject Tango while in testing) was anaugmented realitycomputing platform, developed and authored by theAdvanced Technology and Projects (ATAP), askunkworks division ofGoogle. It usedcomputer vision to enablemobile devices, such assmartphones andtablets, to detect theirposition relative to the world around them without usingGPS or other external signals. This allowed application developers to create user experiences that includeindoor navigation,3D mapping, physical space measurement, environmental recognition,augmented reality, and windows into avirtual world.
The first product to emerge from ATAP,[1] Tango was developed by a team led by computer scientistJohnny Lee, a core contributor toMicrosoft'sKinect. In an interview in June 2015, Lee said, "We're developing the hardware and software technologies to help everything and everyone understand precisely where they are, anywhere."[2]
Google produced two devices to demonstrate the Tango technology: the Peanut phone and the Yellowstone 7-inch tablet. More than 3,000 of these devices had been sold as of June 2015,[3] chiefly to researchers and software developers interested in building applications for the platform. In the summer of 2015,Qualcomm andIntel both announced that they were developing Tango reference devices as models for device manufacturers who use their mobilechipsets.[4][5]
At CES, in January 2016, Google announced a partnership withLenovo to release a consumer smartphone during the summer of 2016 to feature Tango technology marketed at consumers, noting a less than $500 price-point and a small form factor below 6.5 inches. At the same time, both companies also announced an application incubator to get applications developed to be on the device on launch.
On 15 December 2017, Google announced that they would be ending support for Tango on March 1, 2018, in favor ofARCore.[6]
Tango was different from other contemporary 3D-sensing computer vision products, in that it was designed to run on a standalone mobile phone or tablet and was chiefly concerned with determining the device'sposition and orientation within the environment.
The software worked by integrating three types of functionality:
Together, these generate data about the device in "six degrees of freedom" (3axes oforientation plus 3 axes of position) and detailed three-dimensional information about the environment.
Project Tango was also the first project to graduate from Google X in 2012[7]
Applications on mobile devices use Tango'sC andJavaAPIs to access this data in real time. In addition, an API was also provided for integrating Tango with theUnitygame engine; this enabled the conversion or creation of games that allow the user to interact and navigate in the game space by moving and rotating a Tango device in real space. These APIs were documented on the Google developer website.[8]
Tango enabled apps to track a device's position and orientation within a detailed 3D environment, and to recognize known environments. This allowed the creations of applications such as in-store navigation, visual measurement and mapping utilities, presentation and design tools,[9] and a variety ofimmersive games. At Augmented World Expo 2015,[10] Johnny Lee demonstrated a construction game that builds a virtual structure in real space, anAR showroom app that allows users to view a full-size virtual automobile and customize its features, a hybridNerf gun with mounted Tango screen for dodging and shooting AR monsters superimposed on reality, and amultiplayerVR app that lets multiple players converse in a virtual space where theiravatar movements match their real-life movements.[11]
Tango apps are distributed throughPlay. Google has encouraged the development of moreapps withhackathons, an app contest, and promotional discounts on the development tablet.[12]
As a platform for software developers and a model for device manufacturers, Google created two Tango devices.
"Peanut" was the first production Tango device, released in the first quarter of 2014. It was a smallAndroid phone with a Qualcomm MSM8974 quad-core processor and additional special hardware including afisheyemotion camera, "RGB-IR" camera forcolor image andinfrared depth detection, andMovidiusVision processing units. A high-performance accelerometer and gyroscope were added after testing several competing models in the MARS lab at theUniversity of Minnesota.
Several hundred Peanut devices were distributed to early-access partners including university researchers incomputer vision androbotics, as well as application developers andtechnology startups. Google stopped supporting the Peanut device in September 2015, as by then the Tango software stack had evolved beyond the versions of Android that run on the device.
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"Yellowstone" was a 7-inch tablet with full Tango functionality, released in June 2014, and sold as the Project Tango Tablet Development Kit.[13] It featured a 2.3 GHz quad-core Nvidia Tegra K1 processor, 128GB flash memory, 1920x1200-pixel touchscreen, 4MP color camera,fisheye-lens (motion-tracking) camera, an IR projector with RGB-IR camera for integrated depth sensing, and4G LTE connectivity.[14][15] As of May 27, 2017, the Tango tablet is considered officially unsupported by Google.[16]
In May 2014, two Peanut phones were delivered to theInternational Space Station to be part of aNASA project to develop autonomous robots that navigate in a variety of environments, including outer space. The soccer-ball-sized, 18-sided polyhedralSPHERESrobots were developed at the NASAAmes Research Center, adjacent to the Google campus inMountain View, California. Andres Martinez, SPHERES manager at NASA, said "We are researching how effective [Tango's] vision-based navigation abilities are for performinglocalization and navigation of a mobile free flyer on ISS.[17]
Announced at Intel's Developer Forum in August 2015,[18] and offered to public through a Developer Kit since January 2016.[19] It incorporated a RealSense ZR300 camera[20] which had optical features required for Tango, such as the fisheye camera.[21]
Lenovo Phab 2 Pro was the first commercial smartphone with the Tango Technology, the device was announced at the beginning of 2016, launched in August, and available for purchase in the US in November. ThePhab 2 Pro had a 6.4 inch screen, aSnapdragon 652 processor, and 64 GB of internal storage, with a rear facing 16 Megapixels camera and 8 MP front camera.
Asus Zenfone AR, announced at CES 2017,[22] was the second commercial smartphone with the Tango Technology. It ran Tango AR &Daydream VR onSnapdragon 821, with 6GB or 8GB of RAM and 128 or 256GB of internal memory depending on the configuration.
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