09377874 is referenced by 1 patents and cites 113 patents.

A system and method is provided for a gesture recognition interface system. The system comprises a projector configured to project colorless light and visible images onto a background surface. The projection of the colorless light can be interleaved with the projection of the visible images. The system also comprises at least one camera configured to receive a plurality of images based on a reflected light contrast difference between the background surface and a sensorless input object during projection of the colorless light. The system further comprises a controller configured to determine a given input gesture based on changes in relative locations of the sensorless input object in the plurality of images, and being further configured to initiate a device input associated with the given input gesture.

Title
Gesture recognition light and video image projector
Application Number
11/934580
Publication Number
9377874 (B2)
Application Date
November 2, 2007
Publication Date
June 28, 2016
Inventor
Shi Ping Hsu
Pasadena
CA, US
H Keith Nishihara
Los Altos
CA, US
Kenneth W Aull
Fairfax
VA, US
Agent
Tarolli Sundheim Covell & Tummino
Assignee
Northrop Grumman Systems Corporation
CA, US
IPC
G06F 3/042
G06F 3/01
G06F 3/03
G06F 5/00
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