1
Trevor Darrell, Gaile Gordon, Michael Harville, John Woodfill, Harlyn Baker: Method and apparatus for personnel detection and tracking. Interval Research Corporation, Burns Doane Swecker & Mathis L, February 13, 2001: US06188777 (558 worldwide citation)

Techniques from computer vision and computer graphics are combined to robustly track a target (e.g., a user) and perform a function based upon the image and/or the identity attributed to the target's face. Three primary modules are used to track a user's head: depth estimation, color segme ...


2
Gaile Gordon, Michael Harville, John Woodfill, Trevor Darrell: Background estimation and segmentation based on range and color. Interval Research Corporation, Van Pelt & Yi, December 9, 2003: US06661918 (502 worldwide citation)

Segmentation of background and foreground objects in an image is based upon the joint use of both range and color data. Range-based data is largely independent of color image data, and hence not adversely affected by the limitations associated with color-based segmentation, such as shadows and simil ...


3
Trevor Darrell, Gaile Gordon, Michael Harville, John Woodfill, Harlyn Baker: Method and apparatus for personnel detection and tracking. Interval Research Corporation, Van Pelt & Yi, September 3, 2002: US06445810 (122 worldwide citation)

Techniques from computer vision and computer graphics are combined to robustly track a target (e.g., a user) and perform a function based upon the image and/or the identity attributed to the target's face. Three primary modules are used to track a user's head: depth estimation, color segme ...


4
Gaile Gordon, Trevor Darrell, Michael Harville, John Woodfill: Background estimation and segmentation based on range and color. Vulcan Patents, Perkins Coie, January 8, 2008: US07317830 (46 worldwide citation)

Segmentation of background and foreground objects in an image is based upon the joint use of range and color data. Range-based data is largely independent of color image data, and hence not adversely affected by the limitations associated with color-based segmentation, such as shadows and similarly ...


5
Brett Miller, John Woodfill: Range image generation. INTEL Corporation, Finch & Maloney PLLC, October 3, 2017: US09779328

Techniques are provided for range image generation. An input image and a reference image are used to compute raw and optimized disparity-space correlation disparity results for each pixel in the reference image. A bilateral filter is applied to both the raw and optimized disparity space correlation ...


6
Trevor Darrell, Gaile Gordon, Michael Harville, John Woodfill, Harlyn Baker: Method and apparatus for personnel detection and tracking. Burns Doane Swecker & Mathis, March 15, 2001: US20010000025-A1

Techniques from computer vision and computer graphics are combined to robustly track a target (e.g., a user) and perform a function based upon the image and/or the identity attributed to the target's face. Three primary modules are used to track a user's head: depth estimation, color segmentation, a ...