Inventor

KJELDSEN FREDERIK C

US6 patents

⚠️ This page may combine multiple inventors who share the name “KJELDSEN FREDERIK C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

3 patents

US6864912B1Mar 8, 2005

Computer system providing hands free user input via optical means for navigation or zooming

IBM40 citations89

US8934714B2Jan 13, 2015

Foreground analysis based on tracking information

IBM7 citations82

US9460361B2Oct 4, 2016

Foreground analysis based on tracking information

IBM0 citations50

KJELDSEN FREDERIK C

1 patent

US8155872B2Apr 10, 2012

Method and apparatus for indoor navigation

KJELDSEN FREDERIK C29 citations86

FERIS ROGERIO S

1 patent

US8483481B2Jul 9, 2013

Foreground analysis based on tracking information

FERIS ROGERIO S10 citations82

BROWN LISA M

1 patent

US8675917B2Mar 18, 2014

Abandoned object recognition using pedestrian detection

BROWN LISA M5 citations70