Joohee Kim

US Patent:

20170032676, Feb 2, 2017

Filed:

Jul 22, 2016

Appl. No.:

15/216934

Inventors:

Maziar LOGHMAN - Chicago IL, US
Joohee KIM - Oak Brook IL, US

Assignee:

ILLINOIS INSTITUTE OF TECHNOLOGY - Chicago IL

International Classification:

G08G 1/16
G06T 7/00
H04N 13/02

Abstract:

A region of interest (ROI) generation method for stereo-based pedestrian detection systems. A vertical gradient of a clustered depth map is used to find ground plane and variable-sized bounding boxes are extracted on a boundary of the ground plane as ROIs. The ROIs are then classified into pedestrian and non-pedestrian classes. Simulation results show the algorithm outperforms the existing monocular and stereo-based methods.

US Patent:

20160048970, Feb 18, 2016

Filed:

Aug 17, 2015

Appl. No.:

14/827897

Inventors:

Maziar Loghman - Chicago IL, US
Joohee Kim - Oak Brook IL, US

International Classification:

G06T 7/00
H04N 13/02
G06T 5/00

Abstract:

A computer-implemented depth estimation method based on non-parametric Census transform with adaptive window patterns and semi-global optimization. A modified cross-based cost aggregation technique adaptively creates the shape of the cross for each pixel distinctly. In addition, a depth refinement algorithm fills holes within the estimated depth map using the surrounding background depth pixels and sharpens the object boundaries by exerting a trilateral filter to the generated depth map. The trilateral filter uses the curvature of pixels as well as texture and depth information to sharpen the edges.