Amitabh Amitabh Varshney

US Patent:

8219670, Jul 10, 2012

Filed:

Nov 10, 2008

Appl. No.:

12/267921

Inventors:

Ashok K. Agrawala - Ashton MD, US
Amitabh Varshney - Ellicott City MD, US
Christian B. Almazan - Greenbelt MD, US

Assignee:

University of Maryland - College Park MD

International Classification:

G06F 15/173
G06F 15/16

US Classification:

709224, 709219

Abstract:

A multifunctional interaction system which is capable of spatio-temporal context localization of users and of communication of audio/video streams to an entity of interest defined by the user, includes a communication domain supporting a predefined localization service, a server associated with the communication domain, client devices, and a dynamically changing context database which is customized in accord with the dynamics of interaction sessions of client devices with the server. The client communicates with the system to either request services therefrom or to send a message to the entity of interest. The system is provided with a panic alert mechanism which, upon actuation, transmits an audio/video data stream along with the client location tag, time stamp, and client ID, to a police precinct for prompt action.

US Patent:

20090092314, Apr 9, 2009

Filed:

May 19, 2008

Appl. No.:

12/153394

Inventors:

Amitabh Varshney - Ellicott City MD, US
Youngmin Kim - College Park MD, US
Cheuk Yiu Ip - Silver Spring MD, US

International Classification:

G06K 9/00

US Classification:

382165

Abstract:

A method, system and apparatus for determining and modifying saliency of a visual medium are provided. The method, system and apparatus may obtain saliency values for a visual medium based on a plurality of visual channels. The saliency values may be obtained based on at least one of computer-generated modeling, user-specified input and eye-tracking. The method, system and apparatus may aggregate the obtained saliency values and classify regions of the visual medium based on the aggregated saliency values. The visual channels may include one or more of absolute mean curvature, a gradient of mean curvature, a gradient of color intensity, color luminance, color opponency, color saturation, lighting and focus. When calculating mean curvature, the method, system and apparatus may calculate a change in mean curvature for a plurality of vertices around a region and displace the vertices in accordance with the calculated change in mean curvature to change a saliency of the region.

US Patent:

20180322689, Nov 8, 2018

Filed:

May 7, 2018

Appl. No.:

15/972809

Inventors:

- College Park MD, US
Amitabh VARSHNEY - Potomac MD, US

International Classification:

G06T 15/20
G06T 7/579
G06T 17/20
G06T 7/20

Abstract:

Various communication systems may benefit from improved depth perception of images. For example, it may be helpful to enhance depth perception of a three-dimensional rendering of an image. A method, according to certain embodiments, may include acquiring at an apparatus a pair of images. The method may also include computing an energy map based on one or more kinetic parameters of the pair of images. In addition, the method may include generating a kinetic depth image based on the energy map.

US Patent:

20180075591, Mar 15, 2018

Filed:

Mar 21, 2016

Appl. No.:

15/559955

Inventors:

- College Park MD, US
Amitabh VARSHNEY - Potomac MD, US

International Classification:

G06T 5/50
G06T 11/60

Abstract:

Disclosed are systems, devices, and methods for creating a rendering of real-world locations with embedded multimedia elements. An exemplary method includes receiving image data of a real-world location, identifying geographic coordinates of the real-world location and/or a point of view from which the image data was acquired, acquiring multimedia elements relevant to the real-world location based on the geographic coordinates and/or the point of view, and creating a rendering of the image data with the multimedia elements embedded therein.