IP Library Granted Patent US 10,852,840
Granted Patent B2
US 10,852,840 · App. 16/707,936 · Granted Dec 1, 2020

Method and system for hand pose detection

Inventors: Ayan Sinha (West Lafayette, IN); Chiho Choi (West Lafayette, IN); Joon Hee Choi (West Lafayette, IN); Karthik Ramani (West Lafayette, IN)
Assignee: Purdue Research Foundation
G06F3/017G06K9/00214G06K9/00382G06K9/00389G06K9/4628G06K9/66G06N20/00H04N13/271
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Quick Facts
Patent No.
US 10,852,840
App. No.
16/707,936
Granted
Dec 1, 2020
Kind
B2
Abstract

A method for hand pose identification in an automated system includes providing depth map data of a hand of a user to a first neural network trained to classify features corresponding to a joint angle of a wrist in the hand to generate a first plurality of activation features and performing a first search in a predetermined plurality of activation features stored in a database in the memory to identify a first plurality of hand pose parameters for the wrist associated with predetermined activation features in the database that are nearest neighbors to the first plurality of activation features. The method further includes generating a hand pose model corresponding to the hand of the user based on the first plurality of hand pose parameters and performing an operation in the automated system in response to input from the user based on the hand pose model.

Claims (15)

1. A system for computer human interaction comprising:

a depth camera configured to generate depth map data of a hand of a user;

an output device;

a memory storing at least a first neural network, and a recommendation engine; and

a processor operatively connected to the depth camera, the output device, and the memory, the processor being configured to:

receive depth map data of a hand of a user from the depth camera;

generate, using the first neural network, a first plurality of activation features based at least in part on the depth map data;

use the recommendation engine to perform a first search in a predetermined plurality of activation features stored in a database of the memory to identify a first plurality of hand pose parameters for the wrist associated with predetermined activation features in the database that are nearest neighbors to the first plurality of activation features;

generate a hand pose model corresponding to the hand of the user based on the first plurality of hand pose parameters; and

generate an output with the output device in response to input from the user based at least in part on the hand pose model.

2. The system of claim 1 , wherein the processor is further configured to:

identify a second neural network stored in the memory based upon the first plurality of hand pose parameters, the second neural network being one neural network in a plurality of neural networks stored in the memory trained to classify features corresponding to joint angles of a first finger of the hand; and

generate a second plurality of activation features using the depth map data of the hand of the user and the second neural network;

perform a second search, using the recommendation engine, in the predetermined plurality of activation features stored in the database to identify a second plurality of hand pose parameters for the one finger associated with predetermined activation features in the database that are nearest neighbors to the second plurality of activation features; and

generate the hand pose model corresponding to the hand of the user based on the first plurality of hand pose parameters and the second plurality of hand pose parameters.

Assignments (2)
CONFIRMATORY LICENSE Recorded May 10, 2023
From: PURDUE UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 063594/0049 →
CONFIRMATORY LICENSE Recorded Nov 17, 2020
From: PURDUE UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 054453/0020 →
Continuity (4)
Continuation 16436588 · Jun 10, 2019
Division 15380002 · Dec 15, 2016
Provisional Application 62267634 · Dec 15, 2015
Related Publication 20200225761A1 · Jul 16, 2020