IP Library › Granted Patent US 12,300,033
Granted Patent B2
US 12,300,033 · App. 17/728,543 · Granted May 13, 2025

Apparatus, method and system for person detection and identification utilizing wireless signals and images

Inventors: Shan Lin (Jericho, NY); Hongkai Chen (Smithtown, NY); Sirajum Munir (Pittsburgh, PA)
Assignees: Robert Bosch GmbH; The Research Foundation for The State University of New York
G06V40/20G06Q50/265G06V10/98H04N7/183H04W4/029
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Quick Facts
Patent No.
US 12,300,033
App. No.
17/728,543
Granted
May 13, 2025
Kind
B2
Abstract

Methods and systems for identifying persons utilizing a camera and a wireless transceiver. The wireless transceiver receives wireless packets (e.g., Wi-Fi packets) from one or more mobile devices associated with one or more persons. The channel state information (CSI) is determined based on signals associated with the packets, and first motion characteristics are determined based on the CSI data. Congruently, the camera generates images, and associated image data is received, wherein the image data is associated with the one or more persons. Second motion characteristics are determined based on the image data. The first motion characteristics are matched with the second motion characteristics along with a quantified uncertainty, and the matched motion characteristics are assigned with weights that are based on the second motion characteristics (e.g., image-based). The one or more persons are identified based on the matched motion characteristics and the weights.

Claims (51)

1. A method of identifying a person utilizing a camera and a wireless transceiver, the method comprising:

receiving, at the wireless transceiver, packets from one or more mobile devices associated with one or more persons in a vicinity of the wireless transceiver;

determining channel state information (CSI) data based on a signal associated with the packets;

determining first motion characteristics associated with the one or more persons based on the CSI data;

receive image data associated with images generated from the camera, wherein the image data is associated with the one or more persons in the vicinity;

determining second motion characteristics associated with the one or more persons based on the image data;

matching the first motion characteristics with the second motion characteristics to derive matched motion characteristics;

assigning vision-based weights to the matched motion characteristics, wherein the weights are based on the second motion characteristics determined based on the image data and not the signal associated with the packets received from the one or more mobile devices; and

identifying the one or more persons based on the matched motion characteristics and the weights.

2. The method of claim 1 , further comprising:

adjusting the weights based on a change in the second motion characteristics.

3. The method of claim 2 , wherein a portion of the matched motion characteristics are weighted heavier at times during the change in the second motion characteristics.

4. The method of claim 1 , further comprising:

fusing the matched motion characteristics based on the weights associated with the second motion characteristics.

5. The method of claim 1 , further comprising:

quantifying an uncertainty of the first motion characteristics.

6. The method of claim 5 , wherein the step of matching is performed based on the quantified uncertainty.

7. The method of claim 5 , wherein the step of quantifying is performed based on a level of uncertainty of a wireless signal from one or more of the mobile devices.

8. The method of claim 1 , wherein the second motion characteristics include activity associated with the one or more person in the image data.

9. The method of claim 1 , further comprising communicating data from the wireless transceiver to an application stored on the mobile device of the identified one or more persons.

10. A method of identifying a person utilizing a camera and a wireless transceiver, the method comprising:

determining channel state information (CSI) data received at the wireless transceiver based on a signal associated with the packets from one or more mobile devices associated with one or more persons in a vicinity of the wireless receiver;

determining first motion characteristics associated with the one or more persons based on the CSI data;

quantifying an uncertainty of the first motion characteristics;

receive image data associated with images generated from the camera, wherein the image data is associated with the one or more persons in the vicinity;

determining second motion characteristics associated with the one or more persons based on the image data;

matching the first motion characteristics with the second motion characteristics based on the quantified uncertainty to derive matched motion characteristics;

assigning vision-based weights to the matched motion characteristics, wherein the weights are based on the second motion characteristics determined based on the image data and not based on the signal associated with the packets from the one or more mobile devices; and

identifying the one or more persons based on the matched motion characteristics and the weights.

11. The method of claim 10 , wherein the step of quantifying is performed based on a level of uncertainty of a wireless signal from one or more of the mobile devices.

12. The method of claim 10 , further comprising:

adjusting the weights based on a change in the second motion characteristics.

13. The method of claim 12 , wherein a portion of the matched motion characteristics are weighted heavier at times during the change in the second motion characteristics.

14. The method of claim 10 , wherein the first motion characteristics include angle of arrival (AoA), or distance between the one or more persons or the one or more mobile devices and the wireless transceiver.

15. A system for identifying a person utilizing a camera and a wireless transceiver, the system comprising:

a wireless transceiver configured to receive packets from one or more mobile devices associated with one or more persons in a vicinity of the wireless transceiver;

a camera configured to obtain images of the one or more persons in the vicinity; and

a processor in communication with the wireless transceiver and the camera, the processor programmed to:

determine channel state information (CSI) data based on a signal associated with the packets,

determine first motion characteristics associated with the one or more persons based on the CSI data,

receive image data associated with the images,

determine second motion characteristics associated with the one or more persons based on the image data,

match the first motion characteristics with the second motion characteristics to derive matched motion characteristics,

assign weights to the matched motion characteristics, wherein the weights are based on the second motion characteristics and not based on the signal associated with the packets from the one or more mobile devices, and

identify the one or more persons based on the matched motion characteristics and the weights.

16. The system of claim 15 , wherein the processor is further programmed to:

adjust the weights based on a change in the second motion characteristics.

17. The system of claim 16 , wherein a portion of the matched motion characteristics are weighted heavier at times during the change in the second motion characteristics.

18. The system of claim 15 , wherein the processor is further programmed to quantify an uncertainty of the first motion characteristics based on a level of uncertainty of a wireless signal from one or more of the mobile devices, and

wherein the processor is programmed to match the first motion characteristics with the second motion characteristics based on the uncertainty.

19. The system of claim 15 , wherein at least one of the first motion characteristics and the second motion characteristics include an estimated angle of arrival (AoA).

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2022
From: LIN, SHAN; CHEN, HONGKAI
To: THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
Reel/Frame 059878/0760 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2022
From: MUNIR, SIRAJUM
To: ROBERT BOSCH GMBH
Reel/Frame 059878/0763 →
Continuity (1)
Related Publication 20220262164A1 · Aug 18, 2022
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