Rahul Vishwakarma

US Patent:

20230126761, Apr 27, 2023

Filed:

Oct 26, 2021

Appl. No.:

17/511298

Inventors:

- Tokyo, JP
Ravigopal Vennelakanti - San Jose CA, US
Rahul Vishwakarma - Sunnyvale CA, US

Assignee:

Hitachi, Ltd.

International Classification:

G06K 9/00

Abstract:

Example implementations described herein involve an attribute of an inflow source that is assigned to each trajectory in the camera view, which is used for crowd analysis. The inflow source is estimated using techniques of tracking across cameras. If the inflow source is different even if the flow trajectories are the same direction, the trajectories are visualized in different styles. By using the attribute of the inflow source, it is possible to detect changes and anomalies in the crowd that were difficult to detect using the prior art.

US Patent:

20210295124, Sep 23, 2021

Filed:

Mar 20, 2020

Appl. No.:

16/825465

Inventors:

- Tokyo, JP
Ravigopal VENNELAKANTI - San Jose CA, US
Rahul VISHWAKARMA - Sunnyvale CA, US
Akira MAEKI - Cupertino CA, US
Yuki WATANABE - San Jose CA, US

International Classification:

G06K 19/06

Abstract:

Example implementations described herein are directed to a tag using a color/pattern coding scheme for better use in industrial settings which may involve curved objects such as pipes. The tag can include one or more anchors indicative of an orientation of the tag; a calibration pattern mapping each of a plurality of colors/patterns to one or more values; and encoded information provided on the tag in one or more of the plurality of colors/patterns. The tag may be printed directly on the object to ensure longevity and readability, or attached as a sticker or printed label depending on the desired implementation.