Amazon Technologies, Inc.

Shrivatsan Vasudhevan

Ammar Chinoy

Sudarshan Narasimha Raghavan

Dilip Kumar

Jin Dong Kim

Frank Florian Liberato, Jr

Pranab Mohanty

Joachim Sebastian Stahl

Jiajun Zhao

Maxwell Aaron Corman

Yasser Baseer Asmi

Emilio Ian Maldonado

David Allen Smith

This disclosure describes a system for disambiguating between multiple potential users that may have performed an item action (e.g., item removal or item placement) at an inventory location. For example, if there are three picking agents (users) standing near an inventory location and one of the agents removes an item (item action) from the inventory location, the example systems and processes described herein may utilize various inputs to disambiguate between the users and determine which of the potential users performed the item action.

Disambiguating between users

Described is a multiple-camera system and process for re-identifying a user located in a materials handling facility based on user patterns and/or descriptors representative of the user. In one implementation, a user pattern and/or a plurality of descriptors representative of a user are maintained as a position of a user is tracked through a materials handling facility. If the tracking of the user is lost, the last known position is stored with the user pattern and/or descriptors. If a new object is detected and confirmed to be a user, a user pattern and/or descriptors of the new object are compared with the stored user pattern and/or descriptors to determine if the new object is the user.

Updating a position of a user within a materials handling facility

Described is a multiple-camera system and process for detecting a user within a materials handling facility and tracking a position of the user as the user moves through the materials handling facility. In one implementation, a plurality of depth sensing cameras are positioned above a surface of the materials handling facility and oriented to obtain a top-down view of the surface of the materials handling facility, along with any objects (e.g., users) on the surface of the materials handling facility. The depth information from the cameras may be utilized to detect objects on the surface of the materials handling facility, track a movement of those objects and determine if those objects are users.

Collecting user pattern descriptors for use in tracking a movement of a user within a materials handling facility

Re-establishing tracking of a user within a materials handling facility

Agent identification and disambiguation

Growing community of inventors

Sammamish, WA, United States of America

Shrivatsan Vasudhevan