Walmart Apollo, LLC

Chunmei Wang

Zhichun Xiao

Lingfeng Zhang

Haining Liu

Feiyun Zhu

Tianyi Mao

Han Zhang

Jon Hammer

Yao Liu

Pingjian Yu

Yutao Tang

Sicong Fang

Joseph Duffy

Xiang Yao

Pingyuan Wang

Yu Tao

Muzzammil Afroz

Some embodiments provide image evaluation systems and methods, comprising: a plurality of camera systems distributed about a retail facility and each of the plurality of camera systems; and an image processing system configured to receive multiple images over time, process each image comprising: determine, from pixel data, a gradient amplitude and directional component; determine a histogram curve from the gradient amplitudes as a function of the directional component of the pixel data, and identify a key direction relative to a maximum accumulation of the gradient amplitudes; for the gradient amplitudes, of the pixel data, having a corresponding directional component that is within a direction threshold of the key direction, identify a number of local maxima corresponding to the key direction; and determine a quantity of items of the product corresponding to a quantity of the number of local maxima.

Systems and methods of image processing and shrinkage evaluation

A transaction record is created showing a purchase transaction of a customer. A CV profile showing a list of items in the transaction obtained from images is also obtained. The items in the transaction record are compared to items on the list. When there is a discrepancy, an action to take is determined.

System and method for detecting unpaid items in retail store transactions

Growing community of inventors

Dallas, TX, United States of America

Chunmei Wang