Method for tracking product inventory location in a store

A method comprising:

• accessing a first image, depicting a first inventory structure in a customer region of a store, captured at a first time;
• detecting a first slot, in the first inventory structure, in a first region of the first image;
• extracting a first set of features from the first region of the first image;
• detecting a first set of product units of a first product type occupying the first slot at the first time based on the first set of features, the first product type assigned to the first slot;
• deriving a first in-stock condition of the first slot at the first time based on the first set of product units;
• accessing a second image, depicting the first inventory structure, captured at a second time succeeding the first time;
• detecting the first slot in a second region of the second image;
• extracting a second set of features from the second region of the second image;
• deriving a first out-of-stock condition of the first slot at the second time based on the second set of features;
• accessing a third image, depicting the first inventory structure, captured at a third time succeeding the second time;
• detecting the first slot in a third region of the third image;
• extracting a third set of features from the third region of the third image;
• deriving a second out-of-stock condition of the first slot at the third time based on the third set of features;
• matching the first in-stock condition at the first slot at the first time, the first out-of-stock condition at the first slot at the second time, and the second out-of-stock condition at the first slot at the third time to a stored stock pattern associated with insufficient product facings;
• and
• triggering increase in quantity of product facings of the first product type at the first slot based on the stored stock pattern.