Registration device, method carried out by registration device, and non-transitory computer readable medium

Abstract

A registration device includes a shelf including a sensor and on which a commodity is placed, a camera configured to capture an image of a first area and a second area outside the first area, and a processor configured to start tracking of a customer who has entered the second area from outside based on the image captured by the camera, determine whether the commodity is taken from the shelf based on changes in weight measured by the sensor, upon determining that the commodity has been taken, determine whether the tracked customer performs a particular action within the first area, upon determining that the tracked customer has performed the particular action, determine whether the customer has entered the second area, and upon determining that the customer has entered the second area, register the taken commodity as a commodity being purchased by the customer.

What is claimed is: 
     
         1 . A registration device for registering a commodity to be purchased by a customer, comprising:
 a shelf on which a commodity can be placed, the shelf including a sensor;   a camera configured to capture an image of a first area and a second area outside the first area; and   a processor configured to:
 start tracking of a customer who has entered the second area from outside the first and second areas based on the image captured by the camera, 
 determine whether the commodity is taken from the shelf based on changes in weight measured by the sensor, 
 upon determining that the commodity has been taken, determine whether the tracked customer has performed a particular action within the first area, 
 upon determining that the tracked customer has performed the particular action, determine whether the customer has entered the second area from the first area, and 
 upon determining that the customer has entered the second area from the first area, register the taken commodity as a commodity being purchased by the customer. 
   
     
     
         2 . The registration device according to  claim 1 , wherein the processor is further configured to identify the customer as a registered customer of a store based on the image captured by the camera. 
     
     
         3 . The registration device according to  claim 2 , wherein the processor is further configured to perform settlement processing on the taken commodity when the identified customer enters the second area from the first area. 
     
     
         4 . The registration device according to  claim 1 , wherein the processor is further configured to, upon determining that a customer who is not being tracked performs the particular action, issue a warning signal. 
     
     
         5 . The registration device according to  claim 4 , further comprising:
 a display configured to display an error screen when the warning signal is issued.   
     
     
         6 . The registration device according to  claim 4 , further comprising:
 a speaker configured to output a sound when the warning signal is issued.   
     
     
         7 . The registration device according to  claim 1 , further comprising:
 one or more wheels attached under the shelf.   
     
     
         8 . The registration device according to  claim 1 , further comprising:
 an input device through which identification information about the customer can be input.   
     
     
         9 . The registration device according to  claim 1 , further comprising:
 a projector configured to project an image on a floor, the image indicating an area including the first and second areas.   
     
     
         10 . The registration device according to  claim 1 , further comprising:
 a handle on each of side surfaces of the shelf.   
     
     
         11 . A method carried out by a registration device for registering a commodity to be purchased by a customer, the method comprising:
 capturing an image of a first area and a second area outside the first area;   starting tracking of a customer who has entered the second area from outside the first and second areas based on the captured image;   determining whether a commodity is taken from a shelf based on changes in weight measured by a sensor;   upon determining that the commodity has been taken, determining whether the tracked customer has performed a particular action within the first area;   upon determining that the tracked customer has performed the particular action, determining whether the customer has entered the second area; and   upon determining that the customer has entered the second area from the first area, registering the taken commodity as a commodity being purchased by the customer.   
     
     
         12 . The method according to  claim 11 , further comprising:
 identifying the customer as a registered customer of a store based on the image captured by the camera.   
     
     
         13 . The method according to  claim 12 , further comprising:
 performing settlement processing on the taken commodity when the identified customer enters the second area from the first area.   
     
     
         14 . The method according to  claim 11 , further comprising:
 upon determining that a customer who is not being tracked performs the particular action, issuing a warning signal.   
     
     
         15 . The method according to  claim 14 , further comprising:
 displaying an error screen on a display when the warning signal is issued.   
     
     
         16 . The method according to  claim 14 , further comprising:
 outputting a sound when the warning signal is issued.   
     
     
         17 . The method according to  claim 11 , wherein one or more wheels are attached under the shelf. 
     
     
         18 . The method according to  claim 11 , further comprising:
 receiving identification information about the customer via an input device.   
     
     
         19 . The method according to  claim 11 , further comprising:
 projecting an image on a floor, the image indicating an area including the first and second areas.   
     
     
         20 . A non-transitory computer readable medium storing a program causing a computer to execute a method for registering a commodity to be purchased by a customer, the method comprising:
 capturing an image of a first area and a second area outside the first area;   starting tracking of a customer who has entered the second area from outside the first and second areas based on the captured image;   determining whether a commodity is taken from a shelf based on changes in weight measured by a sensor;   upon determining that the commodity has been taken, determining whether the tracked customer has performed a particular action within the first area;   upon determining that the tracked customer has performed the particular action, determining whether the customer has entered the second area from the first area; and   upon determining that the customer has entered the second area from the first area, registering the taken commodity as a commodity being purchased by the customer.