Commercial product size determination device and commercial product size determination method

Abstract

The present invention provides a commercial product size determination device and a commercial product size determination method to determine the size of a finger of a user wearing a ring-type wearable terminal. The commercial product size determination device comprises an image acquisition unit (10) that acquires a photographic image showing a hand on which a card of a known size is placed; a card detection unit (20) that detects a size of the card on the image in the photographic image; a finger joint measurement unit (34) that measures a size of the joint of the finger for the ring on the image in the photographic image; a finger size estimation unit (40) that estimates an actual size of the joint of the finger for the ring from a measured value of the size of the joint of the finger ofthe ring on the image in the photographic image, based on a ratio between the known size of the card and the size of the card in the photographic image detected; and a ring size determination unit (50) that determines a size of the ring based on an estimated actual size of the joint of the finger for the ring.

Description

technical field [0001] The invention relates to a product size judgment technology. Background technique [0002] IC cards perform wireless communication and receive and send various data when they are close to the reader / writer. They are easy to handle and are popular as access management cards, employee cards, transportation cards, and credit cards. [0003] A ring having the same function as an IC card is known. If the RFID embedding ring disclosed in Patent Document 1 is used, it is not necessary to take out an IC card from a bag or a pocket of clothes to pass through an automatic ticket gate of a railway or to pay for shopping. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2015-93004 [0007] Usually, rings are tried on and bought at a store, so you can buy a ring that fits your finger just right. However, ring-type wearable terminals are mostly purchased by mail order through media suc...

AI Technical Summary

Problems solved by technology

In the case of purchasing an item that does not fit your finger, it is necessary to go through complicated procedures such as returning the product, which will result in extra costs for both the consumer and the seller

[0008] Similarly, in the case of buying shoes, clothes, hats, etc. worn on the body through the Internet or mail order, it is difficult to choose a size that is just right for your body because you cannot try them on.

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