GO-Finder: A Registration-Free Wearable System for Assisting Users in Finding Lost Objects via Hand-Held Object Discovery

TL;DR

GO-Finder is a wearable system that helps users find lost objects without prior registration by automatically detecting hand-held items and providing visual timelines for easy retrieval, reducing effort and mental load.

Contribution

It introduces a registration-free approach using wearable cameras for object discovery, enabling automatic detection and retrieval of various objects through visual timelines.

Findings

Improved accuracy in object retrieval

Reduced mental load during search tasks

Effective visual cues for object location

Abstract

People spend an enormous amount of time and effort looking for lost objects. To help remind people of the location of lost objects, various computational systems that provide information on their locations have been developed. However, prior systems for assisting people in finding objects require users to register the target objects in advance. This requirement imposes a cumbersome burden on the users, and the system cannot help remind them of unexpectedly lost objects. We propose GO-Finder ("Generic Object Finder"), a registration-free wearable camera based system for assisting people in finding an arbitrary number of objects based on two key features: automatic discovery of hand-held objects and image-based candidate selection. Given a video taken from a wearable camera, Go-Finder automatically detects and groups hand-held objects to form a visual timeline of the objects. Users can retrieve the last appearance of the object by browsing the timeline through a smartphone app. We conducted a user study to investigate how users benefit from using GO-Finder and confirmed improved accuracy and reduced mental load regarding the object search task by providing clear visual cues on object locations.