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Object recognition in optical camera communication enabled by image restoration.

Meitong Guo, Pinpin Zhang, Yimao Sun

|October 19, 2022

Summary

This summary is machine-generated.

This study introduces an improved optical camera communication (OCC) system that enables simultaneous data transmission and object recognition. By using image restoration and object avoidance techniques, the system enhances image quality for accurate object recognition.

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Area of Science:

Optical Communications
Computer Vision

Background:

Visible Light Communication (VLC) systems utilize optical camera communication (OCC) by repurposing cameras as receivers.
Standard cameras in smartphones and CCTV systems experience image distortion when used for OCC due to modulated light.
This distortion hinders the primary functions of cameras, such as object recognition.

Purpose of the Study:

To develop an improved OCC system capable of performing both data communication and object recognition concurrently.
To enhance the accuracy of object recognition in OCC systems despite image distortions.
To maintain efficient data rates within the OCC system.

Main Methods:

An image restoration (IR) scheme was devised to repair light-modulated pixel distortions.
An object avoidance (OA) scheme was engineered to mitigate the impact of background objects on OCC frames.
A prototype system was implemented to evaluate the combined performance of IR and OA.

Main Results:

The proposed image restoration scheme significantly improved object recognition accuracy by over 37% compared to baseline methods.
The system demonstrated the capability for simultaneous data communication and object recognition.
The object avoidance scheme helped maintain a reasonable data rate during communication.

Conclusions:

The developed OCC system effectively integrates data communication and object recognition.
The image restoration technique is crucial for enhancing object recognition performance in OCC.
The proposed system offers a viable solution for applications requiring dual functionality in optical camera communication.