A Non-reference Just Recognized Distortion Prediction Framework for Object Detection Task

This work proposed a non-reference Just Recognized Distortion (JRD) prediction framework for object detection task based on Generative Adversarial Network (GAN) image generation. Inspired by the concept of Just Noticeable Difference (JND), the JRD is used to describe the threshold of image distortion acceptable for machine vision tasks. Centered around JRD, the proposed framework primarily consisted of a JRD image generation network and a residual-guided JRD regression network. Among them, the JRD image generation network was trained in conjunction with a multi-scale discriminator in the form of GAN. Additionally, we had compiled a dataset comprising over 130,000 images for the YOLOv7 object detection task, and it was used to validate the effectiveness of our proposed framework. Experiments indicated that the framework can approximate the JRD for object detection task with notable accuracy. Consequently, adopting our proposed framework for image compression could reduce the bitrate by 50% while maintaining high accuracy in task.