论文标题
关于合成数据重新识别的适用性
On the Applicability of Synthetic Data for Re-Identification
论文作者
论文摘要
这项贡献表明,在重新识别的背景下,将生成性对抗网络(GAN)应用于Epal托盘块的图像以增强数据集的可行性。对于许多重新识别方法的工业应用,否则在非实验室环境中将无法实现足够的数量数据集。使用最先进的GAN结构,即Cyclean,旋转到其左侧的托盘块的图像是根据视觉中心托盘块的图像生成的,基于旋转的托盘块的图像,这些图像是作为先前记录和发布的数据集的一部分记录的。在此过程中,保留了托盘块表面结构的唯一芯片木模式,仅改变托盘块本身的方向。通过这样做,生成了用于重新识别测试和培训目的的合成数据,其方式与普通数据扩展不同。总共生成了1,004张托盘块的新图像。使用在原始图像上训练的透视分类器,然后应用于合成图像,然后比较两组图像之间的准确性。原始图像的分类精度为98%,合成图像为92%。此外,生成的图像也用于重新识别任务,以便基于合成图像重新识别原始图像。在这种情况下,合成图像的准确性高达88%,而原始图像为96%。通过此评估,它是建立的,无论生成的托盘块图像是否与原始材料非常相似。
This contribution demonstrates the feasibility of applying Generative Adversarial Networks (GANs) on images of EPAL pallet blocks for dataset enhancement in the context of re-identification. For many industrial applications of re-identification methods, datasets of sufficient volume would otherwise be unattainable in non-laboratory settings. Using a state-of-the-art GAN architecture, namely CycleGAN, images of pallet blocks rotated to their left-hand side were generated from images of visually centered pallet blocks, based on images of rotated pallet blocks that were recorded as part of a previously recorded and published dataset. In this process, the unique chipwood pattern of the pallet block surface structure was retained, only changing the orientation of the pallet block itself. By doing so, synthetic data for re-identification testing and training purposes was generated, in a manner that is distinct from ordinary data augmentation. In total, 1,004 new images of pallet blocks were generated. The quality of the generated images was gauged using a perspective classifier that was trained on the original images and then applied to the synthetic ones, comparing the accuracy between the two sets of images. The classification accuracy was 98% for the original images and 92% for the synthetic images. In addition, the generated images were also used in a re-identification task, in order to re-identify original images based on synthetic ones. The accuracy in this scenario was up to 88% for synthetic images, compared to 96% for original images. Through this evaluation, it is established, whether or not a generated pallet block image closely resembles its original counterpart.