Time-lapse photography is employed in movies and promotional films because it can reflect the passage of time in a short time and strengthen the visual attraction. However, since it takes a long time and requires the stable shooting, it is a great challenge for the photographer. In this article, we propose a time-lapse photography system with virtual and real robots. To help users shoot time-lapse videos efficiently, we first parameterize the time-lapse photography and propose a parameter optimization method. For different parameters, different aesthetic models, including image and video aesthetic quality assessment networks, are used to generate optimal parameters. Then we propose a time-lapse photography interface to facilitate users to view and adjust parameters and use virtual robots to conduct virtual photography in a three-dimensional scene. The system can also export the parameters and provide them to real robots so that the time-lapse videos can be filmed in the real world. In addition, we propose a time-lapse photography aesthetic assessment method that can automatically evaluate the aesthetic quality of time-lapse video. The experimental results show that our method can efficiently obtain the time-lapse videos. We also conduct a user study. The results show that our system has the similar effect as professional photographers and is more efficient.
翻译:电影和促销影片中采用了时间过错摄影,因为它能反映短短时间的时间流,并且加强视觉吸引力。然而,由于时间过错摄影需要很长的时间并且需要稳定的拍摄,这对摄影师来说是一个巨大的挑战。在这个文章中,我们提出一个带有虚拟和真实机器人的时间过错摄影系统。为了帮助用户有效拍摄时间过错录像,我们首先将时间过摄影参数参数参数参数参数化,并提议一个参数优化方法。对于不同的参数,不同的审美模型,包括图像和视频审美质量评估网络,被用来生成最佳参数。然后我们提议一个时间过错摄影界面,以便利用户查看和调整参数,并利用虚拟机器人在三维场进行虚拟摄影。这个系统还可以输出参数,并将它们提供给真实的机器人,以便在现实世界中拍摄时间过错录像。此外,我们提出了一个时间过错摄影评估方法,可以自动评估时间过错视频的美学质量。实验结果表明,我们的方法可以有效地获取时间过错录像。我们还进行用户研究。结果显示,我们的系统具有类似的专业性效果。