This paper presents a novel semi-supervised deep learning algorithm for
retrieving similar 2D and 3D videos based on visual content. The proposed
approach combines the power of deep convolutional and recurrent neural networks
with dynamic time warping as a similarity measure. The proposed algorithm is
designed to handle large video datasets and retrieve the most related videos to
a given inquiry video clip based on its graphical frames and contents. We split
both the candidate and the inquiry videos into a sequence of clips and convert
each clip to a representation vector using an autoencoder-backed deep neural
network. We then calculate a similarity measure between the sequences of
embedding vectors using a bi-directional dynamic time-warping method. This
approach is tested on multiple public datasets, including CC\_WEB\_VIDEO,
Youtube-8m, S3DIS, and Synthia, and showed good results compared to
state-of-the-art. The algorithm effectively solves video retrieval tasks and
outperforms the benchmarked state-of-the-art deep learning model.

该论文提出了一种新颖的半监督深度学习算法，用于基于视觉内容检索相似的 2D 和 3D 视频。该算法采用深度卷积和递归神经网络与动态时间扭曲作为相似性度量，能够处理大规模视频数据集，并根据图形帧和内容检索与给定查询视频片段最相关的视频。该方法在包括 CC_WEB_VIDEO、Youtube-8m、S3DIS 和 Synthia 等多个公共数据集上进行了测试，与最先进的方法相比表现良好。该算法有效地解决了视频检索任务，并优于基准深度学习模型。