Double-channel language feature mining based model for video description
MULTIMEDIA TOOLS AND APPLICATIONS(2020)
Abstract
Video description is to translate video to natural language. Many recent effective models for the task are developed with the popular deep convolutional neural networks and recurrent neural networks. However, the abstractness and representation ability of visual motion feature and language feature are usually ignored in most of popular methods. In this work, a framework based on double-channel language feature mining is proposed, where deep transformation layer (DTL) is employed in both of the stages of motion feature extraction and language modeling, to increase the number of feature transformation and enhance the power of representation and generalization of the features. In addition, the early deep sequential fusion strategy is introduced into the model with element-wise product for feature fusing. Moreover, for more comprehensive information, the late deep sequential fusion strategy is also employed, and the output probabilities from the modules with DTL and without DTL are fused with weight average for further improving accuracy and semantics of generated sentence. Multiple experiments and ablation study are conducted on two public datasets including Youtube2Text and MSR-VTT2016, and competitive results compared to the other popular methods are achieved. Especially on CIDEr metric, the performance reaches to 82.5 and 45.9 on the two datasets respectively, demonstrating the effectiveness of the proposed model.
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Key words
Double-channel,Language feature,Video description,LSTM,Deep fusion
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