A CROSS-MODAL FUSION NETWORK BASED ON SELF-ATTENTION AND RESIDUAL STRUCTURE FOR MULTIMODAL EMOTION RECOGNITION

Related tags

Deep LearningCFN-SR
Overview

CFN-SR

A CROSS-MODAL FUSION NETWORK BASED ON SELF-ATTENTION AND RESIDUAL STRUCTURE FOR MULTIMODAL EMOTION RECOGNITION

The audio-video based multimodal emotion recognition has attracted a lot of attention due to its robust performance. Most of the existing methods focus on proposing different cross-modal fusion strategies. However, these strategies introduce redundancy in the features of different modalities without fully considering the complementary properties between modal information, and these approaches do not guarantee the non-loss of original semantic information during intra- and inter-modal interactions. In this paper, we propose a novel cross-modal fusion network based on self-attention and residual structure (CFN-SR) for multimodal emotion recognition. Firstly, we perform representation learning for audio and video modalities to obtain the semantic features of the two modalities by efficient ResNeXt and 1D CNN, respectively. Secondly, we feed the features of the two modalities into the cross-modal blocks separately to ensure efficient complementarity and completeness of information through the self-attention mechanism and residual structure. Finally, we obtain the output of emotions by splicing the obtained fused representation with the original representation. To verify the effectiveness of the proposed method, we conduct experiments on the RAVDESS dataset. The experimental results show that the proposed CFN-SR achieves the state-of-the-art and obtains 75.76% accuracy with 26.30M parameters.

image-20211007154526694

Setup

Install dependencies

pip install opencv-python moviepy librosa sklearn

Download the RAVDESS dataset using the bash script

bash scripts/download_ravdess.sh <path/to/RAVDESS>

Or download the files manually

and follow the folder structure below and have .csv files in landmarks/ (do not modify file names)

RAVDESS/
    landmarks/
        .csv landmark files
    Actor_01/
    ...
    Actor_24/

Preprocess the dataset using the following

python dataset_prep.py --datadir <path/to/RAVDESS>

Generated folder structure (do not modify file names)

RAVDESS/
    landmarks/
        .csv landmark files
    Actor_01/
    ...
    Actor_24/
    preprocessed/
        Actor_01/
        ...
        Actor_24/
            01-01-01-01-01-01-24.mp4/
                frames/
                    .jpg frames
                audios/
                    .wav raw audio
                    .npy MFCC features
            ...

Download checkpoints folder from Google Drive. The following script downloads all pretrained models (unimodal and MSAF) for all 6 folds.

bash scripts/download_checkpoints.sh

Train

python main_msaf.py --datadir <path/to/RAVDESS/preprocessed> --checkpointdir checkpoints --train

All parameters

usage: main_msaf.py [-h] [--datadir DATADIR] [--k_fold K_FOLD] [--lr LR]
                    [--batch_size BATCH_SIZE] [--num_workers NUM_WORKERS]
                    [--epochs EPOCHS] [--checkpointdir CHECKPOINTDIR] [--no_verbose]
                    [--log_interval LOG_INTERVAL] [--no_save] [--train]

Result

Model Fusion Stage Accuracy #Params
Averaging Late 68.82 25.92M
Multiplicative Late 70.35 25.92M
Multiplication Late 70.56 25.92M
Concat + FC Early 71.04 26.87M
MCBP Early 71.32 51.03M
MMTM Model 73.12 31.97M
MSAF Model 74.86 25.94M
ERANNs Model 74.80
CFN-SR(Ours) Model 75.76 26.30M

Reference

  • Note that some codes references MSAF
Owner
skeleton
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