Table 1 Summery of the related work.

From: Improved facial emotion recognition model based on a novel deep convolutional structure

Authors

Year

Publisher

Pros

Limitations & Challenges

Umer et al.3

2022

Springer

The trade-off between augmentation and deep features has an impact on the detection ability of the FER systems in unfamiliar test samples.

-

Zang5

2019

ICML conf.

Avoids aliasing issues caused by down sampling, demonstrating that blur filters perform effectively for an extensive variety of visual identification applications.

Efficiency depends on type of CNN architectures and the recognition task.

Chowdary et al.9

2021

Springer

Achieved higher performance after eliminating the fully connected layers from pre trained models.

The proposed model was using only one dataset in testing phase.

Abate et al.10

2022

Springer

Investigated the influence of masked faces on recognizing emotions pointing attention to the challenging occlusion problem.

Low FER accuracy which still needs to be improved.

Shaik et al.11

2022

Springer

A deep neural network was constructed that accepts both local and global attention information that outperformed many recent advances in FER.

Only operated on frontal pictures and was confined to real-time invariant face data.

Saurav et al.12

2022

Springer

Outperformed current CNN models in terms of computing efficiency and recognition accuracy.

Performed poorly in fear class.

Rajan et al.13

2020

IET Image Processing

Performed well in distinguishing surprised and joyful reactions.

Mis-classification in sadness and anger.

Khattak et al.14

2022

Springer

An effective method to extract age, gender, and emotions information from facial images.

Just one dataset was carried-out on gender and age experiments.

Bentomi et al.15

2022

Springer

avoid overfitting by using the early stopping criterion and also improved the overall accuracy.

The small size of the datasets

Liu et al.16

2021

IEEE

Utilization of face alignment to minimize the influence of ambient noise.

Efficiently distinguishes between comparable sentiments such as fear and disgust.

The accuracy still needs to be improved.

Wang et al.17

2021

Wiley Online Library

Solve the problem of two tasks divergence (classification and regression).

Classification task and emotion recognition accuracy still need to be improved.

Taskiran et al.18

2020

Wiley

Useful for performing face recognition in videos extracted from systems that may contain images with illumination variations, noise, and blur while performing face recognition

The accuracy still needs to be improved for better face recognition.

Saurav et al.19

2021

Springer

The suggested model functioned well in identifying facial images in the neutral, surprise, disgust, and happiness classes

Struggled in the sad and afraid classes

Devi et al.20

2021

Springer

achieved significant classification accuracy

The major issue was the high training time

Li et al.21

2021

ScienceDirect

Overcome the overfitting problem that may occur during training phase

More images were needed to be collected to propose a better-optimized algorithm and also to make more improvements in facial recognition

Arora et al.22

2021

Springer

Achieved high classification accuracy.

Only one dataset in the testing phase was used

Zheng et al.23

2022

IEEE

Increase the capacity of instructors to recognize expressions in real-world world environments.

A new dataset of intensity-based facial expressions known as EIDB-13 was generated.

For better feature extraction, the proposed approach has to be optimized further.

Fontaine et al.22

2022

Wiley Online Library

The model was beneficial in recognizing severe pain, and accurately predicted pain intensity.

The scientists did not compare the results to human observers’ assessments.

Lu et al.23

2022

ScienceDirect

Well recognized and identified the face and emotion in real time.

Limited to three emotions only (happy, regular, and unhappy).

Mohan et al.6

2020

IEEE

Succeeded to extract local characteristics from face images.

The high training time of this work hindered its performance

Mohan et al.26

2021

Springer

Simple architecture that can recognize and identify the face and emotion in real time.

Average recognition rates on all applied datasets.

Mohan et al.27

2021

IEEE

DCN model which used to accurately identify the multiscale variations of deceit.

-

Suzuki et al.28

2022

IEEE

Applying the anti-aliased CNN in data-limited situations achieving more accurate results.

Need to test model on more datasets for generalization.