2 RELATED WORK
The QCNN model achieves 99.67% validation
accuracy and shows excellent generalization in brain
tumor classification. Over the 20 epochs, accuracy
increases, yet distinguishing between benign,
meningioma and malignant; glioma is diffi- cult.
Evaluations using real images demonstrate that it can
be integrated into clinics due to its high accuracy and
robustness against overfitting (Khan et al., 2024).
The accuracy of the optimized YOLOv7 model for
detecting glioma, meningioma, and pituitary tumors
from MRI images was 99.5%. With data
augmentation, detection quality im- proved further,
resulting in 497 correct detections, including three
false positive detections. The model achieves 99.5%
precision and 99.3% recall, outperforming state-of-
the-art techniques, though improvement is necessary
for small and noncircular tumors (Abdusalomov et
al., 2023).
In this work, three hybrid CNN-based high-
accuracy clas- sification models are developed for
brain tumor classification. The first one gets 99.53%
on the accuracy, the second one on the
classification of tumors into five types at 93.81%,
and the last one on gliomas grading at 98.56%.
Optimizing these through grid search and with access
to extensive clinical data allows for these models to
greatly outperform traditional practices in early
detection and diagnosis (Srinivasan et al., 2024).
The 16-layer CNN achieved an impressive
accuracy of 98.88% in binary classification and
97.83% in classifying tumors into three categories
using MRI datasets. By in- corporating hybrid
oversampling, we were able to enhance performance
greatly, outshining traditional machine learning
models like random forest, SVM, and k-NN when it
comes to accuracy, sensitivity, specificity, and F1
score (Singh et al., 2023).
The PDCNN model showed important results,
hitting 97.33% accuracy on dataset-I, 97.60% on
Figshare dataset-
II, and an impressive 98.12% on
Kaggle dataset-III. By integrating two CNNs with
differing window sizes, we were able to enhance
feature extraction, surpassing the performance of
existing methods (Rahman, T., & Islam, M. S. 2023).
The EDN-SVM classifier demonstrated an
impressive accu- racy of 97.93%, with a sensitivity of
92% and specificity of 98 in MRI brain tumor
detection. By using ACEA, median filtering, fuzzy c-
means segmentation, and GLCM, it not only
surpassed traditional methods in terms of precision
but also greatly improved speed, establishing itself as
a strong tool for automated diagnosis (Anantharajan
et al., 2024).
This study dives into CNN-based brain tumor
classification using a dataset of 7,022 MRI images,
exploring models like VGG, ResNet, DenseNet, and
SqueezeNet. DenseNet deliv- ered an impressive
accuracy of 85% when paired with SVM, while a
hybrid model achieved 83% with LDA (Gu¨ler, M.,
& Namlı, E. 2024).
Saeedi and colleagues took a deep dive into using
deep learning for classifying brain tumors based on
3,264 MRI scans. Their 2D CNN model hit an
impressive accuracy of 96.47%, along with a recall
rate of 95%. Meanwhile, the autoencoder performed
admirably as well, achieving 95.63% accuracy and a
94% recall. On the conventional front, K-NN stood
out with an accuracy of 86% (Saeedi et al., 2023).
The A-GRU model, enhanced with ADAM and
data aug- mentation techniques, achieved a
remarkable accuracy of 99.32% in classifying brain
tumors. It outperformed the CNN, A-CNN, LSTM,
A-LSTM, and GRU models. These results were
further improved through careful hyperparameter
tuning (Saboor et al., 2024).
In this study, we explored using YOLOv3 through
YOLOv7 models for classifying meningioma
firmness. Among these, YOLOv7 stood out with
impressive results: a specificity of 97.95%, a
balanced accuracy of 98.97%, and an F1-score of
99.24%. It outperformed both SVM and KNN
techniques (Alhussainan et al., 2024). By analyzing
3,762 MRI images from Kaggle, we found that
ResNet-50 achieved an impressive 99.82%
accuracy during training and 99.5% during testing
when using the SGD opti- mizer. Through
preprocessing, pixel reduction, and optimizing with
binary cross-entropy, we saw a boost in
performance, finally achieving a 96.10% F1-score,
96.50% precision, and 95.62% recall (Asad et al.,
2023).
In this study, we looked at how deep transfer
learning can help diagnose brain tumors using
models like ResNet152, VGG19, DenseNet169, and
MobileNetv3 on a Kaggle dataset. MobileNetv3
stood out with the highest accuracy, hitting
99.75%, while ResNet152 followed closely with
98.5%. (Mathivanan et al., 2024) The research
achieved an average entropy of 7.32 bits, which
helped in reducing saturation effects. It also recorded
a PSNR of 29.07 dB and a contrast level of 39.47 dB,
surpassing earlier techniques like GHE and BBHE.
With the enhanced Inception V3 model, we reached
an impressive accuracy of 98.89%, outperforming
AlexNet, VGG-16, and GoogLeNet in tumor
classification tasks (Agarwal et al., 2024).