Khawaja Tehseen Ahmed

Dr. Khawaja Tehseen Ahmed


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 October 2022 in Complex & Intelligent Systems
Verified
Journal Article
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Ahmad NaeemAhmad Naeem
Ahmad Naeem
TATayyaba Anees
Tayyaba Anees
KAKhawaja Tehseen Ahmed
Khawaja Tehseen Ahmed
Rizwan Ali NaqviRizwan Ali Naqvi
Rizwan Ali Naqvi
Shabir AhmadShabir Ahmad
Shabir Ahmad
TWTaegkeun Whangbo
Taegkeun Whangbo
Deep learning for image retrieval has been used in this era, but image retrieval with the highest accuracy is the biggest challenge, which still lacks auto-correlation for feature extraction and description. In this paper, a novel deep learning technique for achieving highly accurate results for image retrieval is proposed, which implements a convolutional neural network with auto-correlation, gradient computation, scaling, filter, and localization coupled with state-of-the-art content-based image retrieval methods. For this purpose, novel image features are fused with signatures produced by the VGG-16. In the initial step, images from rectangular neighboring key points are auto-correlated. The image smoothing is achieved by computing intensities according to the local gradient. The result of Gaussian approximation with the lowest scale and suppression is adjusted by the by-box filter with the standard deviation adjusted to the lowest scale. The parameterized images are smoothed at different scales at various levels to achieve high accuracy. The principal component analysis has been used to reduce feature vectors and combine them with the VGG features. These features are integrated with the spatial color coordinates to represent color channels. This experimentation has been performed on Cifar-100, Cifar-10, Tropical fruits, 17 Flowers, Oxford, and Corel-1000 datasets. This study has achieved an extraordinary result for the Cifar-10 and Cifar-100 datasets. Similarly, the results of the study have shown efficient results for texture datasets of 17 Flowers and Tropical fruits. Moreover, when compared to state-of-the-art approaches, this research produced outstanding results for the Corel-1000 dataset.

13 April 2020 in Symmetry
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Journal Article
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KKKhadija Kanwal
Khadija Kanwal
KAKhawaja Tehseen Ahmed
Khawaja Tehseen Ahmed
RKRashid Khan
Rashid Khan
AAAliya Abbasi
Aliya Abbasi
JLJing Li
Jing Li
This article presents symmetry of sampling, scoring, scaling, filtering and suppression over deep convolutional neural networks in combination with a novel content-based image retrieval scheme to retrieve highly accurate results. For this, fusion of ResNet generated signatures is performed with the innovative image features. In the first step, symmetric sampling is performed on the images from the neighborhood key points. Thereafter, the rotated sampling patterns and pairwise comparisons are performed, which return image smoothing by applying standard deviation. These values of smoothed intensity are calculated as per local gradients. Box filtering adjusts the results of approximation of Gaussian with standard deviation to the lowest scale and suppressed by non-maximal technique. The resulting feature sets are scaled at various levels with parameterized smoothened images. The principal component analysis (PCA) reduced feature vectors are combined with the ResNet generated feature. Spatial color coordinates are integrated with convolutional neural network (CNN) extracted features to comprehensively represent the color channels. The proposed method is experimentally applied on challenging datasets including Cifar-100 (10), Cifar-10 (10), ALOT (250), Corel-10000 (10), Corel-1000 (10) and Fashion (15). The presented method shows remarkable results on texture datasets ALOT with 250 categories and fashion (15). The proposed method reports significant results on Cifar-10 and Cifar-100 benchmarks. Moreover, outstanding results are obtained for the Corel-1000 dataset in comparison with state-of-the-art methods.

6 February 2021 in Sensors
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Journal Article
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KKKhadija Kanwal
Khadija Kanwal
KAKhawaja Tehseen Ahmed
Khawaja Tehseen Ahmed
RKRashid Khan
Rashid Khan
NANaji Alhusaini
Naji Alhusaini
JLJing Li
Jing Li
Convolutional neural networks (CNN) are relational with grid-structures and spatial dependencies for two-dimensional images to exploit location adjacencies, color values, and hidden patterns. Convolutional neural networks use sparse connections at high-level sensitivity with layered connection complying indiscriminative disciplines with local spatial mapping footprints. This fact varies with architectural dependencies, insight inputs, number and types of layers and its fusion with derived signatures. This research focuses this gap by incorporating GoogLeNet, VGG-19, and ResNet-50 architectures with maximum response based Eigenvalues textured and convolutional Laplacian scaled object features with mapped colored channels to obtain the highest image retrieval rates over millions of images from versatile semantic groups and benchmarks. Time and computation efficient formulation of the presented model is a step forward in deep learning fusion and smart signature capsulation for innovative descriptor creation. Remarkable results on challenging benchmarks are presented with a thorough contextualization to provide insight CNN effects with anchor bindings. The presented method is tested on well-known datasets including ALOT (250), Corel-1000, Cifar-10, Corel-10000, Cifar-100, Oxford Buildings, FTVL Tropical Fruits, 17-Flowers, Fashion (15), Caltech-256, and reported outstanding performance. The presented work is compared with state-of-the-art methods and experimented over tiny, large, complex, overlay, texture, color, object, shape, mimicked, plain and occupied background, multiple objected foreground images, and marked significant accuracies.

24 May 2017 in Cluster Computing
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KAKhawaja Tehseen Ahmed
Khawaja Tehseen Ahmed
MUHAMMAD AMJAD IQBALMUHAMMAD AMJAD IQBAL
MUHAMMAD AMJAD IQBAL

22 October 2024 in Multimedia Tools and Applications
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Journal Article
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ASAiza Shabir
Aiza Shabir
KAKhawaja Tehseen Ahmed
Khawaja Tehseen Ahmed
Muhammad MujahidMuhammad Mujahid
Muhammad Mujahid
KKKhadija Kanwal
Khadija Kanwal