activity
20202026
most citedReconstruction of Time-varying Graph Signals via Sobolev Smoothness

63 citations · 107 across the 16 of their papers we have counts for

collaborators

18 papers

cs.CV2026

Weight and Height Estimation from a Single Human Image Captured in the Wild

Hira Yaseen, Arif Mahmood, Waqas Sultani

A person's physical characteristics such as weight and height are important indicators of his physical and mental health, daily life routines and finances. Body Mass Index (BMI) is…

cs.CV2023★ 5 cited

Improving Underwater Visual Tracking With a Large Scale Dataset and Image Enhancement

Basit Alawode, Fayaz Ali Dharejo, Mehnaz Ummar +6

This paper presents a new dataset and general tracker enhancement method for Underwater Visual Object Tracking (UVOT). Despite its significance, underwater tracking has remained un…

cs.CV2023

Learning Structure Aware Deep Spectral Embedding

Hira Yaseen, Arif Mahmood

Spectral Embedding (SE) has often been used to map data points from non-linear manifolds to linear subspaces for the purpose of classification and clustering. Despite significant a…

cs.CV2023

Unsupervised Mutual Transformer Learning for Multi-Gigapixel Whole Slide Image Classification

Sajid Javed, Arif Mahmood, Talha Qaiser +2

Classification of gigapixel Whole Slide Images (WSIs) is an important prediction task in the emerging area of computational pathology. There has been a surge of research in deep le…

cs.CV2023

Single-branch Network for Multimodal Training

Muhammad Saad Saeed, Shah Nawaz, Muhammad Haris Khan +4

With the rapid growth of social media platforms, users are sharing billions of multimedia posts containing audio, images, and text. Researchers have focused on building autonomous…

cs.LG2023

Higher-order Sparse Convolutions in Graph Neural Networks

Jhony H. Giraldo, Sajid Javed, Arif Mahmood +2

Graph Neural Networks (GNNs) have been applied to many problems in computer sciences. Capturing higher-order relationships between nodes is crucial to increase the expressive power…

cs.CV2022

Face Pyramid Vision Transformer

Khawar Islam, Muhammad Zaigham Zaheer, Arif Mahmood

A novel Face Pyramid Vision Transformer (FPVT) is proposed to learn a discriminative multi-scale facial representations for face recognition and verification. In FPVT, Face Spatial…

cs.LG2022★ 3 cited

Data Augmentation for Graph Data: Recent Advancements

Maria Marrium, Arif Mahmood

Graph Neural Network (GNNs) based methods have recently become a popular tool to deal with graph data because of their ability to incorporate structural information. The only hurdl…

eess.SP2022★ 63 cited

Reconstruction of Time-varying Graph Signals via Sobolev Smoothness

Jhony H. Giraldo, Arif Mahmood, Belmar Garcia-Garcia +2

Graph Signal Processing (GSP) is an emerging research field that extends the concepts of digital signal processing to graphs. GSP has numerous applications in different areas such…

eess.IV2022★ 9 cited

Lightweight Encoder-Decoder Architecture for Foot Ulcer Segmentation

Shahzad Ali, Arif Mahmood, Soon Ki Jung

Continuous monitoring of foot ulcer healing is needed to ensure the efficacy of a given treatment and to avoid any possibility of deterioration. Foot ulcer segmentation is an essen…

cs.CV2022

Stabilizing Adversarially Learned One-Class Novelty Detection Using Pseudo Anomalies

Muhammad Zaigham Zaheer, Jin Ha Lee, Arif Mahmood +2

Recently, anomaly scores have been formulated using reconstruction loss of the adversarially learned generators and/or classification loss of discriminators. Unavailability of anom…

cs.CV2022★ 1 cited

Clustering Aided Weakly Supervised Training to Detect Anomalous Events in Surveillance Videos

Muhammad Zaigham Zaheer, Arif Mahmood, Marcella Astrid +1

Formulating learning systems for the detection of real-world anomalous events using only video-level labels is a challenging task mainly due to the presence of noisy labels as well…

cs.CV2022★ 3 cited

Quantification of Occlusion Handling Capability of a 3D Human Pose Estimation Framework

Mehwish Ghafoor, Arif Mahmood

3D human pose estimation using monocular images is an important yet challenging task. Existing 3D pose detection methods exhibit excellent performance under normal conditions howev…

cs.CV2022

Generative Cooperative Learning for Unsupervised Video Anomaly Detection

Muhammad Zaigham Zaheer, Arif Mahmood, Muhammad Haris Khan +3

Video anomaly detection is well investigated in weakly-supervised and one-class classification (OCC) settings. However, unsupervised video anomaly detection methods are quite spars…

cs.CV2021★ 23 cited

Cleaning Label Noise with Clusters for Minimally Supervised Anomaly Detection

Muhammad Zaigham Zaheer, Jin-ha Lee, Marcella Astrid +2

Learning to detect real-world anomalous events using video-level annotations is a difficult task mainly because of the noise present in labels. An anomalous labelled video may actu…

cs.CV2021

Fake Visual Content Detection Using Two-Stream Convolutional Neural Networks

Bilal Yousaf, Muhammad Usama, Waqas Sultani +2

Rapid progress in adversarial learning has enabled the generation of realistic-looking fake visual content. To distinguish between fake and real visual content, several detection t…

cs.CV2020

CLAWS: Clustering Assisted Weakly Supervised Learning with Normalcy Suppression for Anomalous Event Detection

Muhammad Zaigham Zaheer, Arif Mahmood, Marcella Astrid +1

Learning to detect real-world anomalous events through video-level labels is a challenging task due to the rare occurrence of anomalies as well as noise in the labels. In this work…

cs.CV2020

Localizing Firearm Carriers by Identifying Human-Object Pairs

Abdul Basit, Muhammad Akhtar Munir, Mohsen Ali +1

Visual identification of gunmen in a crowd is a challenging problem, that requires resolving the association of a person with an object (firearm). We present a novel approach to ad…