activity
20142023
most citedA Self-Reasoning Framework for Anomaly Detection Using Video-Level Labels

115 citations · 185 across the 16 of their papers we have counts for

collaborators

17 papers

cs.CV2023

Detection and Localization of Firearm Carriers in Complex Scenes for Improved Safety Measures

Arif Mahmood, Abdul Basit, M. Akhtar Munir +1

Detecting firearms and accurately localizing individuals carrying them in images or videos is of paramount importance in security, surveillance, and content customization. However,…

cs.CV2020★ 9 cited

Masked Linear Regression for Learning Local Receptive Fields for Facial Expression Synthesis

Nazar Khan, Arbish Akram, Arif Mahmood +2

Compared to facial expression recognition, expression synthesis requires a very high-dimensional mapping. This problem exacerbates with increasing image sizes and limits existing e…

cs.CV2020★ 115 cited

A Self-Reasoning Framework for Anomaly Detection Using Video-Level Labels

Muhammad Zaigham Zaheer, Arif Mahmood, Hochul Shin +1

Anomalous event detection in surveillance videos is a challenging and practical research problem among image and video processing community. Compared to the frame-level annotations…

cs.CV2020★ 1 cited

Cross-modal Speaker Verification and Recognition: A Multilingual Perspective

Muhammad Saad Saeed, Shah Nawaz, Pietro Morerio +4

Recent years have seen a surge in finding association between faces and voices within a cross-modal biometric application along with speaker recognition. Inspired from this, we int…

cs.CV2019

Deep Latent Space Learning for Cross-modal Mapping of Audio and Visual Signals

Shah Nawaz, Muhammad Kamran Janjua, Ignazio Gallo +2

We propose a novel deep training algorithm for joint representation of audio and visual information which consists of a single stream network (SSNet) coupled with a novel loss func…

cs.CV2019

Do Cross Modal Systems Leverage Semantic Relationships?

Shah Nawaz, Muhammad Kamran Janjua, Ignazio Gallo +3

Current cross-modal retrieval systems are evaluated using R@K measure which does not leverage semantic relationships rather strictly follows the manually marked image text query pa…

cs.CV2019

Leveraging Orientation for Weakly Supervised Object Detection with Application to Firearm Localization

Javed Iqbal, Muhammad Akhtar Munir, Arif Mahmood +2

Automatic detection of firearms is important for enhancing the security and safety of people, however, it is a challenging task owing to the wide variations in shape, size, and app…

cs.CV2018

Handcrafted and Deep Trackers: Recent Visual Object Tracking Approaches and Trends

Mustansar Fiaz, Arif Mahmood, Sajid Javed +1

In recent years visual object tracking has become a very active research area. An increasing number of tracking algorithms are being proposed each year. It is because tracking has…

cs.CV2018★ 10 cited

Unsupervised RGBD Video Object Segmentation Using GANs

Maryam Sultana, Arif Mahmood, Sajid Javed +1

Video object segmentation is a fundamental step in many advanced vision applications. Most existing algorithms are based on handcrafted features such as HOG, super-pixel segmentati…

cs.CV2018★ 3 cited

Unsupervised Deep Context Prediction for Background Foreground Separation

Maryam Sultana, Arif Mahmood, Sajid Javed +1

In many advanced video based applications background modeling is a pre-processing step to eliminate redundant data, for instance in tracking or video surveillance applications. Ove…

cs.CV2018★ 35 cited

Tracking Noisy Targets: A Review of Recent Object Tracking Approaches

Mustansar Fiaz, Arif Mahmood, Soon Ki Jung

Visual object tracking is an important computer vision problem with numerous real-world applications including human-computer interaction, autonomous vehicles, robotics, motion-bas…

cs.CV2018★ 3 cited

Comparative Study of ECO and CFNet Trackers in Noisy Environment

Mustansar Fiaz, Sajid Javed, Arif Mahmood +1

Object tracking is one of the most challenging task and has secured significant attention of computer vision researchers in the past two decades. Recent deep learning based tracker…

cs.CV2014

Action Classification with Locality-constrained Linear Coding

Hossein Rahmani, Arif Mahmood, Du Huynh +1

We propose an action classification algorithm which uses Locality-constrained Linear Coding (LLC) to capture discriminative information of human body variations in each spatiotempo…

cs.CV2014★ 1 cited

HOPC: Histogram of Oriented Principal Components of 3D Pointclouds for Action Recognition

Hossein Rahmani, Arif Mahmood, Du Q. Huynh +1

Existing techniques for 3D action recognition are sensitive to viewpoint variations because they extract features from depth images which change significantly with viewpoint. In co…

cs.CV2014★ 4 cited

Histogram of Oriented Principal Components for Cross-View Action Recognition

Hossein Rahmani, Arif Mahmood, Du Huynh +1

Existing techniques for 3D action recognition are sensitive to viewpoint variations because they extract features from depth images which are viewpoint dependent. In contrast, we d…

cs.CV2014★ 1 cited

Optimizing Auto-correlation for Fast Target Search in Large Search Space

Arif Mahmood, Ajmal Mian, Robyn Owens

In remote sensing image-blurring is induced by many sources such as atmospheric scatter, optical aberration, spatial and temporal sensor integration. The natural blurring can be ex…

cs.CV2014★ 3 cited

Semi-supervised Spectral Clustering for Classification

Arif Mahmood, Ajmal S. Mian

We propose a Classification Via Clustering (CVC) algorithm which enables existing clustering methods to be efficiently employed in classification problems. In CVC, training and tes…