Search Results for author: Jawadul H. Bappy

Found 9 papers, 3 papers with code

A Skip Connection Architecture for Localization of Image Manipulations

no code implementations IEEE Conference on Computer Vision and Pattern Recognition (CVPR) Workshops 2019 Ghazal Mazaheri, Niluthpol Chowdhury Mithun, Jawadul H. Bappy, Amit K. Roy-Chowdhury

In order to exploit these traces in localizing the tampered regions, we propose an encoder-decoder based network where we fuse representations from early layers in the encoder (which are richer in low-level spatial cues, like edges) by skip pooling with representations of the last layer of the decoder and use for manipulation detection.

Image Manipulation Image Manipulation Detection

Detecting GAN generated Fake Images using Co-occurrence Matrices

no code implementations15 Mar 2019 Lakshmanan Nataraj, Tajuddin Manhar Mohammed, Shivkumar Chandrasekaran, Arjuna Flenner, Jawadul H. Bappy, Amit K. Roy-Chowdhury, B. S. Manjunath

The advent of Generative Adversarial Networks (GANs) has brought about completely novel ways of transforming and manipulating pixels in digital images.

Hybrid LSTM and Encoder-Decoder Architecture for Detection of Image Forgeries

1 code implementation6 Mar 2019 Jawadul H. Bappy, Cody Simons, Lakshmanan Nataraj, B. S. Manjunath, Amit K. Roy-Chowdhury

This paper proposes a high-confidence manipulation localization architecture which utilizes resampling features, Long-Short Term Memory (LSTM) cells, and encoder-decoder network to segment out manipulated regions from non-manipulated ones.

Exploiting Spatial Structure for Localizing Manipulated Image Regions

no code implementations ICCV 2017 Jawadul H. Bappy, Amit K. Roy-Chowdhury, Jason Bunk, Lakshmanan Nataraj, B. S. Manjunath

In order to formulate the framework, we employ a hybrid CNN-LSTM model to capture discriminative features between manipulated and non-manipulated regions.

Image Manipulation Semantic Segmentation

The Impact of Typicality for Informative Representative Selection

no code implementations CVPR 2017 Jawadul H. Bappy, Sujoy Paul, Ertem Tuncel, Amit K. Roy-Chowdhury

In computer vision, selection of the most informative samples from a huge pool of training data in order to learn a good recognition model is an active research problem.

Active Learning Data Compression

Non-Uniform Subset Selection for Active Learning in Structured Data

1 code implementation Computer Vision and Pattern Recognition (CVPR) 2017 Sujoy Paul, Jawadul H. Bappy, Amit Roy-Chowdhury

We construct a graph from the unlabeled data to represent the underlying structure, such that each node represents a data point, and edges represent the inter-relationships between them.

Active Learning Activity Recognition +1

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