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Image registration is a key component of various image processing operations which involve the analysis of different image data sets. Automatic image registration domains have witnessed the application of many intelligent methodologies over…

Computer Vision and Pattern Recognition · Computer Science 2014-05-26 P. V. Arun , S. K. Katiyar

Convolutional neural networks have been applied to a wide variety of computer vision tasks. Recent advances in semantic segmentation have enabled their application to medical image segmentation. While most CNNs use two-dimensional kernels,…

Computer Vision and Pattern Recognition · Computer Science 2017-07-26 Baris Kayalibay , Grady Jensen , Patrick van der Smagt

The popularity of Artificial intelligence and machine learning have prompted researchers to use it in the recent researches. The proposed method uses K-Nearest Neighbor (KNN) algorithm for segmentation of medical images, extracting of image…

Image and Video Processing · Electrical Eng. & Systems 2023-03-17 Ayesha Heena , Nagashettappa Biradar , Najmuddin M. Maroof , Surbhi Bhatia , Rashmi Agarwal , Kanta Prasad

Since the BOSS competition, in 2010, most steganalysis approaches use a learning methodology involving two steps: feature extraction, such as the Rich Models (RM), for the image representation, and use of the Ensemble Classifier (EC) for…

Multimedia · Computer Science 2018-01-15 Lionel Pibre , Pasquet Jérôme , Dino Ienco , Marc Chaumont

This paper proposes an improved steganography approach for hiding text messages in lossless RGB images. The objective of this work is to increase the security level and to improve the storage capacity with compression techniques. The…

Cryptography and Security · Computer Science 2013-04-18 Ankit Chaudhary , J. Vasavada , J. L. Raheja , S. Kumar , M. Sharma

Biometrics emerged as a robust solution for security systems. However, given the dissemination of biometric applications, criminals are developing techniques to circumvent them by simulating physical or behavioral traits of legal users…

Computer Vision and Pattern Recognition · Computer Science 2018-10-12 Gustavo Botelho de Souza , João Paulo Papa , Aparecido Nilceu Marana

The aim of this work is to propose an ensemble of descriptors for Melanoma Classification, whose performance has been evaluated on validation and test datasets of the melanoma challenge 2018. The system proposed here achieves a strong…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Loris Nanni , Alessandra Lumini , Stefano Ghidoni

We propose a highly structured neural network architecture for semantic segmentation with an extremely small model size, suitable for low-power embedded and mobile platforms. Specifically, our architecture combines i) a Haar wavelet-based…

Computer Vision and Pattern Recognition · Computer Science 2017-06-19 Michael Tschannen , Lukas Cavigelli , Fabian Mentzer , Thomas Wiatowski , Luca Benini

Convolutional neural networks (CNNs) have received increasing attention over the last few years. They were initially conceived for image categorization, i.e., the problem of assigning a semantic label to an entire input image. In this paper…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Emmanuel Maggiori , Yuliya Tarabalka , Guillaume Charpiat , Pierre Alliez

Recently, an image encryption scheme based on chaotic standard and logistic maps was proposed. This paper studies the security of the scheme and shows that it can be broken with only one chosen-plaintext. Some other security defects of the…

Cryptography and Security · Computer Science 2009-07-07 Chengqing Li , Shujun Li , Kwok-Tung Lo

Convolutional neural networks (CNNs) have obtained remarkable performance via deep architectures. However, these CNNs often achieve poor robustness for image super-resolution (SR) under complex scenes. In this paper, we present a…

Image and Video Processing · Electrical Eng. & Systems 2022-09-27 Chunwei Tian , Yanning Zhang , Wangmeng Zuo , Chia-Wen Lin , David Zhang , Yixuan Yuan

Owing to flexible architectures of deep convolutional neural networks (CNNs), CNNs are successfully used for image denoising. However, they suffer from the following drawbacks: (i) deep network architecture is very difficult to train. (ii)…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Chunwei Tian , Yong Xu , Lunke Fei , Junqian Wang , Jie Wen , Nan Luo

In order to achieve high practical security, Natural Steganography (NS) uses cover images captured at ISO sensitivity $ISO_{1}$ and generates stego images mimicking ISO sensitivity $ISO_{2}>ISO_{1}$. This is achieved by adding a stego…

Multimedia · Computer Science 2020-04-14 Taburet Théo , Bas Patrick , Sawaya Wadih , Jessica Fridrich

Intrinsic Image Decomposition is an open problem of generating the constituents of an image. Generating reflectance and shading from a single image is a challenging task specifically when there is no ground truth. There is a lack of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Harshana Weligampola , Gihan Jayatilaka , Suren Sritharan , Parakrama Ekanayake , Roshan Ragel , Vijitha Herath , Roshan Godaliyadda

Cellular automata (CA) models are widely used to simulate complex systems with emergent behaviors, but identifying hidden parameters that govern their dynamics remains a significant challenge. This study explores the use of Convolutional…

Machine Learning · Computer Science 2025-03-05 Valery Ashu , Zhisong Liu , Heikki Haario , Andreas Rupp

Cryptographic schemes using one-dimensional, three-neighbor cellular automata as a primitive have been put forth since at least 1985. Early results showed good statistical pseudorandomness, and the simplicity of their construction made them…

Cryptography and Security · Computer Science 2013-06-18 Jason Spencer

Whereas traditional cryptography encrypts a secret message into an unintelligible form, steganography conceals that communication is taking place by encoding a secret message into a cover signal. Language is a particularly pragmatic cover…

Computation and Language · Computer Science 2019-09-05 Zachary M. Ziegler , Yuntian Deng , Alexander M. Rush

In this paper, a scheme for the encryption and decryption of colored images by using the Lorenz system and the discrete cosine transform in two dimensions (DCT2) is proposed. Although chaos is random, it has deterministic features that can…

Cryptography and Security · Computer Science 2017-01-12 Mohammed Alsaedi

Deep learning architecture with convolutional neural network (CNN) achieves outstanding success in the field of computer vision. Where U-Net, an encoder-decoder architecture structured by CNN, makes a great breakthrough in biomedical image…

Image and Video Processing · Electrical Eng. & Systems 2023-02-13 Qing Xu , Zhicheng Ma , Na HE , Wenting Duan

Convolutional neural network (CNN)-based image denoising methods typically estimate the noise component contained in a noisy input image and restore a clean image by subtracting the estimated noise from the input. However, previous…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Kaito Imai , Takamichi Miyata