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Image manipulation detection using contourlet transform
2012 20th Signal Processing and Communications Applications Conference (SIU), 2012In this paper, we use contourlet transform for digital image manipulation detection. We extract contourlet and wavelet features and test these obtained features on a controlled image data set. Results show that contourlet based features gives better success rates than wavelet based ones.
Levent Ozparlak
exaly +4 more sources
Magnetic tile crack defect detection based on Contourlet transform and singular value decomposition
Nondestructive Testing and Evaluation, 2022The magnetic tile is a permanent magnet made of ferrite material, which is shaped like a tile and mainly used in permanent magnet motor. The magnetic tile image taken by camera is with dark colour and uneven background brightness and texture, and the ...
Liang Zheng
exaly +2 more sources
Signal Processing, 2021
Dynamic threshold neural P systems (DTNP systems) are a distributed parallel computing model with an interesting mechanism involving the cooperative spiking of neurons in a local region.
Bo Li, Hong Peng, Jun Wang
semanticscholar +1 more source
Dynamic threshold neural P systems (DTNP systems) are a distributed parallel computing model with an interesting mechanism involving the cooperative spiking of neurons in a local region.
Bo Li, Hong Peng, Jun Wang
semanticscholar +1 more source
International journal of imaging systems and technology (Print), 2023
Medical diagnostics rely heavily on ultrasound imaging since it is non‐invasive, inexpensive, and able to provide images in real time. However, the inherent existence of a kind of signal‐dependent noise in these images diminishes the use of ultrasound ...
Prabhishek Singh, Manoj Diwakar
semanticscholar +1 more source
Medical diagnostics rely heavily on ultrasound imaging since it is non‐invasive, inexpensive, and able to provide images in real time. However, the inherent existence of a kind of signal‐dependent noise in these images diminishes the use of ultrasound ...
Prabhishek Singh, Manoj Diwakar
semanticscholar +1 more source
Multi-focus image fusion based on nonsubsampled contourlet transform and residual removal
Signal Processing, 2021The goal of multi-focus image fusion is to integrate all focus pixels from the source images into the fused result and simultaneously avoid the introduction of defocused pixels.
Xiaosong Li +4 more
semanticscholar +1 more source
Development of control charts to monitor image data using the contourlet transform method
Quality and Reliability Engineering International, 2023In recent years, researchers and practitioners have been exploring new methods for quality control, including image processing. The effective use of high‐volume image data can significantly improve the monitoring of production and service systems in ...
Z. Khodadadi +3 more
semanticscholar +1 more source
IEEE Transactions on Geoscience and Remote Sensing, 2022
Seismic data interpolation and denoising play vital roles in obtaining complete and clean data in seismic data processing. Seismic data usually miss along various spatial axes and always mix with random noise.
Chao Li, Xiaotao Wen, Xingye Liu, S. Zu
semanticscholar +1 more source
Seismic data interpolation and denoising play vital roles in obtaining complete and clean data in seismic data processing. Seismic data usually miss along various spatial axes and always mix with random noise.
Chao Li, Xiaotao Wen, Xingye Liu, S. Zu
semanticscholar +1 more source
Nonsubsampled contourlet transform-based conditional random field for SAR images segmentation
Signal Processing, 2020In this paper, we propose a new texture-based conditional random field (CRF) for Synthetic Aperture Radar (SAR) image segmentation. In our proposed algorithm to overcome the limitations of the intensity-based features, feature extraction is performed in ...
Mohammad Sadegh Helfroush +1 more
exaly +2 more sources
Light Field Image Quality Assessment Using Contourlet Transform
IEEE international Symposium on Broadband Multimedia Systems and Broadcasting, 2021In this paper, a new full-reference image quality assessment (IQA) method for performing perceptual quality evaluation on the light field (LF) image is proposed, called the contourlet transform-based model (CTM).
Hailiang Huang +4 more
semanticscholar +1 more source
Optical nonsubsampled contourlet transform
Applied Optics, 2016The nonsubsampled contourlet transform (NSCT) is a fully shift-invariant, multiscale, and multidirectional expansion implemented in optics using the Fourier transform of its filters. In this paper, we propose a novel optical NSCT filter design method and the corresponding post-processing method to avoid the use of holographic techniques.
Liang, Han +4 more
openaire +2 more sources