7 papers
Hypercomplex Phase Retrieval
Kumar Vijay Mishra, Henry Arguello, Brian M. Sadler
Hypercomplex signal processing (HSP) offers powerful tools for analyzing and processing multidimensional signals by explicitly exploiting inter-dimensional correlations through Cli…
NOWA: Null-space Optical Watermark for Invisible Capture Fingerprinting and Tamper Localization
Edwin Vargas, Jhon Lopez, Henry Arguello +1
Ensuring the authenticity and ownership of digital images is increasingly challenging as modern editing tools enable highly realistic forgeries. Existing image protection systems m…
Structure-Preserving Medical Image Generation from a Latent Graph Representation
Kevin Arias, Edwin Vargas, Kumar Vijay Mishra +2
Supervised learning techniques have proven their efficacy in many applications with abundant data. However, applying these methods to medical imaging is challenging due to the scar…
Single Snapshot Distillation for Phase Coded Mask Design in Phase Retrieval
Karen Fonseca, Leon Suarez-Rodriguez, Andres Jerez +2
Phase retrieval (PR) reconstructs phase information from magnitude measurements, known as coded diffraction patterns (CDPs), whose quality depends on the number of snapshots captur…
BiPer: Binary Neural Networks using a Periodic Function
Edwin Vargas, Claudia Correa, Carlos Hinojosa +1
Quantized neural networks employ reduced precision representations for both weights and activations. This quantization process significantly reduces the memory requirements and com…
Factor Graph Processing for Dual-Blind Deconvolution at ISAC Receiver
Roman Jacome, Edwin Vargas, Kumar Vijay Mishra +2
Integrated sensing and communications (ISAC) systems have gained significant interest because of their ability to jointly and efficiently access, utilize, and manage the scarce ele…
Depth Estimation from a Single Optical Encoded Image using a Learned Colored-Coded Aperture
Jhon Lopez, Edwin Vargas, Henry Arguello
Depth estimation from a single image of a conventional camera is a challenging task since depth cues are lost during the acquisition process. State-of-the-art approaches improve th…