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- Gonzalo R. Arce
- Technometrics
- 2004

Description: Nonlinear Signal Processing: A Statistical Approach focuses on unifying the study of a broad and important class of nonlinear signal processing algorithms which emerge from statistical estimation principles, and where the underlying signals are non-Gaussian, rather than Gaussian, processes. Notably, by concentrating on just two non-Gaussian… (More)

- Zhongmin Wang, Gonzalo R. Arce, Giovanni Di Crescenzo
- IEEE Transactions on Information Forensics and…
- 2009

Halftone visual cryptography (HVC) enlarges the area of visual cryptography by the addition of digital halftoning techniques. In particular, in visual secret sharing schemes, a secret image can be encoded into halftone shares taking meaningful visual information. In this paper, HVC construction methods based on error diffusion are proposed. The secret image… (More)

- Zhi Zhou, Gonzalo R. Arce, Giovanni Di Crescenzo
- IEEE Transactions on Image Processing
- 2003

Visual cryptography encodes a secret binary image (SI) into n shares of random binary patterns. If the shares are xeroxed onto transparencies, the secret image can be visually decoded by superimposing a qualified subset of transparencies, but no secret information can be obtained from the superposition of a forbidden subset. The binary patterns of the n… (More)

- Gonzalo R. Arce
- IEEE Trans. Signal Processing
- 1998

Weighted median smoothers, which were introduced by Edgemore in the context of least absolute regression over 100 years ago, have received considerable attention in signal processing during the past two decades. Although weighted median smoothers offer advantages over traditional linear finite impulse response (FIR) filters, it is shown in this paper that… (More)

- Xu Gang Xia, C. Boncelet, Gonzalo R. Arce
- Optics express
- 1998

In this paper, we introduce a new multiresolution watermarking method for digital images. The method is based on the discrete wavelet transform (DWT). Pseudo-random codes are added to the large coefficients at the high and middle frequency bands of the DWT of an image. It is shown that this method is more robust to proposed methods to some common image… (More)

- Liehua Xie, Gonzalo R. Arce
- ICIP
- 1998

A blind watermarking technique embedding a digital image signature for authentication is developed. The signature algorithm is rst implemented in the discrete wavelet transform (DWT) domain and is later coupled within the SPIHT compression algorithm. The capacity of the watermarking method is determined by the upper bound on the attainable information bit… (More)

- Xiang-Gen Xia, Charles G. Boncelet, Gonzalo R. Arce
- ICIP
- 1997

In this paper, we introduce a new multiresolution watermarking method for digital images. The method is based on the discrete wavelet transform (DWT). Pseudo-random codes are added to the large coe cients at the high and middle frequency bands of the DWT of an image. It is shown that this method is more robust to often proposed methods to some common image… (More)

- Gonzalo R. Arce
- IEEE Trans. Signal Processing
- 1991

- Gonzalo R. Arce, Russel E. Foster
- IEEE Trans. Acoustics, Speech, and Signal…
- 1989

- Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
- IEEE Transactions on Audio, Speech, and Language…
- 2010

Motivated by psychophysiological investigations on the human auditory system, a bio-inspired two-dimensional auditory representation of music signals is exploited, that captures the slow temporal modulations. Although each recording is represented by a second-order tensor (i.e., a matrix), a third-order tensor is needed to represent a music corpus.… (More)