arXiv Open Access 2026

A Single-Parameter Factor-Graph Image Prior

Tianyang Wang Ender Konukoglu Hans-Andrea Loeliger

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Abstrak

We propose a novel piecewise smooth image model with piecewise constant local parameters that are automatically adapted to each image. Technically, the model is formulated in terms of factor graphs with NUP (normal with unknown parameters) priors, and the pertinent computations amount to iterations of conjugate-gradient steps and Gaussian message passing. The proposed model and algorithms are demonstrated with applications to denoising and contrast enhancement.

Topik & Kata Kunci

eess.IV cs.CV eess.SP

Penulis (3)

Tianyang Wang

Ender Konukoglu

Hans-Andrea Loeliger

Format Sitasi

APA MLA BibTeX

Wang, T., Konukoglu, E., Loeliger, H. (2026). A Single-Parameter Factor-Graph Image Prior. https://arxiv.org/abs/2601.08749

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Informasi Jurnal

Tahun Terbit: 2026
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓