Dachun Yang

activity

20242026

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3 papers · 1 filter

cs.IT2026

Stable Image Reconstruction via Two-Parameter Power-Scale Variation Minimization

Ziwei Li, Wengu Chen, Huanmin Ge +2

In this article, we introduce a power-scale variation (PSV $_{a, p}$ ) with two tunable parameters: the sparsity-inducing exponent $p \in (0, 1]$ and the scaling factor $a \in (0, \infty)$ .…

cs.CR2026

Limit Properties at Critical Indices of Linear Canonical Riesz Potentials and Their Applications to Security of Multi-Image Encryption

Zunwei Fu, Dachun Yang, Shuhui Yang

In this article we introduce the linear canonical Riesz potential (for short, LCRP) and give its symbol in terms of linear canonical transforms. Driven by image processing, we esta…

math.FA2026

A Novel Two-Parameter Penalty: Relaxation Degree Analysis and Sparse Signal Recovery

Ziwei Li, Wengu Chen, Huanmin Ge +1

In this article, we introduce a nonconvex two-parameter penalty function $P_{a, p}$ , parameterized by $a \in (0, \infty)$ and $p \in (0, 1]$ , and the relaxation degree RD $_{P}$ for a separa…