Institution profile

Civil Aviation University of China

Academic institutionasia · cn
Official website
Research library14linked papers
Opportunities0open roles
Selected work

Representative Papers

Cross-view geo-localization, Image retrieval, Multiscale geometric modeling, Frequency domain enhancement

Mar 03, 2026

This work addresses the challenges of cross-view geolocalization, including large viewpoint discrepancies, inconsistent textures, and degraded local discriminative cues. To this end, the authors propose the Spatial and Frequency Domain Enhancement network (SFDE), which introduces frequency-domain invariance into this task for the first time. SFDE employs a parallel three-branch architecture to jointly model global semantics, local geometric structures, and frequency-domain statistical properties, enabling multi-granularity consistent representations. By integrating multi-scale geometric modeling with progressive enhancement and coupled constraint optimization within a unified embedding space, the method achieves state-of-the-art or competitive performance across multiple benchmarks, significantly improving retrieval and localization accuracy while maintaining a lightweight and efficient design.

0 citationsRead paper

Multilevel constructions of constant dimension codes based on one-factorization of complete graphs

Oct 30, 2025

This paper addresses the low lower bound on minimum distance in constant-dimension codes (CDCs). To tackle this, we propose a multi-level construction method based on one-factorizations of complete graphs. Our key innovation lies in designing novel skeleton codes via binary vector transformations induced by one-factorizations, and integrating quasi-pendant block structures with optimal Ferrers diagram rank-metric codes to construct CDCs achieving high minimum distance. The approach systematically refines the multi-level construction framework: while fixing the dimension $k = 6$ and minimum distance $d = 8$, it significantly improves the cardinality lower bounds for code lengths $n in [16,19]$, thereby advancing the state-of-the-art lower bounds on $overline{A}_q(n,8,6)$. This work provides both new theoretical insights and practical construction tools for network coding and random linear network coding over finite fields.

0 citationsRead paper
Recent publications

Latest Papers

Cross-view geo-localization, Image retrieval, Multiscale geometric modeling, Frequency domain enhancement

Mar 03, 2026

This work addresses the challenges of cross-view geolocalization, including large viewpoint discrepancies, inconsistent textures, and degraded local discriminative cues. To this end, the authors propose the Spatial and Frequency Domain Enhancement network (SFDE), which introduces frequency-domain invariance into this task for the first time. SFDE employs a parallel three-branch architecture to jointly model global semantics, local geometric structures, and frequency-domain statistical properties, enabling multi-granularity consistent representations. By integrating multi-scale geometric modeling with progressive enhancement and coupled constraint optimization within a unified embedding space, the method achieves state-of-the-art or competitive performance across multiple benchmarks, significantly improving retrieval and localization accuracy while maintaining a lightweight and efficient design.

0 citationsRead paper

Multilevel constructions of constant dimension codes based on one-factorization of complete graphs

Oct 30, 2025

This paper addresses the low lower bound on minimum distance in constant-dimension codes (CDCs). To tackle this, we propose a multi-level construction method based on one-factorizations of complete graphs. Our key innovation lies in designing novel skeleton codes via binary vector transformations induced by one-factorizations, and integrating quasi-pendant block structures with optimal Ferrers diagram rank-metric codes to construct CDCs achieving high minimum distance. The approach systematically refines the multi-level construction framework: while fixing the dimension $k = 6$ and minimum distance $d = 8$, it significantly improves the cardinality lower bounds for code lengths $n in [16,19]$, thereby advancing the state-of-the-art lower bounds on $overline{A}_q(n,8,6)$. This work provides both new theoretical insights and practical construction tools for network coding and random linear network coding over finite fields.

0 citationsRead paper