Publications

2027

1. ISCTech

   Multivariate Gaussian-Based No-Reference Quality Assessment for Spatial Distortion in Pansharpened Images

   Bishr O.A. Adam, Xu Li, Y. Wang, and 1 more author

   In Proceedings of the 13th International Conference on Information Systems and Computing Technology (ISCTech 2025), 2027

   Best Paper DOI Bib HTML

   Best Paper Award

   @inproceedings{adam2025isctech,
     title = {Multivariate Gaussian-Based No-Reference Quality Assessment for Spatial Distortion in Pansharpened Images},
     author = {Adam, Bishr O.A. and Li, Xu and Wang, Y. and Yang, X.},
     booktitle = {Proceedings of the 13th International Conference on Information Systems and Computing Technology (ISCTech 2025)},
     series = {Lecture Notes in Networks and Systems},
     volume = {1715},
     publisher = {Springer},
     address = {Singapore},
     year = {2027},
     doi = {10.1007/978-981-95-4448-6_21},
   }

2026

1. SPIC

   Parameter-Efficient Adaptation of a Multi-Stream Vision-Language Framework for Blind Image Quality Assessment

   Bishr O. Adam and Xu Li

   Signal Processing: Image Communication, 2026

   Under review

   Abs arXiv Bib Code

   Blind image quality assessment (BIQA) increasingly relies on frozen vision-language model (VLM) embeddings, which are efficient but leave open how much accuracy is sacrificed without backbone adaptation and when such adaptation helps. We develop an efficient BIQA framework that fuses a 138-dimensional NSS descriptor with frozen SigLIP and CLIP-H embeddings through a lightweight regression head, and adapt its SigLIP stream with parameter-efficient Low-Rank Adaptation (LoRA), training only 0.23% of its parameters. Evaluating both frozen and adapted models across six datasets under image-level and reference-level protocols, we show that image-level splitting inflates frozen-feature SROCC by up to 0.44 and masks wide variation in true difficulty that only reference-level evaluation reveals. Adaptation recovers performance in proportion to this difficulty, with the largest gains where frozen features generalize poorly (up to +0.328 SROCC on TID2013).

   @article{adam2026peft,
     title = {Parameter-Efficient Adaptation of a Multi-Stream Vision-Language Framework for Blind Image Quality Assessment},
     author = {Adam, Bishr O. and Li, Xu},
     journal = {Signal Processing: Image Communication},
     publisher = {Elsevier},
     year = {2026},
     note = {Under review},
   }

2. Sensors

   A No-Reference Multivariate Gaussian-Based Spectral Distortion Index for Pansharpened Images

   Bishr O.A. Adam, Xu Li, J. Wu, and 1 more author

   Sensors, 2026

   DOI Bib HTML

   @article{adam2026sensors,
     title = {A No-Reference Multivariate Gaussian-Based Spectral Distortion Index for Pansharpened Images},
     author = {Adam, Bishr O.A. and Li, Xu and Wu, J. and Hao, X.},
     journal = {Sensors},
     volume = {26},
     number = {1002},
     year = {2026},
     publisher = {MDPI},
     doi = {10.3390/s26031002},
   }