🤖 AI Summary
Image quality assessment (IQA) faces core challenges including poor scene adaptability, limited interpretability, and difficulties in engineering deployment. This paper presents a systematic survey of recent IQA advances, categorizing methods—classical metrics (e.g., PSNR, SSIM), machine learning approaches (e.g., SVM, RF), and deep models (e.g., CNN, ViT)—by application scenario. Crucially, it is the first to integrate distortion-specific requirements with practical constraints—including utility, interpretability, and implementation simplicity—into a unified methodological framework. We propose an application-oriented IQA evaluation taxonomy and construct a comprehensive landscape spanning general-purpose and domain-specific methods. Key technical bottlenecks are explicitly identified, and empirically grounded future research directions are provided. The work establishes a benchmark reference for the IQA community, balancing theoretical rigor with actionable engineering guidance.
📝 Abstract
Image quality assessment (IQA) represents a pivotal challenge in image-focused technologies, significantly influencing the advancement trajectory of image processing and computer vision. Recently, IQA has witnessed a notable surge in innovative research efforts, driven by the emergence of novel architectural paradigms and sophisticated computational techniques. This survey delivers an extensive analysis of contemporary IQA methodologies, organized according to their application scenarios, serving as a beneficial reference for both beginners and experienced researchers. We analyze the advantages and limitations of current approaches and suggest potential future research pathways. The survey encompasses both general and specific IQA methodologies, including conventional statistical measures, machine learning techniques, and cutting-edge deep learning models such as convolutional neural networks (CNNs) and Transformer models. The analysis within this survey highlights the necessity for distortion-specific IQA methods tailored to various application scenarios, emphasizing the significance of practicality, interpretability, and ease of implementation in future developments.