The 12th International Conference on Signal and Image Processing (SIPRO 2026) serves as a premier global forum for researchers, practitioners, and industry experts to present the latest innovations, research findings, and emerging trends in the rapidly evolving fields of signal processing, image processing, computer vision, and pattern recognition. As digital signals and visual data continue to shape the future of technology from intelligent sensing systems and autonomous platforms to biomedical imaging and generative AI, SIPRO 2026 provides a vital platform for advancing both foundational theory and real world applications.