A 44.3-mW 62.4-fps Hyperspectral Image Processor for Spectral Unmixing in MAV Remote Sensing

• Published in: IEEE journal of solid-state circuits Vol. 60; no. 5; pp. 1818 - 1829
• Main Authors: Lo, Yu-Chen, Wu, Yi-Chung, Yang, Chia-Hsiang
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2025; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Abundance; CMOS integrated circuits; domain-specific processor; Eigenvalues and eigenfunctions; Energy efficiency; energy-efficient architecture; Estimation; Graphics processing units; Hyperspectral imaging; Image processing systems; Image processors; Indexes; Micro air vehicles (MAV); Microprocessors; Power management; Real time; Real-time systems; Remote sensing; Sparsity; spectral unmixing; Throughput; Workflow

This article presents the first dedicated processor designed to support the complete spectral unmixing workflow for hyperspectral image (HSI) processing, including rank reduction, endmember extraction, and abundance estimation. The design employs architecture explorations, including folding and data...