In the dynamic landscape of the food industry, optical sorting technology has emerged as a transformative approach, replacing manual hand-picking with high-speed automated systems.
1. The Four Pillars of Sorting
A state-of-the-art sorting system relies on the seamless integration of four phases: feeding, sensor-based examination, real-time data analysis, and physical separation. The primary technical hurdle is the latency barrier: data processing must occur within milliseconds to ensure that the actuator (usually a pneumatic valve) hits the correct target in a high-speed material stream.
2. Sensor Fusion and Deep Learning
Modern advancements are driven by "sensor fusion" — combining visible light (VIS) with Near-Infrared (NIR) or Hyperspectral Imaging (HSI) to detect chemical properties invisible to the human eye. The integration of Convolutional Neural Networks (CNNs) allows these machines to learn from data, identifying intricate defects like fungal infections or mechanical bruises with superior accuracy.
3. Bridging the Gap for Smaller Farms
A major challenge identified in recent research is the need for cost-effective and user-friendly sorting methods. Many advanced systems were traditionally designed only for high-volume industrial processors, leaving small-to-medium scale farms behind.
Karevo Duo85: High-Tech Meets Affordability
The Karevo Duo85 bridges this gap. It utilizes state-of-the-art AI technology to perform real-time quality analysis with 95% accuracy. While it features professional-grade industrial cameras and high-performance computing, it is specifically designed to be affordable for small and medium-scale farms, ensuring that the latest technological advancements are accessible to the broader agricultural community.
Further Reading
Jivani, S., Dubey, V., Bharamal, M., Parmar, C., & Nahar, T. (2024). Advancements and Challenges in Optical Sorting Technology in Real Time: A Review. Marwadi University.
Maier, G., Gruna, R., Längle, T., & Beyerer, J. (2024). A Survey of the State of the Art in Sensor-Based Sorting Technology and Research. IEEE Access, Vol. 12.
Karevo. (2026). Produktdatenblatt und technische Spezifikationen Duo85.
LfL – Bayerische Landesanstalt für Landwirtschaft. (2010). Beurteilung der äußeren Qualität von Speisekartoffeln anhand von Vergleichsfotografien.