Practical Descattering of Transmissive Inspection Using Slanted Linear Image Sensors

Takahiro Kushida, Kenichiro Tanaka, Takuya Funatomi, Komei Tahara, Yukihiro Kagawa, Yasuhiro Mukaigawa

Abstract: This paper presents an industry-ready descattering method that is easily applied to a food production line. The system consists of multiple sets comprising a linear image sensor and linear light source, which are slanted at different angles. The images captured by these sensors, which are partially clear along the perpendicular direction to the sensor, are computationally integrated into a single clear image over the frequency domain. We assess the effectiveness of the proposed method by simulation and by our prototype system, which demonstrates the feasibility of the proposed method on an actual production line.