Fig. 5: Image recognition using the VO2-based UV neuromorphic sensor system.
From: Photo-induced non-volatile VO2 phase transition for neuromorphic ultraviolet sensors
a Realization of neuromorphic preprocessing function to achieve image noise reduction utilizing the sensor array. The system can be spatially divided into a convolution kernel array part for visual information preprocessing and an ANN part for image recognition. b Three types of pre-prepared images including the original MNIST test images (left columns), specially processed images with R, G and B Gaussian noise (middle columns), and the images after noise reduction by the sensor array (right columns). c Recognition accuracy with and without neuromorphic preprocessing.
