Fig. 12From: Auto3DCryoMap: an automated particle alignment approach for 3D cryo-EM density map reconstructionSparse points matching and extraction results. a First tested particle image. b Features (corners) extraction using minimum eigenvalue algorithm [42]. c The second tested particle image. d Correlation points detection and tracking using Kanade-Lucas-Tomasi (KLT), feature-tracking algorithm [43,44,45]Back to article page