A mistie detection system comprising a baler configured to form bales from crop material. The baler includes a least one baling chamber configured to compress crop material into bales and at least one knotter assembly configured to tie securement lines around the bales. The system additionally includes one or more image sensors mounted to the baler and configured to monitor one or more of the knotter assembly, the securement lines, and the bales. The system further includes a control system configured to receive image data from the image sensors to determine if a mistie event has occurred.