Criminal investigation 3 State-of-the-art methods 2 deep learning 2 image retrieval 2 Alignment 1 Automatic identification 1 Automation 1 CCA fusion 1 Canonical correlation analysis 1 Cascaded feature extraction 1 Chinese universities 1 Correlation methods 1 Criminal law & procedure 1 Cross modality 1 Cross-modality gap 1 Deep learning 1 Discriminative power 1 Extraction 1 Face recognition 1 Facial images 1 Feature alignment 1 Feature extraction 1 Forensic science 1 Forensic sketches 1 Graphic methods 1 Histogram of oriented gradients (HOG) 1 Identity of interest 1 Image matching 1 Image processing 1 Image retrieval 1