Background subtraction is a technique used to identify and remove the background from a video sequence, allowing for the detection and tracking of moving objects.

Image enhancement aims to improve the quality of images captured by surveillance cameras, including noise reduction, edge sharpening, and color correction, to enhance visibility and facilitate analysis.

Local Binary Patterns (LBP) is a widely used technique for facial recognition in security systems due to its robustness to illumination changes and facial expressions.

Image registration is used to align multiple images of the same scene taken from different viewpoints or at different times, enabling the creation of a comprehensive view of the scene.

Convolutional Neural Networks (CNNs) are widely used for object detection and classification in security systems due to their ability to learn hierarchical features from images.

Image compression is used to reduce the size of image files without significantly compromising their quality, enabling efficient storage and transmission of surveillance data.

Optical Character Recognition (OCR) is used to extract and recognize characters from license plates in security systems, enabling automated vehicle identification.

Image segmentation is used to divide an image into regions with similar characteristics, such as color, texture, or motion, facilitating object detection and tracking.

Crowd analysis in surveillance systems involves a combination of object detection, image segmentation, and motion analysis to track and analyze the behavior of individuals within a crowd.

Image fusion is used to combine information from multiple images captured from different sensors or viewpoints, resulting in a more comprehensive and accurate representation of the scene.

Anomaly detection in surveillance systems involves a combination of background subtraction, change detection, and motion analysis to identify events or objects that deviate from normal patterns.

Image super-resolution is used to enhance the resolution of low-resolution images captured by surveillance cameras, improving the quality and detail of the images.

Event detection and classification in surveillance systems involve a combination of motion analysis, object tracking, and activity recognition to identify and categorize events of interest.

Image de-identification is used to protect the privacy of individuals by obscuring or removing sensitive information from images, such as faces or license plates.

Biometric identification in security systems involves a combination of facial recognition, iris recognition, and fingerprint recognition to verify the identity of individuals.