Image processing is a method to perform some operations on an image, in order to get an enhanced image or to extract some useful information from it. Image processing is now routinely used by a wide range of individuals who have access to digital cameras and computers.
Video processing :
The main application of digital video processing is to provide high-quality visible-light videos for human consumption.Video processing is the study of algorithms for processing moving images that are represented in digital format.

Sensor network is a set of sensors allowing to monitor an industrial process on site. All the quantities in a certain process can be determined either by direct measurements using sensors or by equations that link them to other known variables. Sensor networks are a subset of mesh networks.

Speech processing is the study of speech signals and the processing methods of signals. The signals are usually processed in a digital representation, so speech processing can be regarded as a special case of digital signal processing, applied to speech signals

A security protocol (cryptographic protocol or encryption protocol) is an abstract or concrete protocol that performs a security-related function and applies cryptographic methods, often as sequences of cryptographic primitives. A protocol describes how the algorithms should be used.

Data mining processes are used to build machine learning models that power applications including search engine technology and website recommendation programs. Data mining is a process used by companies to turn raw data into useful information.

 Communication system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole. Communication means to share or exchange information, views, thoughts via different medium, wireless communication and wireline communication.

Natural language processing (NLP) is a subfield of linguistics, computer science, information engineering, and artificial intelligence concerned with the interactions between computers and human (natural) languages, in particular how to program computers to process and analyze large amounts of natural language data.

Facial Recognition system is a technology capable of identifying or verifying a person from a digital image or a video frame from a video source. There are multiple methods in which facial recognition systems work, but in general, they work by comparing selected facial features from given image with faces within a database. 

Deep Learning is a machine learning technique that teaches a computer to filter inputs (observations in the form of images, text or sound) through layers in order to learn how to predict and classify information. Deep Learning is inspired by the way that the human brain filters information.