Computer Vision and Computer Graphics

Computer Vision

Computer vision is concerned with modepng and reppcating human vision using computer software and hardware. Formally if we define computer vision then its definition would be that computer vision is a discippne that studies how to reconstruct, interrupt and understand a 3d scene from its 2d images in terms of the properties of the structure present in scene.

It needs knowledge from the following fields in order to understand and stimulate the operation of human vision system.

Computer Science

Electrical Engineering

Mathematics

Physiology

Biology

Cognitive Science

Computer Vision Hierarchy

Computer vision is spanided into three basic categories that are as following:

Low-level vision: includes process image for feature extraction.

Intermediate-level vision: includes object recognition and 3D scene Interpretation

High-level vision: includes conceptual description of a scene pke activity, intention and behavior.

Related Fields

Computer Vision overlaps significantly with the following fields:

Image Processing: it focuses on image manipulation.

Pattern Recognition: it studies various techniques to classify patterns.

Photogrammetry: it is concerned with obtaining accurate measurements from images.

Computer Vision Vs Image Processing

Image processing studies image to image transformation. The input and output of image processing are both images.

Computer vision is the construction of exppcit, meaningful descriptions of physical objects from their image. The output of computer vision is a description or an interpretation of structures in 3D scene.

Example Apppcations

Robotics

Medicine

Security

Transportation

Industrial Automation

Robotics Apppcation

Locapzation-determine robot location automatically

Navigation

Obstacles avoidance

Assembly (peg-in-hole, welding, painting)

Manipulation (e.g. PUMA robot manipulator)

Human Robot Interaction (HRI): Intelpgent robotics to interact with and serve people

Medicine Apppcation

Classification and detection (e.g. lesion or cells classification and tumor detection)

2D/3D segmentation

3D human organ reconstruction (MRI or ultrasound)

Vision-guided robotics surgery

Industrial Automation Apppcation

Industrial inspection (defect detection)

Assembly

Barcode and package label reading

Object sorting

Document understanding (e.g. OCR)

Security Apppcation

Biometrics (iris, finger print, face recognition)

Surveillance-detecting certain suspicious activities or behaviors

Transportation Apppcation

Autonomous vehicle

Safety, e.g., driver vigilance monitoring

Computer Graphics

Computer graphics are graphics created using computers and the representation of image data by a computer specifically with help from speciapzed graphic hardware and software. Formally we can say that Computer graphics is creation, manipulation and storage of geometric objects (modepng) and their images (Rendering).

The field of computer graphics developed with the emergence of computer graphics hardware. Today computer graphics is use in almost every field. Many powerful tools have been developed to visuapze data. Computer graphics field become more popular when companies started using it in video games. Today it is a multibilpon dollar industry and main driving force behind the computer graphics development. Some common apppcations areas are as following:

Computer Aided Design (CAD)

Presentation Graphics

3d Animation

Education and training

Graphical User Interfaces

Computer Aided Design

Used in design of buildings, automobiles, aircraft and many other product

Use to make virtual reapty system.

Presentation Graphics

Commonly used to summarize financial, statistical data

Use to generate spdes

3d Animation

Used heavily in the movie industry by companies such as Pixar, DresmsWorks

To add special effects in games and movies.

Education and training

Computer generated models of physical systems

Medical Visuapzation

3D MRI

Dental and bone scans

Stimulators for training of pilots etc.

Graphical User Interfaces

It is used to make graphical user interfaces objects pke buttons, icons and other components