数字图像处理与应用 Class 1.
Lecture 1 Introduction & Fundamentals
“One picture is worth more than ten thousand words” ---Anonymous
Seeing is believing. ---Chinese Idioms
Computer vision
Graphics 图形学
Content-based image retrieval 基于内容的图像检索
Biometric 生物识别
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What is a Image?
The description of a digital image, when x, y and the amplitude values of f are:
finite 有限
discrete quantities 离散
Each of element having a particular location and values, these elements are called: Pixels
What is a Digital Image?
Digital image is referring to the image which is stored in digital format.
Digitization implies that a digital image is an approximation of a real scene
Common image formats include:
1 sample per point (B&W or Grayscale)
3 samples per point (Red, Green, and Blue)
4 samples per point (Red, Green, Blue, and “Alpha(透明度)”, a.k.a.(also known as) Opacity)
What is Digital Image Processing?
Processing digital images by means of a digital computer
Two major tasks： 图像质量提升—人、图像数据处理-机器。
Human Visual System
Structure of the Human Eye
Light and the Electromagnetic Spectrum
Application
Magnetic Resonance Imaging 磁共振成像
Radar Imaging 雷达成像
Thermal Imaging 热成像
Near Infrared Imaging
Visible Imaging 可见光成像
Fluorescence Microscopy Imaging 荧光显微成像
X-ray Imaging
Positron Emission Tomography 正电子成象术
Some Structures and Basic Knowledge
Image Acquisition
Imaging Sensors
Single Sensor Imaging
Sensor Strip Imaging
Sensor Array Imaging
Image Sampling and Quantization
Representation
Spatial & Intensity Level Resolution 空间和强度水平分辨率
Zooming and Shrinking Digital Images 放大和缩小数字图像
Basic Relationships Between Pixels
Connectivity 连通性
Adjacency 邻接
Path
Connected Set and Region
Distance Measures
Common Distance Definitions
Key Stages in Digital Image Processing
Image Acquisition、Image Enhancement、Image Restoration 图像修复、Morphological Processing 形态学处理、Segmentation、Object Recognition、Representation & Description、Image Compression、Colour Image Processing。