'Linear filtering' presentation slideshows

859 views • 70 slides

Midterm Review

11/06/12. Midterm Review. Computational Photography Derek Hoiem, University of Illinois. Magritte, Homesickness. Major Topics. Linear Filtering How it works Template and Frequency interpretations Image pyramids and their applications

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Fast Bilateral Filtering

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Spatial Filtering

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Noise in Imaging Technology

Noise in Imaging Technology. Two plagues in image acquisition Noise interference Blur (motion, out-of-focus, hazy weather) Difficult to obtain high-quality images as imaging goes Beyond visible spectrum Micro-scale (microscopic imaging) Macro-scale (astronomical imaging). What is Noise?.

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Announcements

Announcements. Kevin Matzen office hours Tuesday 4-5pm, Thursday 2-3pm, Upson 317 TA: Yin Lou Course lab: Upson 317 Card access will be setup soon Course webpage: http://www.cs.cornell.edu/courses/cs4670/2010fa/. Projects. Projects involving programming phones will be group projects

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Image enhancement

Image enhancement. Antti Tuomas Jalava Jaime Garrido Ceca . Overview. Digital subtraction angiography. Dual-energy and energy-subtraction X-ray imaging. Temporal subtraction. Gray-scale transform. Convolution mask operators. High-frequency enhancement. Adaptive contrast enhancement.

1.2k views • 39 slides

Math 3360: Mathematical Imaging

Math 3360: Mathematical Imaging. Lecture 11: Types of noises. Prof. Ronald Lok Ming Lui Department of Mathematics, The Chinese University of Hong Kong. Lecture 1: Introduction to Image Processing Lecture 2: Basic idea of image transformation

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Lecture 1: Images and image filtering

CS4670/5670: Intro to Computer Vision. Noah Snavely. Lecture 1: Images and image filtering. Hybrid Images, Oliva et al., http://cvcl.mit.edu/hybridimage.htm. CS4670: Computer Vision. Noah Snavely. Lecture 1: Images and image filtering.

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Noise Filtering & Edge Detection

Noise Filtering & Edge Detection. Jeremy Wyatt. Filtering. Last time we saw that we could detect edges by calculating the intensity change (gradient) across the image We saw that we could implement this using the idea of filtering. Linear filtering: the algorithm. for i=2:image_height-1

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OpenGL Texture Mapping

OpenGL Texture Mapping. Mohan Sridharan Based on slides created by Edward Angel. Objectives. Introduce OpenGL texture functions and other options. Basic Strategy. Three steps to applying a texture: Specify the texture: Read or generate image. Assign to texture. Enable texturing.

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Image Processing: Linear Filtering

Image Processing: Linear Filtering. Modifikasi dari: Prof. Zhou Wang, Texas Univ., 2006. Linear Filtering. Spatial Domain Linear Filtering Frequency (2D-DFT) Domain Filtering Linear Image Restoration. Image Restoration. Blur. From Prof. Xin Li. out-of-focus blur. motion blur.

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Computer Vision

Computer Vision. Introduction to Image formats, reading and writing images, and image environments Image filtering. Images. Black and white image is a 2D matrix. Intensities represented as pixels. Color images are 3D matrix, RBG. Linear Filtering.

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Computer Vision

Computer Vision. Introduction to Image formats, reading and writing images, and image environments Image filtering. Images. Black and white image is a 2D matrix. Intensities represented as pixels. Color images are 3D matrix, RBG. Linear Filtering.

329 views • 21 slides

Computer Vision

Computer Vision. Introduction to Image formats, reading and writing images, and image environments Image filtering. Images. Black and white image is a 2D matrix. Intensities represented as pixels. Color images are 3D matrix, RBG. Linear Filtering.

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Lecture 3

Lecture 3. Linear filtering based on the DFT Advanced Digital Signal Processing Dr Dennis Deng Department of Electronic Engineering, La Trobe University 1998,1999. Contents. Linear filter and circular convolution Overlap and save method Overlap and add method Self test exercises.

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Digital Image Processing

Digital Image Processing. Lecture12: Basics of Spatial Filtering. Introduction.

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Fast Bilateral Filtering for the Display of High-Dynamic-Range Images

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College of Engineering

College of Engineering. TITLE GOES HERE. Name of the student(s) and the supervisor (s) E-mail(s): students@ku.edu.tr. Engineering Design. Project Description. State the points that are covered in the project.

127 views • 1 slides