'Scan line' diaporamas de présentation

Shading

Shading. Ming Ouhyoung ??? Professor Dept. of CSIE and GINM NTU. Illumination model. Ambient light ( ?? ) I = la * ka * Obj (r, g, b) la : intensity of ambient light ka : 0.0 ~ 1.0, Obj (r, g, b): object color Diffuse reflection ( ?? )

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Hidden Surfaces

Hidden Surfaces. Chapter 10. Hidden Lines. Hidden Lines Removed. Hidden Surfaces Removed. Why?. We must determine what is visible within a scene from a chosen viewing position For 3D worlds this is known as visible surface detection or hidden surface elimination. Hidden Surface Removal.

1.28k views • 72 slides

Scan Conversion of Polygons

Scan Conversion of Polygons. Dr. Scott Schaefer. Drawing Rectangles. Which pixels should be filled?. Drawing Rectangles. Is this correct?. Drawing Rectangles. What if two rectangles overlap?. Drawing Rectangles. Is this correct?. Drawing Rectangles. Overlap!!!. Is this correct?.

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Chap 4-2. Frequency domain processing

Chap 4-2. Frequency domain processing. Jen-Chang Liu, 2006. Extend to 2-D DFT from 1-D. 2-D DFT: 1-D DFT in horizontal then vertical. Complex Quantities to Real Quantities. Useful representation. magnitude. phase. Power spectrum. ????. ?????. (u, v) ????. DFT. Real part.

826 views • 51 slides

Rasterizing Polygons

Rasterizing Polygons. Lecture 29 Wed, Dec 7, 2005. Rasterizing Polygons. Given a the vertices of a polygon, in viewport coordinates, which pixels should be shaded? How do we determine them efficiently?. Rasterizing Polygons. Rasterizing Polygons.

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Graphics Hardware

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Advanced Features of Screen Processing

Advanced Features of Screen Processing. Suthida Chaichomchuen std@kmitnb.ac.th. BIOS INT 10H. 00H : Set video mode 01H : Set cursor size 02H : Set cursor position 03H : Read cursor position 04H : Read light pen position 05H : Select active page 06H : Scroll up screen

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Foundations of Computer Graphics (Fall 2012)

Foundations of Computer Graphics (Fall 2012). http://inst.eecs.berkeley.edu/~cs184. CS 184, Lecture 23: Texture Mapping. Many slides from Greg Humphreys, UVA and Rosalee Wolfe, DePaul tutorial teaching texture mapping visually Chapter 11 in text book covers some portions . To Do.

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NOAA-18 AMSU-A And MHS CALIBRATION Overview

NOAA-18 AMSU-A And MHS CALIBRATION Overview. Tsan Mo NOAA/NESDIS/ORA Sensor Physics Branch ORA NOAA-18 Cal/Val Working Group Meeting August 9, 2005. OUTLINE. ? Monitor and improve NOAA-18 AMSU-A /MHS post-launch calibration

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ECE160 / CMPS182 Multimedia

ECE160 / CMPS182 Multimedia. Lecture 5: Spring 2009 Concepts in Video. Types of Video Signals Component video. Component video : Higher-end video systems make use of three separate video signals for the red, green, and blue image planes. Each color channel is sent as a separate video signal.

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CGMB214: Intro. To Computer Graphics

CGMB214: Intro. To Computer Graphics. Chapter 2 Overview of Graphics System Part I. Image from http://www.desktopwallpapers.in. What you need to know. Understand and explain the basic feature of graphic hardware components Understand and explain the operations of a video display device.

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Visualisation of head.txt

Visualisation of head.txt. Data capture. Data for the head figure was captured by a laser scanner. The object is mounted on a turntable, and illuminated by a laser stripe

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The Rasterization Problem: Idealized Primitives Map to Discrete Display Space

The Rasterization Problem: Idealized Primitives Map to Discrete Display Space. Solution Involves Selection of Discrete Representation Values. Scan Converting Lines: Characterizing the Problem. ideal line. i.e. for each x, choose y. i.e. for each y, choose x.

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CS 248 Assignment 2 Polygon Scan Conversion

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IMAGE ARTIFACTS

IMAGE ARTIFACTS. What is an ARTIFACT. Any irregularity on an image that is not caused by the proper shadowing of tissue by the primary beam. an undesirable optical density on radiograph. How are they produced?. Exposure Processing Handling & Storage. ARTIFACT FROM EXPOSURE.

1.43k views • 20 slides

Dr. Doaa Hegazy

Computer Graphics- SCC 342 Chapter 4 : Graphics Output Primitives. Dr. Doaa Hegazy. 2D Graphics Primitives Graphics drawing is based on basic geometric structures called graphics primitives Points Lines Circles Conic Sections. 4.1 Coordinate Reference Frames.

454 views • 20 slides

Remote sensing in meteorology

Remote sensing in meteorology. Multispectral scanning and thermal imaging of satellite Murat ilhan 110020216. Multispectral Scanning .

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Number and Spatial Distribution of IP3 Receptors Underlying Calcium Puffs

Number and Spatial Distribution of IP3 Receptors Underlying Calcium Puffs. Jianwei Shuai , Sheila L. Dargan, Heather J. Rose and Ian Parker Department of Neurobiology and Behavior University of California, Irvine NIH Grant. Long Beach, Feb. 14, 2005.

191 views • 12 slides

Fill Algorithms

Fill Algorithms. Soon Tee Teoh CS 116B. Fill Algorithms. Given the edges defining a polygon, and a color for the polygon, we need to fill all the pixels inside the polygon. Three different algorithms: 1. Scan-line fill 2. Boundary fill 3. Flood fill. Scan Line Fill Algorithm.

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FAX and TIFF

FAX and TIFF. Modified Huffman coding is used in fax machines. TIFF also uses this technique. It combines the variable length codes of Huffman coding with the coding of repetitive data in run length encoding. FAXes. Faxes have only white bits and black bits.

436 views • 8 slides