'Edge direction' diaporamas de présentation

Introduction

1.55k views • 117 slides

Edge Detection

Edge Detection. CS485/685 Computer Vision Dr. George Bebis. Definition of Edges. Edges are significant local changes of intensity in an image. surface normal discontinuity. depth discontinuity. color discontinuity. illumination discontinuity. What Causes Intensity Changes?.

1.17k views • 97 slides

Edge Detection

Edge Detection. CS485/685 Computer Vision Dr. George Bebis. Definition of Edges. Edges are significant local changes of intensity in an image. surface normal discontinuity. depth discontinuity. color discontinuity. illumination discontinuity. What Causes Intensity Changes?.

1.09k views • 97 slides

Summary of Friday

Summary of Friday. A homography transforms one 3d plane to another 3d plane, under perspective projections. Those planes can be camera imaging planes or planes in the scene.

929 views • 78 slides

Expression Modules

593 views • 53 slides

Expression Modules

599 views • 53 slides

Digital Image Processing CSC331

Digital Image Processing CSC331. Image Enhancement. Summery of previous lecture. Sharpening 1st and 2nd order derivatives Laplacian filter Unsharp masking and high-boost filtering. Todays lecture. First order derivatives using the gradient operator

489 views • 48 slides

Sliding Window Filters and Edge Detection

489 views • 37 slides

Sliding Window Filters and Edge Detection

406 views • 37 slides

Sliding Window Filters and Edge Detection

384 views • 36 slides

Image Segmentation

Image Segmentation. Image analysis: Extracting information from an image. First step: To segment the image i.e. to subdivide an image into its constituent regions or objects. Image Segmentation. Segmentation is based on two basic properties of gray-level values:

858 views • 31 slides

Content-based Video Indexing, Classification & Retrieval

615 views • 26 slides

Lecture 7

435 views • 25 slides

Camouflage Detection

Camouflage Detection. An introduction Presented by: Ani Starrenburg. General Camouflaging Strategies. Cryptic Camouflage. Little Button Quail. Traditional US Army Camouflage Pattern. General Camouflaging Strategies. Mimicry. Rose Greenbow, Confederate Spy. Dronefly.

521 views • 21 slides

Canny Edge Detector

Canny Edge Detector. The Skeleton of the Canny Edge Detector. Smooth the Image with Gaussian Filter Compute the Gr a dient Magnitude and Orientation using finite-difference approximations for the partial derivatives, Apply nonmaxima suppression to the gr a dient magnitude,

303 views • 10 slides