Questions tagged [computer-graphics]

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What is the historical origin of the concept of a “clipping path”

Algorithms for clipping lines to a rectangle seem to have been invented by Ivan Sutherland in the late 60s. At some point the rectangle was generalized to an arbitrary polygonal area, and these days ...
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1answer
66 views

Ray tracing tree

Let's suppose that we have a light source. Which of the following are correct for the tree of recursive ray-tracing (ray tree) that create when we make the colors for each pixel in the screen. Which ...
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1answer
132 views

Determining the intersections of a line segment and grid

Problem: Given a line segment on the cartesian plane, determine where and which order it intersects a regular grid. This sounds simple, but is actually quite a tough problem. It's related to, but ...
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9 views

How to extract the buildings bottom surfaces from a large city 3D mesh?

I have a 3D mesh comprised of city buildings, no ground surface, just buildings. The goal is to extract the buildings bottom surfaces. So far I have tried to cut the mesh by a threshold computed from ...
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30 views

What is the difference between DeepFake and First Order Motion?

What is the difference between DeepFake and First Order Motion? Is it the same or not?
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1answer
72 views

Bresenham's line drawing algorithm guarantees

I am considering implementing my own version of Bresenham's line drawing algorithm, found here, my one question is does the algorithm guarantee that both endpoints will be covered/drawn. I am doubting ...
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2answers
101 views

How is CPU different from GPU?

A central processing unit offers to handle various operations like calculating, watching movies, making presentation etc. While a graphics processing unit is majorly used for the purpose of video ...
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48 views

Jaccard decay, Jaccard recall, and class-agnostic binary segmentation

When reading about SiamMask (Wang et al., Fast Online Object Tracking and Segmentation: A Unifying Approach), I encountered the terms "Jaccard decay" and "Jaccard recall". I know what Jaccard index ...