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自动生成素描绘画

Automatic Creation of Sketch Tutorials | Two Minute Papers

亲爱的学霸们大家好 这里是 Károly Zsolnai-Fehér 带来的两分钟论文
Dear Fellow Scholars, this is Two Minute Papers with Károly Zsolnai-Fehér.
试想有一种技术 给它输入物体的三维数字模型
Have a look at this magnificent idea: the input is a digital 3D model of an object and
再选择一个视角 它可以输出画出这个物体
a viewpoint of our choice, and the output is an easy to follow, step by step breakdown
的详细步骤
on how to draw it.
全自动绘画教程哦
Automated drawing tutorials!
要是我小时候有这样的技术就好了
I wish tools like this were available back when I was a child!
太棒了
Awesome!
这种技术可以给出画作的线条框架 有助于
This technique offers a way to create the scaffoldings to help achieving the correct
确定三维模型中各个元素的正确视角和摆放 这对于新手画家
perspective and positioning for the individual elements of the 3D model, something that novice
往往不容易
artists often struggle with.
该技术颇具挑战性 因为画出一幅画的方法有很多
This problem is particularly challenging, because we have a bunch of competing solutions
我们需要决定向用户呈现哪种方法
and we have to decide which one should be presented to the user.
为此 我们需要用数学语言来描述某个绘制方法的
To achieve this, we have to include a sound mathematical description of how easy a drawing
难易度
process is.
该算法还要对输入模型的某些部分做微调
The algorithm also makes adjustments to the individual parts of the model to make them
使其既容易画出 又不对形状造成严重扭曲
easier to draw without introducing severe distortions to the shapes.
算法使用了图论以找出绘画步骤的合适顺序
The proposed technique uses graph theory to find a suitable ordering of the drawing steps.
除了技术理论上的问题 还有些实际使用上的问题需要考虑
Beyond the scientific parts, there are a lot of usability issues to be taken into consideration:
例如 算法应该能够告知用户某条辅助线已经不再使用
for instance, the algorithm should notify the user when a given guide is not to be used
可以擦掉了
anymore and can be safely erased.
新手 学过画画的人 和老手都要分别处理
Novice, apprentice, and adept users are also to be handled differently.
为证明给出的步骤有效 论文作者进行了用户调查
To show the validity of this solution, the authors made a user study where they tested
他们将该新算法与常见的已有算法对比 发现用户
this new tutorial type against the most common existing solution, and found that the users
不仅在新算法下能画出更准确的图 而且也更
were not only able to create more accurate drawings with it, but they were also enjoying
享受画画的过程
the process more.
对于作者考虑到绘画过程的体验这点 我感到赞叹
I commend the authors for taking into consideration the overall experience of the drawing process,
这很重要 如果用户享受画画过程
which is an incredibly important factor – if the user enjoyed the process, he’ll surely
他们就会经常用我们的算法画画 我们就能学习到更多数据
come back for more, and of course, the more we show up, the more we learn.
作者把一些绘画步骤放在了他们网站上 我把网址放在了
Some of these tutorials are available on the website of the authors, as always, I’ve linked
视频介绍里
it in the video description.
如果你想画画 一定要去试试这个
If you are in the mood to draw, make sure to give it a go and let us know how it went
再回来给我们评论
in the comments section!
我都想去试试了
Hell, even I am now in the mood to give this a try!
如果找不到我 你知道我去干嘛了
If I disappear for a while, you know where I am.
感谢收看和支持 我们下次再见
Thanks for watching and for your generous support, and I’ll see you next time!

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视频概述

论文网址:http://geometry.cs.ucl.ac.uk/projects/2017/how2sketch/

听录译者

收集自网络

翻译译者

HX

审核员

知易行难

视频来源

https://www.youtube.com/watch?v=brs1qCDzRdk

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