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Lightning Talk の舞台裏:Camera de Mouse

こんにちは、井上です。 こちらのデモをご覧になられた方いらっしゃいますか? 画像出典: 西垣様「Arduino-MATLAB によるセンサ情報の获得」の発表資料より掲載 光学式マウス内の低画素カメラをハックし、画像スキャナとして応用してしまっています。なんでそんなことを・・という感じが大好きです。   Mouse de Camera 動作画面(西垣様ご供给) こちらは MATLAB Expo 2019 Japan で「一番盛り上がっていた」と評判の Lightning Talk にて、西垣森緒様(コニカミノルタ株式会社)に発表いただいたものですが、用紙に書かれた文字がモニターに映されるごとに歓声が上がっていました。 この度、このデモのメイキングを西垣様が記事に纏めてくださいましたのでご紹介します。 188bet开户 Support Package for Arduino編 Camera de Mouse編 188bet开户 Support Package for Arduinoを使って、スタンドアロンでArduinoを動かす办法から始まり、マウスの光学センサをハックする内容まで、詳細で盛りだくさんです。関連するファイルや188bet开户 モデルも File Exchange で公開してくださっておりますので、興味のある方は对错参阅にしてください。 実は西垣様、Lightning Talk への登壇は今回が2回目。前回はモーションセンサを用いたデモで会場を沸かせておりました。  モーションセンサデモ動作画面(西垣様ご供给) 加速度センサとジャイロセンサを組み合わせ、実模型と画面内の3Dモデルを連動させています。 毎回デモの見せ方が上手だなぁ・・と職業柄プレゼンをすることが多いので、私も大変影响をうけました。 こちらも詳細は おまけ:2018年のLightning Talk で説明していただいておりますのでご覧ください。 西垣様、ご発表頂きありがとうございました! 皆様も、「私もこんなことやってみたよ!」など发表の場を待っているネタがございましたらご連絡お待ちしております。 对错紹介させてください。...

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MATLAB ユーザーコミュニティー

2019-06-26 10:00:06

Bohemian Matrices in the MATLAB® Gallery

We will have a two-part minisymposium on "Bohemian Matrices" at ICIAM2019, the International Congress on Industrial and Applied Mathematics in Valencia, Spain, July 15-19. This is an outline of my talk.ContentsWhy "Bohemian"The MATLAB Gallerygallery5triwmolerkahanrosserparterpascalgrcargallery5Why "Bohemian"The colorful name "Bohemian Matrices" is the responsibility of Rob Corless and Steven Thornton of the University of Western Ontario. Quoting the web site. When...

标签: Eigenvalues, History, Matrices, Numerical Analysis, People, Uncategorized

Cleve’s Corner: Cleve Moler on Mathematics and Computing

2019-06-24 20:30:54

Explainable AI

Early in June, I was fortunate to be invited to MathWorks Research Summit for a deep learning discussion, led by Heather Gorr (https://github.com/hgorr) on “Explainable AI” with a diverse group consisting of researchers, practitioners, and various industry experts. I would like to recap some of the discussions and provide a place to keep the conversation going with a larger...

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Deep Learning

2019-06-20 14:42:47

From Hologram to Reality, 3D Printing with Light

Today’s post is from guest blogger, Nicole Mosher. Nicole works on the technical articles team and sees many cutting-edge research projects in her role. This week, she’s sharing one of her recent favorites. 3D printing is a relatively new technology that has captured users' interest. The process is simple but can be time-consuming; it requires layering filaments upon each other...

标签: Uncategorized

Behind the Headlines

2019-06-20 11:59:57

Students aiming for SAE Level 4 Autonomy by 2020 AutoDrive Challenge™

This post is the first of a loose series in the racing lounge blog featuring highlights of the AutoDrive Challenge™, especially those around modeling and simulation. Figure: Panoramic photo of all teams and partners at AutoDrive Challenge™ Year 2 finals, MCity (Source: SAE's CDS Photography Portal) AutoDrive Challenge™ As you might not yet be aware of the AutoDrive Challenge™,...

标签: Automated driving, Automotive, Code Generation, Education, Simulink, Skills, Team achievements

Racing Lounge

2019-06-19 16:05:44

Beach Math Reading

There you are, sprawled on a poolside lounge chair in the afternoon heat as reggae music drifts by. Gentle splashing sounds mingle with the hum of the hot tub. A frozen margarita rests within easy reach of your dangling arm. From this languor, one clear thought forms: MATH READING. You need a stack of math books to keep you company!...

标签: Uncategorized

MATLAB Community

2019-06-19 12:12:15

My Web Scraping App: Adding a Single-Match Pattern

Now I want to add a second regex pattern that will only match once per page and display what it finds in the results. This would let me, for example, extract the language of each page and display it next to a list of all the links on a page (which I actually need to do). Features covered in this...

标签: App Designer, Code-Along, Format: Video

Stuart’s MATLAB Videos

2019-06-18 15:55:39

pixelgrid

ContentsIntroductionFind the image objectGet the spatial coordinates for drawing the outlineConstruct the x- and y-vectorsDraw the linesIntroductionSome years ago, I blogged about how to overlay a pixel grid on an image, so that you could clearly see pixel boundaries on a zoomed-in view of the image. Something like this: I intended to submit the code to the File Exchange, but...

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Steve on Image Processing and MATLAB

2019-06-13 12:14:31

File Exchange はツールの宝庫

こんにちは、道家です。今天は File Exchange の紹介。 皆さん、このブログを読まれているという事は MATLAB Central はご存知という事かと思いますが、そこに File Exchange というファイル共有サイトが存在する事ご存知ですか。 File Exchange はユーザーの皆さんが作成された MATLAB プログラムや188bet开户 モデルを手軽に共有できるサイトです。数行の小さいプログラムもあれば、Toolbox のような規模のアプリケーションもあります。コメントや評価を付けたり、キーワードで検索することもできるので、3万以上のエントリーの中からご本身が求めているプログラムをお探しできます。多半のエントリーは英語ですが、重要なのはすべて共通言語(MATLAB)で書かれていることです!私は MATLAB を使い始めたころ File Exchange からのプログラムを見ていろいろと勉強していました。 MathWorks の社員も多少は投稿していますが、殆どがコミュニティーからのコードです。 初めての方は、对错興味あるキーワードで検索し、ダウンロードしてみて下さい!コメントはこちら。...

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MATLAB ユーザーコミュニティー

2019-06-12 10:00:38

AIS Decoder

Idin's pick this week is AIS Decoder by our former colleague Mike Donovan. This example shows how to decode automatic identification system (AIS) signals sent out by commercial ships. The AIS standard was developed in the late 1990s and early 2000s. It is widely in use today for larger ships. See here for details. https://en.wikipedia.org/wiki/Automatic_identification_system Why...

标签: Picks

File Exchange Pick of the Week

2019-06-10 12:52:56

大盛況! コミュニティイベント@MATLAB EXPO 2019

2019年5月28日に開催された MATLAB EXPO 2019 Japan でのコミュニティイベントの様子をご紹介します。 MATLAB EXPO は年に1回のユーザーカンファレンスです。 年々参加者が増える中、MATLAB ユーザーが主体となって発信や沟通をする場として盛り上げようと本年もコミュニティイベントを実施しました。 本記事ではポスター発表とMATLAB Lightning Talk について取り上げます。 【ポスター発表】 ポスター発表は MATLAB を用いて行った研讨やプロジェクトの效果を発表する、学会発表などでお馴染みの企画です。各大学、民間企業をはじめ、国立研讨開発法人からも幅広いテーマで、14名の方からご発表いただきました。 発表いただいたポスターはこちらからご覧いただけます。 EXPO 来場者による人気投票のTop 3をご紹介します。 第1位:「Arduino-MATLABによるセンサ情報の获得 (その2)」- コニカミノルタ株式会社 西垣 森緒様 第2位:「スピーカーの状態空間モデルと現代制御理論を用いた空間音響再現」- 株式会社 Trigence Semiconductor 岩村 宏様 第3位:「機械学習や 3 次元点群処理技術が切り拓く植物計測の技術改造」- 東京大学 大学院 板倉 健太様 ポスター投票第1位の発表の様子 西垣様は最多得票者の発表の瞬間もポスター前で質問に答えていたほど来場者の関心を集めていました。 【MATLAB Lightning Talk】 来場者によるアンケートに「EXPO で一番盛り上がっていた」とのお声をいただいたのが MATLAB Lightning Talk です。 各自5分の持ち時間で MATLAB を使った面白ネタを発表する人気企画なのですが、本年の盛況ぶりはさすがに想定外です。発表内容は残念ながらご視聴いただけませんが、タイトルはこちら。想像通り?...

标签: Uncategorized

MATLAB ユーザーコミュニティー

2019-06-06 09:45:55

New on MATLAB Central: Power Electronics and a Japanese Blog

Here are some Estonian phrases that might prove useful some day. Kas ma saan kohvi palun? Can I have some coffee, please? Kuidas sa ütled "eigenvalue" Eesti keeles? How do you say "eigenvalue" in Estonian? On selge et see maatriks ei ole sümmeetriline. This matrix is clearly far from symmetric. I was thinking about translation because I wanted to draw...

标签: Uncategorized

MATLAB Community

2019-06-05 17:56:40

High School Students Create Fitness Trackers for MATLAB STEM Challenge

This week our guest blogger Jose Avendano is back to talk to us about the MATLAB STEM Challenge which concluded recently. In this challenge students from Franklin and Needham high schools created fitness trackers using MATLAB. MATLAB STEM Challenge As part of the student competitions team at MathWorks, we are involved with many different programming challenges. The MATLAB STEM...

标签: Education, MATLAB, Skills, Team achievements

Racing Lounge

2019-06-05 09:36:36

Ensemble Learning

Combining Deep Learning networks to increase prediction accuracy. The following post is from Maria Duarte Rosa, who wrote a great post on neural network feature visualization, talking about ways to increase your model prediction accuracy. Have you tried training different architectures from scratch? Have you tried different weight initializations? Have you tried transfer learning using different...

标签: Uncategorized

Deep Learning

2019-06-03 16:30:07

Memory Info

Sean's pick this week is Memory Info by Sviatoslav Danylenko. Have you ever wanted to get the current memory used by MATLAB? I do this occassionally at the command line and have done this in code to prevent creating an array that would cause me to use more memory than available RAM. A few years...

标签: Picks

File Exchange Pick of the Week

2019-05-31 09:00:27

Image processing helps solve the age-old mystery of “Why do zebras have stripes?”

Why are zebras striped? The hypotheses are many and varied. Do the stripes work as camouflage, temperature regulation, or a barcode so that individuals are distinguishable in a herd? The most popular theory by far, dating all the way back to the 1870s and Charles Darwin’s theory of natural selection, was that the zebra stripes acted as a form of...

标签: Uncategorized

Behind the Headlines

2019-05-30 12:01:25

Deep Learning for Student Competitions

In today’s post, Neha Goel is going to share an overview about how you can use MATLAB and188bet开户 for Developing Artificial Intelligent components in your competitions. Neha joined the team recently and focuses on deep learning and data science competitions. Also find a section in this post where Neha reveals what projects she is currently working on. -- Competitions...

标签: Education, MATLAB, Skills, Workflow

Racing Lounge

2019-05-29 23:26:31

Welcome to Japan Community Blog!

日本のMATLABユーザーに向けた情報発信のためのブログを開設いたします。 各所で実施されているユーザー会の紹介 MathWorks 主催のユーザーイベント報告 File Exchange や MATLAB Answers の注视エントリー紹介 MATLAB 活用例や技術動向 などなど幅広くご紹介する予定です。 主に以下3人で担任いたしますので、MATLAB Expo やセミナーなどでお会いしたときはお気軽にお声がけください。 Megumi Sasaki (佐々木 恩恵、右): Marketing Communication Specialist Michio Inoue (井上 道雄、左): Application Engineer Jiro Doke (道家 治郎、中心): Customer Success Engineer またこんな紹介してほしいなどのご要望も遠慮なくコメント欄に記載ください。どうぞよろしくお願いいたします。...

标签: Uncategorized

MATLAB ユーザーコミュニティー

2019-05-29 09:00:46

Big Data in MAT Files

Today's guest blogger is Adam Filion, a Senior Product Manager at MathWorks. Adam helps manage and prioritize our development efforts in data science and big data.MAT files are an easy and common way to store MATLAB variables to disk. They support all MATLAB variable types, have good data compression, and can be accessed or created from other applications through an...

标签: Big Data

Loren on the Art of MATLAB

2019-05-29 08:27:26

Matrix Eigenvalue Dating Service

This is a summary of my talk at the conference Celebrating the Centenary of James H. Wilkinson's Birth at the University of Manchester, May 29.Jim Wilkinson knew that a matrix with badly conditioned simple eigenvalues must be close to a matrix with multiple eigenvalues. How can you find the nearest matrix where some of the eigenvalues have found their mates?Much...

标签: Eigenvalues, Matrices, Numerical Analysis, People, Singular Values

Cleve’s Corner: Cleve Moler on Mathematics and Computing

2019-05-28 21:17:07

My Web Scraping App: Only Get HTML Content if Page List Changes

Currently, my (small scale) web scraping app reads the HTML content of the list of pages, then searches for pattern matches. I want to change it, so that it only reads the HTML content if the list of pages changes. This will make it quicker for me to iterate on different patterns. Features covered in this code-along style video include:...

标签: App Designer, Code-Along, Format: Video

Stuart’s MATLAB Videos

2019-05-28 12:16:28

ThingSpeak functionality ships with R2019a

Jiro's Pick this week is ThingSpeak Support Toolbox by MathWorks Internet of Things Team.ThingSpeak is MathWorks' IoT platform. You can use ThingSpeak for free for non-commercial small projects, but you can also purchase a license with enhanced capabilities, such as the ability to send/receive more messages at a higher frequency.This Toolbox allows you to connect to ThingSpeak directly from your...

标签: Picks

File Exchange Pick of the Week

2019-05-25 12:47:13

An Eigenvalue Sensitivity Example

On May 29-30, I plan to attend a conference, organized by Nick Higham, at the University of Manchester. The title of the conference isCelebrating the Centenary of James H. Wilkinson's BirthI am giving a talk about one of Wilkinson's favorite topics, how can perturbations of a matrix with sensitive eigenvalues produce a defective matrix with a multiple eigenvalue. I uncovered...

标签: Eigenvalues, History, Matrices, Numerical Analysis

Cleve’s Corner: Cleve Moler on Mathematics and Computing

2019-05-22 12:00:30

How to Suppress Function Output

You may have noticed that we have some functions that return no output if none is requested, and yet some functions always return something, even if not asked. What's a good way to achieve this in MATLAB?I do want to point out that while we used to use this programming pattern more often, we have tended to back away from...

标签: Coding Style

Loren on the Art of MATLAB

2019-05-21 22:00:28

Winners of eBAJA SAEINDIA 2019 use MATLAB and188bet开户 for their Vehicle Design

For today’s post, I would like to introduce you to Team Stallions from Nirma University. They recently secured overall 1st rank in eBAJA SAEINDIA 2019, Indore and are here to share their experience of using MATLAB and188bet开户 for their vehicle design. -- From our previous years’ experience, we learned that simulation is an important part of the design...

标签: Automotive, Education, Simulink, Team achievements

Racing Lounge

2019-05-20 13:57:40

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