Tohru Kikawada
MathWorks
162 total contributions since 2016Application Engineer
Professional Interests: Signal Processing, Image Processing, Computer Vision, Deep Learning and Robotics
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Submitted
MATLABによる画像処理・コンピュータービジョン評価キット
MATLABによる画像処理・コンピュータービジョンの機能紹介スライドとデモファイル
2 meses ago | 39 downloads |
rosbagファイルの結合について
残念ながらRobotics System Toolboxは現状でrosbagの書き出しには対応していません。 一方、2つのrosbagを読み出して時系列データとして統合することは可能です。たとえば、timeseriesとして扱う例はこちらにあります。
6 meses ago | 0
| accepted
時変係数行列での微分方程式の解法
非線形の偏微分方程式のようですので下記が参考になるかもしれません。 <https://jp.mathworks.com/help/symbolic/examples/solve-a-partial-differential-equation-tsunam...
7 meses ago | 1
| accepted
イメージラベラーで特定の色の箇所だけ、ラベリングする方法
赤色の部分を抽出してラベル画像化する方法があります。 ご参考になれば幸いです。 %% 画像を保存 imDir = 'images'; [~,~,~] = mkdir(imDir); websave(fullfile(imDir,'image....
7 meses ago | 0
| accepted
SimlinkでFFTを行い，ピーク値を求めたい
DSP System Toolboxをお持ちでないということですとMATLAB Functionブロックと|fft|関数を組み合わせて、ご自身でモデルを作っていただく必要があります。 ご自身で試してみて不明点を質問した方が回答が集まりやすいと思います。
7 meses ago | 1
行列への代入について
線形インデックスを使うのがよいかもしれません。 point=[1 2;2 3;3 2; 1 3]; M=zeros(3,3); M(sub2ind(size(M),point(:,1),point(:,2)))=1; 添字から線...
7 meses ago | 2
| accepted
How can I interface CAN_Pack _Unpack with a ROS publisher to generate a standalone ROS node?
Unfortunately, Robotics System Toolbox does not support ROS node generation for models that contain models generating shared lib...
7 meses ago | 0
| accepted
Matlab Radar Simulation in Gazebo
If you want to integrate a radar model on Gazebo side, you'll need to write your own SDF file for Gazebo: <http://gazebosim.org...
7 meses ago | 0
Vector transformation from one coordinate system to another
I believe you can do that with the utility functions provided by Robotics System Toolbox like follows. <https://mathworks.com/h...
7 meses ago | 0
Deploying a ROS node on Raspberry Pi in external mode with Simulink
I'd recommend you to try the first path. In the external mode, the deployed model can be running as a ROS node simultaneously li...
7 meses ago | 0
How to link simscape model with a mcode+gui?
The following inverse kinematics block cab be used just for inverse kinematics on Simulink: <https://jp.mathworks.com/help/robo...
7 meses ago | 0
Acquire real-time data from ROS
If you mean acquiring the streaming data through ROS, that's possible using a rossbuscriber in Robotics System Toolbox. Otherwis...
7 meses ago | 0
Convert ROS greyscale image msg in Simulink
Try this Read Image block in Robotics System Toolbox. <https://mathworks.com/help/robotics/ref/readimageblock.html>
7 meses ago | 0
Cannot connect to my Virtual Machine "Ubuntu 14.04" as a ROS device for code generation. Error At "Test" stage under Hardware Implementation for Simulink Coder
You can check the ssh service is running on your Ubuntu with the following command: sudo service ssh restart If the serv...
7 meses ago | 0
Problem generating C++ code from simulink for standalone ROS node. How to solve the problem of Could not find information file: /home/jane/Documents/slprj/ert/HoffManSubSystem2/tmwinternal/binfo.mat ?
Model Reference with ROS Publsher/Subscriber blocks is suported after R2019a.
7 meses ago | 0
Create ROS custom message with a Format 2 package.xml
The ROS message package format 2 is not currently supported. You should still be able to get it to work by changing the line: ...
7 meses ago | 0
Matlab and ROS communication
Security software often blocks the communication between the host and the target enven if the pings are successful. Please make ...
7 meses ago | 0
Create a ROS custom message
You'll need to write the custom ROS messages in a manner before using MATLAB. <http://wiki.ros.org/ROS/Tutorials/CreatingMsgAnd...
7 meses ago | 0
I am not able to read data from the ROS file
You'll need to install custom ROS messages for |rt_msgs.Odom|. See the following link for details: <https://jp.mathworks.com/m...
7 meses ago | 0
How to export PointCloud2 Data from a bagfile with a timestamp?
Reading PointCloud2 messages from rosbag is one of the capabilities of Robotics System Toolbox, so you'll need to introduce the ...
7 meses ago | 0
Question about exporting ROS_HOSTNAME to setup.sh
It depends on your environment, but normally just appending the export command to your .bashrc in your home directory will work....
7 meses ago | 0
Merging Laser Readings into one Topic
The frame_id shoud be published as described in the following documentation. <https://mathworks.com/help/robotics/examples/acce...
7 meses ago | 0
ROS interaction in Matlab R2013b
Unfortunately, there is no way to install Robotics System Toolbox before R2015a release.
7 meses ago | 0
How to publish several topics for a single node?
You'll need to create two publshers corresponding to each topic. Regarding the single node, you can control nodes running on MA...
7 meses ago | 0
| accepted
Semantic Segmentation - How many layers to replace in transfer learning?
Did you see |helperDeeplabv3PlusResnet18.m| which is attached to the example as a supporting file? The supporting function might...
7 meses ago | 0
４次元のボリュームデータの重心座標抽出
強度付きのボリュームデータをregionprops3に引数としてあたえると、自動的にバイナリ化されて、領域解析にかけられます。 強度付きボリューム全体の重心を求める際には、バイナリのマスクと強度ボリュームを別々に与えることで実現できます。 ...
7 meses ago | 1
| accepted
Simultaneously inverting many matrices
You can leverage Symbolic Math Toolbox to vectorize the calculation. % Define size of matrices M=2; N=10000; A=rand(M,M,N); ...
8 meses ago | 2
2次元行列演算のSIMD命令による高速化
下記が参考になるかもしれません。 https://jp.mathworks.com/matlabcentral/answers/224361-simultaneously-inverting-many-matrices 基本的には任意のM対して下記を参...
8 meses ago | 0
カラーマーカーを使ったトラッキングの動作について
ファイル内のコメントに沿って作ってみてはいかがでしょう？ % 色のしきい値アプリを使ってマスク関数を作成 colorThresholder(frame); % 色空間はHSVを選択 % 緑色のマーカーだけが検出されるようにし...
8 meses ago | 1
既知の姿勢を使用するマッピングについて
はい、原理的には可能と思います。ただ、精度の面では調整は必要です。 下記は3D点群のレジストレーションで地図データを作成しています。 https://jp.mathworks.com/help/vision/examples/3-d-point-clo...
8 meses ago | 2
| accepted
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