Bojan Andonovski

14 Questions 27 Answers 0 Followers

Questions related from Bojan Andonovski

Objects Color Matching against a Reference Standard (ColorCODEX) ?

Hi Im trying to build and train a Machine Learning model that autonomously perform color matching between the target gemstone and the Reference Standard color chart. A digital photo image of the...

05 February 2023 7,271 1 View

Is CNN algorthms ( ResNet-18 and ResNet-50 ) better for Gemstone classification (from image dataset)then Random Forest, Logistic Regression and SVM?

Hi I would like to use Machine Learning methodology for automatic image-based classification of precious stones (like diamonds, sapphire, ruby, etc).. . So I have more then 100 000 images of...

05 February 2023 1,265 8 View

Self-Localization of a Swarm of Underwater Vehicles ?

Hi I like to perform a Self-Localization of a Swarm of Underwater Vehicles using Time Difference of Arrival (TDOA) of acoustic signals. I found this paper relevant for my problem but there...

21 July 2022 2,782 0 View

How to get odometry from propeler rotation singals knowing that they can rotatet to maximim and be constant at that rotattion?

Im trying to get Velocity in order to control underwater swarm ROV. I can use the acceleration and to Euler integration but the error will be accumulated over time. As we are having a swarm...

13 October 2021 3,863 3 View

Is it Visual-inertial localisation better solution for underwater compare to Sonar(ultrasound)?

Hello I have to perform a localization of a underwater autonomous vehicle (UUV) and for that purpose have a couple of sensors available on board. I know that ultrasonic (Sonar) sensors perform...

09 September 2021 2,996 4 View

How to send a compressed video with a very low latency from raspberry Pi 4 Model B with camera module V2?

Hi Im using raspberry Pi 4 B and have installed ROS melodic. I have Raspberry Pi Camera V2.1. Would like to send a compressed video with a lower latency as much as possible to the...

24 August 2021 4,916 3 View

Real time 6D pose estimation of known 3D CAD objects from a single 2D image or point clouds from RGBD Camera when objects are one on top of the other?

Hello, I'm working on a research project where I need to estimate in real time the 6DOF pose of objects in a pick and place tasks. The pose must be estimate in real time, and the objects can be...

03 June 2020 7,332 0 View

Obstacle avoidance with pure Monocular Cameras?

I would like to do obstacle avoidance using only Monocular Cameras. I will use ROS and Ubuntu as a framework. The application is in construction industry so would like to detect the material which...

13 March 2018 3,705 4 View

Deep Convolutional Networks via Bayesian Optimization and Structured Prediction

Hi, I would like to do some object detection where have two restrictions. First one is that at the moment dont have large number of images for training (at the moment are around 550 images)....

02 August 2017 5,929 2 View

How do you validate user behaviour in power mobility devices in indoor environments?

I have done some experiments to classify the performance of the user while driving the robot in an indoor environment. So after successful classification of users behaviour in the power mobility...

11 April 2014 5,044 1 View

Transforming linear acceleration data of IMU to linear velocity

Hi I have IMU sensor that gives me the raw data such as orientation, Angular and Linear acceleration. Im using ROS and doing some Gazebo UUV simulation. Furthermore, I want to get linear...

01 January 1970 3,783 7 View

What are standard metdods for joystick cable teleoperated underwater ROV( Remotly Operated Vehicle)

Hi I would like to know the standard approaches (methods) for cable teleoperated underwater ROV. So the standard teleportation control methods of the underwater ROV with joystick cable Thanks

01 January 1970 3,280 4 View

Get accurate depth from two monocular cameras (working as stereo) by long distances ?

Hello I have two Cahmeleon3 mono cameras and made it work as stereo (as Master Slave) synchronized. I need to use them for long distances object detection and collision avoidance /obstacle...

01 January 1970 8,706 3 View

What are common method for sensor feedback in teleoperated underwater ROV to close the control loop

HI I would like to know what are the common method to get sensor sensor feedback in teleoperated underwater ROV to close the control loop. I mean does it use Velocity or Force and what sensor...

01 January 1970 347 7 View