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Thesis - Image Based Motor Position Calibration/Refinement
Posted on Dec. 6, 2024
- Lund, Sweden
- No Salary information.
- Full Time
Job Title
Job Description
Category
Computer Science, Electrical Engineering or similar
Scope
Two students, 15/30hp
Background
Motorized cameras rely on knowing the relative motor position as well as the camera direction angles e.g. pan, tilt, and roll. In many cases there is no feedback of the motor positions and the positions are based on knowing the relative movement from a known state. The accuracy of the absolute position depends on many different factors, including mechanical accuracy as well as the method used for calibrating the system.
During development/use of cameras with PTR (pan, tilt and roll) functionality there is a need to measure the absolute positions of the motors in and the camera direction angles. This information can be used in many scenarios to assess the system performance.
The goal is to use image based feedback on motor positions in two setups.
1) Develop a test setup (fixture) to measure the position accuracy of the camera during development and assess the accuracy achieved with an image-based approach.
2) Develop an image-based calibration method to find the reference position/(s) by analyzing images which show parts of the camera internals. The result should be used to compare the accuracy of the image-based method to the existing method.
Goal
Scenario 1: Image based measurements of positions in a fixture
- Identify distinct features in the image.
- Correlate the identified features to angle coordinates, pan, tilt and roll of the camera to calibrate the motor positions
Scenario 2: Image based measurements of positions without a fixture.
- Identify features in Images showing parts of the camera itself.
- Calculate pan, tilt, and roll angles based on the identified features and compare with the reported camera angles. Comparing the reported camera position with the ones calculated from the image features can be used for detecting issues with the camera's positioning system.
Who are you?
For this thesis proposal we target students that like problem solving and working with both software and hardware. We think that you are students at a university where you study computer science, electrical engineering, or physics.
You have the possibility to be in Lund as the thesis work mostly will be done at Axis HQ.
OK, I am interested! What do I do now?
You are valuable to us – how nice that you are interested in one of our proposals! There are a few things for you to keep in mind when applying.
You are valuable to us – how nice that you are interested in one of our proposals! There are a few things for you to keep in mind when applying.
- Applications are accepted in both Swedish and English, and you apply via the proposal advert.
- The announced thesis is open only to students affiliated with a Swedish University/College either directly or via an exchange program.
- When the thesis proposal states that it includes two students working together, we would like you to apply in pairs. In these cases, send one application each but make sure to clearly state in your application who your co-applicant is. If you have any questions regarding this, please do not hesitate to contact us.
- Please attach your CV and University/College grade summary.
Who to contact for any questions regarding the position!
Patrik Svensson, Manager +46 46 272 18 00
Type of Employment
Temporary Employment (Fixed Term)
Posting End Date
2025-01-31
Certain roles at Axis require background checks, which means applicable verifications will be done in these recruitments. Notice will be provided before we take any action.
About Axis Communications
We enable a smarter, safer world by creating innovative solutions for improving security and business performance. As a network technology company and industry leader, we offer solutions in video surveillance, access control, intercom, and audio systems, enhanced by intelligent analytics applications.
With around 4500 committed employees in over 50 countries, we collaborate with partners worldwide. Together, we thrive in our friendly, open, and collaborative culture and inspire each other to think beyond the expected. United by our commitment to inclusion, diversity, and sustainability, we consistently seek to develop our skills and way of working.
Let´s create a smarter, safer world
For more information about Axis, please visit our website
www.axis.com
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