Occupancy Grid Maps (Cyrill Stachniss)

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  • čas přidán 14. 07. 2024
  • Occupancy Grid Maps
    Mobile Sensing and Robotics Course
    Cyrill Stachniss and Nived Chebrolu, 2020
  • Věda a technologie

Komentáře • 24

  • @hendrikbock
    @hendrikbock Před 3 lety +17

    I am glad Mr. Stachniss is doing this kind of videos on CZcams. Sometimes I am missing a bit of background but the videos give a very good general idea of the conveyed concepts. Please continue!

    • @matthewwithum8372
      @matthewwithum8372 Před 3 lety +3

      Came across him back in college. His remote sensing knowledge is astounding. Please keep the content coming! Specifically some Lidar object classification. Please and thank you for all.

  • @natecibik5505
    @natecibik5505 Před 3 lety +5

    Extremely helpful and well explained. Thank you for this video!

  • @PladdenTim
    @PladdenTim Před 2 lety +2

    I must say this was 100 times better explained then by Prof. Burgards mobile robotics lectures, really nice and clean.

  • @michaelscheinfeild9768
    @michaelscheinfeild9768 Před 2 lety +4

    Thank you Cyrill for clear explanation on robot map this help me to build my map to learn on robot and autonomous cars !!

  • @hl-qz1ec
    @hl-qz1ec Před 2 lety +2

    Great explanation!

  • @obensustam3574
    @obensustam3574 Před 6 měsíci +1

    very well explained

  • @woofer466
    @woofer466 Před 2 lety +1

    Thank you for a great lecture!
    Can this filtering algorithm be used to build a local map of current environment around a robot by noisy data of range sensor? For use in tasks such as collision avoidance or local path planning

  • @transfer890
    @transfer890 Před 2 lety

    Hello Cyrill, I wanted to know what values are reasonable for p_occ and p_free.
    Can you tell an example of values that you used in the past? Just to get an idea.
    Thank you very much for the lecture and your work in general.

    • @CallSaul489
      @CallSaul489 Před 2 lety

      Starting probability is 0.5 since it’s unknown

  • @shivamchandel3922
    @shivamchandel3922 Před 3 lety

    which is the best software to deal with lidar data & occupancy grid generation purposes?

  • @AllenCutinha
    @AllenCutinha Před 3 lety +1

    Es wäre sehr hilfreich, wenn Sie die ppt slides für diese informative Vorlesung teilen könnten.

  • @swagatochatterjee7104

    One questions Prof Stachniss, how should we update the map on loop closure? Because at that point, all the wrong cells will be marked with the occupancy probabilities based on the pose-landmark graph, and as we know, Loop closure can change the pose-landmark graph dramatically.
    Another question, say we have a occupancy grid based on two sensors say a LIdar, and a Sonar, how do we puse both of them? Should we just multiply the probabilities, or look for something like a Kalman Filter?

  • @datbuiquang6251
    @datbuiquang6251 Před 2 lety +2

    Can you guy recommend me some coding books for these lectures, thanks?

  • @Anandpasunoori
    @Anandpasunoori Před 2 lety

    Nice video. am new to this topic, where do i get know meaning (details ) for mapping, grid. local grid , uncertainty ...? is there any book or link for beginners with all the basic details to expert level

    • @CyrillStachniss
      @CyrillStachniss  Před 2 lety +2

      If you don’t mind reading, look into the probabilistic robotic book by Thrun, Burgard, Fox

  • @shikhatiwari5575
    @shikhatiwari5575 Před rokem

    Great video Sir it really helps. I have a question if you can help me, what is the difference between and occupancy grid map and reflection or counting based mapping.

    • @CyrillStachniss
      @CyrillStachniss  Před rokem +1

      As the name says, one approach estimates the probability of occupancy and the other one estimate the probability if a beam gets reflected by cell or not. These are two related concepts but not the same things.

    • @shikhatiwari5575
      @shikhatiwari5575 Před rokem

      @@CyrillStachniss Thank you so much Prof. for the reply. Another question to that how this makes a difference when considering windows/glasses in the map.

  • @shoaibahmed2077
    @shoaibahmed2077 Před 3 lety +2

    will you please provide slides ?

    • @PladdenTim
      @PladdenTim Před 2 lety +1

      The slides or similar sliedes can be found on the "mobile robotics lecture" of the Uni Freiburg. Just google "uni freiburg mobile robotics". The slides are a bit different because their are from Prof. Burgard, but their almost the same. Be careful, the order of the slides their are not the same order as this playlist. You have to look at the topics to find the right one.

  • @furkanedizkan7202
    @furkanedizkan7202 Před 2 lety

    Great explanation and very helpful information. Thank you!