AMPED FIVE USER MANUAL UPDATE
AMPED FIVE USER MANUAL MANUAL
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AMPED FIVE USER MANUAL MANUAL

If that doesnвЂ™t work, just click on the drop-down menu and try the Dynamic Tracking, it will hopefully do the trick! If you are still unlucky, you can still add some manual selections every few frames to help the algorithm (even when itвЂ™s running in the Dynamic mode).PokГ©mon Red Version and PokГ©mon Blue Version are 1996 role-playing video games developed by Game Freak and published by Nintendo for the Game Boy. LetвЂ™s conclude with this weekвЂ™s takeaway: the strategy we recommend for tracking is to first look at how the object evolves in time: does its aspect change significantly? If not, try the Static Tracking first, possibly adding a couple of additional selections if needed.

Dynamic Tracking on the contrary is more robust to variations, but less precise because errors in one frame may propagate to the next.

Static Tracking has the advantage of being more precise (if tracking fails on one frame, the next one is not affected), at the cost of limited robustness.

LetвЂ™s try Dynamic Tracking on the previous example: if you place your mouse over the pidgeon at the beginning of the video and leave it still, youвЂ™ll see that the pidgeon is finally static (it remains in the position of your mouse).ДЄt this point, you may be asking: вЂњWhy not always use the Dynamic Tracking, then?вЂќ This comes at the cost of a higher computational effort (read: slower processing), and sometimes causes the stabilized object to move slightly (nothing, when compared to the вЂњepic failвЂќ caused by a tracking failure).

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This is where Dynamic Trackingenters the game: instead of using your first selection as reference, the algorithm will update the target object at each frame, so to better capture its changes in shape, perspective and illumination. In fact, Static Tracking always compares the object to вЂњhow it wasвЂќ in the first frame: thus, if the object is moving a lot, like in our example, after a few frames it will have accumulated a huge difference! This is why Static Tracking could not help us with pidgeon stabilization. A strong change in perspective, shape, or lighting complicates the match. Likely, the reason is that the aspect of your object is changing too much, so that the algorithm cannot match its pixels with those in the following frame. But there are cases in which the tracking keeps failing, or too many вЂњmanual hintsвЂќ would be necessary, as with our pidgeonвЂ¦ why is that? Sometimes, your helping hand is needed a couple of times. Now, in many practical cases, a single initial selection is sufficient. We see that now the tracking succeeds until frame 90, then gets lost. This is indeed what happens in our example. If the algorithm fails, you will see the whole frame move abruptly (in case youвЂ™re doing Local Stabilization), or your red circle is randomly going somewhere (if you are annotating), indicating that more work is needed. Just select your object in the first frame as before, but now our algorithm will try to automatically follow it in the next frames. Static Trackingwill do most of the job for you. Normally, we suggest you try Static and Dynamic tracking first! Manual Tracking can be an easy solution when you are doing redaction and you want to follow an object through a few frames.

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Keep in mind, however, that Amped FIVE will interpolate the selection between frames, so you are free to specify the object once every few frames, not for every single one. Manual TrackingdoesnвЂ™t leave much to your imagination: you draw a rectangle around your object in the first frame, then by pressing вЂњUвЂќ on your keyboard youвЂ™ll have such selection assigned to Frame 0 and be carried to the next frame, where you will move the rectangle to follow the object, press вЂњUвЂќ and iterate until the end.

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Since most FIVE users have to deal with faces and license plates every day, weвЂ™re using a different example for this Tip: pigeon stabilization! LetвЂ™s see how tracking can be used to stabilize the top-positioned pidgeon in this video (notice that both the pidgeon and the camera are moving): That is why Amped FIVE features several different ways to track your object of interest: Regardless of the goal, good tracking is essential to the success of your processing. More frequently, you will be using tracking as a part of Local Stabilization, that is used to keep your object of interest static, so that you are able to view it better and effectively average its pixels over multiple frames. for having a red circle to follow the circled object as it moves. You may want to track an object for annotation purposes, e.g. Tracking an object is a basic, yet non trivial operation lying underneath a lot of Amped FIVE filters. Today weвЂ™re showing you some tips about tracking in Amped FIVE. Probably, Tip Tuesday aficionados have already understood the trend: weвЂ™re alternating tips for FIVE and Authenticate every week.

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