Perspective distortion in a tweening. how?

I want to tween a movieclip so it changes from squared to trapezoid. Just imagine a text paragraph distorted like the scrolling text in the beginning of Star Wars movies.
It would be easy to make the shape and then distort it, but what I want is to tween from undistorted to distorted and it seems that normal tweening only allows skewing, rotation and resizing.
Since a picture is worth a thousand words, this is what I want to do (the dog is not the movieclip I want to distort, just an example):
This is easy in Photoshop (CTRL+T and then pick a corner with SHIFT+CTRL+ALT) and also in edition time in Flash, but I want the distortion to happen in execution time so it looks like the movieclip is standing up and then falls back.

On your object, create a motion tween and make sure the object is selected. Change the vanishing point to the center of your object - you can do this in the Property insector under the 3D positon and View category (adjust the X and Y and you will see the lines - line those up with the transform point on the instance).
Then select the 3D rotation tool, and make sure the playhead is at the end of the tween span. You need to adjust the X rotation, which is the vertical red line. Mouse over the red line, then click and drag up and down until you have the desired rotation.

Similar Messages

Lens Distortion Non-linear Distortion and Perspective Distortion

Hello everyone, I'm a member of the vision team in the Intelligent Ground Vehicle team in Cal State Northridge, an autonomous robot that uses real time feed and laser data as sensors.
So we need a fully undistorted video feed for us to do image analysis with the lowest processing time.
We have a distortion situation with our current vision system where we have to fix Non-linear Distortion due to the use of a wide lens ( About 144 Deg ) and also Perspective Distortion of the projected image. The camera is mounted on top of our robot with an angle with the ground (about 45 Deg).
I have been using labview for about 6 months, and have been trying to correct this distortion using Vision Assistant program to generate VI's.
First I'll list my attempts here and then I will direct some questions.
First attempt, a picture of a dot grid was taken with our camera and that picture was correct by Vision Assistant's nonlinear image calibration. Then a VI was generated by Vision Assistant, and we changed in the input from images to video.
This method worked but not accurately.
Second attempt, we tried to remap the image pixels using a correction function generated through Excel, this method did not work accurately either. I'm not even sure how to do this again since it was done in the past.
So my questions are here:
1) what's the best approach to correct the distortion in our camera? and how please.
2) what are we doing wrong/right in general?
3) Generally, how would I improve any vision VI to reach faster processing times?
Everyone's help is very much appreciated,
Omar
Cal State Northridge
The Intelligent Ground Vehicle team
[email protected]

I'd like to correct the information provided by Bruce. It was correct up til Vision Development Module 2010. You need to update, Bruce ;-)
In Vision Development Module 2011, we improved the accuracy and precision of our grid calibration, by computing a lens distortion model (Division or Polynomial Model), that take into account radial and tangential non-linear distortion of the lens. The new algorithm also allows to compute the internal parameters of the lens (focal length and optical center), that you can use to determine the relationship of the camera to the object under inspection.
The microplane algorithm that Bruce described is still availale, as it can be used to solve applications in which the object you're trying to calibrate is non planar, and can be calibrated by wrapping the grid around the object.
A calibration will be valid for a specific perspective plane, and will need to be recomputed if the camera moves or object is in a different plane.
Typically, the calibration process is an offline process. For performance reasons, you don't necessarily want to correct the entire image (although VDM provides you with that function). As Bruce mentioned, most algorithms, like edge detection, pattern matching etc, return their data both in pixels and real-word data, talking into account the calibration information that you learned. For the few algorithms that only provide pixel results, you can use VIs to convert Pixels to Real-World. This operation is fast.
What type of features are you trying to measure in the image? Can it be solved in 2D, or do you need 3D information? How many cameras do you have on the robot?
-Christophe

Missing buttons perspective distort and touch type tool

Hi all -
I'm new to Illustrator and using video tutorials tutorials to learn my way around CS6. I've encountered two buttons in tutorials that I can't find anywhere on my workspace (I'm in layout): perspective distort and touch type.
Perspective distort: In the tutorial, when you click on the free transform tool a box pops up with 4 different options (constrain, free transform, perspective distort, free distort) - that box is not popping up. For reference: Transform artwork | Adobe Illustrator CC tutorials (approx 1:10). On my end there are no additional buttons for free transform.
Touch type: In the tutorial it has reference the touch type tool being in two different locations: in the character panel and in the type tool. No touch type tool anywhere in sight for me.
Suggestions?
Thanks!

Both only available in the CC version (CC2014) not in CS6.

How do I create a reflection in Keynote on a perspective distorted image?

I distorted the image in photoshop but when I bring it into Keynote and apply the Reflection feature the reflection applies as if the image was not distorted.
Any help would be appreciated. Thanks.

Welcome to the discussions yellowbike123.
There's a tip on this page
http://www.keynoteuser.com/2007/10/26/keynote-and-leopard-anything-new/
towards the bottom, it goes into how to use the OSX developer tools (Quartz Composer) to convert your image to one that has a perspective reflection. I'm going to check Snow Leopard now to see if it still exists.

Two camera distortion correction images and how to get rid of

I noticed when I was using the Correct Camera Distortion filter that two images were created after I finished. The edges of the bottom image were peeking out from under the top, duplicate image. Not a problem until I went to copy and paste from image to another and the pasted image although showing up on a layer didn't show up on the image it was to be on. I guess because it's "lost" under the bottom duplicate image. Why do I get two of the same images in this situation and how can I get rid of them so I can continue to copy and paste an image from one photo to another?

Went to Filter>Correct Camera Distorition. Made changes. Clicked OK, I think. It's kind of a hit and miss process and I tried several Horizontal Perspective and Vertical Perspective settings before getting it right and, who knows, maybe I didn't click Cancel sometimes.

Perspective grid: some grids invisible - how to bring them back?

I was drawing an image using 2-vanishing-point perspective grid when, at some point, for a reason unknown to me, 2 out of 3 grids dissapeared.
Currently I have the left (blue) grid, but they right (orange) and bottom (green) grids are not there.
My question is, how to bring them back, without resetting the whole grid?
Thank you

Monika Gause wrote:
Or did you hide the grids by Alt-clicking the widget that moves the perspective planes?
The latter is the case!
I was copying objects perpendicularly, by Shift+Alt+Dragging the widget. I might have accidently Alt+clicked the widget in the process.
Later on, in an attempt to solve the problem I thought I did everything I could with the widgets, but apparently I missed that.
Thank you!

I am getting audio from the right channel only my iPad and it is distorted with static. How can I resolve this problem?

How do I adjust the audio output of my iPad? There is sound only from the right channel and it is distorted with static.

There is no adjustment as the iPad 2 speaker is on the right side only.

Perspective distortion or page curl in aperture?

I'm in the need of giving some photos a "perspective" look, a distortion that reduces the height of one vertical side or the other in order to make it appear to reced in the distance.
I'm also curious about a page curl effect where one corner or another can be given the effect of curling.
Are either/both of these effects available in Aperture? If not, in iPhoto? (Am I barking up the wrong tree here?) If still not, any 3rd party app suggestions?
And if so, where do I look for them? I've scoured menus and dropdowns and haven't seen anything.
thanks!

Not really what Viewpoint does, which is normalize horizontals and verticals in photographs made with a non-level camera. (It does more -- well covered at the link William provided). I use and recommend Viewpoint, with the caveat that the most common things it's used for can be done easily in Photoshop. If I understand correctly, the OP wants to create distortion, not remove it.
OP: the two effects you mention cannot be done in Aperture. They are graphics effects (as opposed, loosely, to photo effects). You will need a graphics program (such as Photoshop, among many) to do what you want.

Motion Tweening - How to keep part of it in place?

Is there any way of keeping say, the bottom of a line fixed, and motion tweening only the top? (Think grass or hair, for instance, bending in a wind)
Unfortunately this item cannot be shape-tweened. But is there something, not unlike shape hints, for motion tweening?
Thank you,
-Paula

you'll need to use shape tweening.

Skew and perspective distortion for video files

hello forumers.
im trying to place a video on the screen of this game station,but i cant get the corners to snap accordingly to the perspective of the screen,
i can scew the object but thats about it like on the b) sample but i want to snap it like on a)sample.is it possible to be done in flash or is it a adobe premirer task?
thank you

Hi,
I have my videos on a separate machine that's networked to my MacBook. iTunes reads it directly off the other machine. Obviously I have to be home and networked to get access to them, but you don't have to have your files on the machine that has iTunes installed. My other machine is actually a windows box too.

The sound of podcasts are distorted when I download them to my ipod touch. How do I fix/ prevent this?

The sound is fine on my computer, but when I sync them with my ipod they are distorted. Why? How do I fix this?

Have you tried a hard reset of the iPod yet to see if that helps?
What about a restore?
B-rock

How to envelope distort a linked file ?

in the perspective grid command. I am able to create rectangles, but is there a way in which I can place a linked file in the perspective grid. if not then how to align the linked file to a rectangle placed in perspective grid

Manish,
What happens if you create/fit a nostroke/nofill rectangle on top of your linked image, then Group them and try again?
You may ClickDrag between opposite corners with the Rectangle Tool (Smart Guides are your friends).

How do I stop audio from distorting?

Ever since I purchased Logic Pro X, when I record through my audio interface, it crackles, delays and sometimes even distorts the sound. How do I fix this to have a clean sound? Thanks.

Try Flash Block: https://addons.mozilla.org/firefox/addon/flashblock/

How do I reduce distortion if my recording goes over 0 db?

Hi, I am recording acoustic guitar using Adobe Audition CS5.
My playing style is predominantly finger picking with the occasional strum.
The problem is that finger picking is alot quieter than strumming, so when I am finger picking it is recording at roughly -3 db but when I throw in the occasional strum it goes way way over 0 db and when I play it back it sounds distorted and horrible.
How can I work around this?
many thanks
Dan

Set the level according to the loudest sound you're going to make, and then allow several dB of headroom over this - at least 6dB if you are going to play safe, which is the best thing to do. For live concert recording I leave at least 12dB, as you can never tell what's going to happen.
The most important thing to do though is to get what's known as the 'gain staging' correct. You haven't said what you are using to record with, but if you have a mic preamp with a gain control, it's important to get this set to the correct level initially - you don't want clipping lights coming on at that stage, because there's nothing you can do about that at all; once it's distorted there it will be recorded distorted whatever you set the level to.
Only when the gain's set correctly can you determine your recording level sensibly. On properly optimised systems, you only need to set the gain, as everything else is correctly matched from there on, and all of your gain has to be set by the gain control or, if it's a very loud signal, an attenuator on the mic itself.
If you are just recording with a single mic, no gain control and nothing other than the record level to set, then with the best will in the world, you're very unlikely to end up with an optimised recording whatever you do - unless you're very lucky.

How to get rid of overhead light glare

I have a picture that I want to get rid of the overhead light glare. I did take two pictures.
thank you
Mike

I think a perspective / distort (p/d) transform will probably work even better. There's still some glare in both shots in the o and r, and the oval edging, but otherwise it looks pretty good. I just copied the top of the o and rotated and p/d transformed it to fit the bottom. Same with the r.
You can see some softness in the stem of the m where my soft brush betrays the inexact lining up of the two images. Any tips on how to use distort transform more effectively would be appreciated. I always find it a bit fiddly.
http://helpx.adobe.com/photoshop/using/transforming-objects.html

Perspective distortion in a tweening. how?

Similar Messages

Maybe you are looking for