kalibr | The Kalibr visual-inertial calibration toolbox | Robotics library

by ethz-asl C++ Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | kalibr Summary

kalibr is a C++ library typically used in Automation, Robotics applications. kalibr has no bugs, it has no vulnerabilities and it has medium support. However kalibr has a Non-SPDX License. You can download it from GitHub.

Kalibr is a toolbox that solves the following calibration problems:.

Support

Quality

Security

License

Reuse

Support

kalibr has a medium active ecosystem.

It has 3440 star(s) with 1262 fork(s). There are 147 watchers for this library.

It had no major release in the last 6 months.

There are 77 open issues and 430 have been closed. On average issues are closed in 214 days. There are 5 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of kalibr is current.

Quality

kalibr has 0 bugs and 0 code smells.

Security

kalibr has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

kalibr code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

kalibr has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

kalibr releases are not available. You will need to build from source code and install.

It has 8008 lines of code, 487 functions and 116 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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kalibr Key Features

No Key Features are available at this moment for kalibr.

kalibr Examples and Code Snippets

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Community Discussions

Trending Discussions on kalibr

Cropping to only valid pixels after remap with fisheye (equidistant) stereo rectification?

WPF Custom commands changing a picture

iOS WKWebView improperly calculating height when there is embedded tweet

QUESTION

Cropping to only valid pixels after remap with fisheye (equidistant) stereo rectification?

Asked 2019-Oct-13 at 06:21

I have two cameras offset horizontally and have acquired their calibration parameters (Camera Matrix and Distortion Coefficients, as well as the transform between them) using Kalibr under the pinhole-equidistant model (distortion coefficients k1, k2, k3, k4).

I want to use openCVs cv.fisheye.stereoRectify to create new projection matrices for each camera that i can feed into cv.fisheye.initUndistortRectifyMap and then into cv.remap to rectify and undistort each image.

Unfortunately even with the balance parameter in fisheye.stereoRectify set to 0 the remaped images still have black pixels bowing into them. I want to crop each image such that no invalid pixels exist in either of the undistorted camera images.

I see that the standard cv.stereoRectify function has an alpha parameter that does exactly this. But it seems like cv.fisheye.stereoRectify does not have this parameter. Thus I want to replicate its features.

cv.stereoRectify seems to use the radtan distortion model (distortion parameters k1, k2, p1, p2) so I dont think i can easily swap that function in since i dont have p1 and p2.

snippet from my pipeline to follow below:

...

ANSWER

Answered 2019-Oct-13 at 06:21

Here is how I would do it in Imagemagick using -trim. I note that -trim can keep track of the offsets of the upper left corner after the trim relative to where it was before the trim (by leaving off +repage, which clears that geometry information). So I trim each image and have it keep track. Then I place the trimmed images in a black background separately and then append the two results side-by-side and then trimmed the black again.

Since the originals were not provided, I cut the images out of what was provided.

Left:

Right:

Source https://stackoverflow.com/questions/58349762

QUESTION

WPF Custom commands changing a picture

Asked 2017-Nov-02 at 09:52

I am attempting to change a picture when clicking on it in the sidebar menu, but however nothing seem to happen when I click on a image. This is done in WPF and for a image editing program. I have been reading up on custom commands and reading other custom commands posts here on StackOverflow but I can't seem to find anything that apply to this case.

...

ANSWER

Answered 2017-Nov-02 at 09:52

This class looks like a lot of people tinkered with it until it broke, so I removed everything that is no longer in use anyway.

Source https://stackoverflow.com/questions/47034013

QUESTION

iOS WKWebView improperly calculating height when there is embedded tweet

Asked 2017-Oct-26 at 12:56

My app uses WKWebView to present html string. WkWebView is embedded in a scrollView because i have several other elements (e.g. buttons, tableViews). Because of that i need to calculate the size of WkWebvView content and for that i use evaluateJavaScript(“document.body.scrollHeight”, completionHandler: method. Whenever i have embedded tweet in a html string, content height is wrongly calculated and my webview cuts a piece of its height.

Part of html string which has tweet embedded looks like this:

#SYRIA Admiral Essen frigate launched #Kalibr cruise missiles against ISIS objects near Deir ez-Zor pic.twitter.com/azHAIii07g
— Минобороны России (@mod_russia) September 5, 2017

(BLABLA* is actually t.co/azHAIii07g which i had to replace because of stackoverflow rules)

Is there something missing in this twitter code, or should i set something in webview methods?

I tried implementing solution from this post: iOS Calculate correct WKWebview height for html string with embeded tweet but there was no success or at least i could figure out the answer.

Any advice is appreciated??

UPDATE: I hacked a little bit and found horrible workaround, but it is a good lead for where the problem lies. This is the full function which i use for calculating height:

...

ANSWER

Answered 2017-Oct-26 at 12:56

With the help several posts on stackoverflow (especially: Twitter Uncaught TypeError: undefined is not a function), and my colleague who is a web developer, I managed to find a solution to this issue. Basically, the idea is to add a script to the webview configuration if there is an embedded tweet in a html string which webview needs to load. After that we should implement userContentController didReceive message function and in it we should evaluate the height of a webview.

Here is the code which should go before webview.loadHtmlString method:

Source https://stackoverflow.com/questions/46057113

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install kalibr

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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