zhang | Numpy implementation of Z. Zhang 's camera calibration | Computer Vision library
kandi X-RAY | zhang Summary
kandi X-RAY | zhang Summary
This repository contains the implementation of Zhang Camera Calibration algorithm in Python.
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Top functions reviewed by kandi - BETA
- Calibration
- Estimate the lens distribution
- Estimate homogeneous homography matrix
- Calculate camera intrinsics
- Estimate the transformation of a homography matrix
- Compute the homography of a scene
- Calculates the normalisation matrix
- R Returns the tensorflow operator
- Parses raw data files
- Generate a timer
- Refine the homogeneous homography
- Estimate camera extrins
zhang Key Features
zhang Examples and Code Snippets
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Trending Discussions on zhang
QUESTION
I am trying to scrape the data in a bunch of rows. I am able to expand an individual row using the following:
...ANSWER
Answered 2022-Mar-30 at 05:17Are almost there...
You can retrieve a list of all the relevant web elements with the use of driver.find_elements method and then to iterate over each element in the list clicking on it.
Since course-row normal faculty-BU active is actually several class names, not a single class name, you should use XPath or CSS Selector there.
Also it's recommended to use visibility_of_element_located expected condition here, not presence_of_elements_located since the former condition is fulfilled even when the web element is not finally rendered on the page while visibility_of_element_located expected condition waits for more mature state of the web element
QUESTION
I want to do a function to parse a slice (an abstract parsing method, which can be JSON, msgpack or XML) from a string array. The type of this slice is uncertain, which can be [] A or [] * A. but now I have a problem. Can you help me
...ANSWER
Answered 2021-Aug-26 at 17:07I have corrected some lines in your unmarshalSlice function.
First you have to create the slice of sent type and then append those type values to that slice. And at the end assign that slice as the value of sent assignable interface.
And call the unmarshalSlice function with assignable type.
QUESTION
I'm trying to make a custom control to use it in multiple places. the thing is it works fine with the label but when it comes to entry it won't even run and it gives me
...ANSWER
Answered 2022-Feb-24 at 03:13You didn't bind the Entry.Text and EntryText property in MyCustomControl.xaml:
Please refer the following code:
QUESTION
I study multithreads in Rust, find an error about use Fn in thread::spawn. My code like this:
...ANSWER
Answered 2022-Feb-23 at 08:24As per the error note, you cannot use &dyn Fn because it is not Send. So, you could use some generics, constrained to what it is needed here, Fn() + Send + 'static:
QUESTION
I've used Jekyll to build my website and it works as intended locally. However, when I deploy my website to github pages, the blog posts no longer show up.
I have consulted a previous question: Jekyll post not generated, but it did not solve my problems.
When I do bundle exec jekyll serve locally, i get the following message
ANSWER
Answered 2022-Jan-23 at 16:57If everything is right you will have a message with an information that your server is running afaik.
For example this is my message (note last line):
QUESTION
Im using .net core 3.1 in an docker environment pointing an IIS Reverse Proxy with ARR installed to it.
Update
I managed to get the rewriting running. BNut since I dont know why it works this way Im unable to answer this question. I changed the rewrite rules from localhost: to 127.0.0.1: Now the handshake works. But it seems not work with websocket protocol only with ServerSentEvents.
...ANSWER
Answered 2022-Jan-20 at 18:32Apperently it works now by removing: Startup.cs
QUESTION
I try to reproduce a data augmentation method, which comes from the paper:
Qinwei Xu, Ruipeng Zhang, Ya Zhang, Yanfeng Wang and Qi Tian "A Fourier-based Framework for Domain Generalization" (CVPR 2021).
It is mentioned in the paper that they set the real part to a constant (the constant in the paper is 20000) to eliminate the amplitude and realize the reconstruction of the image relying only on the phase. Below is my code:
...ANSWER
Answered 2021-Nov-30 at 12:00You are confusing "real"/"imaginary" parts of complex numbers with "amplitude"/"phase" representation.
Here's the quick guide:
A complex number z can be expressed by either a sum of its real part x and its imaginary part y:
z = x + j y
Alternatively, once can express the same complex number z as a rotated vector with amplitude r and an angle phi:
z = r exp(j phi)
Where r = sqrt(x^2 + y^2) and phi=atan2(x,y).
This image (from Wikipedia) explain this visually:
In your code, you replace the "real" part, but in the paper, they suggest replacing the "amplitude".
If you want to replace the amplitude:
QUESTION
I build a simple GUI using Tkinter which I would like to freeze to a standalone executable. I am doing this inside a conda environment. Working with OSX 10.15.7, python 3.7, PyInstaller 4.5.1 and conda 4.10.0. The folder structure looks like this (simplified):
...ANSWER
Answered 2021-Nov-05 at 14:57PYTHONPATH is almost always a local minimum. In my experience, it only complicates things in the long run. I would recommend Step 1 is remove PYTHONPATH from your workflow and learn about python packagens and editable intsalls. It'll make development much easier in the long run.
PYTHONPATH basically started as a way to let "scripts" access other modules without actually installing a package. This made more sense back in the bad old days before virtualenv and conda, but now it is just easier and more organized to just use a package structure.
Try structuring your project like a typical installable python library. E.g.
QUESTION
I'm trying to move a ASP.NET/MVC-.NET4.5 web application to ASP.NET CORE .NET 5.0, and I can't get json serialization/deserialization to work.
This depends upon the server being able to send json objects to the browser, and having the browser send them back - and the serialization/deserialization simply doesn't work.
I've created a simple test application, and it fails with no extraneous complexities.
I started with dotnet new webapp -o JsonTesting.
To it I added an ApiController.
My Startup:
...ANSWER
Answered 2021-Jul-27 at 19:41You need to annotate your POST parameter withFromBodyAttribute:
QUESTION
Basically, I'm trying to modify the accepted response to this question to retain the id field which is used in the aggregation.
So if my input dataframe looks like this:
...ANSWER
Answered 2021-May-11 at 13:24Before concatenating the items within the list, you could count it using size
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Install zhang
You can use zhang like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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