Pix4d is a very good software, but i cant see that it has improved or developed much in years.
Point cloud generation and mesh generation is pretty decent on surfaces and organic shapes, but still struggles greatly on edges creating buckled shapes and artefacts above edges.
Maybe its time to adress this ?
The project I am working on has a no photography policy so I probably shouldn’t send the data to external parties, but I did grab a screenshot of the mesh (point cloud is similar) to illustrate what artefacts I mean.
These artefacts are quite common around sharp edges in my experience so I would be surprised if you are not already familiar with the issue.
Not sure why this happens, there is nothing physically there so it must be some limitation with the point cloud algorithm. The point cloud is usually very good at organic shapes, not so much with smaller details and edges.
Another bug near edges happen in orthofotos near sharp edges and especially overhanging structures of roofs where it tries to use the dsm for surfaces in both elevations and fails at both.
Maybe some edge detection algorithm to make lines sharper ?
Med vennlig hilsen
With best regards
Ola Magne Ruud
Landmåler / Stikningsingeniør
Surveyor / geomatics engineer
Tlf 91396504
Landmåler Ruud as
www.mruud.noDu kan også nå oss gjennom vår felles postkasse
We truly value the feedback from somebody like you who has been part of Pix4D for some years already and always shares an honest opinion with us. I will make sure that it will reach out to the proper people in our company. To keep the openness, I have to say that our teams are aware of where the current algorithms are efficient, and where they are not. They are working hard on improvements testing thousands of images for future enhancements. In the latest preview of Pix4Dmapper 4.5.3, we decided to upgrade filtering of dense point cloud for oblique projects. We would be happy to know your opinion about whether you noticed a difference in your projects. More is yet to come. However, as we know, those things won’t change overnight, and they take some time. I asked for the dataset because very often by readjusting the processing option we can eliminate the bugs that can occur later. Everything depends on the dataset. But with the Support team is always good to try.
I understand that things take time to implement, but I must add that I do have concerns about your priorities and active development of the software. As I have noted with several software packages I use daily there seems to be an amazing effort into making innovative and user friendly software before release but after a short while any real development and innovation crawls to almost a standstill and is mostly left to bugfixing while still charging a pretty sum yearly to use the now slowly outdating software.
I can’t help but think that pix4d has followed the same pattern since I started using it. It is still good and I use it daily, but I have become more careful in my recommendations to others and keep a close eye on alternatives.
Several good suggestions from the user community have been dormant in your forums for years with no hints of it ever reaching the software.
I get that its good for shareholders to milk the software for profits now that is has become popular, but in my mind it is short sighted with continuous development based on user input is the best way to make the software popular and relevant for years. If you want to be included in defining the business standard for aerial photogrammetry in the years and decades to come I suggest you start implementing some actual new and useful features
Med vennlig hilsen
With best regards
Ola Magne Ruud
Landmåler / Stikningsingeniør
Surveyor / geomatics engineer
Tlf 91396504
Landmåler Ruud as
www.mruud.noDu kan også nå oss gjennom vår felles postkasse
As I mentioned before, your feedback as any other is going to be registered and shared among our teams. We never neglect any customer opinion. The opposite, we value it highly. We take it, consider it and try to do it better than we initially were asked for. Certainly, the future will define our efforts.
You are always welcome to share your opinion and expertise with us.
Let’s stay in touch.
These cookies are necessary for the website to function and cannot be switched off in our systems.
They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences,
logging in, or filling in forms. These cookies do not store any personally identifiable information.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site.
They help us to know which pages are the most and least popular and see how visitors move around the site.
All information these cookies collect is aggregated and therefore anonymous.
If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
These cookies may be set through our site by our advertising partner (Google).
They may be used by Google to build a profile of your interests and show you relevant adverts on other sites.
They do not directly store personal information but are based on uniquely identifying your browser and internet device.
If you do not allow these cookies, you will experience less targeted advertising.