Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - bacetiner

Pages: [1]
AI use in Regional Simulation (BRAILS) / Re: Live Expert Tips Session Movie
« on: February 14, 2023, 03:27:36 PM »
Thank you for your patience!

The video for the Live Expert Tips Session titled Regional-Level Building Inventory Generation for Natural Hazards Studies Using BRAILS is now available via the link   

If you have any follow-up questions, please feel free to contact our developers using this forum.

Hope you have a great rest of your week!

AI use in Regional Simulation (BRAILS) / Re: Live Expert Tips Session Movie
« on: February 02, 2023, 05:04:34 PM »
Hi Pooya,

Thank you for your kind words.

The video for the recorded session should be up shortly. I will follow up with the link once it is live.

Hi Sejin,

Thank you for your questions and your detailed post.

A1: Great question. You can download Sreet View images in many unique ways by creating a custom pipeline using FootprintHandler and ImHandler. Do you have a specific method in mind, such as using a list of addresses, etc.?

A2: I think segmentation results should always be post-processed before attribute extraction. For example, if the algorithm detects multiple doors, you can eliminate the smaller detection assuming there will always be one front door to a single-family building. As for windows, polygonization using edge detection could be another method. These ideas will eventually get implemented into BRAILS, but for now, what is in FacadeParser is what BRAILS currently offers.

A3: We have a prototype idea currently implemented in BRAILS based on limiting the field of view to just the building of interest. However, this feature is still undergoing testing and may not be released for another month or two.

I hope this helps!

AI use in Regional Simulation (BRAILS) / Re: Window/Door recognition
« on: November 28, 2022, 05:40:15 PM »
Hi Sejin,

Thank you for your message. You can find a sample Jupyter notebook implementation of ImageSegmenter for facade segmentation at

The examples for FacadeParser are coming up soon.

AI use in Regional Simulation (BRAILS) / Re: Window/Door Segmentation
« on: November 14, 2022, 08:27:38 PM »
Thank you for using the SimCenter forum. The number of attributes available through InventoryGenerator depends on the development status of the module for an attribute. The moment we are confident with the performance of a module for a specific attribute, it gets enabled in InventoryGenerator.

In the case of window and door detection, even though these attributes are not enabled with InventoryGenerator, our FacadeParser module can predict them. So the short answer is, yes, this is achievable with BRAILS.

I will follow up with an example of how to call FacadeParser soon. Stay tuned!

Thank you for your message.

Colab, by default, runs on CPU. To attain the training times shown in the Crack Segmentation example, GPU acceleration must be enabled for your Colab environment.

To enable GPU acceleration,
1) choose Runtime on the menu bar,
2) select Change Runtime Type,
3) set Hardware Accelerator to GPU.

I hope this helps!

Happy to help, thank you again for using the SimCenter forum!

Thank you for using the SimCenter forum. The symptoms you described are fairly typical of the case where Google API Key is valid, but the APIs required for the current version of BRAILS are not enabled for API Key's use.

Utilizing all capabilities of the current version of BRAILS requires three APIs: 1) Street View Static API, 2) Maps Static API, and 3) Geocoding API. You will need to enable all of these APIs for the API Key you created.

The easiest way to enable these APIs is:
1) Go to
2) Select the project for which the API key was created (please see the attached image for the location of this button)
3) Locate the search bar on the top of the page (please see the attached image), enter "APIs and Services", then click the result under Products and Pages.
4) At the APIs and Services page, click on the Enable APIs and Services button, then find and select the three APIs listed above.

These steps should address the API Key issue.

One last thing, BRAILS, by default, searches your folder of images before it downloads the images required for your region. Given in your case, some of the images for your region were already erroneously downloaded, you may still run into image input issues after performing the above changes. To prevent this from happening, please 1) either manually delete the previously downloaded images your folder of images, or 2) call CityBuilder such that reDownloadImgs flag is enabled, i.e., CityBuilder(..........,reDownloadImgs = True).

I hope this helps!

Pages: [1]