# HaLo-NeRF: Learning Geometry-Guided Semantics for Exploring Unconstrained Photo Collections

## Supplementary Material

##### Please refer to the accompanying PDF document for additional implementation and dataset details, and more results and ablations.

## Video Sequences of HaLo-NeRF and the Baseline Model

Below we show interactive visualizations, comparing HaLo-NeRF (left) with the Baseline model (right), which uses the CLIPSeg model without finetuning.
Both videos show the same temporal sequence of RGB renderings, varying only in the probabilities depicted (taken either from our model or the baseline).
Note that once zoomed-in, we turn off the probabilities for both models, allowing to better view the target semantic region.
The target text prompt is written above each video, with the name of the landmark on the right.
Please hover your mouse over these videos to play them.
As illustrated below, our model yields significantly cleaner probabilities that better localize the semantic regions, particularly for unique concepts that are less common outside of the domain of architectural landmarks.
Note that once zoomed-in, we turn off the probabilities for both models, allowing to better view the target semantic region. We also visualize the zoomed-in region with multiple appearance (for our model, keeping the appearance of the baseline model fixed).
Results over additional prompts and landmarks from the HolyScenes benchmark are illustrated in the main paper.

"Portals" (a grand entrance to a cathedral) Notre-Dame Cathedral
HaLo-NeRF | Baseline
"Towers" Notre-Dame Cathedral
HaLo-NeRF | Baseline
"Minarets" (a tall slender tower of a mosque having one or more balconies from which the summons to prayer is cried by the muezzin) Blue Mosque
HaLo-NeRF | Baseline
"Pediment" (a triangular part at the top of the front of a building that supports the roof and is often decorated) St. Paul's Cathedral
HaLo-NeRF | Baseline
"Colonnade" (a row of columns separated from each other by an equal distance) St. Paul's Cathedral
HaLo-NeRF | Baseline
"Windows" Milan Cathedral
HaLo-NeRF | Baseline