In this three-dimensional world, we use words to depict everything and language to explore the universe. But have you ever wondered, what if words could be directly "splashed" into three-dimensional space? What kind of spectacle would that be?
Recently, scholars from Tsinghua University and Harvard University have developed a cutting-edge technology called LangSplat. It uses three-dimensional Gaussian splatting technology to bring words to "life" in 3D space, enabling open text queries of the real world.
Project link: https://github.com/minghanqin/LangSplat
Imagine playing a 3D game and wanting to find a hidden sword. You simply type the word "sword," and LangSplat can accurately locate it in the vast scene. Isn't that amazing?
A Leap in Both Speed and Accuracy
The biggest highlight of LangSplat is its speed and precision.
Speed: At 1080P resolution, its query speed is 200 times that of traditional methods! This means you get instant feedback without having to wait for a progress bar.
Accuracy: Through hierarchical semantic learning, it makes the three-dimensional semantic field clearer, with no more blurred boundaries around targets. It's like using a magnifying glass to observe details; every nook and cranny is vividly clear.
The Black Technology Behind the Scenes
The core technologies of LangSplat include:
Hierarchical Semantic Learning: Utilizing the Segment Anything Model (SAM), it learns multi-level semantics from the whole to the part, enabling precise recognition of each object.
Three-dimensional Gaussian Splatting: In 3D space, it represents semantic information with Gaussian distributions, each Gaussian point encoding rich semantic features.
Scene Autoencoder: To address the issue of storing high-dimensional features, LangSplat has constructed a scene-specific autoencoder, reducing semantic features in dimensionality, saving memory, and improving efficiency.
Boundless Application Prospects
The advent of LangSplat opens a new door to understanding 3D scenes. Whether it's for robot navigation, augmented reality, or 3D editing, it can shine.
Imagine a future where you're playing an immersive VR game and can command a robot to find treasure with just a few words. Or designing a 3D model and quickly modifying parameters through language. All this is no longer a dream.