Home Community ULIP and ULIP-2: Envisioning a Future Where Machines Perceive 3D Objects as Humans Do – A Quantum Leap in Three-Dimensional Comprehension

ULIP and ULIP-2: Envisioning a Future Where Machines Perceive 3D Objects as Humans Do – A Quantum Leap in Three-Dimensional Comprehension

ULIP and ULIP-2: Envisioning a Future Where Machines Perceive 3D Objects as Humans Do – A Quantum Leap in Three-Dimensional Comprehension

Take into consideration a future where machines have the identical level of 3D object comprehension as humans. By radically improving 3D comprehension, the ULIP and ULIP-2 initiatives, funded by Salesforce AI, are making this a reality. Aligning 3D point clouds, pictures, and texts right into a single representation space, ULIP pre-trains models like no other method can. Using this method, we may achieve state-of-the-art performance on 3D classification tasks and explore latest avenues for image-to-3D retrieval and other cross-domain applications. Following the success of ULIP, ULIP-2 uses huge multimodal models to provide holistic language equivalents for 3D objects, allowing for scalable multimodal pre-training without the necessity for manual annotations. With the assistance of those revolutionary projects, we’re getting closer to a time when artificial intelligence can fully comprehend our physical reality.

Critical to the event of AI, research in three-dimensional cognition focuses on teaching computers to think and behave in space the way in which humans do. Quite a few technologies, from driverless vehicles and robotics to augmented and virtual realities, depend on this skill heavily.

3D comprehension was difficult for a very long time as a result of the high difficulty related to processing and comprehending 3D input. These difficulties are amplified by the high price tag attached to gathering and annotating 3D data. The complexity of real-world 3D data, reminiscent of noise and missing information, is usually further compounded by the information itself. Opportunities in 3D comprehension have expanded because of recent AI and machine learning developments. Multimodal learning, during which models are trained using data from various sensory modalities, is a promising latest development. By taking into consideration not only the geometry of 3D objects but additionally how they’re depicted in photos and described within the text, this method can assist models in capturing an entire knowledge of the things in query.

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Salesforce AI’s ULIP and ULIP-2 programs are within the vanguard of those developments. With their cutting-edge approaches to 3D-environment comprehension, these projects are revolutionizing the sector. Scalable improvements in 3D comprehension are made possible by the ULIP and ULIP-2’s use of cutting-edge, practical methodologies that tap into the potential of multimodal learning.


The ULIP takes a novel method by first training models on sets of three data types: photos, textual descriptions, and 3D point clouds. In a way, this system is analogous to instructing a machine to understand a 3D object by providing it with information on the thing’s appearance (picture), function (text description), and structure (3D point cloud).

ULIP’s success may be attributed to using the pre-aligned image and text encoders like CLIP, which has already been pre-trained on many picture-text pairs. Using these encoders, the model can higher comprehend and categorize 3D objects, because the characteristics from each modality are aligned in a single representation space. Along with enhancing the model’s knowledge of 3D input, the 3D encoder gets multimodal context through higher 3D representation learning, allowing for cross-modal applications reminiscent of zero-shot categorization and picture-to-3D retrieval.

ULIP : Key features

  • Any 3D design can profit from ULIP since it is backbone network agnostic.
  • Our framework, ULIP, pre-trains quite a few recent 3D backbones on ShapeNet55, allowing them to attain state-of-the-art performance on ModelNet40 and ScanObjectNN in traditional 3D classification and zero-shot 3D classification.
  • On ScanObjectNN, ULIP increases PointMLP’s performance by about 3%, and on ModelNet40, ULIP achieves a 28.8% improvement in top-1 accuracy for zero-shot 3D classification in comparison with PointCLIP.


ULIP-2 improves upon its predecessor through the use of the computational might of today’s massive multimodal models. Scalability and the absence of manual annotations contribute to this approach’s effectiveness and flexibility.

The ULIP-2 method generates comprehensive natural language descriptions of every 3D object for the model’s training process. To totally realize the advantages of multimodal pre-training, this technique allows for generating large-scale tri-modal datasets without manual annotations. 

As well as, we share the resulting tri-modal datasets, dubbed “ULIP-Objaverse Triplets” and “ULIP-ShapeNet Triplets,” respectively.

ULIP-2 : Key Features

  • ULIP-2 significantly enhances upstream zero-shot categorization on ModelNet40 (74.0% in top-1 accuracy).
  • This method is scalable to large datasets since it doesn’t require 3D annotations. By achieving an overall accuracy of 91.5% with only one.4 million parameters on the real-world ScanObjectNN benchmark, this method represents a significant step forward in scalable multimodal 3D representation learning without human 3D annotations.

Salesforce AI’s support of the ULIP project and the following ULIP-2 is driving revolutionary changes within the 3D understanding industry. To enhance 3D classification and open the door to cross-modal applications, ULIP brings together previously disparate modalities right into a single framework. When constructing big tri-modal datasets without manual annotations, ULIP-2 goes above and beyond. These endeavors are breaking latest ground in 3D comprehension, opening the door to a future where machines can fully comprehend the world around us in three dimensions.

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Dhanshree Shenwai is a Computer Science Engineer and has an excellent experience in FinTech corporations covering Financial, Cards & Payments and Banking domain with keen interest in applications of AI. She is passionate about exploring latest technologies and advancements in today’s evolving world making everyone’s life easy.

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