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LEARNING TO GENERATE 3D SHAPES WITH GENERATIVE CELLULAR AUTOΜΑΤΑ

★ ★ ★ ★ ☆

Paper Summary

Paperzilla title
Learning to Generate 3D Shapes with LEGO-like AI

This paper introduces a new method called Generative Cellular Automata (GCA) to create 3D shapes with a computer. GCA is like building with digital LEGOs, starting with a single block and adding more based on learned rules. It performs well at completing missing parts of shapes and generating entirely new ones, but mainly tests on computer-generated, not real-world, shapes.

Explain Like I'm Five

This paper describes a new way to generate 3D shapes using a computer, like chairs and cars. Imagine building with LEGOs, but instead of following instructions, the computer learns its own rules to build cool stuff from a single block.

Possible Conflicts of Interest

The authors acknowledge funding from the National Research Foundation of Korea, but no other conflicts are readily apparent.

Identified Limitations

Limited evaluation on real-world 3D scans
The paper mainly tests the model on computer-generated shapes and part-scanned datasets, which may not fully represent the complexity of real-world scans.
Limited visualization of multiple object generation
The paper doesn't show the actual results of multiple object generation. Additional samples are needed to fully understand the behavior of the model.
Limited analysis on neighborhood radius parameter \(r\)
Although the paper explains that neighborhood radius \(r\) could be adjusted, a specific analysis of how this parameter influences the shape connectivity and the computational performance is missing.

Rating Explanation

This paper presents a novel and efficient method for 3D shape generation, demonstrating competitive performance against existing approaches. The use of sparse convolutions and cellular automata update rules offers a promising direction for generating high-resolution shapes, while the infusion training procedure effectively addresses the training challenges associated with Markov Chain-based models. While more evaluation and analysis would strengthen some aspects, the overall methodology and results justify the 4/5 rating.

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File Information

Original Title: LEARNING TO GENERATE 3D SHAPES WITH GENERATIVE CELLULAR AUTOΜΑΤΑ
Uploaded: August 17, 2025 at 02:31 PM
Privacy: Public