107 citations · 188 across the 32 of their papers we have counts for
32 papers
Iterative CT Reconstruction via Latent Variable Optimization of Shallow Diffusion Models
Sho Ozaki, Shizuo Kaji, Toshikazu Imae +3
Image-generative artificial intelligence (AI) has garnered significant attention in recent years. In particular, the diffusion model, a core component of generative AI, produces hi…
An explicit construction of Kaleidocycles by elliptic theta functions
Shizuo Kaji, Kenji Kajiwara, Shota Shigetomi
We consider the configuration space of ordered points on the two-dimensional sphere that satisfy a specific system of quadratic equations. We construct periodic orbits in this conf…
Training of deep cross-modality conversion models with a small dataset, and their application in megavoltage CT to kilovoltage CT conversion
Sho Ozaki, Shizuo Kaji, Kanabu Nawa +8
In recent years, deep-learning-based image processing has emerged as a valuable tool for medical imaging owing to its high performance. However, the quality of deep-learning-based…
Free-form Design of Discrete Architectural Surfaces by use of Circle Packing
Shizuo Kaji, Jingyao Zhang
This paper presents an efficient approach for the conceptual design of architectural surfaces which are composed of triangular panels. In the free-form design of discrete architect…
Nested Subspace Arrangement for Representation of Relational Data
Nozomi Hata, Shizuo Kaji, Akihiro Yoshida +1
Studies on acquiring appropriate continuous representations of discrete objects, such as graphs and knowledge base data, have been conducted by many researchers in the field of mac…
Cubical Ripser: Software for computing persistent homology of image and volume data
Shizuo Kaji, Takeki Sudo, Kazushi Ahara
We introduce Cubical Ripser for computing persistent homology of image and volume data (more precisely, weighted cubical complexes). To our best knowledge, Cubical Ripser is curren…