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Variational auto-encoder (VAE) is a powerful unsupervised learning framework for image generation. One drawback of VAE is that it generates blurry images due to its Gaussianity assumption and thus L2 loss. To allow the generation of high…

Computer Vision and Pattern Recognition · Computer Science 2017-05-23 Lei Cai , Hongyang Gao , Shuiwang Ji

Many expressive visualizations are shared online only as bitmap images, making them difficult to redesign or adapt to new data. Reusing such image-based visualizations requires substantial expertise and is often time-consuming, even for…

Human-Computer Interaction · Computer Science 2026-04-20 Xiaolin Wen , Changlin Li , Manusha Karunathilaka , Can Liu , Fangzhuo Jin , Yong Wang

Exact subgraph matching is a fundamental graph operator that supports many graph analytics tasks, yet it remains computationally challenging due to its NP-completeness. Recent learning-based approaches accelerate query processing via…

Databases · Computer Science 2026-04-22 Yutong Ye , Weilong Ren , Yang Liu , Mengyi Yan , Ruijie Wang , Li Sun , Jianxin Li , Philip S. Yu

Advances in large language models (LLMs) offer new possibilities for enhancing math education by automating support for both teachers and students. While prior work has focused on generating math problems and high-quality distractors, the…

Artificial Intelligence · Computer Science 2025-03-11 Jaewook Lee , Jeongah Lee , Wanyong Feng , Andrew Lan

We introduce DeepMorph, an information embedding technique for vector drawings. Provided a vector drawing, such as a Scalable Vector Graphics (SVG) file, our method embeds bitstrings in the image by perturbing the drawing primitives (lines,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Søren Rasmussen , Karsten Østergaard Noe , Oliver Gyldenberg Hjermitslev , Henrik Pedersen

Leveraging the SIMD capability of modern CPU architectures is mandatory to take full benefit of their increasing performance. To exploit this feature, binary executables must be explicitly vectorized by the developers or an automatic…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-07-03 Hayfa Tayeb , Ludovic Paillat , Berenger Bramas

Recovering the spatial layout of the cameras and the geometry of the scene from extreme-view images is a longstanding challenge in computer vision. Prevailing 3D reconstruction algorithms often adopt the image matching paradigm and presume…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Wei-Chiu Ma , Anqi Joyce Yang , Shenlong Wang , Raquel Urtasun , Antonio Torralba

Most existing vision encoders map images into a fixed-length sequence of tokens, overlooking the fact that different images contain varying amounts of information. For example, a visually complex image (e.g., a cluttered room) inherently…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Lingjun Mao , Rodolfo Corona , Xin Liang , Wenhao Yan , Zineng Tang

Vision Transformer (ViT) architectures represent images as collections of high-dimensional vectorized tokens, each corresponding to a rectangular non-overlapping patch. This representation trades spatial granularity for embedding…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Dong Lao , Yangchao Wu , Tian Yu Liu , Alex Wong , Stefano Soatto

Visual Language Models (VLMs) are now increasingly being merged with Large Language Models (LLMs) to enable new capabilities, particularly in terms of improved interactivity and open-ended responsiveness. While these are remarkable…

Vector-quantized representations enable powerful discrete generative models but lack semantic structure in token space, limiting interpretable human control. We introduce SOM-VQ, a tokenization method that combines vector quantization with…

Machine Learning · Computer Science 2026-02-25 Alessandro Londei , Denise Lanzieri , Matteo Benati

Raster well-log images are digital representations of well-logs data generated over the years. Raster digital well logs represent bitmaps of the log image in a rectangular array of black (zeros) and white dots (ones) called pixels. Experts…

Geophysics · Physics 2022-10-12 M Quamer Nasim , Narendra Patwardhan , Tannistha Maiti , Tarry Singh

Feature representations, both hand-designed and learned ones, are often hard to analyze and interpret, even when they are extracted from visual data. We propose a new approach to study image representations by inverting them with an…

Neural and Evolutionary Computing · Computer Science 2016-04-28 Alexey Dosovitskiy , Thomas Brox

The success of denoising diffusion models in representing rich data distributions over 2D raster images has prompted research on extending them to other data representations, such as vector graphics. Unfortunately due to their variable…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Vikas Thamizharasan , Difan Liu , Matthew Fisher , Nanxuan Zhao , Evangelos Kalogerakis , Michal Lukac

Autoregressive (AR) models have recently shown strong performance in image generation, where a critical component is the visual tokenizer (VT) that maps continuous pixel inputs to discrete token sequences. The quality of the VT largely…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Huawei Lin , Tong Geng , Zhaozhuo Xu , Weijie Zhao

We present a method to improve the visual realism of low-quality, synthetic images, e.g. OpenGL renderings. Training an unpaired synthetic-to-real translation network in image space is severely under-constrained and produces visible…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Sai Bi , Kalyan Sunkavalli , Federico Perazzi , Eli Shechtman , Vladimir Kim , Ravi Ramamoorthi

At present, and increasingly so in the future, much of the captured visual content will not be seen by humans. Instead, it will be used for automated machine vision analytics and may require occasional human viewing. Examples of such…

Image and Video Processing · Electrical Eng. & Systems 2022-04-13 Hyomin Choi , Ivan V. Bajic

Originally designed for applications in computer graphics, visual computing (VC) methods synthesize information about physical and virtual worlds, using prescribed algorithms optimized for spatial computing. VC is used to analyze geometry,…

In medical image visualization, path tracing of volumetric medical data like CT scans produces lifelike three-dimensional visualizations. Immersive VR displays can further enhance the understanding of complex anatomies. Going beyond the…

Graphics · Computer Science 2026-01-30 Constantin Kleinbeck , Hannah Schieber , Klaus Engel , Ralf Gutjahr , Daniel Roth

Pretrained Vision Transformers (ViTs) such as DINOv2 and MAE provide generic image features that can be applied to a variety of downstream tasks such as retrieval, classification, and segmentation. However, such representations tend to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Jona Ruthardt , Manu Gaur , Deva Ramanan , Makarand Tapaswi , Yuki M. Asano