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Choropleth maps, which utilize color schemes to visualize spatial patterns and trends, are simple yet effective tools for geographic data analysis. As such, color scheme design is a critical aspect of choropleth map creation. The…

Human-Computer Interaction · Computer Science 2025-03-21 Nai Yang , Yijie Wang , Fan Wu , Zhiwei Wei

Multimodal ambiguity and color bleeding remain challenging in colorization. To tackle these problems, we propose a new GAN-based colorization approach PalGAN, integrated with palette estimation and chromatic attention. To circumvent the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Yi Wang , Menghan Xia , Lu Qi , Jing Shao , Yu Qiao

This article investigates how graph matching can be applied to process plant design data in order to support the reuse of previous designs. A literature review of existing graph matching algorithms is performed, and a group of algorithms is…

Machine Learning · Computer Science 2021-03-24 Miia Rantala , Hannu Niemistö , Tommi Karhela , Seppo Sierla , Valeriy Vyatkin

Visualizations often encode numeric data using sequential and diverging color ramps. Effective ramps use colors that are sufficiently discriminable, align well with the data, and are aesthetically pleasing. Designers rely on years of…

Human-Computer Interaction · Computer Science 2019-08-05 Stephen Smart , Keke Wu , Danielle Albers Szafir

A new grayscale-based block scrambling image encryption scheme is presented to enhance the security of Encryption-then-Compression (EtC) systems, which are used to securely transmit images through an untrusted channel provider. The proposed…

Cryptography and Security · Computer Science 2018-12-18 Warit Sirichotedumrong , Tatsuya Chuman , Hitoshi Kiya

Recent advances in image generation have made it easy to produce high-quality images. However, these outputs are inherently flattened, entangling foreground elements, background, and text within a fixed canvas. As a result, flexible…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Kam Man Wu , Haolin Yang , Qingyu Chen , Yihu Tang , Jingye Chen , Qifeng Chen

Ground-plane cloak designs are presented, which minimize scattering of electromagnetic radiation from metallic objects in the visible spectrum. It is showed that simplified ground-plane cloaks made from only a few blocks of all-dielectric…

Classical Physics · Physics 2009-09-30 Efthymios Kallos , Christos Argyropoulos , Yang Hao

As more tech companies engage in rigorous economic analyses, we are confronted with a data problem: in-house papers cannot be replicated due to use of sensitive, proprietary, or private data. Readers are left to assume that the obscured…

General Economics · Economics 2020-11-10 Allison Koenecke , Hal Varian

Human beings can imagine the colours of a grayscale image with no particular effort thanks to their ability of semantic feature extraction. Can an autonomous system achieve that? Can it hallucinate plausible and vibrant colours? This is the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Rita Pucci , Christian Micheloni , Gian Luca Foresti , Niki Martinel

Designer manipulation of light at the nanoscale is key to several next-generation technologies, from sensing to optical computing. One way to manipulate light is to design a material structured at the sub-wavelength scale, a metamaterial,…

Reproducibility should be a cornerstone of scientific research and is a growing concern among the scientific community and the public. Understanding how to design services and tools that support documentation, preservation and sharing is…

Human-Computer Interaction · Computer Science 2019-03-15 Sebastian S. Feger , Sünje Dallmeier-Tiessen , Albrecht Schmidt , Paweł W. Woźniak

Visualization linters are end-user facing evaluators that automatically identify potential chart issues. These spell-checker like systems offer a blend of interpretability and customization that is not found in other forms of automated…

Human-Computer Interaction · Computer Science 2024-08-01 Andrew McNutt , Maureen C. Stone , Jeffrey Heer

Given a grayscale photograph as input, this paper attacks the problem of hallucinating a plausible color version of the photograph. This problem is clearly underconstrained, so previous approaches have either relied on significant user…

Computer Vision and Pattern Recognition · Computer Science 2016-10-06 Richard Zhang , Phillip Isola , Alexei A. Efros

Global overlay maps of science use base maps that are overlaid by specific data (from single researchers, institutions, or countries) for visualizing scientific performance such as field-specific paper output. A procedure to create global…

Digital Libraries · Computer Science 2024-12-10 Robin Haunschild , Lutz Bornmann

The prop formalism allows representation of processes withstring diagrams and has been successfully applied in various areas such as quantum computing, electric circuits and control flow graphs. However, these graphical approaches suffer…

Logic in Computer Science · Computer Science 2020-07-08 Titouan Carette , Simon Perdrix

The democratization of fabrication equipment has spurred recent interest in maskless grayscale lithography for both 2D and 3D microfabrication. However, the design of suitable template images remains a challenge. This work presents a…

Numerous methods have been proposed to transform color and grayscale images to their single bit-per-pixel binary counterparts. Commonly, the goal is to enhance specific attributes of the original image to make it more amenable for analysis.…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Shumeet Baluja

Graph Spectral Clustering methods (GSC) allow representing clusters of diverse shapes, densities, etc. However, the results of such algorithms, when applied e.g. to text documents, are hard to explain to the user, especially due to…

Colors and shapes are commonly used to encode categories in multi-class scatterplots. Designers often combine the two channels to create redundant encodings, aiming to enhance class distinctions. However, evidence for the effectiveness of…

Human-Computer Interaction · Computer Science 2026-04-14 Chin Tseng , Arran Zeyu Wang , Ghulam Jilani Quadri , Danielle Albers Szafir

Recent work has shown that imperceptible perturbations can be applied to craft unlearnable examples (ULEs), i.e. images whose content cannot be used to improve a classifier during training. In this paper, we reveal the road that researchers…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Zhuoran Liu , Zhengyu Zhao , Alex Kolmus , Tijn Berns , Twan van Laarhoven , Tom Heskes , Martha Larson