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Generating sketches with specific patterns as expected, i.e., manipulating sketches in a controllable way, is a popular task. Recent studies control sketch features at stroke-level by editing values of stroke embeddings as conditions.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Sicong Zang , Shuhui Gao , Zhijun Fang

Vectorized glyphs are widely used in poster design, network animation, art display, and various other fields due to their scalability and flexibility. In typography, they are often seen as special sequences composed of ordered strokes. This…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Xinyue Zhang , Haolong Li , Jiawei Ma , Chen Ye

We demonstrate that pre-trained text-to-image diffusion models, despite being trained on raster images, possess a remarkable capacity to guide vector sketch synthesis. In this paper, we introduce DiffSketcher, a novel algorithm for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Ximing Xing , Chuang Wang , Haitao Zhou , Jing Zhang , Qian Yu , Dong Xu

Understanding the nature of human sketches is challenging because of the wide variation in how they are created. Recognizing complex structural patterns improves both the accuracy in recognizing sketches and the fidelity of the generated…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Giulio Federico , Giuseppe Amato , Fabio Carrara , Claudio Gennaro , Marco Di Benedetto

With the involvement of artificial intelligence (AI), sketches can be automatically generated under certain topics. Even though breakthroughs have been made in previous studies in this area, a relatively high proportion of the generated…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Yunkui Pang , Zhiqing Pan , Ruiyang Sun , Shuchong Wang

We present a generative model which can automatically summarize the stroke composition of free-hand sketches of a given category. When our model is fit to a collection of sketches with similar poses, it discovers and learns the structure…

Computer Vision and Pattern Recognition · Computer Science 2015-10-12 Yi Li , Yi-Zhe Song , Timothy Hospedales , Shaogang Gong

The ability to automatically complete a partial sketch that depicts a complex scene, e.g., "a woman chatting with a man in the park", is very useful. However, existing sketch generation methods create sketches from scratch; they do not…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Hsiao-Yuan Chin , I-Chao Shen , Yi-Ting Chiu , Ariel Shamir , Bing-Yu Chen

Scene Graph Generation (SGG) aims to extract entities, predicates and their semantic structure from images, enabling deep understanding of visual content, with many applications such as visual reasoning and image retrieval. Nevertheless,…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Alireza Zareian , Svebor Karaman , Shih-Fu Chang

This work introduces Semantically Masked Vector Quantized Generative Adversarial Network (SQ-GAN), a novel approach integrating semantically driven image coding and vector quantization to optimize image compression for…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Francesco Pezone , Sergio Barbarossa , Giuseppe Caire

Creating a stroke-by-stroke evolution process of a visual artwork tries to bridge the emotional and educational gap between the finished static artwork and its creation process. Recent stroke-based painting systems focus on capturing stroke…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Jeripothula Prudviraj , Vikram Jamwal

We present CoGS, a novel method for the style-conditioned, sketch-driven synthesis of images. CoGS enables exploration of diverse appearance possibilities for a given sketched object, enabling decoupled control over the structure and the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Cusuh Ham , Gemma Canet Tarres , Tu Bui , James Hays , Zhe Lin , John Collomosse

Vectorizing hand-drawn sketches is a challenging task, which is of paramount importance for creating CAD vectorized versions for the fashion and creative workflows. This paper proposes a complete framework that automatically transforms…

Computer Vision and Pattern Recognition · Computer Science 2018-02-19 Luca Donati , Simone Cesano , Andrea Prati

Product quantisation (PQ) is a classical method for scalable vector encoding, yet it has seen limited usage for latent representations in high-fidelity image generation. In this work, we introduce PQGAN, a quantised image autoencoder that…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Denis Zavadski , Nikita Philip Tatsch , Carsten Rother

Computer-aided design (CAD) is the most widely used modeling approach for technical design. The typical starting point in these designs is 2D sketches which can later be extruded and combined to obtain complex three-dimensional assemblies.…

Machine Learning · Computer Science 2021-06-08 Wamiq Reyaz Para , Shariq Farooq Bhat , Paul Guerrero , Tom Kelly , Niloy Mitra , Leonidas Guibas , Peter Wonka

We develop a method for producing vector sketches one part at a time. To do this, we train a multi-modal language model-based agent using a novel multi-turn process-reward reinforcement learning following supervised fine-tuning. Our…

Artificial Intelligence · Computer Science 2026-04-27 Xiaodan Du , Ruize Xu , David Yunis , Yael Vinker , Greg Shakhnarovich

Sketching is a direct and inexpensive means of visual expression. Though image-based sketching has been well studied, video-based sketch animation generation is still very challenging due to the temporal coherence requirement. In this…

Graphics · Computer Science 2026-03-19 Xinding Zhu , Xinye Yang , Shuyang Zheng , Zhexin Zhang , Fei Gao , Jing Huang , Jiazhou Chen

Image generation has received increasing attention because of its wide application in security and entertainment. Sketch-based face generation brings more fun and better quality of image generation due to supervised interaction. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Weihao Xia , Yujiu Yang , Jing-Hao Xue

Visual illusions traditionally rely on spatial manipulations such as multi-view consistency. In this work, we introduce Progressive Semantic Illusions, a novel vector sketching task where a single sketch undergoes a dramatic semantic…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Huai-Hsun Cheng , Siang-Ling Zhang , Yu-Lun Liu

Geometry- and appearance-controlled full-body human image generation is an interesting but challenging task. Existing solutions are either unconditional or dependent on coarse conditions (e.g., pose, text), thus lacking explicit geometry…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Linzi Qu , Jiaxiang Shang , Hui Ye , Xiaoguang Han , Hongbo Fu

We introduce a novel sketch-to-image tool that aligns with the iterative refinement process of artists. Our tool lets users sketch blocking strokes to coarsely represent the placement and form of objects and detail strokes to refine their…

Graphics · Computer Science 2024-10-28 Vishnu Sarukkai , Lu Yuan , Mia Tang , Maneesh Agrawala , Kayvon Fatahalian