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Image tokenizers play a critical role in shaping the performance of subsequent generative models. Since the introduction of VQ-GAN, discrete image tokenization has undergone remarkable advancements. Improvements in architecture,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Xiang Li , Kai Qiu , Hao Chen , Jason Kuen , Jiuxiang Gu , Jindong Wang , Zhe Lin , Bhiksha Raj

While most frontier models still use deterministic frequency-based tokenization algorithms such as byte-pair encoding (BPE), there has been significant recent work to design learned neural tokenizers. However, these schemes generally add to…

Machine Learning · Computer Science 2025-12-29 Theo Datta , Kayla Huang , Sham Kakade , David Brandfonbrener

Vision-Language Models (VLMs) achieve outstanding performance, yet their huge model size severely hinders deployment on edge devices with limited resources. As an efficient model compression technique, vector quantization (VQ) excels in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Zhong Wang , Zukang Xu , Xing Hu , Dawei Yang

In virtual reality (VR) applications, 360-degree images play a pivotal role in crafting immersive experiences and offering panoramic views, thus improving user Quality of Experience (QoE). However, the voluminous data generated by…

Image and Video Processing · Electrical Eng. & Systems 2024-06-10 Yang Ma , Wenchi Cheng , Jingqing Wang , Wei Zhang

The key to achieving autonomous driving lies in topology-aware perception, the structured understanding of the driving environment with an emphasis on lane topology and road semantics. This survey systematically reviews four core research…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yixiao Chen , Ruining Yang , Xin Chen , Jia He , Dongliang Xu , Yue Yao

In order to perform complex actions in human environments, an autonomous robot needs the ability to understand the environment, that is, to gather and maintain spatial knowledge. Topological map is commonly used for representing large…

Robotics · Computer Science 2017-07-11 Kaiyu Zheng

For a robot to perform complex manipulation tasks, it is necessary for it to have a good grasping ability. However, vision based robotic grasp detection is hindered by the unavailability of sufficient labelled data. Furthermore, the…

Machine Learning · Computer Science 2020-01-31 Mridul Mahajan , Tryambak Bhattacharjee , Arya Krishnan , Priya Shukla , G C Nandi

Vision-Language Models (VLMs) have demonstrated remarkable performance across a variety of real-world tasks. However, existing VLMs typically process visual information by serializing images, a method that diverges significantly from the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Yueyan Li , Chenggong Zhao , Zeyuan Zang , Caixia Yuan , Xiaojie Wang

Continuous monitoring with an ever-increasing number of sensors has become ubiquitous across many application domains. However, acquired time series are typically high-dimensional and difficult to interpret. Expressive deep learning (DL)…

Machine Learning · Computer Science 2023-05-26 Iris A. M. Huijben , Arthur A. Nijdam , Sebastiaan Overeem , Merel M. van Gilst , Ruud J. G. van Sloun

In this paper, we present a novel workflow consisting of algebraic algorithms and data structures for fast and topologically accurate conversion of vector data models such as Boundary Representations into voxels (topological voxelization);…

Graphics · Computer Science 2023-09-28 Pirouz Nourian , Shervin Azadi

Vector Quantized Variational Autoencoders (VQ-VAEs) are fundamental to modern generative modeling, yet they often suffer from training instability and "codebook collapse" due to the inherent coupling of representation learning and discrete…

Machine Learning · Computer Science 2026-02-20 Linwei Zhai , Han Ding , Mingzhi Lin , Cui Zhao , Fei Wang , Ge Wang , Wang Zhi , Wei Xi

Vision-language models have shown strong performance, but they often generalize poorly to specialized domains. While semi-supervised vision-language learning mitigates this limitation by leveraging a small set of labeled image-text pairs…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Junwon You , Mihyun Jang , Sangwoo Mo , Jae-Hun Jung

Traditional transformer-based semantic segmentation relies on quantized embeddings. However, our analysis reveals that autoencoder accuracy on segmentation mask using quantized embeddings (e.g. VQ-VAE) is 8% lower than continuous-valued…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Masud Ahmed , Zahid Hasan , Syed Arefinul Haque , Abu Zaher Md Faridee , Sanjay Purushotham , Suya You , Nirmalya Roy

Learning deep discrete latent presentations offers a promise of better symbolic and summarized abstractions that are more useful to subsequent downstream tasks. Inspired by the seminal Vector Quantized Variational Auto-Encoder (VQ-VAE),…

Machine Learning · Computer Science 2023-06-21 Tung-Long Vuong , Trung Le , He Zhao , Chuanxia Zheng , Mehrtash Harandi , Jianfei Cai , Dinh Phung

Vector-Quantized Variational Autoencoders (VQ-VAE)[1] provide an unsupervised model for learning discrete representations by combining vector quantization and autoencoders. In this paper, we study the use of VQ-VAE for representation…

Image and Video Processing · Electrical Eng. & Systems 2019-03-05 Hanwei Wu , Markus Flierl

Visual Question Answering (VQA) attracts much attention from both industry and academia. As a multi-modality task, it is challenging since it requires not only visual and textual understanding, but also the ability to align cross-modality…

Computer Vision and Pattern Recognition · Computer Science 2022-01-27 Peixi Xiong , Quanzeng You , Pei Yu , Zicheng Liu , Ying Wu

Bird's-eye-view (BEV) map layout estimation requires an accurate and full understanding of the semantics for the environmental elements around the ego car to make the results coherent and realistic. Due to the challenges posed by occlusion,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Yiwei Zhang , Jin Gao , Fudong Ge , Guan Luo , Bing Li , Zhaoxiang Zhang , Haibin Ling , Weiming Hu

Recent large language models have shifted SVG generation from differentiable rendering optimization to autoregressive program synthesis. However, existing approaches still rely on generic byte-level tokenization inherited from natural…

Machine Learning · Computer Science 2026-04-13 Ximing Xing , Ziteng Xue , Zhenxi Li , Weicong Liang , Linqing Wang , Zhantao Yang , Tiankai Hang , Zijin Yin , Qinglin Lu , Chunyu Wang , Qian Yu

The image tokenizer is a critical component in AR image generation, as it determines how rich and structured visual content is encoded into compact representations. Existing quantization-based tokenizers such as VQ-GAN primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Yiang Shi , Xiaoyang Guo , Wei Yin , Mingkai Jia , Qian Zhang , Xiaolin Hu , Wenyu Liu , Xinggang Wang

Generative methods have recently seen significant improvements by generating in a lower-dimensional latent representation of the data. However, many of the generative methods applied in the latent space remain complex and difficult to…

Machine Learning · Computer Science 2025-01-22 Alona Levy-Jurgenson , Zohar Yakhini
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