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Neural implicit surface representation techniques are in high demand for advancing technologies in augmented reality/virtual reality, digital twins, autonomous navigation, and many other fields. With their ability to model object surfaces…

计算机视觉与模式识别 · 计算机科学 2025-04-30 Naoko Sawada , Pedro Miraldo , Suhas Lohit , Tim K. Marks , Moitreya Chatterjee

While convolution and self-attention are extensively used in learned image compression (LIC) for transform coding, this paper proposes an alternative called Contextual Clustering based LIC (CLIC) which primarily relies on clustering…

图像与视频处理 · 电气工程与系统科学 2024-01-23 Yichi Zhang , Zhihao Duan , Ming Lu , Dandan Ding , Fengqing Zhu , Zhan Ma

While image generation with diffusion models has achieved a great success, generating images of higher resolution than the training size remains a challenging task due to the high computational cost. Current methods typically perform the…

计算机视觉与模式识别 · 计算机科学 2025-02-28 Zhengqiang Zhang , Ruihuang Li , Lei Zhang

Self-supervised representation learning methods often fail to learn subtle or complex features, which can be dominated by simpler patterns which are much easier to learn. This limitation is particularly problematic in applications to…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Lucas Farndale , Paul Henderson , Edward W Roberts , Ke Yuan

Representing images by compact hash codes is an attractive approach for large-scale content-based image retrieval. In most state-of-the-art hashing-based image retrieval systems, for each image, local descriptors are first aggregated as a…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Thanh-Toan Do , Khoa Le , Tuan Hoang , Huu Le , Tam V. Nguyen , Ngai-Man Cheung

We propose Deep Lossless Image Coding (DLIC), a full resolution learned lossless image compression algorithm. Our algorithm is based on a neural network combined with an entropy encoder. The neural network performs a density estimation on…

图像与视频处理 · 电气工程与系统科学 2022-07-13 Benjamin Lukas Cajus Barzen , Fedor Glazov , Jonas Geistert , Thomas Sikora

Image compression has been applied in the fields of image storage and video broadcasting. However, it's formidably tough to distinguish the subtle quality differences between those distorted images generated by different algorithms. In this…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Kaiqun Wu , Xiaoling Jiang , Rui Yu , Yonggang Luo , Tian Jiang , Xi Wu , Peng Wei

Grid-based structures are commonly used to encode explicit features for graphics primitives such as images, signed distance functions (SDF), and neural radiance fields (NeRF) due to their simple implementation. However, in $n$-dimensional…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Yibo Wen , Yunfan Yang

Representation of data on mixed variables, numerical and categorical types to get suitable feature map is a challenging task as important information lies in a complex non-linear manifold. The feature transformation should be able to…

机器学习 · 计算机科学 2020-09-22 Saswata Sahoo , Souradip Chakraborty

Decoding visual stimuli from neural responses recorded by functional Magnetic Resonance Imaging (fMRI) presents an intriguing intersection between cognitive neuroscience and machine learning, promising advancements in understanding human…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Jingyuan Sun , Mingxiao Li , Zijiao Chen , Yunhao Zhang , Shaonan Wang , Marie-Francine Moens

State-of-the-art crowd counting models follow an encoder-decoder approach. Images are first processed by the encoder to extract features. Then, to account for perspective distortion, the highest-level feature map is fed to extra components…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Yiming Ma , Victor Sanchez , Tanaya Guha

In this paper, we present a novel deep image clustering approach termed PICI, which enforces the partial information discrimination and the cross-level interaction in a joint learning framework. In particular, we leverage a Transformer…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Hai-Xin Zhang , Dong Huang , Hua-Bao Ling , Guang-Yu Zhang , Wei-jun Sun , Zi-hao Wen

Multi-view image compression plays a critical role in 3D-related applications. Existing methods adopt a predictive coding architecture, which requires joint encoding to compress the corresponding disparity as well as residual information.…

图像与视频处理 · 电气工程与系统科学 2023-04-13 Xinjie Zhang , Jiawei Shao , Jun Zhang

Fine-grained recognition involves the classification of images from subordinate macro-categories, and it is challenging due to small inter-class differences. To overcome this, most methods perform discriminative feature selection enabled by…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Edwin Arkel Rios , Min-Chun Hu , Bo-Cheng Lai

In image retrieval, deep local features learned in a data-driven manner have been demonstrated effective to improve retrieval performance. To realize efficient retrieval on large image database, some approaches quantize deep local features…

图像与视频处理 · 电气工程与系统科学 2021-12-14 Hui Wu , Min Wang , Wengang Zhou , Yang Hu , Houqiang Li

In recent years, learned image compression (LIC) methods have achieved significant performance improvements. However, obtaining a more compact latent representation and reducing the impact of quantization errors remain key challenges in the…

图像与视频处理 · 电气工程与系统科学 2025-02-24 Shiqi Jiang , Hui Yuan , Shuai Li , Raouf Hamzaoui , Xu Wang , Junyan Huo

The real world exhibits rich structure and detail across many scales of observation. It is difficult, however, to capture and represent a broad spectrum of scales using ordinary images. We devise a novel paradigm for learning a…

The enhanced Deep Hierarchical Video Compression-DHVC 2.0-has been introduced. This single-model neural video codec operates across a broad range of bitrates, delivering not only superior compression performance to representative methods…

图像与视频处理 · 电气工程与系统科学 2024-10-04 Ming Lu , Zhihao Duan , Wuyang Cong , Dandan Ding , Fengqing Zhu , Zhan Ma

Acceleration methods for diffusion models (e.g., token merging or downsampling) typically optimize synthesis quality under reduced compute, yet often ignore discriminative capacity. We revisit token compression with a joint objective and…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Jiacheng Liu , Shengkun Tang , Jiacheng Cui , Dongkuan Xu , Zhiqiang Shen

In this work, we interpret the representations of multi-object scenes in vision encoders through the lens of structured representations. Structured representations allow modeling of individual objects distinctly and their flexible use based…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Tarun Khajuria , Braian Olmiro Dias , Marharyta Domnich , Jaan Aru