ICCV 2025 Papers

Traditional deep networks struggle to acquire shape-fair representations due to their high expressivity. Kolmogorov-Arnold Networks (KANs) are promising candidates as they learn nonlinearities directly, a property that makes them more adaptive. However, KANs perform suboptimally in terms of shape-fairness because of unconstrained nonlinearities, a limitation we demonstrate for the first time. On the other hand, shape-fair networks reside on a neuromanifold of low-degree. Motivated by this, we investigate neuromanifold regularization of KANs to enable learning of shape-fair feature representations. The proposed method, NeuroManifold Regularized-KANs, is a novel regularization that addresses failure modes during the acquisition of local and global shape cues, separately. This is done by constraining the degree of the neuromanifolds of two jointly trained feature extractors. Additionally, we propose a novel Style Decorrelation Loss that promotes decorrelation of intermediate representations. Our experiments demonstrate that NMR-KAN improves shape bias over baseline convolutional KANs by 14.8% while also providing robustness under image corruptions and adversarial attacks. Code is avaliable at: http://www.github.com/kaptres/NMR-KAN

Vector graphics are essential in design, providing artists with a versatile medium for creating resolution-independent and highly editable visual content. Recent advancements in vision-language and diffusion models have fueled interest in text-to-vector graphics generation. However, existing approaches often suffer from over-parameterized outputs or treat the layered structure -- a core feature of vector graphics -- as a secondary goal, diminishing their practical use. Recognizing the importance of layered SVG representations, we propose NeuralSVG, an implicit neural representation for generating vector graphics from text prompts. Inspired by Neural Radiance Fields (NeRFs), NeuralSVG encodes the entire scene into the weights of a small MLP network, optimized using Score Distillation Sampling (SDS). To encourage a layered structure in the generated SVG, we introduce a dropout-based regularization technique that strengthens the standalone meaning of each shape. We additionally demonstrate that utilizing a neural representation provides an added benefit of inference-time control, enabling users to dynamically adapt the generated SVG based on user-provided inputs, all with a single learned representation. Through extensive qualitative and quantitative evaluations, we demonstrate that NeuralSVG outperforms existing methods in generating structured and flexible SVG.

The Dichromatic Reflection Model (DRM), a widely used physical image formation model, has been extensively applied to specular highlight removal. However, traditional DRM solvers fail to effectively recover the missing content underneath specular highlights and are prone to producing visual artifacts. Additionally, existing deep learning-based methods do not fully exploit the full set of the DRM variables. Instead, they typically learn to translate an input image into its diffuse image (and specular residue image). As a result, their performance remains somewhat limited. To overcome these limitations, we propose a neural DRM solver for specular highlight removal. Our pipeline consists of three networks: Highlight Detection Network (HDNet), Alpha-Chrom Estimation Network (ACENet), and Refinement Network (RNet). Specifically, HDNet is first used to detect specular highlights. Meanwhile, guided by multi-level contextual contrasted features from HDNet, ACENet estimates the DRM variables. These estimated variables are then used by our reconstruction models to generate the specular-free and specular residue images. Finally, we introduce RNet, a model-free network, to further refine the results. Extensive experiments on existing datasets and our collected images demonstrate that our neural solver is superior to previous methods.

Gaussian splatting techniques have shown promising results in novel view synthesis, achieving high fidelity and efficiency. However, their high reconstruction quality comes at the cost of requiring a large number of primitives. We identify this issue as stemming from the entanglement of geometry and appearance in Gaussian Splatting. To address this, we introduce a neural shell texture, a global representation that encodes texture information around the surface. We use Gaussian primitives as both a geometric representation and texture field samplers, efficiently splatting texture features into image space. Our evaluation demonstrates that this disentanglement enables high parameter efficiency, fine texture detail reconstruction, and easy textured mesh extraction, all while using significantly fewer primitives.

We propose a neural inverse rendering approach that jointly reconstructs geometry, spatially varying reflectance, and lighting conditions from multi-view images captured under varying directional lighting. Unlike prior multi-view photometric stereo methods that require light calibration or intermediate cues such as per-view normal maps, our method jointly optimizes all scene parameters from raw images in a single stage. We represent both geometry and reflectance as neural implicit fields and apply shadow-aware volume rendering. A spatial network first predicts the signed distance and a reflectance latent code for each scene point. A reflectance network then estimates reflectance values conditioned on the latent code and angularly encoded surface normal, view, and light directions. The proposed method outperforms state-of-the-art normal-guided approaches in shape and lighting estimation accuracy, generalizes to view-unaligned multi-light images, and handles objects with challenging geometry and reflectance.

Among structured-light methods, the phase-shifting approach enables high-resolution and high-accuracy measurements using a minimum of three patterns. However, its performance is significantly affected when dynamic and complex-shaped objects are measured, as motion artifacts and phase inconsistencies can degrade accuracy. In this study, we propose an enhanced phase-shifting method that incorporates neural inverse rendering to enable the 3D measurement of moving objects. To effectively capture object motion, we introduce a displacement field into the rendering model, which accurately represents positional changes and mitigates motion-induced distortions. Additionally, to achieve high-precision reconstruction with fewer phase-shifting patterns, we design a multiview-rendering framework that utilizes multiple cameras in conjunction with a single projector. Comparisons with state-of-the-art methods and various ablation studies demonstrated that our method accurately reconstructs the shapes of moving objects, even with a small number of patterns, using only simple, well-known phase-shifting patterns.

We present NeCGS, the first neural compression paradigm, which can compress a geometry set encompassing thousands of detailed and diverse 3D mesh models by up to 900 times with high accuracy and preservation of detailed geometric structures. Specifically, we first propose TSDF-Def, a new implicit representation that is capable of accurately representing irregular 3D mesh models with various structures into regular 4D tensors of uniform and compact size, where 3D surfaces can be extracted through the deformable marching cubes. Then we construct a quantization-aware auto-decoder network architecture to regress these 4D tensors to explore the local geometric similarity within each shape and across different shapes for redundancy removal, resulting in more compact representations, including an embedded feature of a smaller size associated with each 3D model and a network parameter shared by all models. We finally encode the resulting features and network parameters into bitstreams through entropy coding. Besides, our NeCGS can handle the dynamic scenario well, where new 3D models are constantly added to a compressed set. Extensive experiments and ablation studies demonstrate the significant advantages of our NeCGS over state-of-the-art methods both quantitatively and qualitatively. The source code is publicly available at https://github.com/rsy6318/NeCGS.

Neural Architecture Search (NAS) has gained significant attention in personalized federated learning (PFL) due to its ability to automatically design tailored models for individual clients. While most existing NAS approaches for PFL perform architecture search on the server side, client-side NAS--where architectures are optimized locally on clients--offers stronger privacy protection by eliminating the need to transmit sensitive model information. However, this paradigm remains underexplored and often suffers from suboptimal average client performance, primarily due to two limitations: (1) Inefficient client-side search strategies caused by data isolation and restricted access to local architectures across clients, and (2) slow supernet convergence arising from server aggregation and local supernet training. To address these challenges, we propose a Personalized Federated Stochastic Differential Equation-based NAS (PerFedSDE-NAS). To achieve effective local search, each client employs a guided diffusion model to generate promising personalized architectures tailored to local data characteristics, while a performance predictor based on radial basis functions is used to select only the most promising subset of architectures for evaluation. To accelerate supernet convergence, each client maintains a supernet with an archive-driven training mechanism, and a novel model aggregation strategy is proposed to further enhance weight convergence during FL rounds. We validate PerFedSDE-NAS across three NAS search spaces, including convolutional neural networks and transformers, demonstrating its broad applicability. Compared to traditional fixed-model and NAS-based PFL approaches, our method achieves the state-of-the-art performance.

Most publicly accessible remote sensing data suffer from low resolution, limiting their practical applications. To address this, we propose a diffusion model guided by neural operators (NO) for continuous remote sensing image super-resolution (NeurOp-Diff). Neural operators are used to learn resolution representations at arbitrary scales, encoding low-resolution (LR) images into high-dimensional features, which are then used as prior conditions to guide the diffusion model for denoising. This effectively addresses the artifacts and excessive smoothing issues present in existing super-resolution (SR) methods, enabling the generation of high-quality, continuous super-resolution images. Specifically, we adjust the super-resolution scale by a scaling factor (s), allowing the model to adapt to different super-resolution magnifications. Furthermore, experiments on multiple datasets demonstrate the effectiveness of NeurOp-Diff. Our code is available at https://github.com/zerono000/NeurOp-Diff.

Quad meshes play a crucial role in computer graphics applications, yet automatically generating high-quality quad meshes remains challenging. Traditional quadrangulation approaches rely on local geometric features and manual constraints, often producing suboptimal mesh layouts that fail to capture global shape semantics. We introduce NeuFrameQ, a novel learning-based framework for scalable and generalizable mesh quadrangulation via frame field prediction. We first create a large-scale dataset of high-quality quad meshes with various shapes to serve as priors of domain knowledge. Empowered by this dataset, we employ a connectivity-agnostic learning approach that operates on point clouds with normals, enabling robust processing of complex geometries. By decomposing frame field prediction into direction regression and magnitude estimation tasks, we effectively handle the ill-posed nature in frame field estimation. We also employ the polyvector representation and attention mechanism in both tasks to handle the inherent ambiguities in frame field representation. Extensive experiments demonstrate that NeuFrameQ produces high-quality quad meshes with superior semantic alignment, also for geometries derived from neural fields. Our method significantly advances the state of the art in automatic quad mesh generation, bridging the gap between neural content creation and production-ready geometric assets.

Recent advancements in Vision-Language Models like CLIP have enabled zero-shot OOD detection by leveraging both image and textual label information. Among these, negative label-based methods such as NegLabel and CSP have shown promising results by utilizing a lexicon of words to define negative labels for distinguishing OOD samples. However, these methods suffer from detecting in-distribution samples as OOD due to negative labels that are subcategories of in-distribution labels or proper nouns. They also face limitations in handling images that match multiple in-distribution and negative labels. We propose NegRefine, a novel negative label refinement framework for zero-shot OOD detection. By introducing a filtering mechanism to exclude subcategory labels and proper nouns from the negative label set and incorporating a multi-matching-aware scoring function that dynamically adjusts the contributions of multiple labels matching an image, NegRefine ensures a more robust separation between in-distribution and OOD samples. We evaluate NegRefine on large-scale benchmarks, including ImageNet-1K. The code is available at https://github.com/ah-ansari/NegRefine.

We introduce NeRF-GS, a novel framework that jointly optimizes Neural Radiance Fields (NeRF) and 3D Gaussian Splatting (3DGS). This framework leverages the inherent continuous spatial representation of NeRF to mitigate several limitations of 3DGS, including sensitivity to Gaussian initialization, limited spatial awareness, and weak inter-Gaussian correlations, thereby enhancing its performance. In NeRF-GS, we revisit the design of 3DGS and progressively align its spatial features with NeRF, enabling both representations to be optimized within the same scene through shared 3D spatial information. We further address the formal distinctions between the two approaches by optimizing residual vectors for both implicit features and Gaussian positions to enhance the personalized capabilities of 3DGS. Experimental results on benchmark datasets show that NeRF-GS surpasses existing methods and achieves state-of-the-art performance. This outcome confirms that NeRF and 3DGS are complementary rather than competing, offering new insights into hybrid approaches that combine 3DGS and NeRF for efficient 3D scene representation.

In this work we concentrate on the task of goal-oriented Vision-and-Language Navigation (VLN). Existing methods often make decisions based on historical information, overlooking the future implications and long-term outcomes of the actions. In contrast, we aim to develop a foresighted agent. Specifically, we draw upon Q-learning to train a Q-model using large-scale unlabeled trajectory data, in order to learn the general knowledge regarding the layout and object relations within indoor scenes. This model can generate a Q-feature, analogous to the Q-value in traditional Q-network, for each candidate action, which describes the potential future information that may be observed after taking the specific action. Subsequently, a cross-modal future encoder integrates the task-agnostic Q-feature with navigation instructions to produce a set of action scores reflecting future prospects. These scores, when combined with the original scores based on history, facilitate an A*-style searching strategy to effectively explore the regions that are more likely to lead to the destination. Extensive experiments conducted on widely used goal-oriented VLN datasets validate the effectiveness of the proposed method.

Vision-and-Language Navigation in Continuous Environments (VLN-CE) requires agents to execute sequential navigation actions in complex environments guided by natural language instructions. Current approaches often struggle with generalizing to novel environments and adapting to ongoing changes during navigation. Inspired by human cognition, we present NavMorph, a self-evolving world model framework that enhances environmental understanding and decision-making in VLN-CE tasks. NavMorph employs compact latent representations to model environmental dynamics, equipping agents with foresight for adaptive planning and policy refinement. By integrating a novel Contextual Evolution Memory, NavMorph leverages scene-contextual information to support effective navigation while maintaining online adaptability. Extensive experiments demonstrate that our method achieves notable performance improvements on popular VLN-CE benchmarks. Code is available in the Supplementary Material.

Triangle meshes are fundamental to 3D applications. Current automatic mesh generation methods typically rely on intermediate representations that lack the continuous surface quality inherent to meshes. Converting these representations into meshes produces dense, suboptimal outputs. Although recent autoregressive approaches demonstrate promise in directly modeling mesh vertices and faces, they are constrained by the limitation in face count, scalability, and structural fidelity.To address these challenges, we propose Nautilus, a locality-aware autoencoder for artist-like mesh generation that leverages the local properties of manifold meshes to achieve structural fidelity and efficient representation. Our approach introduces a novel tokenization algorithm that preserves face proximity relationships and compresses sequence length through locally shared vertices and edges, enabling the generation of meshes with an unprecedented scale of up to 5,000 faces. Furthermore, we develop a Dual-stream Point Conditioner that captures fine-grained geometry, ensuring global consistency and local structural fidelity. Our experiments demonstrate that Nautilus significantly outperforms existing methods in generation quality.

Dynamic garment reconstruction from monocular video is an important yet challenging task due to the complex dynamics and unconstrained nature of the garments. Recent advancements in neural rendering have enabled high-quality geometric reconstruction with image/video supervision. However, implicit representation methods that use volume rendering often provide smooth geometry and fail to model high-frequency details. While template reconstruction methods model explicit geometry, they use vertex displacement for deformation which results in artifacts. Addressing these limitations, we propose NGD, a Neural Gradient-based Deformation method to reconstruct dynamically evolving textured garments from monocular videos. Additionally, we propose a novel adaptive remeshing strategy for modeling dynamically evolving surfaces like wrinkles and pleats of the skirt, leading to high-quality reconstruction. Finally, we learn dynamic texture maps to capture per-frame lighting and shadow effects. We provide extensive qualitative and quantitative evaluations to demonstrate significant improvements over existing SOTA methods and provide high-quality garment reconstructions.

Extracting tubular structures from images is a widespread and challenging task in computer vision. To explore these continuous structures, iterative tracing methods offer a promising direction. However, in scenes with dense and blurred branches, existing tracing methods tend to jump to adjacent branches during tracing process, leading a significant topological mistake. The reason of this shortcoming is that the tracing model only focuses on the estimation of discrete nodes and ignores their connection attribution. To solve this problem, we introduce NETracer, a topology-aware iterative tracing method to improve the continuity and topological accuracy. In our approach, a node-edge estimation network with local connectivity loss is trained to produce the future nodes and their connective edges. Then, a geodesic distance-based search strategy is employed with the help of predicted edge cues to trace the future branches more accurately. Additionally, to comprehensively assess the effect of the tracing model, an new tracing metric is proposed to evaluate the local accuracy, continuity, and topological correctness of the traced branches. We demonstrate that our proposed method outperforms existing segmentation and tracing methods on five 2D road, vessel and 3D neuron datasets.