Computer Vision Arxiv Daily 2025.01.16

1. Image Processing

2. Video Processing

2-001 RepVideo: Rethinking Cross-Layer Representation for Video Generation

Video generation has achieved remarkable progress with the introduction of diffusion models, which have significantly improved the quality of generated videos. In this paper, we initially investigate the characteristics of features in intermediate layers, finding substantial variations in attention maps across different layers. These variations lead to unstable semantic representations and contribute to cumulative differences between features, which ultimately reduce the similarity between adjacent frames and negatively affect temporal coherence. To address this, we propose RepVideo, an enhanced representation framework for text-to-video diffusion models.

2-002 Vchitect-2.0: Parallel Transformer for Scaling Up Video Diffusion Models

We present Vchitect-2.0, a parallel transformer architecture designed to scale up video diffusion models for large-scale text-to-video generation. The overall Vchitect-2.0 system has several key designs. (1) By introducing a novel Multimodal Diffusion Block, our approach achieves consistent alignment between text descriptions and generated video frames, while maintaining temporal coherence across sequences. (2) To overcome memory and computational bottlenecks, we propose a Memory-efficient Training framework that incorporates hybrid parallelism and other memory reduction techniques, enabling efficient training of long video sequences on distributed systems. (3) Additionally, our enhanced data processing pipeline ensures the creation of Vchitect T2V DataVerse, a high-quality million-scale training dataset through rigorous annotation and aesthetic evaluation.

2-003 DynamicFace: High-Quality and Consistent Video Face Swapping using Composable 3D Facial Priors

Face swapping transfers the identity of a source face to a target face while retaining the attributes like expression, pose, hair, and background of the target face. We propose a novel method DynamicFace that leverages the power of diffusion model and plug-and-play temporal layers for video face swapping. First, we introduce four fine-grained face conditions using 3D facial priors. All conditions are designed to be disentangled from each other for precise and unique control. Then, we adopt Face Former and ReferenceNet for high-level and detailed identity injection.

2-004 Joint Learning of Depth and Appearance for Portrait Image Animation

2D portrait animation has experienced significant advancements in recent years. In our work, we propose to jointly learn the visual appearance and depth simultaneously in a diffusion-based portrait image generator. Our method embraces the end-to-end diffusion paradigm and introduces a new architecture suitable for learning this conditional joint distribution, consisting of a reference network and a channel-expanded diffusion backbone.

3. 3D Processing

3-001 3D Gaussian Splatting with Normal Information for Mesh Extraction and Improved Rendering

Differentiable 3D Gaussian splatting has emerged as an efficient and flexible rendering technique for representing complex scenes from a collection of 2D views and enabling high-quality real-time novel-view synthesis. However, its reliance on photometric losses can lead to imprecisely reconstructed geometry and extracted meshes, especially in regions with high curvature or fine detail. We propose a novel regularization method using the gradients of a signed distance function estimated from the Gaussians, to improve the quality of rendering while also extracting a surface mesh.

3-002 Scalable and High-Quality Neural Implicit Representation for 3D Reconstruction

In this paper, we propose a versatile, scalable and high-quality neural implicit representation to address these issues. We integrate a divide-and-conquer approach into the neural SDF-based reconstruction. Specifically, we model the object or scene as a fusion of multiple independent local neural SDFs with overlapping regions. The construction of our representation involves three key steps: (1) constructing the distribution and overlap relationship of the local radiance fields based on object structure or data distribution, (2) relative pose registration for adjacent local SDFs, and (3) SDF blending.

4. LLM & VLM

4-001 Instruction-Guided Fusion of Multi-Layer Visual Features in Large Vision-Language Models

Large Vision-Language Models (LVLMs) have achieved significant success in multimodal tasks by combining pre-trained vision encoders and large language models. However, current LVLMs mainly rely on features from the final layers of the vision encoder, neglecting complementary information in shallower layers. While recent methods have explored multi-layer features, they are often task-agnostic. We investigate the contributions of visual features from different encoder layers across 18 benchmarks and 6 task categories. Our results show that multi-layer features provide complementary strengths with varying task dependencies, and uniform fusion performs suboptimally. Based on these findings, we propose an instruction-guided vision aggregator that dynamically integrates multi-layer features based on textual instructions, without increasing the number of visual tokens.

5. Embodied AI

6. Dataset

er of visual tokens.

5. Embodied AI

6. Dataset

7. Survey

相关推荐
热爱运维的小七4 分钟前
从数据透视到AI分析,用四层架构解决运维难题
运维·人工智能·架构
卧式纯绿16 分钟前
每日文献(八)——Part one
人工智能·yolo·目标检测·计算机视觉·目标跟踪·cnn
巷95522 分钟前
OpenCV图像形态学:原理、操作与应用详解
人工智能·opencv·计算机视觉
深蓝易网1 小时前
为什么制造企业需要用MES管理系统升级改造车间
大数据·运维·人工智能·制造·devops
xiangzhihong81 小时前
Amodal3R ,南洋理工推出的 3D 生成模型
人工智能·深度学习·计算机视觉
阿linlin1 小时前
OpenCV--图像预处理学习01
opencv·学习·计算机视觉
狂奔solar1 小时前
diffusion-vas 提升遮挡区域的分割精度
人工智能·深度学习
资源大全免费分享1 小时前
MacOS 的 AI Agent 新星,本地沙盒驱动,解锁 macOS 操作新体验!
人工智能·macos·策略模式
跳跳糖炒酸奶2 小时前
第四章、Isaacsim在GUI中构建机器人(2):组装一个简单的机器人
人工智能·python·算法·ubuntu·机器人