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Accurate and reliable 3D detection is vital for many applications including autonomous driving vehicles and service robots. In this paper, we present a flexible and high-performance 3D detection framework, named MPPNet, for 3D temporal…

计算机视觉与模式识别 · 计算机科学 2022-09-05 Xuesong Chen , Shaoshuai Shi , Benjin Zhu , Ka Chun Cheung , Hang Xu , Hongsheng Li

Without deploying face anti-spoofing countermeasures, face recognition systems can be spoofed by presenting a printed photo, a video, or a silicon mask of a genuine user. Thus, face presentation attack detection (PAD) plays a vital role in…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Usman Muhammad , Mourad Oussalah

In indoor scenes, the diverse distribution of object locations and scales makes the visual 3D perception task a big challenge. Previous works (e.g, NeRF-Det) have demonstrated that implicit representation has the capacity to benefit the…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Chi Huang , Xinyang Li , Yansong Qu , Changli Wu , Xiaofan Li , Shengchuan Zhang , Liujuan Cao

With the rise in manipulated media, deepfake detection has become an imperative task for preserving the authenticity of digital content. In this paper, we present a novel multi-modal audio-video framework designed to concurrently process…

计算机视觉与模式识别 · 计算机科学 2023-09-14 Aaditya Kharel , Manas Paranjape , Aniket Bera

In the current salient object detection network, the most popular method is using U-shape structure. However, the massive number of parameters leads to more consumption of computing and storage resources which are not feasible to deploy on…

计算机视觉与模式识别 · 计算机科学 2021-12-21 Bin Zhang , Yang Wu , Xiaojing Zhang , Ming Ma

Multimodal 3D object detection based on deep neural networks has indeed made significant progress. However, it still faces challenges due to the misalignment of scale and spatial information between features extracted from 2D images and…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Bonan Ding , Jin Xie , Jing Nie , Jiale Cao

3D Gaussian Splatting (3DGS) enables high-quality real-time 3D rendering but faces challenges in efficiently scaling to ultra-dense scenes and high-resolution due to computational bottlenecks that limit its use in latency-sensitive…

图形学 · 计算机科学 2026-05-13 Yibo Zhao , Fan Gao , Youcheng Cai , Ligang Liu

Point cloud sequences are commonly used to accurately detect 3D objects in applications such as autonomous driving. Current top-performing multi-frame detectors mostly follow a Detect-and-Fuse framework, which extracts features from each…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Chenhang He , Ruihuang Li , Yabin Zhang , Shuai Li , Lei Zhang

Accurate and robust LiDAR 3D object detection is essential for comprehensive scene understanding in autonomous driving. Despite its importance, LiDAR detection performance is limited by inherent constraints of point cloud data, particularly…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Rui Yu , Runkai Zhao , Cong Nie , Heng Wang , HuaiCheng Yan , Meng Wang

In recent years, deep convolutional neural networks (CNN) have significantly advanced face detection. In particular, lightweight CNNbased architectures have achieved great success due to their lowcomplexity structure facilitating real-time…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Guangtao Wang , Jun Li , Zhijian Wu , Jianhua Xu , Jifeng Shen , Wankou Yang

Facial motion retargeting is an important problem in both computer graphics and vision, which involves capturing the performance of a human face and transferring it to another 3D character. Learning 3D morphable model (3DMM) parameters from…

计算机视觉与模式识别 · 计算机科学 2019-03-01 Bindita Chaudhuri , Noranart Vesdapunt , Baoyuan Wang

The rapid advancement of deepfake generation techniques poses significant threats to public safety and causes societal harm through the creation of highly realistic synthetic facial media. While existing detection methods demonstrate…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Jianfeng Liao , Yichen Wei , Raymond Chan Ching Bon , Shulan Wang , Kam-Pui Chow , Kwok-Yan Lam

As a pioneering work, PointContrast conducts unsupervised 3D representation learning via leveraging contrastive learning over raw RGB-D frames and proves its effectiveness on various downstream tasks. However, the trend of large-scale…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Xiaoyang Wu , Xin Wen , Xihui Liu , Hengshuang Zhao

Face representation learning solutions have recently achieved great success for various applications such as verification and identification. However, face recognition approaches that are based purely on RGB images rely solely on intensity…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Hardik Uppal , Alireza Sepas-Moghaddam , Michael Greenspan , Ali Etemad

It has been well recognized that fusing the complementary information from depth-aware LiDAR point clouds and semantic-rich stereo images would benefit 3D object detection. Nevertheless, it is not trivial to explore the inherently unnatural…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Hanqi Zhu , Jiajun Deng , Yu Zhang , Jianmin Ji , Qiuyu Mao , Houqiang Li , Yanyong Zhang

Understanding 3D scenes is a crucial challenge in computer vision research with applications spanning multiple domains. Recent advancements in distilling 2D vision-language foundation models into neural fields, like NeRF and 3DGS, enable…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Zihan Gao , Lingling Li , Licheng Jiao , Fang Liu , Xu Liu , Wenping Ma , Yuwei Guo , Shuyuan Yang

Despite significant progress in deep learning-based optical flow methods, accurately estimating large displacements and repetitive patterns remains a challenge. The limitations of local features and similarity search patterns used in these…

计算机视觉与模式识别 · 计算机科学 2024-01-02 Navid Eslami , Farnoosh Arefi , Amir M. Mansourian , Shohreh Kasaei

We propose a late-to-early recurrent feature fusion scheme for 3D object detection using temporal LiDAR point clouds. Our main motivation is fusing object-aware latent embeddings into the early stages of a 3D object detector. This feature…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Tong He , Pei Sun , Zhaoqi Leng , Chenxi Liu , Dragomir Anguelov , Mingxing Tan

Despite the significant progress made by deep learning in natural image matting, there has been so far no representative work on deep learning for video matting due to the inherent technical challenges in reasoning temporal domain and lack…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Yanan Sun , Guanzhi Wang , Qiao Gu , Chi-Keung Tang , Yu-Wing Tai

In this work we propose 3D-FFS, a novel approach to make sensor fusion based 3D object detection networks significantly faster using a class of computationally inexpensive heuristics. Existing sensor fusion based networks generate 3D region…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Aniruddha Ganguly , Tasin Ishmam , Khandker Aftarul Islam , Md Zahidur Rahman , Md. Shamsuzzoha Bayzid