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In this paper, we present experimental results obtained from retraining the last layer of the Inception v3 model in classifying images of human faces into one of five basic face shapes. The accuracy of the retrained Inception v3 model was…

Computer Vision and Pattern Recognition · Computer Science 2019-11-20 Adonis Emmanuel Tio

We introduce a novel neural volumetric pose feature, termed PoseMap, designed to enhance camera localization by encapsulating the information between images and the associated camera poses. Our framework leverages an Absolute Pose…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Jingyu Lin , Jiaqi Gu , Bojian Wu , Lubin Fan , Renjie Chen , Ligang Liu , Jieping Ye

Facial Expression Recognition (FER) is a classification task that points to face variants. Hence, there are certain affinity features between facial expressions, receiving little attention in the FER literature. Convolution padding, despite…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Jiawei Shi , Songhao Zhu , Zhiwei Liang

Differentiable rendering aims to compute the derivative of the image rendering function with respect to the rendering parameters. This paper presents a novel algorithm for 6-DoF pose estimation through gradient-based optimization using a…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Ramchander Rao Bhaskara , Roshan Thomas Eapen , Manoranjan Majji

Estimating pose of the head is an important preprocessing step in many pattern recognition and computer vision systems such as face recognition. Since the performance of the face recognition systems is greatly affected by the poses of the…

Computer Vision and Pattern Recognition · Computer Science 2012-05-15 Mohammad Tofighi , Hashem Kalbkhani , Mahrokh G. Shayesteh , Mehdi Ghasemzadeh

Glacier calving front position (CFP) is an important glaciological variable. Traditionally, delineating the CFPs has been carried out manually, which was subjective, tedious and expensive. Automating this process is crucial for continuously…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Amirabbas Davari , Christoph Baller , Thorsten Seehaus , Matthias Braun , Andreas Maier , Vincent Christlein

How to extract significant point cloud features and estimate the pose between them remains a challenging question, due to the inherent lack of structure and ambiguous order permutation of point clouds. Despite significant improvements in…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Zhu Xu , Zhengyao Bai , Huijie Liu , Qianjie Lu , Shenglan Fan

Facial landmark localization is a fundamental module for pose-invariant face recognition. The most common approach for facial landmark detection is cascaded regression, which is composed of two steps: feature extraction and facial shape…

Computer Vision and Pattern Recognition · Computer Science 2018-04-04 Yuhang Wu , Shishir K. Shah , Ioannis A. Kakadiaris

Surgical treatment of complicated knee fractures is guided by real-time imaging using a mobile C-arm. Immediate and continuous control is achieved via 2D anatomy-specific standard views that correspond to a specific C-arm pose relative to…

Image and Video Processing · Electrical Eng. & Systems 2023-05-29 Lisa Kausch , Sarina Thomas , Holger Kunze , Jan Siad El Barbari , Klaus Maier-Hein

Face registration deforms a template mesh to closely fit a 3D face scan, the quality of which commonly degrades in non-skin regions (e.g., hair, beard, accessories), because the optimized template-to-scan distance pulls the template mesh…

Face parsing assigns pixel-wise semantic labels as the face representation for computers, which is the fundamental part of many advanced face technologies. Compared with 2D face parsing, 3D face parsing shows more potential to achieve…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Wenyuan Sun , Ping Zhou , Yangang Wang , Zongpu Yu , Jing Jin , Guangquan Zhou

This paper proposes a sparse regression method that continuously interpolates between Forward Stepwise selection (FS) and the LASSO. When tuned appropriately, our solutions are much sparser than typical LASSO fits but, unlike FS fits,…

Methodology · Statistics 2024-11-20 Ivy Zhang , Robert Tibshirani

We present a novel 3D face reconstruction technique that leverages sparse photometric stereo (PS) and latest advances on face registration/modeling from a single image. We observe that 3D morphable faces approach provides a reasonable…

Computer Vision and Pattern Recognition · Computer Science 2017-11-30 Xuan Cao , Zhang Chen , Anpei Chen , Xin Chen , Cen Wang , Jingyi Yu

Sensitivity to severe occlusion and large view angles limits the usage scenarios of the existing monocular 3D dense face alignment methods. The state-of-the-art 3DMM-based method, directly regresses the model's coefficients, underutilizing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-22 Heyuan Li , Bo Wang , Yu Cheng , Mohan Kankanhalli , Robby T. Tan

Fine-tuning is widely applied in image classification tasks as a transfer learning approach. It re-uses the knowledge from a source task to learn and obtain a high performance in target tasks. Fine-tuning is able to alleviate the challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Xuyang Shen , Jo Plested , Sabrina Caldwell , Yiran Zhong , Tom Gedeon

In this paper, we present a decision level fused local Morphological Pattern Spectrum(PS) and Local Binary Pattern (LBP) approach for an efficient shape representation and classification. This method makes use of Earth Movers Distance(EMD)…

Computer Vision and Pattern Recognition · Computer Science 2015-04-28 B. H. Shekar , Bharathi Pilar

Facial pose estimation has gained a lot of attentions in many practical applications, such as human-robot interaction, gaze estimation and driver monitoring. Meanwhile, end-to-end deep learning-based facial pose estimation is becoming more…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Zhaoxiang Liu , Zezhou Chen , Jinqiang Bai , Shaohua Li , Shiguo Lian

Face alignment, which fits a face model to an image and extracts the semantic meanings of facial pixels, has been an important topic in CV community. However, most algorithms are designed for faces in small to medium poses (below 45…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Xiangyu Zhu , Zhen Lei , Xiaoming Liu , Hailin Shi , Stan Z. Li

We propose a simple approach to visual alignment, focusing on the illustrative task of facial landmark estimation. While most prior work treats this as a regression problem, we instead formulate it as a discrete $K$-way classification task,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-15 Mengtian Li , Laszlo Jeni , Deva Ramanan

Digital human animation relies on high-quality 3D models of the human face -- rigs. A face rig must be accurate and, at the same time, fast to compute. One of the most common rigging models is the blendshape model. We present a novel…