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检索条件"任意字段=2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, CVPR 2003"

共 6678 条记录，以下是1361-1370 订阅

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Pooling Faces: Template based Face recognition with Pooled Face Images 29

Pooling Faces: Template based Face Recognition with Pooled F...

引用

29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Hassner, Tal Masi, Iacopo Kim, Jungyeon Choi, Jongmoo Harel, Shai Natarajan, Prem Medioni, Gerard USC Inst Informat Sci Los Angeles CA 90007 USA Open Univ Israel Raanana Israel USC Inst Robot & Intelligent Syst Los Angeles CA USA

ISBN: (纸本)9781509014378

We propose a novel approach to template based face recognition. Our dual goal is to both increase recognition accuracy and reduce the computational and storage costs of template matching. To do this, we leverage on an approach which was proven effective in many other domains, but, to our knowledge, never fully explored for face images: average pooling of face photos. We show how (and why!) the space of a template's images can be partitioned and then pooled based on image quality and head pose and the effect this has on accuracy and template size. We perform extensive tests on the IJB-A and Janus CS2 template based face identification and verification benchmarks. These show that not only does our approach outperform published state of the art despite requiring far fewer cross template comparisons, but also, surprisingly, that image pooling performs on par with deep feature pooling.

关键词： Face recognition

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Towards Facial Expression recognition in the Wild: A New Database and Deep recognition System 29

Towards Facial Expression Recognition in the Wild: A New Dat...

引用

29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Peng, Xianlin Xia, Zhaoqiang Li, Lei Feng, Xiaoyi Northwestern Polytech Univ Sch Elect & Informat Xian Peoples R China

ISBN: (纸本)9781509014378

Automatic facial expression recognition (FER) plays an important role in many fields. However, most existing FER techniques are devoted to the tasks in the constrained conditions, which are different from actual emotions. To simulate the spontaneous expression, the number of samples in acted databases is usually small, which limits the ability of facial expression classification. In this paper, a novel database for natural facial expression is constructed leveraging the social images and then a deep model is trained based on the naturalistic dataset. An amount of social labeled images are obtained from the image search engines by using specific keywords. The algorithms of junk image cleansing are then utilized to remove the mislabeled images. Based on the collected images, the deep convolutional neural networks are learned to recognize these spontaneous expressions. Experiments show the advantages of the constructed dataset and deep approach.

关键词： Database systems

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Grouper: Optimizing Crowdsourced Face Annotations 29

Grouper: Optimizing Crowdsourced Face Annotations

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29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Adams, Jocelyn C. Allen, Kristen C. Miller, Tim Kalka, Nathan D. Jain, Anil K. Noblis Reston VA 20191 USA Michigan State Univ E Lansing MI 48824 USA

ISBN: (纸本)9781509014378

This study focuses on the problem of extracting consistent and accurate face bounding box annotations from crowdsourced workers. Aiming to provide benchmark datasets for facial recognition training and testing, we create a 'gold standard' set against which consolidated face bounding box annotations can be evaluated. An evaluation methodology based on scores for several features of bounding box annotations is presented and is shown to predict consolidation performance using information gathered from crowdsourced annotations. Based on this foundation, we present "Grouper," a method leveraging density-based clustering to consolidate annotations by crowd workers. We demonstrate that the proposed consolidation scheme, which should be extensible to any number of region annotation consolidations, improves upon metadata released with the IARPA Janus Benchmark-A. Finally, we compare FR performance using the originally provided IJB-A annotations and Grouper and determine that similarity to the gold standard as measured by our evaluation metric does predict recognition performance.

关键词： Face recognition

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Extended DISFA Dataset: Investigating Posed and Spontaneous Facial Expressions 29

Extended DISFA Dataset: Investigating Posed and Spontaneous ...

引用

29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Mavadati, Mohammad Sanger, Peyten Mahoor, Mohammad H. Univ Denver Dept Elect & Comp Engn 2390 S York St Denver CO 80208 USA

ISBN: (纸本)9781509014378

Automatic facial expression recognition (FER) is an important component of affect-aware technologies. Because of the lack of labeled spontaneous data, majority of existing automated FER systems were trained on posed facial expressions;however in real-world applications we deal with (subtle) spontaneous facial expression. This paper introduces an extension of DISFA, a previously released and well-accepted face dataset. Extended DISFA (DISFA+) has the following features: 1) it contains a large set of posed and spontaneous facial expressions data for a same group of individuals, 2) it provides the manually labeled frame-based annotations of 5-level intensity of twelve FACS facial actions, 3) it provides meta data (i.e. facial landmark points in addition to the self-report of each individual regarding every posed facial expression). This paper introduces and employs DISFA+, to analyze and compare temporal patterns and dynamic characteristics of posed and spontaneous facial expressions.

关键词： computer keyboards

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Towards Semantic Understanding of Surrounding Vehicular Maneuvers: A Panoramic vision-Based Framework for Real-World Highway Studies 29

Towards Semantic Understanding of Surrounding Vehicular Mane...

引用

29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Kristoffersen, Miklas S. Dueholm, Jacob V. Satzoda, Ravi K. Trivedi, Mohan M. Mogelmose, Andreas Moeslund, Thomas B. Univ Calif San Diego San Diego CA 92103 USA Aalborg Univ Aalborg Denmark

ISBN: (纸本)9781509014378

This paper proposes the use of multiple low-cost visual sensors to obtain a surround view of the ego-vehicle for semantic understanding. A multi-perspective view will assist the analysis of naturalistic driving studies (NDS), by automating the task of data reduction of the observed sequences into events. A user-centric vision-based framework is presented using a vehicle detector and tracker in each separate perspective. Multi-perspective trajectories are estimated and analyzed to extract 14 different events, including potential dangerous behaviors such as overtakes and cut-ins. The system is tested on ten sequences of real-world data collected on U.S. highways. The results show the potential use of multiple low-cost visual sensors for semantic understanding around the ego-vehicle.

关键词： Vehicles

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Fusing Aligned and Non-Aligned Face Information for Automatic Affect recognition in the Wild: A Deep Learning Approach 29

Fusing Aligned and Non-Aligned Face Information for Automati...

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29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Kim, Bo-Kyeong Dong, Suh-Yeon Roh, Jihyeon Kim, Geonmin Lee, Soo-Young Korea Adv Inst Sci & Technol Computat NeuroSyst Lab CNSL Daejeon South Korea

ISBN: (纸本)9781509014378

Face alignment can fail in real-world conditions, negatively impacting the performance of automatic facial expression recognition (FER) systems. In this study, we assume a realistic situation including non-alignable faces due to failures in facial landmark detection. Our proposed approach fuses information about non-aligned and aligned facial states, in order to boost FER accuracy and efficiency. Six experimental scenarios using discriminative deep convolutional neural networks (DCNs) are compared, and causes for performance differences are identified. To handle non-alignable faces better, we further introduce DCNs that learn a mapping from non-aligned facial states to aligned ones, alignment-mapping networks (AMNs). We show that AMNs represent geometric transformations of face alignment, providing features beneficial for FER. Our automatic system based on ensembles of the discriminative DCNs and the AMNs achieves impressive results on a challenging database for FER in the wild.

关键词： Mapping

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Embedded vision System for Atmospheric Turbulence Mitigation 29

Embedded Vision System for Atmospheric Turbulence Mitigation

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29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Deshmukh, Ajinkya Bhosale, Gaurav Medasani, Swarup Reddy, Karthik Hemanthakumar, P. Chandrasekhar, A. Kirankumar, P. Vijayasagar, K. Uurmi Syst Pvt Ltd Hyderabad Andhra Pradesh India

ISBN: (纸本)9781509014378

Outdoor surveillance systems that involve farfield operations often encounter atmospheric turbulence perturbations due to a series of randomized reflections and refraction effecting incoming light rays. The resulting distortions make it hard to discriminate between true moving objects and turbulence induced motion. Current algorithms are not effective in detecting true moving objects in the scene and also rely on computationally complex warping methods. In this paper, we describe a real time embedded solution connected with traditional cameras to both rectify turbulence distortions and reliably detect and track true moving targets. Our comparisons with other methods shows better turbulence rectification with less false and miss detections. FPGA-DSP based embedded realization of our algorithm achieves nearly 15x speed-up along with lesser memory requirement over a quad core PC implementation. The proposed system is suitable for persistence surveillance systems and optical sight devices.

关键词： Atmospheric turbulence

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Real-Time Face Identification via CNN and Boosted Hashing Forest 29

Real-Time Face Identification via CNN and Boosted Hashing Fo...

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29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Vizilter, Yury Gorbatsevich, Vladimir Vorotnikov, Andrey Kostromov, Nikita State Res Inst Aviat Syst GosNIIAS Moscow Russia

ISBN: (纸本)9781509014378

The family of real-time face representations is obtained via Convolutional Network with Hashing Forest (CNHF). We learn the CNN, then transform CNN to the multiple convolution architecture and finally learn the output hashing transform via new Boosted Hashing Forest (BHF) technique. This BHF generalizes the Boosted SSC approach for hashing learning with joint optimization of face verification and identification. CNHF is trained on CASIA-WebFace dataset and evaluated on LFW dataset. We code the output of single CNN with 97% on LFW. For Hamming embedding we get CBHF-200 bit (25 byte) code with 96.3% and 2000-bit code with 98.14% on LFW. CNHF with 2000X7-bit hashing trees achieves 93% rank-1 on LFW relative to basic CNN 89.9% rank-1. CNHF generates templates at the rate of 40+ fps with CPU Core i7 and 120+ fps with GPU GeForce GTX 650.

关键词： Face recognition

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vision based autonomous orientational control for aerial manipulation via on-board FPGA 29

Vision based autonomous orientational control for aerial man...

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29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Suphachart, Leewiwatwong Shimahara, Syohei Ladig, Robert Shimonomura, Kazuhiro Ritsumeikan Univ Dept Robot Kusatsu Shiga 5258577 Japan

ISBN: (纸本)9781509014378

We describe an FPGA-based on-board control system for autonomous orientation of an aerial robot to assist aerial manipulation tasks. The system is able to apply yaw control to aid an operator to precisely position a drone when it is nearby a bar-like object. This is achieved by applying parallel Hough transform enhanced with a novel image space separation method, enabling highly reliable results in various circumstances combined with high performance. The feasibility of this approach is shown by applying the system to a multi-rotor aerial robot equipped with an upward directed robotic hand on top of the airframe developed for high altitude manipulation tasks. In order to grasp a bar-like object, orientation of the bar object is observed from the image data obtained by a monocular camera mounted on the robot. This data is then analyzed by the on-board FPGA system to control yaw angle of the aerial robot. In experiments, reliable yaw-orientation control of the aerial robot is achieved.

关键词： Field programmable gate arrays (FPGA)

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Person-independent 3D Gaze Estimation using Face Frontalization 29

Person-independent 3D Gaze Estimation using Face Frontalizat...

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29th ieee conference on computer vision and pattern recognition (cvpr)

作者： Jeni, Laszlo A. Cohn, Jeffrey F. Carnegie Mellon Univ Pittsburgh PA 15213 USA Univ Pittsburgh Pittsburgh PA USA

ISBN: (纸本)9781509014378

Person-independent and pose-invariant estimation of eye-gaze is important for situation analysis and for automated video annotation. We propose a fast cascade regression based method that first estimates the location of a dense set of markers and their visibility, then reconstructs face shape by fitting a part-based 3D model. Next, the reconstructed 3D shape is used to estimate a canonical view of the eyes for 3D gaze estimation. The model operates in a feature space that naturally encodes local ordinal properties of pixel intensities leading to photometric invariant estimation of gaze. To evaluate the algorithm in comparison with alternative approaches, three publicly-available databases were used, Boston University Head Tracking, Multi-View Gaze and CAVE Gaze datasets. Precision for head pose and gaze averaged 4 degrees or less for pitch, yaw, and roll. The algorithm outperformed alternative methods in both datasets.

关键词： Three dimensional computer graphics

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