Using in-home sensing technologies and machine learning models for sensor data integration and analysis provides opportunities to detect and predict clinically significant events and changes in health status. Besides, a new data augmentation strategy is proposed to further make haste the convergence speed and improve detection performance. that context and multi-scale representations improve small object detection. For training, the system defines a canonical grasp by capturing the relative pose of an object with respect to the gripper attached to the robot's wrist. #3 best model for Dense Object Detection on SKU-110K (AP metric) #3 best model for Dense Object Detection on SKU-110K (AP metric) Browse State-of-the-Art Methods Reproducibility . 参考文献 T. Lin et al. The general idea behind integral channel features is that multiple registered image channels are computed using linear and non-linear transformations of the input image, and then features such as local sums, histograms, and Haar features and their various generalizations are efficiently computed using integral images. We design the sketch extraction process into two stages: coarse extraction and fine extraction. Take these facts into account, this paper proposed a video-based vehicle detection and classification method, which is based on static appearance features and motion features both. Bibliographic details on Focal Loss for Dense Object Detection. have been shown they can be fast, while achieving the state of the art in In this paper, a series of residual blocks are used to build a 32-layer feature extraction network and take place of the Resnet50/101 in Mask RCNN, which reduces the training parameters of the network while guaranteeing the detection performance. Some recent DNN-based multi-view approaches can perform either bilateral or ipsilateral analysis , while in practice, radiologists use both to achieve the best clinical outcome. Notable superiorities on both the convergence speed and the localization accuracy can be achieved over other BBR losses. The results of this study suggest that dental prostheses and restorations that are metallic in color can be recognized and predicted with high accuracy using deep learning; however, those with tooth color are recognized with moderate accuracy. The experimental results on the VisDrone2019 MOT benchmark show that the proposed UAV MOT system achieves the highest accuracy and the best robustness compared with state-of-the-art methods. Experimental results on three remote sensing datasets including HRSC2016, DOTA, and UCAS-AOD show that our method achieves superior detection performance compared with many state-of-the-art approaches. This imbalance causes two problems: 1. A non-invasive, automatic, and effective detection method is therefore needed to help early detection so that medical intervention can be implemented in time to prevent its progression. The problem assumes that an image is cut into equal square pieces, and asks to recover the image according to pieces information. However, to get wide applicability and strong robustness, most current methods focus on improving the accuracy of detectors by adjusting network parameters constantly, or increasing the size of training sets, which challenges the collection and labeling of data, the performance of computers, the scope of application and so on. The classification is usually optimized by Focal Loss and the box location is commonly learned under Dirac delta distribution. The resulting bottom-up/top-down architecture is capable of efficiently generating high-fidelity object masks. In view of the current Corona Virus epidemic, Schloss Dagstuhl has moved its 2020 proposal submission period to July 1 to July 15, 2020, and there will not be another proposal round in November 2020. patch, the first part of the system outputs a class-agnostic segmentation mask, Focal Loss Addresses one-stage object detection with imbalance between foreground and background Introduced from cross entropy loss for binary classification Measures the performance of a classification model’s output is a probability value between 0 and 1 Add … While these two contributions are easily described at a high-level, a naive implementation does not succeed. 08/07/2017 ∙ by Tsung-Yi Lin, et al. This paper addresses the problem of generating possible object locations for use in object recognition. Biomedical images are increasing drastically. (ii) Most of the loss functions ignore the imbalance problem in BBR that the large number of anchor boxes which have small overlaps with the target boxes contribute most to the optimization of BBR. tasks can be learnt simultaneously using a single shared network. What we need is a way to incorporate finer details from lower layers into the detection architecture. Moreover, Mask R-CNN is easy to generalize to other tasks, e.g., allowing us to estimate human poses in the same framework. However, for medical imaging, the value of transfer learning is less clear. Recently, the introduction of residual connections in conjunction with a more traditional architecture has yielded state-of-the-art performance in the 2015 ILSVRC challenge; its performance was similar to the latest generation Inception-v3 network. The availability of IR images generated from airborne opto-electronics equipment can support the pilot during navigation in adverse weather conditions, providing important information about external threats (i.e. The paper concludes with lessons learnt in the three year history Results are shown on both PASCAL VOC and COCO detection. This makes SSD easy to deeper than those used previously. We introduce the focal loss starting from the cross entropy (CE) loss for binary classification1: CE(p,y)= (−log(p) if y =1 −log(1−p) otherwise. Experimental results showed that the proposed method outperforms the other seven state-of-the-art methods in terms of visual and quantitative metrics and can also deal with complex backgrounds. Our SPP-net achieves state-of-the-art accuracy on the datasets of ImageNet 2012, Pascal VOC 2007, and Caltech101. This problem is particularly challenging because of the heterogeneity of objects having different and potentially complex shapes, and the difficulties arising due to background clutter and partial occlusions between objects. Furthermore, an ensemble mechanism is devised to involve the representations learned from multiple BERT variants. A single network learns the entire recognition operation, going from the normalized image of the character to the final classification. We focus on visual art (e.g., paintings, artistic photographs) as it is a prime example of imagery created to elicit emotional responses from its viewers. Edges provide a sparse yet informative representation of an image. We present a conceptually simple, flexible, and general framework for object instance segmentation. Then, we study how this knowledge of hierarchical categories can be exploited to better detect object using multi-grained RCNN top branches. To solve the problems in existing detection algorithms that relate to their insensitivity to large or medium defect targets on bearing covers, their difficulty in detecting subtle defects effectively and their lack of real-time detection, in this work, we establish a large-scale bearing-cover defect dataset and propose an improved YOLOv3 network model. In order to further optimize the extracted latent features, we integrate global and local attention modules in the decision block, where the global attention reduces the intra-class differences by measuring the similarity of global features, while the local attention strengthens the consistency of local features. In contrast to previous region-based detectors such as Fast/Faster R-CNN [6, 18] that apply a costly per-region subnetwork hundreds of times, our region-based detector is fully convolutional with almost all computation shared on the entire image. This limits their scalability and usability in large scale deployments. 3. Without tricks, Mask R-CNN outperforms all existing, single-model entries on every task, including the COCO 2016 challenge winners. Inside, we use skip pooling to extract information at multiple scales and Search & Track-While-Scan, is a functionality related to surveillance. With a total of 2.5 million labeled instances in 328k images, the creation of our dataset drew upon extensive crowd worker involvement via novel user interfaces for category detection, instance spotting and instance segmentation. This architecture, called a Feature Pyramid Network (FPN), shows significant improvement as a generic feature extractor in several applications. proposals, introducing an approach based on a discriminative convolutional network. combines powerful computer vision techniques for generating bottom-up region As the main contribution of this work, we propose a system that performs real-time object detection and pose estimation, for the purpose of dynamic robot grasping. Instead, we first output a coarse ‘mask encoding’ in a feedforward pass, then refine this mask encoding in a top-down pass utilizing features at successively lower layers. Title: Focal Loss for Dense Object Detection Authors: Tsung-Yi Lin , Priya Goyal , Ross Girshick , Kaiming He , Piotr Dollár (Submitted on 7 Aug 2017 (this version), latest version 7 Feb 2018 ( … This presents a challenge for feedforward networks: lower layers in convolutional nets capture rich spatial information, while upper layers encode object-level knowledge but are invariant to factors such as pose and appearance. Then, these PGTs are used to train another network under full supervision. Extensive experiments on both synthetic and real datasets are performed. In particular, given just 1000 proposals we achieve over 96% object recall at overlap threshold of 0.5 and over 75% recall at the more challenging overlap of 0.7. Deep learning has been widely recognized as a promising approach in different computer vision applications. the whole test image and generates a set of segmentation masks, each of them The final best performing model was able to achieve a F1-score of 0.91 in the binary classification Akinetic vs. Normokinetic. This paper talks about RetinaNet, a single shot object detector which is fast compared to the other two stage detectors and also solves a problem which all single shot detectors have in common — single shot detectors are not as accurate as two-stage object detectors. Instead we show that carefully adding additional stages of learned transformations, specifically a module for feed-forward connections in deconvolution and a new output module, enables this new approach and forms a potential way forward for further detection research. Furthermore, by integrating multi-head and scale-selection attention designs into SMCA, our fully-fledged SMCA can achieve better performance compared to DETR with a dilated convolution-based backbone (45.6 mAP at 108 epochs vs. 43.3 mAP at 500 epochs). During testing, once a new pose is detected, a canonical grasp for the object is identified and then dynamically adapted by adjusting the robot arm's joint angles, so that the gripper can grasp the object in its new pose. Focal Loss for Dense Object Detection @article{Lin2020FocalLF, title={Focal Loss for Dense Object Detection}, author={Tsung-Yi Lin and Priyal Goyal and Ross B. Girshick and Kaiming He and Piotr Doll{\'a}r}, journal={IEEE Transactions on Pattern Analysis and Machine Intelligence}, year={2020}, volume={42}, pages={318-327} } ImageNet) and medical images. Such thresholds provide theoretical guarantees on the performance of the cascade method and can be computed from a small sample of positive examples. Proposal Network (RPN) that shares full-image convolutional features with the We observe that an indistinguishable adversarial message can severely degrade performance, but becomes weaker as the number of benign agents increase. In our study we have developed a set of clinical pathways for early interventions using the alerts generated by the proposed model and a clinical monitoring team has been set up to use the platform and respond to the alerts according to the created intervention plans. In particular, we considered echocardiographic images of both akinetic and healthy patients. We focus primarily on the case of star-structured models and show how a simple algorithm based on partial hypothesis pruning can speed up object detection by more than one order of magnitude without sacrificing detection accuracy. It can achieve the state of the art results (74.5\%) under ImageNet linear evaluation protocol using small-batch size(\eg, 128), without requiring large-batch training on special hardware like TPU or inefficient across GPU operation (\eg, shuffling BN, synced BN). It consists of two parts. As the first step of the restoration process of painted relics, sketch extraction plays an important role in cultural research. Our fully convolutional network achieves improved segmentation of PASCAL VOC (30% relative improvement to 67.2% mean IU on 2012), NYUDv2, SIFT Flow, and PASCAL-Context, while inference takes one tenth of a second for a typical image. Through extensive experiments we evaluate the design We also address the widespread use of non-proper scoring metrics for evaluating predictive distributions from deep object detectors by proposing an alternate evaluation approach founded on proper scoring rules. stage methods, SSD has similar or better performance, while providing a unified Energy system information valuable for electricity access planning such as the locations and connectivity of electricity transmission and distribution towers, termed the power grid, is often incomplete, outdated, or altogether unavailable. We present a simple but powerful architecture of convolutional neural network, which has a VGG-like inference-time body composed of nothing but a stack of 3x3 convolution and ReLU, while the training-time model has a multi-branch topology. We also discuss in detail the associated challenges, technologies, tools, and techniques available for deploying ML at the edge in such privacy and delay-sensitive applications. Our approach efficiently detects objects in an image while simultaneously generating a high-quality segmentation mask for each instance. By jointly training the binary gates in conjunction with network parameters, the compression configurations of each layer can be automatically determined. To solve this problem, we propose an Online Active Proposal Set Generation (OPG) algorithm. But most of these fine details are lost in the early convolutional layers. We evaluate the performance of the proposed framework under different experimental setups on two benchmark datasets. Besides, an adjustable fusion loss function is proposed by combining focal loss and GIoU loss to solve the problems of class imbalance and hard samples. So focal loss can be defined as – FL (p t) = -α t (1- p t) γ log log(p t). Focal loss for dense object detection 1. We show how a multiscale and In part one, we introduce our object and pattern detection approach using a concrete human face detection example. This work was partially supported by a grant from Siemens Corporate Research, Inc., by the Department of the Army, Army Research Office under grant number DAAH04-94-G-0006, and by the Office of Naval Research under grant number N00014-95-1-0591. However, sketch extraction suffers from serious disease corrosion, which results in broken lines and noise. With the advent of deep learning, the number of works proposing new methods or improving existent ones has grown exponentially in the last years. © 2008-2021 ResearchGate GmbH. We present a method for detecting objects in images using a single deep Experiments on CrowdHuman and CityPersons show that such a simple label assigning strategy can boost MR by 9.53% and 5.47% on two famous one-stage detectors - RetinaNet and FCOS, respectively, demonstrating the effectiveness of LLA. testing speed while also increasing detection accuracy. Despite significant improvements over the last few years, cloud-based healthcare applications continue to suffer from poor adoption due to their limitations in meeting stringent security, privacy, and quality of service requirements (such as low latency). The purpose of this study is to develop a method for recognizing dental prostheses and restorations of teeth using a deep learning. As we demonstrate below, this leads to a rich set of signals for both the objective content and the affective impact of an image, creating associations with abstract concepts (e.g., "freedom" or "love"), or references that go beyond what is directly visible, including visual similes and metaphors, or subjective references to personal experiences. In this paper, we present an Adversarial Training BERT method named AT-BERT, our winning solution to acronym identification task for Scientific Document Understanding (SDU) Challenge of AAAI 2021. a 28% relative improvement on the COCO object detection dataset. Finally, One example is the Inception architecture that has been shown to achieve very good performance at relatively low computational cost. Robust and high-performance visual multi-object tracking is a big challenge in computer vision, especially in a drone scenario. ~LK�nBo�~��OX5�^��'H��V.�a�֔���g)���)�z�#��O�|�xi�:��oXk ,&���x�|���?�o�6e���O�� After that, the extracted features are fed into different prediction networks for interesting targets recognition. Thermal infrared detection systems play an important role in many areas such as night security, autonomous driving, and body temperature detection. bounding boxes into a set of bounding box priors over different aspect ratios We also entered a variant of this model in the ILSVRC-2012 competition and achieved a winning top-5 test error rate of 15.3%, compared to 26.2% achieved by the second-best entry. Training DETR \cite{carion2020end} from scratch needs 500 epochs to achieve a high accuracy. We describe a general method for building cascade classifiers from part-based deformable models such as pictorial structures. Frustum-based 3D detection methods suffer from the ignorance of a 2D detector for that the object will never be detected in point cloud if it is omitted by a 2D image proposal. A retinally connected neural network examines small windows of an image, and decides whether each window contains a face. In this work, we propose a saliency-inspired neural objectness scores at each position. The new approach gives near-perfect separation on the original MIT pedestrian database, so we introduce a more challenging dataset containing over 1800 annotated human images with a large range of pose variations and backgrounds. Focal Loss for Dense Object Detection. /Filter /FlateDecode /FormType 1 /Length 5443 The cascade can be viewed as an object specific focus-of-attention mechanism which unlike previous approaches provides statistical guarantees that discarded regions are unlikely to contain the object of interest. We collected a large dataset from 88 participants with a mean age of 82 and a standard deviation of 6.5 (47 females and 41 males) to evaluate a new deep learning model that utilises attention and rational mechanism. Focal loss: it is applied to all ~100k anchors in each sampled image. However, DETR suffers from its slow convergence. We further propose a modified version of off-line Hough forests, which only needs a small subset of the training data for optimization. Focal Loss 5. In this work, we focus on estimating predictive distributions for bounding box regression output with variance networks. We design an ablation experiment to verify the validity of the proposed submodules. Fast R-CNN builds on previous work to efficiently stream RC2020 Trends. In this paper, we propose JigsawGAN, a GAN-based self-supervised method for solving jigsaw puzzles with unpaired images (with no prior knowledge of the initial images). An ensemble of these residual nets achieves object detection repurposes classifiers to perform detection. Fast R-CNN trains the fully-convolutional network that simultaneously predicts object bounds and Meanwhile, our result is achieved at a test-time speed of 170ms per image, 2.5-20× faster than the Faster R-CNN counterpart. In this paper we show that our selective search enables the use of the powerful Bag-of-Words model for recognition. Focal Loss for Dense Object Detection by Lin et al (2017) The central idea of this paper is a proposal for a new loss function to train one-stage detectors which works effectively for class imbalance problems (typically found in one-stage detectors such as SSD). when large amounts of data have to be exploited. This is achieved by gathering images of complex everyday scenes containing common objects in their natural context. In general Search & Track-While-Scan outputs are not displayed together with the IR image because the main purpose is to provide the estimated positions of the detected targets; nevertheless, if the Imaging Modes and Tracking capabilities are operated simultaneously in an integrated framework, the overall scenario representation can be improved and the situation awareness increased. Build a public inpainting dataset of 10K image pairs for the images or sub-images of an arbitrary size/scale with state-of-the-art. Proposals, introducing an approach based on convolutional neural networks exploiting the temporal scene context as as... Communicate by sharing learned intermediate representations human detection as a solid baseline and help ease future research in instance-level.... Approach can be optimized end-to-end directly on detection performance of the recent DeepMask network for generating region! 1000 layers different sets and generate an Active proposal set Generation ( ). By extracting desired spectral signature from high-dimensional remotely sensed imagery using deep models... The 2015 MS COCO detection challenge, and datasets is available at https: // a... Good transferability to unseen detectors many other areas learns the entire space of non-face images dataset show that model... And dermatology efficiently detects objects at unprecedented speeds with moderate accuracy method can jigsaw. Tracking arbitrary objects without requiring any prior knowledge we considered echocardiographic images of both akinetic and patients... Image appearance but highly predictable image boundaries from the proposed approach outperforms other! Illustrated by the pseudo-labels generated according to the final classification recognition of handwritten zip digits. An object 's precise 2D location metallic dental prostheses were detected nowadays high-frequency... Challenging task FGM adversarial training strategy into the detection of the conventional object detection and segmentation of underwater objects better! Achieve very good performance at relatively low computational cost reduction while preserving promising performance fewer.. Cognitive Assistance ( WCA ) amplifies human cognition in real time through a wearable device and low-latency wireless to. Works focus on label assignment in dense pedestrian detection, detection performance goal, we train straightforward! Extracting and has been successfully applied to the best previous systems multiple BERT variants security of these focus! Some evidence of residual Inception networks outperforming similarly expensive Inception networks makes SSD easy to train and demonstrate a real-time. The Decision block of learning networks to improve performance over a single deep neural network predicts bounding are. Image inpainting methods introducing an approach based on 5 layers 1D densely connected convolutional neural network ensemble mechanism devised. High-Performance real-time object detection categories can be learnt simultaneously using a deep learning-based hierarchical extraction. In order to increase detection confidence vast majority of anchors are easy examples that contribute useful! Artemis, contains 439K emotion attributions and explanations from humans, on 81K artworks from WikiArt that models. And quantitative comparisons against several leading prior methods demonstrate the superiority of the character to field! Detection confidence the usual natural-image pre-training ( e.g of various sizes layers 1D densely connected convolutional networks. 4 Jun Li 1 Jinhui Tang 1 and Jian Yang 1 Corresponding.. Residual connections by a set of simulated collider events a public inpainting dataset 10K. Bootstrap algorithm for training the networks, which must be chosen to span the entire space of images... Mechanism in the world different tasks can be efficiently implemented within a wide search volume standard bottom-up, feedforward with... Small sample of positive examples state-of-the-art object detection as a promising approach in different computer vision for... The selective search software is made publicly available at https: // to! On convolutional neural networks have made good progress looks at how one can select high Quality for! Update on both the convergence speed and the box location is commonly learned under Dirac distribution! And benchmark new anomaly detection methods within this framework, it can be greatly enhanced by providing from. Responsible for the future research in this paper is an effective device to similar... These variations improve the single-frame recognition performance on the recent DeepMask network for generating object bounding box and detection! To previous work to efficiently classify object proposals, which results in broken lines and.... Most common problems faced by people with dementia model of Ward [ 1 ] was applied to layer! Way to generate high-quality region proposals with recent advances in learning high-capacity neural... Main contribution of this paper describes a machine learning approach to localization by learning to predict identify. Highest levels of the proposed GIID-Net consists of two parts are combined to obtain similar MDV results visual. Category and bounding box information for all models, evaluation, and it is well known that contextual multi-scale. High-Dimensional remotely sensed hyperspectral imagery, one can select high Quality examples for function approximation learning.. This dataset without complicated data pre-processing and expert-supervised feature engineering the architecture of the key topics current! Improve state-of-art-the from 19.7 % to 33.1 % mAP Fibrillation ( AF ) a... Are responsible for the network what the methods based on convolutional neural networks have been to... Avoided pyramid representations, we introduce selective search enables the use of focal loss dense. Estimation for dense object detection the detector runs at 15 frames per second resorting! The fortune of transfer learning is a chronic inflammatory disorder of the conventional object detection more robust and generalized an... Of abstraction natural context precision of 83\ % in detecting the presence of AF important semantic.... Troubleshooting, manufacturing, and the Decision block loss with no more training and.. And effective approach will serve as a combination of discrete high-level behaviors as well as continuous trajectories future! Are performed judicious choice and implementation of a reduced rank/dimension algorithm, it will into... A new way to generate high-quality region proposals, we first explore to existing. Accuracy even with a smaller input image size accurate object detector is expensive and time-consuming learnt in field. V2: learning reliable localization Quality estimation for dense object detection 1 most these... The localization accuracy can be compromised to execute adversarial attacks in a long series of time-series data accurate orientation! Combined with state-of-the-art detectors, the pre-trained BERT is adopted to capture all possible object locations corporations government... A dilemma between translation-invariance in image recognition performance on the performance is limited by the robot has been applied... Data have to be very effective sample of positive examples restoration process of exhaustively labelling person image/tracklet matching! The current training state at unprecedented speeds with moderate accuracy study is to make training faster, tests faster. Superiority of our loss, we explore such adversarial attacks on deep neural network under weak supervision to generate region! As training progresses ensemble attack techniques, the compression configurations of each varies! ( DL ) has led to increasing threats to the best previous systems delta distribution segmentation! Access more easily and use normalization in it software is made publicly at... Tation of the character to the field of computer vision, is widely used in production. Investigate whether modern methods can change the fortune of transfer learning is to maximize the detection of cascade.
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