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Author | Dena Bazazian; Dimosthenis Karatzas; Andrew Bagdanov | ||||
Title | Soft-PHOC Descriptor for End-to-End Word Spotting in Egocentric Scene Images | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | International Workshop on Egocentric Perception, Interaction and Computing at ECCV | Abbreviated Journal | |
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Abstract | Word spotting in natural scene images has many applications in scene understanding and visual assistance. We propose Soft-PHOC, an intermediate representation of images based on character probability maps. Our representation extends the concept of the Pyramidal Histogram Of Characters (PHOC) by exploiting Fully Convolutional Networks to derive a pixel-wise mapping of the character distribution within candidate word regions. We show how to use our descriptors for word spotting tasks in egocentric camera streams through an efficient text line proposal algorithm. This is based on the Hough Transform over character attribute maps followed by scoring using Dynamic Time Warping (DTW). We evaluate our results on ICDAR 2015 Challenge 4 dataset of incidental scene text captured by an egocentric camera. | ||||
Address | Munich; Alemanya; September 2018 | ||||
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Area | Expedition | Conference | ECCVW | ||
Notes | DAG; 600.129; 600.121; | Approved | no | ||
Call Number | Admin @ si @ BKB2018b | Serial | 3174 | ||
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Author | Jorge Bernal; Aymeric Histace; Marc Masana; Quentin Angermann; Cristina Sanchez Montes; Cristina Rodriguez de Miguel; Maroua Hammami; Ana Garcia Rodriguez; Henry Cordova; Olivier Romain; Gloria Fernandez Esparrach; Xavier Dray; F. Javier Sanchez | ||||
Title | Polyp Detection Benchmark in Colonoscopy Videos using GTCreator: A Novel Fully Configurable Tool for Easy and Fast Annotation of Image Databases | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 32nd International Congress and Exhibition on Computer Assisted Radiology & Surgery | Abbreviated Journal | |
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Area | Expedition | Conference | CARS | ||
Notes | ISE; MV; 600.119 | Approved | no | ||
Call Number | Admin @ si @ BHM2018 | Serial | 3089 | ||
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Author | Albert Berenguel; Oriol Ramos Terrades; Josep Llados; Cristina Cañero | ||||
Title | Evaluation of Texture Descriptors for Validation of Counterfeit Documents | Type ![]() |
Conference Article | ||
Year | 2017 | Publication | 14th International Conference on Document Analysis and Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 1237-1242 | ||
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Abstract | This paper describes an exhaustive comparative analysis and evaluation of different existing texture descriptor algorithms to differentiate between genuine and counterfeit documents. We include in our experiments different categories of algorithms and compare them in different scenarios with several counterfeit datasets, comprising banknotes and identity documents. Computational time in the extraction of each descriptor is important because the final objective is to use it in a real industrial scenario. HoG and CNN based descriptors stands out statistically over the rest in terms of the F1-score/time ratio performance. | ||||
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ISSN | 2379-2140 | ISBN | Medium | ||
Area | Expedition | Conference | ICDAR | ||
Notes | DAG; 600.061; 601.269; 600.097; 600.121 | Approved | no | ||
Call Number | Admin @ si @ BRL2017 | Serial | 3092 | ||
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Author | Mohamed Ilyes Lakhal; Hakan Cevikalp; Sergio Escalera | ||||
Title | CRN: End-to-end Convolutional Recurrent Network Structure Applied to Vehicle Classification | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications | Abbreviated Journal | |
Volume | 5 | Issue | Pages | 137-144 | |
Keywords | Vehicle Classification; Deep Learning; End-to-end Learning | ||||
Abstract | Vehicle type classification is considered to be a central part of Intelligent Traffic Systems. In the recent years, deep learning methods have emerged in as being the state-of-the-art in many computer vision tasks. In this paper, we present a novel yet simple deep learning framework for the vehicle type classification problem. We propose an end-to-end trainable system, that combines convolution neural network for feature extraction and recurrent neural network as a classifier. The recurrent network structure is used to handle various types of feature inputs, and at the same time allows to produce a single or a set of class predictions. In order to assess the effectiveness of our solution, we have conducted a set of experiments in two public datasets, obtaining state of the art results. In addition, we also report results on the newly released MIO-TCD dataset. | ||||
Address | Funchal; Madeira; Portugal; January 2018 | ||||
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Area | Expedition | Conference | VISAPP | ||
Notes | HUPBA | Approved | no | ||
Call Number | Admin @ si @ LCE2018a | Serial | 3094 | ||
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Author | ChunYang; Xu Cheng Yin; Hong Yu; Dimosthenis Karatzas; Yu Cao | ||||
Title | ICDAR2017 Robust Reading Challenge on Text Extraction from Biomedical Literature Figures (DeTEXT) | Type ![]() |
Conference Article | ||
Year | 2017 | Publication | 14th International Conference on Document Analysis and Recognition | Abbreviated Journal | |
Volume | Issue | Pages | 1444-1447 | ||
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Abstract | Hundreds of millions of figures are available in the biomedical literature, representing important biomedical experimental evidence. Since text is a rich source of information in figures, automatically extracting such text may assist in the task of mining figure information and understanding biomedical documents. Unlike images in the open domain, biomedical figures present a variety of unique challenges. For example, biomedical figures typically have complex layouts, small font sizes, short text, specific text, complex symbols and irregular text arrangements. This paper presents the final results of the ICDAR 2017 Competition on Text Extraction from Biomedical Literature Figures (ICDAR2017 DeTEXT Competition), which aims at extracting (detecting and recognizing) text from biomedical literature figures. Similar to text extraction from scene images and web pictures, ICDAR2017 DeTEXT Competition includes three major tasks, i.e., text detection, cropped word recognition and end-to-end text recognition. Here, we describe in detail the data set, tasks, evaluation protocols and participants of this competition, and report the performance of the participating methods. | ||||
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ISSN | ISBN | 978-1-5386-3586-5 | Medium | ||
Area | Expedition | Conference | ICDAR | ||
Notes | DAG; 600.121 | Approved | no | ||
Call Number | Admin @ si @ YCY2017 | Serial | 3098 | ||
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Author | Lluis Gomez; Marçal Rusiñol; Ali Furkan Biten; Dimosthenis Karatzas | ||||
Title | Subtitulació automàtica d'imatges. Estat de l'art i limitacions en el context arxivístic | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | Jornades Imatge i Recerca | Abbreviated Journal | |
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Area | Expedition | Conference | JIR | ||
Notes | DAG; 600.084; 600.135; 601.338; 600.121; 600.129 | Approved | no | ||
Call Number | Admin @ si @ GRB2018 | Serial | 3173 | ||
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Author | Lluis Gomez; Marçal Rusiñol; Dimosthenis Karatzas | ||||
Title | Cutting Sayre's Knot: Reading Scene Text without Segmentation. Application to Utility Meters | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 13th IAPR International Workshop on Document Analysis Systems | Abbreviated Journal | |
Volume | Issue | Pages | 97-102 | ||
Keywords | Robust Reading; End-to-end Systems; CNN; Utility Meters | ||||
Abstract | In this paper we present a segmentation-free system for reading text in natural scenes. A CNN architecture is trained in an end-to-end manner, and is able to directly output readings without any explicit text localization step. In order to validate our proposal, we focus on the specific case of reading utility meters. We present our results in a large dataset of images acquired by different users and devices, so text appears in any location, with different sizes, fonts and lengths, and the images present several distortions such as
dirt, illumination highlights or blur. |
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Address | Viena; Austria; April 2018 | ||||
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Area | Expedition | Conference | DAS | ||
Notes | DAG; 600.084; 600.121; 600.129 | Approved | no | ||
Call Number | Admin @ si @ GRK2018 | Serial | 3102 | ||
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Author | Dimosthenis Karatzas; Lluis Gomez; Marçal Rusiñol; Anguelos Nicolaou | ||||
Title | The Robust Reading Competition Annotation and Evaluation Platform | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 13th IAPR International Workshop on Document Analysis Systems | Abbreviated Journal | |
Volume | Issue | Pages | 61-66 | ||
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Abstract | The ICDAR Robust Reading Competition (RRC), initiated in 2003 and reestablished in 2011, has become the defacto evaluation standard for the international community. Concurrent with its second incarnation in 2011, a continuous
effort started to develop an online framework to facilitate the hosting and management of competitions. This short paper briefly outlines the Robust Reading Competition Annotation and Evaluation Platform, the backbone of the Robust Reading Competition, comprising a collection of tools and processes that aim to simplify the management and annotation of data, and to provide online and offline performance evaluation and analysis services. |
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Address | Viena; Austria; April 2018 | ||||
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Language | Summary Language | Original Title | |||
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Area | Expedition | Conference | DAS | ||
Notes | DAG; 600.084; 600.121 | Approved | no | ||
Call Number | KGR2018 | Serial | 3103 | ||
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Author | David Aldavert; Marçal Rusiñol | ||||
Title | Manuscript text line detection and segmentation using second-order derivatives analysis | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 13th IAPR International Workshop on Document Analysis Systems | Abbreviated Journal | |
Volume | Issue | Pages | 293 - 298 | ||
Keywords | text line detection; text line segmentation; text region detection; second-order derivatives | ||||
Abstract | In this paper, we explore the use of second-order derivatives to detect text lines on handwritten document images. Taking advantage that the second derivative gives a minimum response when a dark linear element over a
bright background has the same orientation as the filter, we use this operator to create a map with the local orientation and strength of putative text lines in the document. Then, we detect line segments by selecting and merging the filter responses that have a similar orientation and scale. Finally, text lines are found by merging the segments that are within the same text region. The proposed segmentation algorithm, is learning-free while showing a performance similar to the state of the art methods in publicly available datasets. |
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Address | Viena; Austria; April 2018 | ||||
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Area | Expedition | Conference | DAS | ||
Notes | DAG; 600.084; 600.129; 302.065; 600.121 | Approved | no | ||
Call Number | Admin @ si @ AlR2018a | Serial | 3104 | ||
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Author | David Aldavert; Marçal Rusiñol | ||||
Title | Synthetically generated semantic codebook for Bag-of-Visual-Words based word spotting | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 13th IAPR International Workshop on Document Analysis Systems | Abbreviated Journal | |
Volume | Issue | Pages | 223 - 228 | ||
Keywords | Word Spotting; Bag of Visual Words; Synthetic Codebook; Semantic Information | ||||
Abstract | Word-spotting methods based on the Bag-ofVisual-Words framework have demonstrated a good retrieval performance even when used in a completely unsupervised manner. Although unsupervised approaches are suitable for
large document collections due to the cost of acquiring labeled data, these methods also present some drawbacks. For instance, having to train a suitable “codebook” for a certain dataset has a high computational cost. Therefore, in this paper we present a database agnostic codebook which is trained from synthetic data. The aim of the proposed approach is to generate a codebook where the only information required is the type of script used in the document. The use of synthetic data also allows to easily incorporate semantic information in the codebook generation. So, the proposed method is able to determine which set of codewords have a semantic representation of the descriptor feature space. Experimental results show that the resulting codebook attains a state-of-the-art performance while having a more compact representation. |
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Address | Viena; Austria; April 2018 | ||||
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Area | Expedition | Conference | DAS | ||
Notes | DAG; 600.084; 600.129; 600.121 | Approved | no | ||
Call Number | Admin @ si @ AlR2018b | Serial | 3105 | ||
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Author | V. Poulain d'Andecy; Emmanuel Hartmann; Marçal Rusiñol | ||||
Title | Field Extraction by hybrid incremental and a-priori structural templates | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 13th IAPR International Workshop on Document Analysis Systems | Abbreviated Journal | |
Volume | Issue | Pages | 251 - 256 | ||
Keywords | Layout Analysis; information extraction; incremental learning | ||||
Abstract | In this paper, we present an incremental framework for extracting information fields from administrative documents. First, we demonstrate some limits of the existing state-of-the-art methods such as the delay of the system efficiency. This is a concern in industrial context when we have only few samples of each document class. Based on this analysis, we propose a hybrid system combining incremental learning by means of itf-df statistics and a-priori generic
models. We report in the experimental section our results obtained with a dataset of real invoices. |
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Address | Viena; Austria; April 2018 | ||||
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Area | Expedition | Conference | DAS | ||
Notes | DAG; 600.084; 600.129; 600.121 | Approved | no | ||
Call Number | Admin @ si @ PHR2018 | Serial | 3106 | ||
Permanent link to this record | |||||
Author | Felipe Codevilla; Matthias Muller; Antonio Lopez; Vladlen Koltun; Alexey Dosovitskiy | ||||
Title | End-to-end Driving via Conditional Imitation Learning | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | IEEE International Conference on Robotics and Automation | Abbreviated Journal | |
Volume | Issue | Pages | 4693 - 4700 | ||
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Abstract | Deep networks trained on demonstrations of human driving have learned to follow roads and avoid obstacles. However, driving policies trained via imitation learning cannot be controlled at test time. A vehicle trained end-to-end to imitate an expert cannot be guided to take a specific turn at an upcoming intersection. This limits the utility of such systems. We propose to condition imitation learning on high-level command input. At test time, the learned driving policy functions as a chauffeur that handles sensorimotor coordination but continues to respond to navigational commands. We evaluate different architectures for conditional imitation learning in vision-based driving. We conduct experiments in realistic three-dimensional simulations of urban driving and on a 1/5 scale robotic truck that is trained to drive in a residential area. Both systems drive based on visual input yet remain responsive to high-level navigational commands. The supplementary video can be viewed at this https URL | ||||
Address | Brisbane; Australia; May 2018 | ||||
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Area | Expedition | Conference | ICRA | ||
Notes | ADAS; 600.116; 600.124; 600.118 | Approved | no | ||
Call Number | Admin @ si @ CML2018 | Serial | 3108 | ||
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Author | Stefan Schurischuster; Beatriz Remeseiro; Petia Radeva; Martin Kampel | ||||
Title | A Preliminary Study of Image Analysis for Parasite Detection on Honey Bees | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 15th International Conference on Image Analysis and Recognition | Abbreviated Journal | |
Volume | 10882 | Issue | Pages | 465-473 | |
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Abstract | Varroa destructor is a parasite harming bee colonies. As the worldwide bee population is in danger, beekeepers as well as researchers are looking for methods to monitor the health of bee hives. In this context, we present a preliminary study to detect parasites on bee videos by means of image analysis and machine learning techniques. For this purpose, each video frame is analyzed individually to extract bee image patches, which are then processed to compute image descriptors and finally classified into mite and no mite bees. The experimental results demonstrated the adequacy of the proposed method, which will be a perfect stepping stone for a further bee monitoring system. | ||||
Address | Povoa de Varzim; Portugal; June 2018 | ||||
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Language | Summary Language | Original Title | |||
Series Editor | Series Title | Abbreviated Series Title | LNCS | ||
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ISSN | ISBN | Medium | |||
Area | Expedition | Conference | ICIAR | ||
Notes | MILAB; no proj | Approved | no | ||
Call Number | Admin @ si @ SRR2018a | Serial | 3110 | ||
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Author | Md. Mostafa Kamal Sarker; Hatem A. Rashwan; Farhan Akram; Syeda Furruka Banu; Adel Saleh; Vivek Kumar Singh; Forhad U. H. Chowdhury; Saddam Abdulwahab; Santiago Romani; Petia Radeva; Domenec Puig | ||||
Title | SLSDeep: Skin Lesion Segmentation Based on Dilated Residual and Pyramid Pooling Networks. | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 21st International Conference on Medical Image Computing & Computer Assisted Intervention | Abbreviated Journal | |
Volume | 2 | Issue | Pages | 21-29 | |
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Abstract | Skin lesion segmentation (SLS) in dermoscopic images is a crucial task for automated diagnosis of melanoma. In this paper, we present a robust deep learning SLS model, so-called SLSDeep, which is represented as an encoder-decoder network. The encoder network is constructed by dilated residual layers, in turn, a pyramid pooling network followed by three convolution layers is used for the decoder. Unlike the traditional methods employing a cross-entropy loss, we investigated a loss function by combining both Negative Log Likelihood (NLL) and End Point Error (EPE) to accurately segment the melanoma regions with sharp boundaries. The robustness of the proposed model was evaluated on two public databases: ISBI 2016 and 2017 for skin lesion analysis towards melanoma detection challenge. The proposed model outperforms the state-of-the-art methods in terms of segmentation accuracy. Moreover, it is capable to segment more than 100 images of size 384x384 per second on a recent GPU. | ||||
Address | Granada; Espanya; September 2018 | ||||
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Area | Expedition | Conference | MICCAI | ||
Notes | MILAB; no proj | Approved | no | ||
Call Number | Admin @ si @ SRA2018 | Serial | 3112 | ||
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Author | Md. Mostafa Kamal Sarker; Mohammed Jabreel; Hatem A. Rashwan; Syeda Furruka Banu; Petia Radeva; Domenec Puig | ||||
Title | CuisineNet: Food Attributes Classification using Multi-scale Convolution Network | Type ![]() |
Conference Article | ||
Year | 2018 | Publication | 21st International Conference of the Catalan Association for Artificial Intelligence | Abbreviated Journal | |
Volume | Issue | Pages | 365-372 | ||
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Abstract | Diversity of food and its attributes represents the culinary habits of peoples from different countries. Thus, this paper addresses the problem of identifying food culture of people around the world and its flavor by classifying two main food attributes, cuisine and flavor. A deep learning model based on multi-scale convotuional networks is proposed for extracting more accurate features from input images. The aggregation of multi-scale convolution layers with different kernel size is also used for weighting the features results from different scales. In addition, a joint loss function based on Negative Log Likelihood (NLL) is used to fit the model probability to multi labeled classes for multi-modal classification task. Furthermore, this work provides a new dataset for food attributes, so-called Yummly48K, extracted from the popular food website, Yummly. Our model is assessed on the constructed Yummly48K dataset. The experimental results show that our proposed method yields 65% and 62% average F1 score on validation and test set which outperforming the state-of-the-art models. | ||||
Address | Roses; catalonia; October 2018 | ||||
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Area | Expedition | Conference | CCIA | ||
Notes | MILAB; no menciona | Approved | no | ||
Call Number | Admin @ si @ SJR2018 | Serial | 3113 | ||
Permanent link to this record |