| Records |
| Author |
Salvatore Tabbone; Oriol Ramos Terrades; S. Barrat |
| Title |
Histogram of radon transform. A useful descriptor for shape retrieval |
Type |
Conference Article |
| Year |
2008 |
Publication |
19th International Conference on Pattern Recognition |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-4 |
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| Address |
Tampa, Florida |
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ICPR |
| Notes |
DAG |
Approved |
no |
| Call Number |
Admin @ si @ TRB2008 |
Serial |
1876 |
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| Author |
Murad Al Haj; Francisco Javier Orozco; Jordi Gonzalez; Juan J. Villanueva |
| Title |
Automatic Face and Facial Features Initialization for Robust and Accurate Tracking |
Type |
Conference Article |
| Year |
2008 |
Publication |
19th International Conference on Pattern Recognition. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1– 4 |
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| Address |
Tampa (Florida) |
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ICPR |
| Notes |
ISE |
Approved |
no |
| Call Number |
ISE @ ise @ AOG2008 |
Serial |
1072 |
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| Author |
Partha Pratim Roy; Umapada Pal; Josep Llados; F. Kimura |
| Title |
Convex Hull based Approach for Multi-oriented Character Recognition form Graphical Documents |
Type |
Conference Article |
| Year |
2008 |
Publication |
19th International Conference on Pattern Recognition |
Abbreviated Journal |
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Issue |
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Pages |
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| Address |
Tampa (Florida) |
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ICPR |
| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ RPL2008d |
Serial |
1073 |
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| Author |
Miquel Ferrer; Ernest Valveny; F. Serratosa; K. Riesen; Horst Bunke |
| Title |
An Approximate Algorith for Median Graph Computation using Graph Embedding |
Type |
Conference Article |
| Year |
2008 |
Publication |
19th International Conference on Pattern Recognition. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Abstract |
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| Address |
Tampa, USA |
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ICPR |
| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ FVS2008a |
Serial |
1064 |
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| Author |
H. Chouaib; Oriol Ramos Terrades; Salvatore Tabbone; F. Cloppet; N. Vincent |
| Title |
Feature Selection Combining Genetic Algorithm and Adaboost Classifiers |
Type |
Conference Article |
| Year |
2008 |
Publication |
19th International Conference on Pattern Recognition |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-4 |
| Keywords |
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| Abstract |
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| Address |
Tampa, Florida |
| Corporate Author |
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Place of Publication |
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Expedition |
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Conference |
ICPR |
| Notes |
DAG |
Approved |
no |
| Call Number |
Admin @ si @ CRT2008 |
Serial |
1872 |
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| Author |
Jose Antonio Rodriguez; Florent Perronnin; Gemma Sanchez; Josep Llados |
| Title |
Unsupervised writer style adaptation for handwritten word spotting |
Type |
Conference Article |
| Year |
2008 |
Publication |
Pattern Recognition. 19th International Conference on, IBM Best Student Paper Award. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
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| Abstract |
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| Address |
Tampa, USA |
| Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
ICPR |
| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ RPS2008 |
Serial |
1077 |
| Permanent link to this record |
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| Author |
Dimosthenis Karatzas; Marçal Rusiñol; Coen Antens; Miquel Ferrer |
| Title |
Segmentation Robust to the Vignette Effect for Machine Vision Systems |
Type |
Conference Article |
| Year |
2008 |
Publication |
19th International Conference on Pattern Recognition |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
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| Abstract |
The vignette effect (radial fall-off) is commonly encountered in images obtained through certain image acquisition setups and can seriously hinder automatic analysis processes. In this paper we present a fast and efficient method for dealing with vignetting in the context of object segmentation in an existing industrial inspection setup. The vignette effect is modelled here as a circular, non-linear gradient. The method estimates the gradient parameters and employs them to perform segmentation. Segmentation results on a variety of images indicate that the presented method is able to successfully tackle the vignette effect. |
| Address |
Tampa, USA |
| Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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Conference |
ICPR |
| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ KRA2008 |
Serial |
1065 |
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| Author |
Fernando Vilariño; Panagiota Spyridonos; Jordi Vitria; Fernando Azpiroz; Petia Radeva |
| Title |
Automatic Detection of Intestinal Juices in Wireless Capsule Video Endoscopy |
Type |
Conference Article |
| Year |
2006 |
Publication |
18th International Conference on Pattern Recognition |
Abbreviated Journal |
|
| Volume |
4 |
Issue |
|
Pages |
719-722 |
| Keywords |
Clinical diagnosis , Endoscopes , Fluids and secretions , Gabor filters , Hospitals , Image sequence analysis , Intestines , Lighting , Shape , Visualization |
| Abstract |
Wireless capsule video endoscopy is a novel and challenging clinical technique, whose major reported drawback relates to the high amount of time needed for video visualization. In this paper, we propose a method for the rejection of the parts of the video resulting not valid for analysis by means of automatic detection of intestinal juices. We applied Gabor filters for the characterization of the bubble-like shape of intestinal juices in fasting patients. Our method achieves a significant reduction in visualization time, with no relevant loss of valid frames. The proposed approach is easily extensible to other image analysis scenarios where the described pattern of bubbles can be found. |
| Address |
Hong Kong |
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Edition |
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| ISSN |
1051-4651 |
ISBN |
0-7695-2521-0 |
Medium |
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| Area |
800 |
Expedition |
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Conference |
ICPR |
| Notes |
MV;OR;MILAB;SIAI |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ VSV2006b; IAM @ iam @ VSV2006g |
Serial |
727 |
| Permanent link to this record |
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| Author |
Ernest Valveny; Enric Marti |
| Title |
Hand-drawn symbol recognition in graphic documents using deformable template matching and a Bayesian framework |
Type |
Conference Article |
| Year |
2000 |
Publication |
Proc. 15th Int Pattern Recognition Conf |
Abbreviated Journal |
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| Volume |
2 |
Issue |
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Pages |
239-242 |
| Keywords |
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| Abstract |
Hand-drawn symbols can take many different and distorted shapes from their ideal representation. Then, very flexible methods are needed to be able to handle unconstrained drawings. We propose here to extend our previous work in hand-drawn symbol recognition based on a Bayesian framework and deformable template matching. This approach gets flexibility enough to fit distorted shapes in the drawing while keeping fidelity to the ideal shape of the symbol. In this work, we define the similarity measure between an image and a symbol based on the distance from every pixel in the image to the lines in the symbol. Matching is carried out using an implementation of the EM algorithm. Thus, we can improve recognition rates and computation time with respect to our previous formulation based on a simulated annealing algorithm. |
| Address |
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Thesis |
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Place of Publication |
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Editor |
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Original Title |
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ISBN |
0-7695-0750-6 |
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| Notes |
DAG;IAM; |
Approved |
no |
| Call Number |
IAM @ iam @ VAM2000 |
Serial |
1656 |
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| |
| Author |
Margarita Torre; Petia Radeva |
| Title |
Agricultural-Field Extraction on Aerial Images by Region Competition Algorithm |
Type |
Conference Article |
| Year |
2000 |
Publication |
15 th International Conference on Pattern Recognition |
Abbreviated Journal |
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| Volume |
1 |
Issue |
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Pages |
313-316 |
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| Abstract |
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| Address |
Barcelona, Spain, 2000 |
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Conference |
ICPR |
| Notes |
MILAB |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ Tor2000a |
Serial |
222 |
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| Author |
Josep Llados; Jaime Lopez-Krahe; Enric Marti |
| Title |
Hand drawn document understanding using the straight line Hough transform and graph matching |
Type |
Conference Article |
| Year |
1996 |
Publication |
Proceedings of the 13th International Pattern Recognition Conference (ICPR’96) |
Abbreviated Journal |
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| Volume |
2 |
Issue |
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Pages |
497-501 |
| Keywords |
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| Abstract |
This paper presents a system to understand hand drawn architectural drawings in a CAD environment. The procedure is to identify in a floor plan the building elements, stored in a library of patterns, and their spatial relationships. The vectorized input document and the patterns to recognize are represented by attributed graphs. To recognize the patterns as such, we apply a structural approach based on subgraph isomorphism techniques. In spite of their value, graph matching techniques do not recognize adequately those building elements characterized by hatching patterns, i.e. walls. Here we focus on the recognition of hatching patterns and develop a straight line Hough transform based method in order to detect the regions filled in with parallel straight fines. This allows not only to recognize filling patterns, but it actually reduces the computational load associated with the subgraph isomorphism computation. The result is that the document can be redrawn by editing all the patterns recognized |
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Place of Publication |
Vienna , Austria |
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| Notes |
DAG;IAM; |
Approved |
no |
| Call Number |
IAM @ iam @ LLM1996 |
Serial |
1579 |
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| Author |
Marc Bolaños; R. Mestre; Estefania Talavera; Xavier Giro; Petia Radeva |
| Title |
Visual Summary of Egocentric Photostreams by Representative Keyframes |
Type |
Conference Article |
| Year |
2015 |
Publication |
IEEE International Conference on Multimedia and Expo ICMEW2015 |
Abbreviated Journal |
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Issue |
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Pages |
1-6 |
| Keywords |
egocentric; lifelogging; summarization; keyframes |
| Abstract |
Building a visual summary from an egocentric photostream captured by a lifelogging wearable camera is of high interest for different applications (e.g. memory reinforcement). In this paper, we propose a new summarization method based on keyframes selection that uses visual features extracted bymeans of a convolutional neural network. Our method applies an unsupervised clustering for dividing the photostreams into events, and finally extracts the most relevant keyframe for each event. We assess the results by applying a blind-taste test on a group of 20 people who assessed the quality of the
summaries. |
| Address |
Torino; italy; July 2015 |
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Series Issue |
978-1-4799-7079-7 |
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ISBN |
978-1-4799-7079-7 |
Medium |
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Conference |
ICME |
| Notes |
MILAB |
Approved |
no |
| Call Number |
Admin @ si @ BMT2015 |
Serial |
2638 |
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| Author |
H. Emrah Tasli; Cevahir Çigla; Theo Gevers; A. Aydin Alatan |
| Title |
Super pixel extraction via convexity induced boundary adaptation |
Type |
Conference Article |
| Year |
2013 |
Publication |
14th IEEE International Conference on Multimedia and Expo |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-6 |
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| Abstract |
This study presents an efficient super-pixel extraction algorithm with major contributions to the state-of-the-art in terms of accuracy and computational complexity. Segmentation accuracy is improved through convexity constrained geodesic distance utilization; while computational efficiency is achieved by replacing complete region processing with boundary adaptation idea. Starting from the uniformly distributed rectangular equal-sized super-pixels, region boundaries are adapted to intensity edges iteratively by assigning boundary pixels to the most similar neighboring super-pixels. At each iteration, super-pixel regions are updated and hence progressively converging to compact pixel groups. Experimental results with state-of-the-art comparisons, validate the performance of the proposed technique in terms of both accuracy and speed. |
| Address |
San Jose; USA; July 2013 |
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| ISSN |
1945-7871 |
ISBN |
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Conference |
ICME |
| Notes |
ALTRES;ISE |
Approved |
no |
| Call Number |
Admin @ si @ TÇG2013 |
Serial |
2367 |
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| Author |
Jaime Moreno; Xavier Otazu |
| Title |
Image compression algorithm based on Hilbert scanning of embedded quadTrees: an introduction of the Hi-SET coder |
Type |
Conference Article |
| Year |
2011 |
Publication |
IEEE International Conference on Multimedia and Expo |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-6 |
| Keywords |
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| Abstract |
In this work we present an effective and computationally simple algorithm for image compression based on Hilbert Scanning of Embedded quadTrees (Hi-SET). It allows to represent an image as an embedded bitstream along a fractal function. Embedding is an important feature of modern image compression algorithms, in this way Salomon in [1, pg. 614] cite that another feature and perhaps a unique one is the fact of achieving the best quality for the number of bits input by the decoder at any point during the decoding. Hi-SET possesses also this latter feature. Furthermore, the coder is based on a quadtree partition strategy, that applied to image transformation structures such as discrete cosine or wavelet transform allows to obtain an energy clustering both in frequency and space. The coding algorithm is composed of three general steps, using just a list of significant pixels. The implementation of the proposed coder is developed for gray-scale and color image compression. Hi-SET compressed images are, on average, 6.20dB better than the ones obtained by other compression techniques based on the Hilbert scanning. Moreover, Hi-SET improves the image quality in 1.39dB and 1.00dB in gray-scale and color compression, respectively, when compared with JPEG2000 coder. |
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| ISSN |
1945-7871 |
ISBN |
978-1-61284-348-3 |
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ICME |
| Notes |
CIC |
Approved |
no |
| Call Number |
Admin @ si @ MoO2011a |
Serial |
2176 |
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| Author |
D. Jayagopi; Bogdan Raducanu; D. Gatica-Perez |
| Title |
Characterizing conversational group dynamics using nonverbal behaviour |
Type |
Conference Article |
| Year |
2009 |
Publication |
10th IEEE International Conference on Multimedia and Expo |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
370–373 |
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| Abstract |
This paper addresses the novel problem of characterizing conversational group dynamics. It is well documented in social psychology that depending on the objectives a group, the dynamics are different. For example, a competitive meeting has a different objective from that of a collaborative meeting. We propose a method to characterize group dynamics based on the joint description of a group members' aggregated acoustical nonverbal behaviour to classify two meeting datasets (one being cooperative-type and the other being competitive-type). We use 4.5 hours of real behavioural multi-party data and show that our methodology can achieve a classification rate of upto 100%. |
| Address |
New York, USA |
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Edition |
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| ISSN |
1945-7871 |
ISBN |
978-1-4244-4290-4 |
Medium |
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Expedition |
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Conference |
ICME |
| Notes |
OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ JRG2009 |
Serial |
1217 |
| Permanent link to this record |
