| Records |
| Author |
Xavier Otazu; Maria Vanrell; C. Alejandro Parraga |
| Title |
Mutiresolution Wavelet Framework Reproduces Induction Effects |
Type |
Journal |
| Year |
2007 |
Publication |
Perception 36:167–167, supp |
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CIC |
Approved |
no |
| Call Number |
CAT @ cat @ OVP2007 |
Serial |
842 |
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| Author |
C. Alejandro Parraga; Robert Benavente; Maria Vanrell |
| Title |
Modeling Colour-Naming Space with Fuzzy Sets |
Type |
Journal |
| Year |
2007 |
Publication |
Perception 36:198–198, supp |
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CIC |
Approved |
no |
| Call Number |
CAT @ cat @ PBV2007 |
Serial |
843 |
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| Author |
Xavier Otazu; Maria Vanrell; C. Alejandro Parraga |
| Title |
Multiresolution Wavelet Framework Models Brightness Induction Effects |
Type |
Journal |
| Year |
2008 |
Publication |
Vision Research |
Abbreviated Journal |
VR |
| Volume |
48 |
Issue |
5 |
Pages |
733–751 |
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CIC |
Approved |
no |
| Call Number |
CAT @ cat @ OVP2008a |
Serial |
927 |
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| Author |
O. Fors; A. Richichi; Xavier Otazu; J. Nuñez |
| Title |
A new wavelet-based approach for the automated treatment of large sets of lunar occultation data |
Type |
Journal |
| Year |
2008 |
Publication |
Astronomy and Astrohysics |
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| Volume |
480 |
Issue |
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Pages |
297–304 |
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CIC |
Approved |
no |
| Call Number |
CAT @ cat @ FRO2008 |
Serial |
934 |
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| Author |
Robert Benavente; Maria Vanrell; Ramon Baldrich |
| Title |
Parametric Fuzzy Sets for Automatic Color Naming |
Type |
Journal |
| Year |
2008 |
Publication |
Journal of the Optical Society of America A |
Abbreviated Journal |
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| Volume |
25 |
Issue |
10 |
Pages |
2582–2593 |
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| Notes |
CIC |
Approved |
no |
| Call Number |
CAT @ cat @ BVB2008 |
Serial |
1004 |
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| Author |
Xavier Otazu; Maria Vanrell; C. Alejandro Parraga |
| Title |
Colour induction effects are modelled by a low-level multiresolution wavelet framework |
Type |
Journal |
| Year |
2008 |
Publication |
Perception 37(Suppl.): 107 |
Abbreviated Journal |
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CIC |
Approved |
no |
| Call Number |
CAT @ cat @ OVP2008b |
Serial |
1055 |
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| Author |
Yasuko Sugito; Trevor Canham; Javier Vazquez; Marcelo Bertalmio |
| Title |
A Study of Objective Quality Metrics for HLG-Based HDR/WCG Image Coding |
Type |
Journal |
| Year |
2021 |
Publication |
SMPTE Motion Imaging Journal |
Abbreviated Journal |
SMPTE |
| Volume |
130 |
Issue |
4 |
Pages |
53 - 65 |
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| Abstract |
In this work, we study the suitability of high dynamic range, wide color gamut (HDR/WCG) objective quality metrics to assess the perceived deterioration of compressed images encoded using the hybrid log-gamma (HLG) method, which is the standard for HDR television. Several image quality metrics have been developed to deal specifically with HDR content, although in previous work we showed that the best results (i.e., better matches to the opinion of human expert observers) are obtained by an HDR metric that consists simply in applying a given standard dynamic range metric, called visual information fidelity (VIF), directly to HLG-encoded images. However, all these HDR metrics ignore the chroma components for their calculations, that is, they consider only the luminance channel. For this reason, in the current work, we conduct subjective evaluation experiments in a professional setting using compressed HDR/WCG images encoded with HLG and analyze the ability of the best HDR metric to detect perceivable distortions in the chroma components, as well as the suitability of popular color metrics (including ΔITPR , which supports parameters for HLG) to correlate with the opinion scores. Our first contribution is to show that there is a need to consider the chroma components in HDR metrics, as there are color distortions that subjects perceive but that the best HDR metric fails to detect. Our second contribution is the surprising result that VIF, which utilizes only the luminance channel, correlates much better with the subjective evaluation scores than the metrics investigated that do consider the color components. |
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CIC |
Approved |
no |
| Call Number |
SCV2021 |
Serial |
3671 |
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| Author |
Ernest Valveny; Philippe Dosch |
| Title |
A general framework for the evaluation of symbol recognition methods |
Type |
Journal |
| Year |
2006 |
Publication |
International Journal on Document Analysis and Recognition |
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DAG |
Approved |
no |
| Call Number |
DAG @ dag @ VaD2006 |
Serial |
686 |
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| Author |
Josep Llados; Dorothea Blostein |
| Title |
Special Issue on Graphics Recognition |
Type |
Journal |
| Year |
2007 |
Publication |
International Journal on Document Analysis and Recognition |
Abbreviated Journal |
IJDAR |
| Volume |
9 |
Issue |
1 |
Pages |
1–2 |
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DAG |
Approved |
no |
| Call Number |
DAG @ dag @ LlB2007 |
Serial |
781 |
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| Author |
Ernest Valveny; Philippe Dosch; Adam Winstanley; Yu Zhou; Su Yang; Luo Yan; Liu Wenyin; Dave Elliman; Mathieu Nicolas Delalandre; Eric Trupin; Sebastien Adam; Jean-Marc Ogier |
| Title |
A general framework for the evaluation of symbol recognition methods |
Type |
Journal |
| Year |
2006 |
Publication |
International Journal on Document Analysis and Recognition (IJDAR), 9(1): 59–74 |
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DAG |
Approved |
no |
| Call Number |
DAG @ dag @ VDW2006 |
Serial |
801 |
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| Author |
Gemma Sanchez; Alicia Fornes; Joan Mas; Josep Llados |
| Title |
Computer Vision Tools for Visually Impaired Children Learning |
Type |
Journal |
| Year |
2007 |
Publication |
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DAG |
Approved |
no |
| Call Number |
DAG @ dag @ SFM2007a |
Serial |
891 |
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| Author |
Gemma Sanchez; Alicia Fornes; Joan Mas; Josep Llados |
| Title |
Computer Vision Tools for Visually Impaired Children Learning |
Type |
Journal |
| Year |
2007 |
Publication |
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DAG |
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no |
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DAG @ dag @ SFM2007b |
Serial |
892 |
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| Author |
Ernest Valveny; Philippe Dosch |
| Title |
A General Framework for the Evaluation of Symbol Recognition Methods |
Type |
Journal |
| Year |
2007 |
Publication |
International Journal on Document Analysis and Recognition, vol. 9(1), pp 59–74 |
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DAG |
Approved |
no |
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DAG @ dag @ VaD2007 |
Serial |
893 |
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| Author |
Josep Llados; J. Lopez-Krahe; D. Archambault |
| Title |
Special Issue on Information Technologies for Visually Impaired People |
Type |
Journal |
| Year |
2007 |
Publication |
Novatica |
Abbreviated Journal |
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| Volume |
186 |
Issue |
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Pages |
4-7 |
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DAG |
Approved |
no |
| Call Number |
DAG @ dag @ LLA2007a |
Serial |
903 |
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| Author |
Josep Llados; Dimosthenis Karatzas; Joan Mas; Gemma Sanchez |
| Title |
A Generic Architecture for the Conversion of Document Collections into Semantically Annotated Digital Archives |
Type |
Journal |
| Year |
2008 |
Publication |
Journal of Universal Computer Science |
Abbreviated Journal |
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14 |
Issue |
18 |
Pages |
2912–2935 |
| Keywords |
Median Graph, Graph Embedding, Graph Matching, Structural Pattern Recognition |
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DAG |
Approved |
no |
| Call Number |
DAG @ dag @ LKM2008 |
Serial |
1142 |
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