WSCG '2015: Short Papers Proceedings Domovská stránka kolekce Zobrazit statistiky

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Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 22
Voronin, V. , Marchuk, V. , Semenishchev, E. , Maslennikov, S. , Svirin, I.
Inpainted image quality assessment based on machine learning

In many cases inpainting methods introduce a blur in sharp transitions in image and image contours in the recovery of large areas with missing pixels and often fail to recover curvy boundary edges. Quantitative metrics of inpainting results currently do not exist and researchers&#x...

Kurmi, Vinod K , Jain, Garima , Venkatesh, KS
Robust hand gesture recognition from 3D data

In this paper, we use the output of a 3D sensor (ex. Kinect from Microsoft) to capture depth images of humans making a set of predefined hand gestures in various body poses. Conventional approaches using Kinect data have been constrained by the limitation of the human...

Merz, Johannes , Getto, Roman , Landesberger, Tatiana von , Fellner, Dieter W.
Analysis of 3D mesh correspondences concerning foldovers

Foldovers (i.e., folding of triangles in a 3D mesh) are artifacts that cause problems for morphing. Mesh morphing uses vertex correspondences among the source and the target mesh to define the morphing path. Although there exist techniques for making a foldover-free mesh morphing, ...

Jribi, Majdi , Ghorbel, Faouzi
A geodesic based approach for an accurate and invariant 3D surfaces representation

In this paper, we propose a novel 3D invariant surface representation under the 3D motion group M(3). It is obtained by combining two main representations: the three-polar representation and the one defined by the radial line curves from a starting point. The retained invariant...

Boettcher, Guilherme Bertini , Comba, João , Dal Sasso Freitas, Carla
News Patterns: how press interacts with social networks

Social media has played a big part in the adaptation process for newspapers and magazines, but innovating while going through a recession has led to a hasty evolution and automated processes for very different media. While existing socialmedia studies and state of the art visu...

Gonçalves, João , Ribeiro, David , Soares, Filipe
Perspective correction of panoramic images created by parallel motion stitching

This paper deals with the problem of correcting the perspective distortion in panoramic images created by parallel motion stitching. The distortion is revealed by lines that appear to converge at the infinity, but are actually parallel. A camera cart shoots from multi-viewpoints aiming&...

Meier, Benjamin-Heinz , Trapp, Matthias , Döllner, Jürgen
VideoMR: a map and reduce framework for real-time video processing

This paper presents VideoMR: a novel map and reduce framework for real-time video processing on graphic processing units (GPUs). Using the advantages of implicit parallelism and bounded memory allocation, our approach enables developers to focus on implementing video operations without taking...

Schiffner, Daniel , Stockhausen, Claudia , Ritter, Marcel
Surfaces for point clouds using non-uniform grids on the GPU

Clustering data is a standard tool to reduce large data sets, such as scans from a LiDAR, enabling real-time rendering. Starting from a uniform grid, we redistribute points from and to neighboring cells. This redistribution is based on the properties of the uniform grid and&#x...

Kovacs, Viktor , Tevesz, Gabor
Edge-aware normal estimation by rotated bilateral sampling

In this paper we deal with edge preserving surface normal estimation and crease edge detection in discretized range images. Such range images consist of few discrete quantization levels due to the data acquisition method (short base distance stereo), or when the distance variation ...

Fumero, Francisco , Sigut, Jose , Alayón, S. , González-Hernández, M. , González de la Rosa, M.
Interactive tool and database for optic disc and cup segmentation of stereo and monocular retinal fundus images

Glaucoma is one of the leading causes of irreversible blindness in the world. Early detection is essential to delay its evolution and avoid vision loss. For this purpose, retinal fundus images can be used to assess the cup-to-disc ratio, the main indicator of glaucoma. Several...

Sigut, Jose , Fumero, Francisco , Nuñez, Omar
Over- and under-segmentation evaluation based on the segmentation covering measure

Very few measures intended for evaluating the quality of image segmentations account separately for over- and under-segmentation. This distinction is highly desirable in practice because in many applications undersegmentation is considered as a much serious issue than over-segmentation. In this p...

Chen, Ying-Nong , Wang, Yu-Chen , Han, Chin-Chuan , Fan, Kuo-Chin
Hyperspectral image xlassification using a general NFLE transformation with kernelization and fuzzification

Nearest feature line (NFL) embedding (NFLE) is an eigenspace transformation algorithm based on the NFL strategy. Based on this strategy, the NFLE algorithm generates a low dimensional space in which the local structures of samples in the original high dimensional space are preserved.&#x...

Baum, David
Introducing aesthetics to software visualization

In software visualization, but also in information visualization in general, there is a great need for evaluation of visualization metaphors. To reduce the amount of empirical studies a computational approach has been applied successfully, e.g., to graph visualization. It is based on me...

Fujimoto, Keisuke , Watanabe, Takashi
3D reconstruction of outdoor scenes using structure from motion and depth data

Recently, low-cost and small RGB-D sensors appear massively at the entertainment market. These sensors can acquire colored 3D models using color images and depth data. However, a limitation of the RGB-D sensor is that sunlight interferes with the pattern projecting LED. The sensor ...

Last, Philipp , Hering-Bertram, Martin , Jung, Thomas , Linsen, Lars
Visual encoding of automatic identification system (AIS) data for radar systems

The Automatic Identification System (AIS) is a maritime system mostly used for automatically exchanging tracking and other relevant information between vessels. It supports decision making of nautical personnel such as master mariners. AIS data are multivariate including many aspects for identifi...

Denisova, A.Yu. , Myasnikov, Vladislav
Anomaly detection using spectral mismatch between anomaly pattern and its neighborhood

In this paper we present a novel algorithm for anomaly detection in multichannel images. Proposed algorithm uses spectral mismatch criterion to describe anomalous properties of small image regions. The idea behind the criterion is that the brightness of the anomalous region can't be...

Myasnikov, Vladislav
Efficient linear local features of digital signals and images: computational and qualitative properties

The paper presents the analysis of efficiency of two original approaches to the construction of the sets of linear local features (LLF), which are used for digital signal and image processing. The first approach is based on generating of LLF set, which consists of separately&#...

Ayyildiz, Kahraman , Conrad, Stefan
Applying filters to repeating motion based trajectories for video classification

The presented video classification system is based on the trajectory of repeating motion in video scenes. Further on this trajectory has a certain direction and velocity at each time frame. As the position, direction and velocity of the motion trajectory evolve in time, we con...

Gonçalves, Diego Addan , Todt, Eduardo , Sanchez Garcia, Laura
3D avatar for automatic synthesis of signs for the sign languages

This paper discusses a synthesis system that generates, from a XML input representing gesture descriptors, a vector of configuration parameters that are executed by a 3D Avatar for use in the animation of Sign Languages. The development of virtual agents able to reproduce gestures&...

Kurzejamski, Grzegorz , Zawistowski, Jacek , Sarwas, Grzegorz
A framework for robust object multi-detection with a vote aggregation and a cascade filtering

This paper presents a framework designed for the multi-object detection purposes and adjusted for the application of product search on the market shelves. The framework uses a single feedback loop and a pattern resizing mechanism to demonstrate the top effectiveness of the state-of-the-...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 22