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CVPR
2008
IEEE
14 years 12 months ago
Single-image vignetting correction using radial gradient symmetry
In this paper, we present a novel single-image vignetting method based on the symmetric distribution of the radial gradient (RG). The radial gradient is the image gradient along t...
Yuanjie Zheng, Jingyi Yu, Sing Bing Kang, Stephen ...
CVPR
2008
IEEE
14 years 10 months ago
Video segmentation: Propagation, validation and aggregation of a preceding graph
In this work, video segmentation is viewed as an efficient intra-frame grouping temporally reinforced by a strong inter-frame coherence. Traditional approaches simply regard pixel...
Siying Liu, Dong Guo, Chye Hwang Yan, Sim Heng Ong
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CVPR
2009
IEEE
16 years 5 months ago
An Empirical Study of Context in Object Detection
This paper presents an empirical evaluation of the role of context in a contemporary, challenging object detection task – the PASCAL VOC 2008. Previous experiments with context...
Alexei A. Efros, Derek Hoiem, James Hays, Martial ...
CVPR
2008
IEEE
16 years 29 days ago
Accurate Eye Center Location and Tracking Using Isophote Curvature
The ubiquitous application of eye tracking is precluded by the requirement of dedicated and expensive hardware, such as infrared high definition cameras. Therefore, systems based s...
Roberto Valenti, Theo Gevers
CVPR
2008
IEEE
16 years 5 days ago
Dimensionality reduction by unsupervised regression
We consider the problem of dimensionality reduction, where given high-dimensional data we want to estimate two mappings: from high to low dimension (dimensionality reduction) and f...
Miguel Á. Carreira-Perpiñán, ...