Results 221 to 230 of about 164,414 (266)

Chromatic coordinates in HDR image coding

SPIE Proceedings, 2008
The paper presents an undertaking to develop most compact high dynamic range image compression format and shows that chromatic color coordinate system plays a central role in such development. Important design considerations, such as conditions and criterions of data accuracy, efficiency and characteristics of color space, are addressed along the way ...
Sergey N. Bezryadin, Pavel Burov, Igor Tryndin   +2 more
openaire   +1 more source

Segmentation of Images on Polar Coordinate Meshes

2007 IEEE International Conference on Image Processing, 2007
The Chan-Vese level set algorithm has been successfully applied to segmentation of images on Cartesian coordinate meshes, including ordinary planar images. In this paper we present a Chan-Vese model for segmentation of images on polar coordinate meshes, such as topography and remote sensing images.
Kenji Hara, Ryo Kurazume, Kohei Inoue, Kiichi Urahama   +3 more
openaire   +1 more source

Laplacian Coordinates for Seeded Image Segmentation

2014 IEEE Conference on Computer Vision and Pattern Recognition, 2014
Seed-based image segmentation methods have gained much attention lately, mainly due to their good performance in segmenting complex images with little user interaction. Such popularity leveraged the development of many new variations of seed-based image segmentation techniques, which vary greatly regarding mathematical formulation and complexity.
Wallace Casaca, Luis Gustavo Nonato, Gabriel Taubin   +2 more
openaire   +1 more source

Coordinates for instant image cloning

ACM SIGGRAPH 2009 papers, 2009
Seamless cloning of a source image patch into a target image is an important and useful image editing operation, which has received considerable research attention in recent years. This operation is typically carried out by solving a Poisson equation with Dirichlet boundary conditions, which smoothly interpolates the discrepancies between ...
Zeev Farbman, Gil Hoffer, Yaron Lipman, Daniel Cohen-Or, Dani Lischinski   +4 more
openaire   +1 more source

Influence of Individual Fashion Item Images on the Image of Coordinates

2017
Conventional coordination suggestion systems do not consider the combined effect of the images of the individual items. In this research, we clarify the relationship between the image of tops and bottoms and their combinations. Using the semantic differential method, a questionnaire survey was conducted for images of tops, bottoms, and coordinates, and
Miu Sato, Toshikazu Kato
openaire   +1 more source

LLE Coordinates for Image Blending

2014 International Conference on Virtual Reality and Visualization, 2014
Image blending is to paste a source patch onto a target image, which has received considerable attention. While gradient-domain blending is powerful, it suffers from poor scalability. This paper proposes a novel real-time image blending algorithm. We first construct Locally Linear Embedding (LLE) coordinates by utilizing the local geometry of source ...
Yufeng Tang, Dongqing Zou, Feng Ding, Jianwei Li, Xiaowu Chen   +4 more
openaire   +1 more source

The Acquisition of Kiwifruit Feature Point Coordinates Based on the Spatial Coordinates of Image

2016
How to obtain the spatial coordinates of kiwi fruit has been one of the key techniques for kiwi fruit harvesting robot. In this paper, the writer proposes a unique way to obtain the spatial coordinates of the features of kiwi fruit from the bottom of the target fruit based on the growth characteristics and scaffolding cultivation pattern ...
Bin Wang, Zixiao Chen, Jianmin Gao, Longsheng Fu, Baofeng Su, Yongjie Cui   +5 more
openaire   +1 more source

Seismic Imaging in Stratigraphic Coordinates

81st EAGE Conference and Exhibition 2019, 2019
Summary We propose to perform seismic imaging using stratigraphic coordinates, a coordinate system that follows the shape of each reflector. We reformulate the wave propagation problem to perform seismic imaging directly in the stratigraphic coordinates by using a modification of Riemannian wave propagation.
H. Kaur, S. Fomel
openaire   +1 more source

Self-imaging in polar coordinates

Journal of the Optical Society of America A, 1988
This paper deals with the phenomenon of self-imaging. Starting from the results presented by Montgomery [ J. Opt. Soc. Am.55, 373 ( 1965)], the general shape of the function describing the object that self-images (under coherent illumination) is derived.
openaire   +1 more source

Saturated independent color coordinates for image alignment

Object recognition supported by user interaction for service robots, 2003
Image alignment should be based on features that are robust with respect to phenomena such as global illumination changes, shading variations, and local highlights. While hue provides a natural degree of invariance to these phenomena, we show that it has several deficiencies in terms of gradient-based image alignment.
Thomas F. El-Maraghi, Allan D. Jepson
openaire   +1 more source