Sectioned Restoration of Blurred Star Image with Space-Variant Point Spread

被引：2

作者：

Liu, Tianlang ^{[1
]}

Sun, Kaimin ^{[1
]}

Liu, Chaoshan ^{[1
]}

机构：

[1] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Hubei, Peoples R China

来源：

INFORMATION TECHNOLOGY AND INTELLIGENT TRANSPORTATION SYSTEMS, VOL 2 | 2017年 / 455卷

关键词：

Star sensor; Space-variant psf; Sectioned image restoration; High dynamic conditions; ANGULAR VELOCITY ESTIMATION; IDENTIFICATION; TRACKER;

D O I：

10.1007/978-3-319-38771-0_17

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In order to ensure the accuracy of star sensor in high dynamic conditions, the sectional processing scheme is proposed for space-variant motion blurs. The degradation of star image may be characterized by a space-variant point spread function (PSF), and the PSF of blurred star spot was formulated by its nonuniform velocity across the image plane. Then, the image is divided into several rectangular sections and each contains an interesting star spot. The center of section is the location of star predicted by the attitude measurement equation, and its size is determined by the velocity of star spot and exposure time. Further, the PSF in each section can be approximately space-invariant. The scheme is illustrated by performing attitude determination against a restored space-variant blurred star image.

引用

页码：175 / 186

页数：12

共 50 条

[21] Fluorescence Microscopic Image Three-dimensional Reconstruction Based on Space-variant Point Spread Function
Wang, Yu
Zhang, Na
Jiang, Huan
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMPUTER NETWORKS AND COMMUNICATION TECHNOLOGY (CNCT 2016), 2016, 54 : 537 - 545
[22] Blind restoration of space-variant Gaussian-like blurred images using regional PSFs
Lior Graham
Yitzhak Yitzhaky
Signal, Image and Video Processing, 2019, 13 : 711 - 717
[23] Blind Space-Variant Single-Image Restoration of Defocus Blur
Bar, Leah
Sochen, Nir
Kiryati, Nahum
SCALE SPACE AND VARIATIONAL METHODS IN COMPUTER VISION, SSVM 2017, 2017, 10302 : 109 - 120
[24] SPACE-VARIANT IMAGE FORMATION
LOHMANN, AW
PARIS, DP
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1965, 55 (08) : 1007 - &
[25] SPACE-VARIANT AND COLOR IMAGE-RESTORATION USING KALMAN FILTERING
TEKALP, AM
PAVLOVIC, G
1989 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-3, 1989, : 9 - 12
[26] MODEL-BASED SEGMENTATION AND SPACE-VARIANT RESTORATION OF BLURRED IMAGES BY DECISION-DIRECTED FILTERING
TEKALP, AM
KAUFMAN, H
WOODS, JW
SIGNAL PROCESSING, 1988, 15 (03) : 259 - 269
[27] Image restoration using space-variant Gaussian scale mixtures in overcomplete pyramids
Guerrero-Colon, Jose A.
Mancera, Luis
Portilla, Javier
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2008, 17 (01) : 27 - 41
[28] A Flexible Space-Variant Anisotropic Regularization for Image Restoration with Automated Parameter Selection
Calatroni, Luca
Lanza, Alessandro
Pragliola, Monica
Sgallari, Fiorella
SIAM JOURNAL ON IMAGING SCIENCES, 2019, 12 (02): : 1001 - 1037
[29] Restoration of images with piecewise space-variant blur
Bar, Leah
Sochen, Nir
Kiryati, Nahum
SCALE SPACE AND VARIATIONAL METHODS IN COMPUTER VISION, PROCEEDINGS, 2007, 4485 : 533 - +
[30] Restoration of retinal images with space-variant blur
Marrugo, Andres G.
Millan, Maria S.
Sorel, Michal
Sroubek, Filip
JOURNAL OF BIOMEDICAL OPTICS, 2014, 19 (01)

← 1 2 3 4 5 →