搜索结果: 16-29 共查到“信息与通信工程 Quality”相关记录29条 . 查询时间(0.338 秒)
Implementation of Dual-Polarization on an Airborne Scatterometer and Preliminary Data Quality
radar scatterometry c-band ku-band airborne radar IWRAP ocean wind vectors
2014/12/8
The Imaging Wind and RAin Profiler (IWRAP) is an airborne scatterometer system built and operated by University of Massachusetts Amherst's Microwave Remote Sensing Laboratory (MIRSL). The radar is sea...
After having recently discovered a new way to propagate multiple beams of light through a single strand of optical fiber, engineers at the University of Wisconsin-Milwaukee (UWM) now have found that t...
Fusion of terrasar-x and rapideye data: a quality analysis
Image fusion TerraSAR-X RapidEye Multi-sensor
2013/4/22
This research compares and evaluates image fusion algorithms to achieve spatially improved images while preserving the spectral information. In order to compare the performance of fusion techniques bo...
QUALITY ANALYSIS OF VEHICLE-BASED SEQUENCE IMAGES RELATIVE ORIENTATION BASED ON COMPUTER VISION
Relative Orientation Direct Geo-referencing Computer vision Sequence images Mobile mapping SIFT RANSAC
2012/8/1
Analyzed the quality and its influence factors of relative orientation of vehicle-based sequence images by comparing with the result obtained from Position & Orientation System using Direct Geo-refere...
QUALITY ANALYSIS ON RANSAC-BASED ROOF FACETS EXTRACTION FROM AIRBORNE LIDAR DATA
Analysis Quality Algorithms Extraction LIDAR Building
2012/7/31
RANSAC algorithm is a robust method for model estimation. It is widely used in the extraction of geometry primitives and 3D model reconstruction. However, there has been relatively little comprehensiv...
QUALITY MONITORING OF LARGE STEEL BUILDINGS USING TERRESTRIAL LIDAR TECHNIQUE
Terrestrial LIDAR Point cloud Extraction of feature points Construction Quality Monitoring
2012/7/24
Terrestrial LIDAR Technology is used for quality monitoring in construction of large-scale steel buildings to solve the problem of quick and precise inspecting for large steel structure. Point Cloud i...
Error Resilient Dual Frame Motion Compensation with Uneven Quality Protection
Motion Compensation Uneven Quality Protection
2010/6/30
In jump update dual frame motion compensation (JU-DFMC), two reference buffers
are utilized for motion compensation, as shown in Fig. 1, the first reference buffer
contains the most recently decoded...
Quality assessment of high resolution radar DSMs
SAR Optical Imagery TerraSAR-X IKONOS DSM Quality Generation Comparison
2010/6/12
Radar remote sensing has a significant role in remote sensing technologies and develops rapidly. A series of new synthetic aperture radar (SAR) satellites has been launched to space having various ope...
A ROI Quality Adjustable Rate Control Scheme for Low Bitrate Video Coding
ROI Quality Adjustable Rate Control Scheme Bitrate Video Coding
2009/12/31
This paper proposed a novel Region of Interest (ROI) based rate control algorithm for video communication systems, in which the subjective quality of ROI can be adjusted
according to users’ requireme...
Image Quality Assessment Using Spatial Frequency Component
Image Quality Assessment Spatial Frequency Component
2008/12/31
Image quality assessment (IQA) is a crucial technique in perceptual image/video coding, because it is not only a ruler for performance evaluation of coding algorithms but also a metric for ratio-disto...
Depth Image Segmentation for Improved Virtual View Image Quality in 3-DTV
Depth Image Segmentation Improved Virtual View Image Quality
2007/12/31
A rate-based switch fabric called smoothed buffer crossbar has been proposed in our recent work. It can provide 100% rate-guaranteed service with only a two-cell buffer at each
crosspoint, and can al...
Rate-Distortion Modeling and its Application to Quality Layer Assignment in SVC/H.264 Fine-Granular SNR Scalable Videos
Rate-Distortion Modeling Quality Layer Assignment SVC/H.264 Fine-Granular SNR Scalable Videos
2007/12/31
To support efficient quality extraction in H.264/AVCbased scalable video coding, it’s important to obtain the rate-distortion (R-D) or distortion-rate (D-R) function of
each FGS packet. In this paper...
A Simple Algorithm for Constant Quality Reconstruction of Scalable video Using a New Analytical R-D Model,
Constant Quality Scalable video Analytical R-D Model
2006/12/31
In this paper, we first introduce the analytical R-D model of scalable video in our recent work. The R-D model is induced by the R-D analysis of Generalized Gaussian Distribution (GGD). Then we propos...
Quality Smoothing for FEC-based Multiple Description Coding
Quality Smoothing FEC-based Multiple Description Coding
2004/12/31
When sending a scalable video sequence over packet loss channels, one usually partitions it into groups of frames
(GOFs), and protects each GOF using the FEC based multiple description coding (FEC-MD...