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ON VOLUME DATA REDUCTION FOR LIDAR DATASETS
LiDAR Redundancy Q-tree Big Data Problem Topography DTM
2018/11/9
This paper discusses a current issue for several experimental science disciplines, which is the Big Data Problem (BDP). This research study focused on light intensity and ranging (LiDAR) datasets, whi...
LIDAR Data Reduction for Efficient and High Quality DEM Generation
LiDAR Laser Scanning DEM Interpolation Catchment Data Reduction
2015/12/8
Airborne Light Detection and Ranging (LiDAR) - also referred to as Airborne Laser Scanning (ALS), provides means for high density and high accuracy topographic data acquisition. LiDAR data have become...
An Insitu Single-pointed Wavelet-Based Method for Noise Reduction in SAR Images
Synthetic Aperture Radar (SAR) Speckle noise Insitu Single-pointed Wavelet-based (ISPW) Method,
2015/11/20
Speckle noise caused by interference of electromagnetic waves complicates Synthetic aperture radar (SAR) images to be interpreted and further practical application, therefore reducing speckle noise an...
Wavelet Speckle Reduction for SAR Imagery Based on Edge Detection
Image processing Filtering Feature detection Geography Image understanding
2015/11/20
This paper introduces a wavelet transform speckle reduction algorithm for Synthetic Aperture Radar (SAR) imagery based on edge detection. Existing speckle algorithm can efficiently reduce the speckle ...
EFFECTS AND PERFORMANCE OF SPECKLE NOISE REDUCTION FILTERS ON ACTIVE RADAR AND SAR IMAGES
RADAR SAR Images Noise Speckle Filtering Adaptive Filter
2015/8/17
Reduction of speckle noise is one of the most important processes to increase the quality of radar coherent images. Image variances
or speckle is a granular noise that inherently exists in and degra...
Design of an Adaptive Particle Filter Based on Variance Reduction Technique
particle filter variance reduction degeneracy
2010/2/23
The main problem of particle filter (PF) in nonlinearstate estimation is the particle degeneracy. Resampling operationsolves degeneracy to some extent, but it results in the problem ofsample impoveris...
Pattern Synthesis with Uniform Circular Arrays for the Reduction of WCDMA Intercell Interference
Antenna arrays WCDMA intercell interference
2009/7/28
The deployment of advanced antenna arrays at the base stations of cellular systems is a key technique in reducing intercell interference, and thus increasing the number of served users. Uniform circul...
Drift Compensated Coding Optimization for Fast Bit-rate Reduction Transcoding
Drift Compensated Coding Fast Bit-rate Reduction Transcoding
2010/12/17
Bit rate adaptation is one of the basic problems in universal multimedia access. Therefore, in many cases, there exists a strong requirement for a very fast transcoding implementation. Usually, open-l...
Key Techniques of Bit Rate Reduction for H.264 Streams
Key Techniques Bit Rate Reduction H.264 Streams
2010/12/14
In previous techniques of bit rate reduction transcoding,reusing the mode of the input MB is widely adopted. However, directly re-using the mode of input MB will cause additional losses for H.264 bit-...
ON THE HARMONICS REDUCTION USING WAVELET BASED SIGNAL PROCESSING
harmonic reduction wavelet analysis active filter
2010/1/13
This paper presents a method for calculating the reference currents needed for
the command of an active filter. By using the Discrete Wavelet Transform (DWT) the
high-frequency components of the cur...
The Concept of the Polarimetric Matched Signal & Image Filters: Application to Radar Target versus Speckle Reduction & Optimal Background Clutter Discrimination in Microwave Sensing and Imaging
The Concept of the Polarimetric Matched Signal Image Filters Application to Radar Target versus Speckle Reduction Optimal Background Clutter Discrimination Microwave Sensing and Imaging
2014/4/16
The Concept of the Polarimetric Matched Signal & Image Filters: Application to Radar Target versus Speckle Reduction & Optimal Background Clutter Discrimination in Microwave Sensing and Imaging。