International Symposium on VIPromCom Video/Image Processing and Multimedia Communications
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Integration of DV to D9 and DVCAM to MPEG-2 system
- Trang 421-426
More and more broadcasters are turning to DV systems. Until now, there was no
easy way to transfer the DV signal to other digital systems. With JVCs SA-DV 60E
we have an efficient and easy way to transfer the DV signals to DV9 machines.
Sony introduced an option board for the DSR-2000 that converts DVCAM A/V data
streams into 50 Mbps conforming to the syntax specification of the 4:2:2P@ML
standard...
#Video equipment #Video compression #Image coding #Production #Discrete cosine transforms #Turning #Manufacturing #Hard disks #Digital systems #Motion pictures
The design and implementation of a Chinese financial invoice recognition system
- Trang 79-82
This paper designs and implements a financial invoice recognition system based
on the features of the Chinese financial invoice. By using the linear whole
block moving method in each vertical segment, a new fast algorithm is put
forward to detect and rectify slanted images. To distinguish the different form
types (the foundation necessary for locating the form fields, filtering the form
lines, etc...
#Character recognition #Optical character recognition software #Image recognition #Image segmentation #Image processing #Pattern recognition #High speed optical techniques #Optical filters #System testing #Laboratories
How to plan, develop and evaluate multimedia applications - a simple model
- Trang 111-115
This document describes a model for the planning, development and evaluation of
educational multimedia applications (which resulted in the author's master's
thesis in the area of multimedia systems). Having in count the results obtained
with the referred model, it is being used at the Escola Superior de Ciencias
Empresariais (Superior School of Management Sciences in the city of Setubal,
Portugal)...
#Education #Multimedia systems #Cities and towns #Prototypes #Testing #Problem-solving #Region 8 #Image processing #Multimedia communication #Production
Face recognition using a similarity-based measure in image database for crime investigation
- Trang 87-92
A method to handle searching a face image database (FID) is proposed to support
police officers when searching criminal records from a central registration
database system (CRDS). The proposed method assumes that each FID consists of a
fixable object and object correlation. The proposed method employs a database
search, so that all images with a similarity-based measure are retrieved.
Consequently...
#Face recognition #Image databases #Pixel #Image retrieval #Image storage #Information retrieval #Eyebrows #Size measurement #Ear #Informatics
Deployment of wavelet transform to VOP codec scheme
- Trang 233-237
The work explains the way we deploy the wavelet transform in the object-based
video codec scheme proposed in our previous research (see Tran, S.M. et al., J.
Commun. and IT Sciences Association, vol.LVI, no.4, 2001). Video objects are
first extracted from a conventional frame-based video sequence. By representing
the video objects of interest with the so-called constrained Delaunay mesh
structures...
#Wavelet transforms #Codecs #Shape #Image coding #MPEG 4 Standard #Image reconstruction #Video compression #Tracking #Discrete cosine transforms #Power generation economics
A drift compensation architecture for DCT-pyramid video coding
- Trang 315-318
A new-layered video coding scheme is proposed for efficient spatial scalability
based on the DCT pyramid. The proposed scheme is introduced to eliminate the
drift error associated with reduced resolution video. A new algorithm to predict
the motion vector of the reduced resolution video from the higher resolution
motion vectors is presented. Based on simulation results, the proposed scheme
achieve...
#Video coding #Discrete cosine transforms #Scalability #Spatial resolution #Bit rate #Motion compensation #Frequency #Video compression #Bandwidth #Decoding
Hybrid N-feature extraction with fuzzy integral in human face recognition
- Trang 93-98
This paper introduces an efficient method for human face recognition that
employs a set of different kinds of feature domains with RBF neural network
classifiers, and which is denoted the hybrid N-feature (HNF) human face
recognition. A combination of RBF neural network classifiers with fuzzy integral
has been proposed to achieve face classification with higher performance. The
feature extractor p...
#Humans #Face recognition #Neural networks #Fuzzy neural networks #Feature extraction #Data mining #Face detection #Fuzzy systems #Principal component analysis #Discrete cosine transforms
The digital image transmission simulation by the model of the digital transmission channel
- Trang 401-406
The contribution deals with the simulation of non-compressed digital image
transmission by a model of the digital transmission channel in baseband. The
transmitted digital image corresponds to the CCIR ITU R-601 recommendation that
is set up as a standard in digital video broadcasting baseband image processing.
The channel is modelled as a digital filter with variable parameters and type of
the ch...
#Digital images #Digital video broadcasting #Digital TV #Baseband #Image sampling #Chromium #Mathematical model #Image coding #Image processing #Satellite broadcasting
Adaptive object-based image compression using wavelet packets
- Trang 183-187
In this work we discuss an object-based wavelet image coding system which
employs the wavelet packet best basis algorithm to adapt to each object
separately. In addition to the increased functionality inherent to any
object-based codec, the enhanced rate-distortion performance for images
exhibiting objects with different frequency properties is shown.
#Image coding #Wavelet packets #Basis algorithms #Rate-distortion #Frequency #Codecs #MPEG 4 Standard #Scientific computing #Transform coding #Image resolution
Complex genomic signals
- Trang 19-24
An original tetrahedral representation of the genetic code (GC) is presented. It
is shown that the dimensionality of the genomic signal representation can be
reduced by projecting the genetic code tetrahedron on an adequately oriented
plane, leading to the complex representations of the GC. On these bases, optimal
symbolic-to-digital mappings of the linear, one-dimensional and one-directional
stra...
#Genomics #Bioinformatics #Genetics #Signal representations #Lead compounds #Signal mapping #Amino acids #Signal processing #Digital signal processing #Signal analysis