International Symposium on VIPromCom Video/Image Processing and Multimedia Communications
Cơ quản chủ quản: N/A
Các bài báo tiêu biểu
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
Speckle suppression by adaptive nonlinear filtering
- Trang 163-166
Using a good statistical model of speckle formation is important in designing an
adaptive filter for speckle reduction in ultrasound B-scan images. Most clinical
ultrasound imaging systems use a nonlinear logarithmic function to reduce the
dynamic range of the input echo signal and emphasize objects with weak
backscatter. The statistic of log-compressed images for Nakagami distribution
was derived...
#Speckle #Adaptive filters #Ultrasonic imaging #Filtering #Dynamic range #Backscatter #Statistical distributions #Nakagami distribution #Nonlinear filters #Liver
Simplified Boolean LUM smoothers
- Trang 159-162
The field of the research related to the implementation of nonlinear
order-statistic filters through their equivalent expression by positive Boolean
functions (PBF) lies in the conversion between the traditional filtering
functions and their corresponding PBF. In the case of the order-statistic LUM
smoothers, the complexity of minimal PBF depends on a smoothing parameter and
window size. In order ...
#Filters #Smoothing methods #Statistics #Filtering #Multimedia communication #Boolean functions #Electronic mail #Attenuation #Stacking #Region 8
Motion compensated multimode video coding for noisy channels
- Trang 279-282
Images with rapid motion are more or less degraded at low bit rate transmission.
Hence a motion compensation technique is implemented to improve the coding
efficiency. Performance in terms of bit rate is compared between motion
compensated and nonmotion-compensated multimode video coding. Multimode video
coding optimizes the tradeoff between the conflicting objectives of high
compression ratio and...
#Video coding #Motion estimation #Motion compensation #Videoconference #Video compression #Bit rate #Image coding #Video sequences #Degradation #Resilience
Implementation of the Hough transform by the on-line mode
- Trang 167-171
In this paper, the implementation of a new algorithm for the calculation of the
Hough transform (HT) with on-line arithmetic is introduced. This algorithm
allows reducing considerably the use of multipliers and tables of transfer. The
main idea consists of using a combination of incremental method with the usual
HT expression calling on-line calculation mode, which is efficient for real time
appli...
#Signal processing algorithms #Arithmetic #Equations #Transforms #Shape #Postal services #Image analysis #Robustness #Oscilloscopes #Cameras
The E-Learning & Consulting service based on the converged IN and IP networks
- Trang 15-18
This paper describes a multimedia service, E-Learning & Consulting, which
exploits integration between INs and IP-based networks. The first section
introduces a theme of convergence of telecom and data networks. The second
section presents current technology and services based on converged technology.
The last and the most important part illustrates a basic fact about our
multimedia service, E-Lea...
#Electronic learning #Intelligent networks #IP networks #Asynchronous transfer mode #Next generation networking #Web and internet services #Telecommunications #Communication industry #Communications technology #Circuits
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
Embedded lossy image compression based on wavelet transform
- Trang 195-199
This paper describes an algorithm for embedded lossy image compression based on
the discrete wavelet transform (DWT) and the zerotree coding scheme (EZW). In
this algorithm there are two lossy stages, a rounding operation after the
transform and a truncation of the coding output. A comparative study of
different filter banks (from different wavelet families and with different
filter lengths) for t...
#Image coding #Wavelet transforms #Discrete wavelet transforms #Filter bank #Multiresolution analysis #Low pass filters #Image reconstruction #Computer errors #Embedded computing #Discrete transforms
Neural realization of fast linear filters
- Trang 153-157
The paper presents a neural network architecture for linear filtering of signals
based on a scheme for fast calculation of orthogonal transformations. Compared
to the known standard filtering schemes the network offers high training
efficiency accompanied by substantial simplicity of realization. Additionally,
the same basic network topology enables realization of diverse transformations.
#Nonlinear filters #Neural networks #Filtering #Maximum likelihood detection #Neurons #Discrete Fourier transforms #Computer science #Computer architecture #Network topology #Image coding
Hệ thống giám sát video chủ động qua Internet Dịch bởi AI
- Trang 221-226
Chúng tôi đã thiết kế một hệ thống với giao diện người dùng trực quan cho việc
điều khiển camera từ xa và truy vấn hình ảnh qua Internet. Trong quá trình tìm
kiếm các giải pháp hiện có, chúng tôi nhận ra tầm quan trọng của một giao diện
người dùng được thiết kế tốt. Chúng tôi đã phát triển một hệ thống, cho phép
quan sát từ xa và điều khiển camera mạng JVC qua Internet. Giao diện người dùng
dựa tr...
#Internet #User interfaces #Computer vision #Control systems #Image databases #Web server #Digital cameras #Streaming media #Network servers #Visual databases