Person identification system for future digital tv with intelligence - 2007
Min-cheol Hwang, Le Thanh Ha, Nam-hyeong Kim, Chun-su Park, Sung-jea Ko
Intelligent digital TV (iDTV) is a future digital TV with intelligence which can
automatically provide user-personalized services for each audience. For the
user-personalized services, the iDTV should recognize audiences in real-time. In
this paper, we define a novel structure of the iDTV and propose a real-time
person identification system in the iDTV that analyzes captured images and
recognizes ... hiện toàn bộ
#Digital TV #HDTV #Face recognition #Face detection #Intelligent sensors #Competitive intelligence #Computational efficiency #Environmental management #Biometrics #Fingerprint recognition
Framework for the composition and interoperation of the home appliances based on heterogeneous middleware in residential networks Tập 48 Số 3 - Trang 484-489 - 2002
Song Yean Cho
Residential networks enable one to control and to compose functions on different
home appliances, but the diversity of home appliances brings various kinds of
middleware into a house. If home appliances in the same house use different
middleware, they cannot know one another existence needless to say using one
another functions. To solve the problem of the Tower of Babel in residential
networks, t... hiện toàn bộ
#Home appliances #Middleware #Home automation #Intelligent networks #Poles and towers #Software prototyping #Joining processes #Printers #Automatic control #Turning
A fast audio bit allocation technique based on a linear R-D model Tập 48 Số 3 - Trang 662-670 - 2002
Chun-Yi Lee, Yao-Chun Fang, Hsiao-Chiang Chuang, Chung-Neng Wang, Tihao Chiang
The MPEG-1 Layer III audio coding is most widespread digital audio format on the
Internet. Its encoder is more complicated than the other layers in the MPEG-1
audio specification, where the bit allocation constitutes significant part of
the total computational load. This paper describes a fast bit allocation
technique using a novel linear model to compute the bitrate and the global gain
of the inn... hiện toàn bộ
#Bit rate #Digital audio players #Audio coding #Internet #Quantization #Distortion measurement #Velocity measurement #Noise measurement #Signal to noise ratio #Nuclear magnetic resonance
Integrated system for multimedia delivery over broadband IP networks Tập 48 Số 3 - Trang 564-574 - 2002
F. Lohan, I. Defee, M. Vlad, A. Pop, P. Sastry
In this paper we describe an integrated system for delivering DVB and VoD
streams to consumer terminals (STB+TV) over broadband IP networks. The system
covers the servers necessary for DVB capture and delivery over IP, VoD servers,
system management components and the user access to provided content. The
described system was implemented at Tampere University of Technology. The
performance, scalabi... hiện toàn bộ
#Multimedia systems #IP networks #Streaming media #Network servers #Digital video broadcasting #Bandwidth #Web server #Internet #US Department of Transportation #TV
Comparison of two guided scrambling schemes for optical disks Tập 48 Số 3 - Trang 584-588 - 2002
A. Kunisa
A guided scrambling (GS) coding technique is practically used to suppress the DC
component within a channel bit stream. It is a candidate for a DC-free code in
the next generation of the DVD standard. Typically the GS technique uses a
convolutional operation or an addition operation in the Galois field (GF). This
paper evaluates the performance of the convolutional GS and GF-addition GS on
DC-comp... hiện toàn bộ
#Hardware #DVD #Error probability #Convolutional codes #Convolution #Decoding #Digital systems #Code standards #Disk recording #Digital recording
Adaptive QoS control of multimedia transmission over band-limited networks Tập 48 Số 3 - Trang 644-649 - 2002
G.Y. Hong, A.C.M. Fong, B. Fong
Consumers increasingly demand high quality of service (QoS) for multimedia
applications. Application-layer QoS control mechanisms that do not make specific
references to coding semantics tend to provide the most robust solutions for
delivery of multimedia data over band-limited networks. We propose an adaptive
and robust QoS algorithm for band-limited networks that integrates explicit
receiver-sen... hiện toàn bộ
#Programmable control #Adaptive control #Quality of service #Shape control #Forward error correction #Communication system control #Bandwidth #Data communication #Error correction #Robust control
A frame-based MPEG characteristics extraction tool and its application in video transcoding Tập 48 Số 3 - Trang 522-532 - 2002
Kan-Li Huang, Yi-Shin Tung, Ja-Ling Wu, Po-Kang Hsiao, Hsien-Shuo Chen
We present a frame-based characteristics extraction tool, which can retrieve
meaningful information from MPEG-compressed bitstreams. Taking advantage of the
extracted information, we present a general architecture for MPEG video
transcoding, which can transcode a given MPEG video bitstream into various MPEG
video bitstreams with different characteristics. We also implement an
MPEG-2-to-MPEG-4 vide... hiện toàn bộ
#Transcoding #Video compression #Transform coding #Data mining #Decoding #Application software #Information retrieval #Bit rate #Gunshot detection systems #MPEG 4 Standard
Improving image resolution by adaptive back-projection correction techniques Tập 48 Số 3 - Trang 409-416 - 2002
G. Messina, S. Battiato, M. Mancuso, A. Buemi
The paper describes a back-projection based algorithm, improved by adaptive
techniques, able to reconstruct a high-resolution image from multiple
low-resolution frames. The proposed approach is mainly based on a specific
metric, the uncertainty degree, used in pixel reconstruction and on a local
auto-iterative approach for error correction. Using uncertainty, the amount of
computation is sensibly ... hiện toàn bộ
#Image resolution #Image reconstruction #Uncertainty #Motion estimation #Iterative methods #Error correction #Image sensors #Costs #Layout #Frequency domain analysis
NAMBA: location-aware collaboration system for shopping and meeting Tập 48 Số 3 - Trang 470-477 - 2002
T. Yoshino, T. Muta, J. Munemori
We have developed a location-aware collaboration system called NAMBA. The system
exchanges position information and users' situation to one another using a PDA
with built-in PHS and a GPS receiver in real time. NAMBA is a two-way
communication system that sends position information and messages to one
another. Users can see other users' position on the screen of a PDA easily using
NAMBA. NAMBA has... hiện toàn bộ
#Collaboration #Personal digital assistants #Global Positioning System #Real time systems #Mobile handsets #Cities and towns #Design engineering #Systems engineering and theory #Mobile radio mobility management #Information systems