نتایج جستجو برای: video signal

تعداد نتایج: 577513  

Journal: :CoRR 2013
Shuying Li Chen Gong Xiaodong Wang

We propose a scalable video broadcasting scheme over MIMO-OFDM systems. The scalable video source layers are channel encoded and modulated into independent signal streams, which are then transmitted from the allocated antennas in certain time-frequency blocks. Each receiver employs the successive group decoder to decode the signal streams of interest by treating other signal streams as interfer...

2013
Jingqiao LV

The image sensor is the most important part of video and still image processing line in digital video or still camera. Data of CMOS process will produce noise in long transmission distance; therefore it must first be amplified and integrated each pixel data. The choice of medium and apparatus for transmitting image and the other the control signal will be directly related to the quality and rel...

Journal: :International Journal of Circuits, Systems and Signal Processing 2021

Journal: :TELKOMNIKA (Telecommunication Computing Electronics and Control) 2015

2015
Mohammad A. Haque Kamal Nasrollahi Thomas B. Moeslund

Different biometric traits such as face appearance and heartbeat signal from Electrocardiogram (ECG)/Phonocardiogram (PCG) are widely used in the human identity recognition. Recent advances in facial video based measurement of cardio-physiological parameters such as heartbeat rate, respiratory rate, and blood volume pressure provide the possibility of extracting heartbeat signal from facial vid...

1988
Nobuyuki Yagi Ryoichi Yajima Kazumasa Enami Shigemi Mikami Nobuyuki Sasaki Kouji Hoshino Kazuhiro Harukawa Hideki Yamada

Two LSIs for real-time video signal processing have been developed; One a videosignal processing LSI (called the Picot) which can process dynamic images (time-varying images) at video rate (14.3MHz); and the other a network LSI (called the Picot-net) which connects a number of Picots and makes possible multi-processing. The Picot and the Picot-net have an architecture suitable for image signal ...

Journal: :The Journal of The Institute of Image Information and Television Engineers 2014

Journal: :The Journal of the Institute of Television Engineers of Japan 1990

2007
Heon Y. Yeom Sooyong Kang Taesoon Park

One of the challanges in building successful Video-on-demand system is how to transmit video signal from the server to the customers. Previous methods have been based upon the real-time modeling of video signals. Since the video signals are inherently variable bit rate(VBR), it is not easy to model the signals eeectively. Some of the widely used models are Markov modulated uid source and Markov...

2012
Jaya Krishna Sunkara Naga Chaithanya Sai Sudheer

As a rule, a video signal has high temporal redundancies due to the high correlation between successive frames. This redundancy has not been deflated enough by current video compression techniques. In this paper, we present a new video compression technique which tends to hard exploit the relevant temporal redundancy in the video to improve solidity efficiency with minimum processing complexity...

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