very low bit-rate video compression
Feature extraction for very low bit rate video coding
... A very basic aspect of the contents of almost all images is that it is a 3-D scene that is projected on to the 2-D ...in compression schemes in several ...conventional video coding can therefore be ...
45
Steganography integration into a low-bit rate speech codec
... significant bit (LSB) replacement / matching method towards the pulse code modulation (PCM) format voice data ...and video. It is very suitable to information hiding in the media compression ...
30
WIMAX OFDMA using high efficiency video Coding in VLSI accomplishment
... effective video communication for wireless transmission is High Efficiency Video Coding in WIMAX - ...Efficiency Video Coding) is recently prepared new video coding standard by ITU- T ...
5
Performance Analysis of Hybrid DWT and DCT based Compression Techniques for Low Bit Rate
... a compression method which is combination of two methods ...DWT compression is applied which produces a set of sub band coefficients till 2-D DCT method can b applied, and then the coefficients are ...
7
Low energy video processing and compression hardware designs
... HEVC uses quad-tree block structure as shown in Figure 1.3. Therefore, each frame is divided into coding units (CU) in the forward path. These CUs can be 8x8, 16x16, 32x32 or 64x64 pixel blocks. CUs in I frames are ...
111
Selecting stimuli parameters for video quality studies based on perceptual similarity distances
... and video QA studies are typically conducted to optimize and evaluate an imaging system or to evaluate and calibrate objective image quality (IQ) ...as compression level or image restoration ...(e.g. ...
11
Object Based Real Time Lossless Video Compression
... Object-BasedVideo Compression Technique for Very Low Bit-Rate Coding” 1997 describes an object-based video coding scheme (OBVC) this technique achieves efficient ...
5
Analysis of Video Quality Variation with Different Bit Rates of H 264 Compression
... a video scene will result in unstable network traffic. As for the video bit stream generated by a video signal compressed through the ...source rate consists of two modes: VBR (Variable ...
9
Efficient bit rate control method for distributed video coding system
... wireless low-power video surveillance systems, visual sensor networks and mobile systems with ultra light encoders ...hIgh compression Syndrome based Multimedia coding (PRISM) has been proposed ...
12
Very Low Bit Rate Video Coding by Combining H 264/AVC Standard and 2 D Discrete Wavelet Transform
... video sequence. After applying a two dimensional Haar wavelet transform on it, Figure 5(b) is obtained. Finally, Figure 5(c) indicates the corresponding LL, LH, HL, and HH bands according to Figure 5(b). ...
9
Enhanced Adaptive Approach of Video Coding at Very Low Bit Rate Using MSPIHT Algorithm
... embedded compression engine is designed hardwired that mainly targets in reducing the full high-defi- nition (HD) video transmission ...to very small prediction residuals; it acquires an overhead for ...
9
A Review on Video Enhancement For Very Low Light Environment
... the video taken for investigation it must be clear for viable ...containing video is not clear and questions are not distinguished appropriately then the fundamental thought of video upgrade comes ...
5
Efficient Implementation of 2D DWT for Video Compression Using Bit Parallel Architecture
... Video coding is an important process in many multimedia applications. In addition to spatial redundancy, temporal redundancy plays a vital role in the transmission of video frames. Motion estimation is a ...
10
Speech Coding Methods, Standards, and Applications. Jerry D. Gibson
... There are many speech coding standards mentioned in this paper, and different standards bodies set the standards for different networks and applications. The Telecommunications Standardization Sector of the International ...
42
Low Bit Error Rate Based Communication by IEEE 802 15 4
... data rate for the DS system is 1Mbps encoded with differential binary phase shift keying ...2Mbps rate is provided using differential quadrature phase shift keying (DQPSK) at the same chip rate of 11 ...
5
STEGNOGRAPHIC PROPERTIES BASED DATA HIDDEN IN MEDIA ELEMENTS USING CRYPTOGRAPHY
... 695 | P a g e To hide the data successfully, three parameters of the echo are varied: amplitude, decay rate, and offset (delay time) from the original signal. All three parameters are set below the human hearing ...
12
International Journal of Computer Science and Mobile Computing
... A one dimensional discrete wavelet transform is a repeated filter bank algorithm [10]. The input is convolved with a high pass filter and a low pass filter. The result of the latter convolution is a smoothed ...
9
Adaptive Long-Term Coding of LSF Parameters Trajectories for Large-Delay/Very- to Ultra-Low Bit-Rate Speech Coding
... as low as 300 − 500 bits/s varies a ...of very- to-ultra low bit rate LSF quantization may largely depend on the signal itself ...
13
A survey of statistical source models for variable bit-rate compressed video
... compressed video is a traffic source which can have high peak-to-mean ratios and significantly high ...output bit-rate of the encoder. This is referred to as Constant bit-rate (CBR) ...
48
Encryption and Compression of Audio Video Data Using Enhanced AES and J Bit Algorithm
... and video and in any other form. However it yields a low throughput resulting in slowness and increasing energy dispensation of server or an ...a compression algorithm in lossless category which ...
7