搜索结果: 1-15 共查到“信息处理技术 Rate”相关记录29条 . 查询时间(0.093 秒)
Optical Flow estimation using high frame rate sequences
Optical Flow estimation high frame rate sequences
2015/8/17
Gradient-based optical flow estimation methods such as Lucas Kanade method work well for scenes with small dlsplacements but fail when objects move with large displacements. Hierarchical matching-base...
Characterization of CMOS Image Sensors with Nyquist Rate Pixel Level ADC
ixel level ADC dark current fixed pattern noise read noise QE
2015/8/17
Techniques for characterizing CCD imagers have been developed over many years. These techniques have been recently modified and extended to CMOS PPS and APS imagers. With the scaling of CMOS technolog...
A Nyquist Rate Pixel Level ADC for CMOS Image Sensors
Nyquist Rate Pixel Level ADC CMOS Image Sensors
2015/8/17
A Nyquist rate Multi-Channel Bit Serial (MCBS) ADC using successive comparisons is presented. The ADC is suited to pixel level implementation in a CMOS image sensor. It comprises a 1-bit comparator/la...
Novel Statistical Modeling, Analysis and Implementation of Rate-Distortion Estimation for H.264/AVC Coders
Novel Statistical Modeling Analysis Rate-Distortion Estimation
2010/12/20
Novel Statistical Modeling, Analysis and Implementation of Rate-Distortion Estimation for H.264/AVC Coders.
Rate-distortion Optimized Transform for Intra-frame Coding
Rate-distortion Optimized Transform Intra-frame Coding
2010/12/21
In this paper, a novel algorithm is proposed for intra-frame coding, named as rate-distortion optimized transform (RDOT). Unlike existing intra-frame coding schemes where the transform matrices are ei...
Low Bit-rate Image Coding via Interpolation Oriented Adaptive Down-sampling
Low Bit-rate Image Coding Interpolation Oriented Adaptive Down-sampling
2010/12/21
An interpolation oriented adaptive down-sampling algorithm is proposed for low bit-rate image coding in this paper.Given an image, the proposed algorithm is able to obtain a low resolution image, from...
A Motion Aligned Auto-regressive Model for Frame Rate up Conversion
Motion Aligned Auto-regressive Model Frame Rate up Conversion
2010/12/21
In this paper, a motion-aligned auto-regressive (MAAR) model is proposed for frame rate up conversion, where each pixel is interpolated as the average of the results generated
by one forward MAAR (Fw...
基于chirp信号chirp-rate和中心频率参数与其分数傅里叶变换特性之间的明确关系，提出了一种采用分数傅里叶变换法解调的多进制chirp-rate键控调制方式，该方式具有恒包络，并具有优于MPSK的误码性能。进而，将多进制chirp-rate键控与MFSK联合使用，通过参数调整，能够获得误码率性能与频谱效率间的折中。
Rate Distortion Modeling of Skip Mode and Early Skip Mode Selection for H.264/MPEG-4 AVC
Rate Distortion Modeling Skip Mode Early Skip Mode
2010/12/20
This paper proposed a linear rate-distortion (RD) cost model for skip mode in H.264. The proposed RD cost model is derived theoretically based on the quantization scheme of H.264, and the simulation r...
A Novel Rate Estimation Model for Mode Decision of H.264/AVC
Rate Estimation Model Mode Decision H.264/AVC
2010/12/20
To acquire the optimal coding mode of each macroblock, the H.264/AVC encoder exhaustively calculates the ratedistortion cost for all available modes and chooses the minimum one as the best mode. There...
Rate-Distortion Optimization with Inter-iew Refreshment for Stereoscopic Video Coding over Error-Prone Networks
Rate-Distortion Optimization Inter-iew Refreshment Stereoscopic Video Coding
2010/12/20
Stereoscopic video is a practical and important manner for 3-D video applications, and robust stereoscopic video transmission over error-prone networks has posed a technical challenge for stereoscopic...
A ROI Quality Adjustable Rate Control Scheme for Low Bitrate Video Coding
ROI Quality Adjustable Rate Control Scheme Bitrate Video Coding
2010/12/20
This paper proposed a novel Region of Interest (ROI) based rate control algorithm for video communication systems, in which the subjective quality of ROI can be adjusted
according to users’ requireme...
Wyner–Ziv Switching Scheme for Multiple Bit-Rate Video Streaming
Wyner–Ziv Switching Scheme Multiple Bit-Rate Video Streaming
2010/12/17
This paper proposes a Wyner–Ziv (WZ) switching scheme for multiple bit-rate (MBR) video streaming over networks.Identical video content is encoded into a set of normal
streams, which are generated by...
A Spatio-temporal Auto-regressive Model for Frame Rate up Conversion
Spatio-temporal Auto-regressive Model Frame Rate up Conversion
2010/12/20
This paper proposes a spatio-temporal auto regressive (STAR) model for frame rate upconversion. In the STAR model, each pixel in the interpolated frame is approximated
as the weighted combination of ...
Fast Rate Allocation Based on Distortion Estimation Modeling in Scalable Video Coding
Fast Rate Allocation Distortion Estimation Modeling Scalable Video Coding
2010/12/20
For rate-distortion optimized rate allocation in JVT Scalable Video Coding (SVC), the distortion impact of every FGS NAL unit on the global reconstruction quality is calculated by repeatedly bitstream...