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检索条件"主题词=transform coding"
10293 条 记 录,以下是4631-4640 订阅
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Semi-Fragile Watermarking Based Image Authentication with Recovery Capability
Semi-Fragile Watermarking Based Image Authentication with Re...
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International Conference on Information Engineering and Computer Science (ICIECS)
作者: Clara Cruz Jose Antonio Mendoza Mariko Nakano Miyatake Hector Perez Meana Brian Kurkoski Research and Postgraduate Section National Polytechnic Institute ESIME Culhuacan Mexicali Mexico University of Electro-Communications Chofu Tokyo Japan
In this paper, a block wise image authentication scheme using a semi-fragile watermark is proposed. The proposed scheme determines integrity of the image, detecting regions suffered some content modifications and alte... 详细信息
来源: 评论
Fast partial distortion elimination based on a maximum error constraint for motion estimation
Fast partial distortion elimination based on a maximum error...
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IEEE International Conference on Image Processing
作者: Sangkeun Lee Jae-Young Lee Jin-Hee Lee Joon-Ki Paik Jong-Soo Choi Chung-Ang University Seoul South Korea
This paper introduces a new fast motion estimation based on a maximum matching error constraint that can eliminate an impossible candidate block much earlier than a conventional partial distortion elimination (PDE) sc... 详细信息
来源: 评论
Fast multiplierless recursive transforms using Ramanujan numbers
Fast multiplierless recursive transforms using Ramanujan num...
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International Multimedia, Signal Processing and Communication Technologies, IMPACT
作者: K.S. Geetha V.K. Ananthashayana Dept of E&CE R.V.College of Engineering Bangalore India Prof & Head MSRIT Bangalore India
A special class of multiplierless transforms for computing discrete cosine transform (DCT) is introduced. This algorithm is completely multiplierless to compute an N-point DCT using Ramanujan Number of order -1 and or... 详细信息
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Parallelizing Motion JPEG 2000 with CUDA
Parallelizing Motion JPEG 2000 with CUDA
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International Conference on Computer and Electrical Engineering, ICCEE
作者: Sanketh Datla Naga Sathish Gidijala Department of Electronics and Computer Engineering Indian Institute of Technology Roorkee India
Due to the rapid growth of graphics processing unit (GPU) processing capability, using GPU as a coprocessor for assisting the CPU in computing massive data has become indispensable. Nvidia's CUDA general-purpose g... 详细信息
来源: 评论
Progressive compression of digital elevation data using meshes
Progressive compression of digital elevation data using mesh...
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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)
作者: Kivanc Kose Erdal Yilmaz A. Enis Cetin Bilkent University Middle East Technical University
In this paper a new Digital Elevation Map (DEM) image compression algorithm is proposed. DEM image can be threated as a grayscale image, whose pixel values are the elevation values of the map points. The grayscale DEM... 详细信息
来源: 评论
Watermarking of colour images in the DCT domain using Y channel
Watermarking of colour images in the DCT domain using Y chan...
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ACS/IEEE International Conference on Computer Systems and Applications
作者: A. Al-Gindy H. Al-Ahmad R. Qahwaji A. Tawfik Faculty of Engineering Ajman University of Science and Technology UAE Department of Electronic Engineering Khalifa University of Science 슠Technology and Research슠 UAE School of Informatics University of Bradford UK
In this paper an image authentication technique that embeds a binary watermark into a host color image is proposed. In this scheme the colour image is first transformed from the RGB to the YCbCr color space. The water... 详细信息
来源: 评论
Hardware Design of Video Compression System in the UAV Based on the ARM Technology
Hardware Design of Video Compression System in the UAV Based...
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IEEE International Symposium on Computer Network and Multimedia Technology, CNMT
作者: Jian Wang Yinghui Song Institute 365 School of Electronics and Information Northwestern Polytechnical University Xi'an China Northwestern Polytechnical University Xi'an China
The video compression system is a key component of video data transfer system in the unmanned aerial vehicles (UAV). To satisfy the requirement of the wireless video transfer this paper puts forward a cost effective, ... 详细信息
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Dynamic and application-driven I-cache partitioning for low-power embedded multitasking
Dynamic and application-driven I-cache partitioning for low-...
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Symposium on Application Specific Processors, SASP
作者: Mathew Paul Peter Petrov ECE Department University of Maryland College Park USA
The abundance of wireless connectivity and the increased workload complexity have further underlined the importance of energy efficiency for modern embedded applications. The cache memory is a major contributor to the... 详细信息
来源: 评论
An image watermarking scheme using new wavelet filter banks
An image watermarking scheme using new wavelet filter banks
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IEEE International Workshop on Anti-counterfeiting, Security, Identification, ASID
作者: Liang Du Jianjun Zhang Xinge You Department of Electronics and Information Engineering Huazhong University of Science and Technology Wuhan China Engineering Research Center National Anti-counterfeit Wuhan China
The rapid growth of digital multimedia and Internet technologies have brought big challenge to copyright protection. Billions of dollars are lost every year because of illegal use of digital products. Digital watermar... 详细信息
来源: 评论
Novel Low Power, High Speed Hardware Implementation of 1D DCT/IDCT Using Xilinx FPGA
Novel Low Power, High Speed Hardware Implementation of 1D DC...
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International Conference on Computer Technology and Development (ICCTD)
作者: Rajesh Kannan Megalingam V. Vineeth Sarma B. Venkat Krishnan M. Mithun Rahul Srikumar Department of Electronics and Communication Amrita School of Engineering Kollam Kerala India Amrita Vishwa Vidyapeetham Coimbatore Tamil Nadu IN
DCT/IDCT finds potent application in the field of image and signal processing. In this paper, we concentrate on a novel five stage pipelined implementation, which consumes less power. The design uses Verilog HDL and i... 详细信息
来源: 评论