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A video authentication scheme for H.264/AVC Main profile

A video authentication scheme for H.264/AVC Main profile

A video authentication scheme for H.264/AVC Main profile. Nandakishore Ramaswamy Multimedia Processing Lab July 9 th , 2004. Agenda. Objectives Introduction Previous work Encoder/Decoder description Simulation Results Conclusion and Future work References. Objectives.

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688 views • 58 slides
Improved Shape-adaptive image compression by morphological segmentation

Improved Shape-adaptive image compression by morphological segmentation

National Taiwan University. Presenter: Tzu-Heng Henry Lee Research Advisor: Jian-Jiun Ding , Ph. D. Assistant professor Digital Image and Signal Processing Lab Graduate Institute of Communication Engineering National Taiwan University.

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510 views • 35 slides
Compression

Compression

Compression. There is need for compression: bandwidth constraints of multimedia applications exceed the capability of communication channels Ex. QCIF bit rate: 40.5 Mbps (IEEE 802.11b: 11 Mbps!!!)

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324 views • 30 slides
JPEG Still Image Data Compression Standard

JPEG Still Image Data Compression Standard

JPEG Still Image Data Compression Standard. JPEG Introduction - The background. JPEG stands for Joint Photographic Expert Group A standard image compression method is needed to enable interoperability of equipment from different manufacturer

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620 views • 25 slides
Color spaces and JPEG

Color spaces and JPEG

Color spaces and JPEG. Colors. physically, color is electro-magnetic radiation (i.e. light with various wave length, between 390nm-750nm) percieved by the human eye a color is actually made from a combination o light radiations with different wave lengths electro-magnetic radiation spectrum:.

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342 views • 24 slides
CIS679: JPEG (more)

CIS679: JPEG (more)

CIS679: JPEG (more). Review of JPEG More about JPEG Lab project. Review of JPEG. JPEG goals Picture Preparation Component, block, and pixel Picture Processing Shift Forward DCT Quantization Different coefficients are treated separately => quantization table. Differential Encoding.

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294 views • 15 slides
CIS679: JPEG (more)

CIS679: JPEG (more)

CIS679: JPEG (more). Review of JPEG More about JPEG Lab project. Review of JPEG. JPEG goals Picture Preparation Component, block, and pixel Picture Processing Shift Forward DCT Quantization Different coefficients are treated separately => quantization table. Differential Encoding.

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301 views • 15 slides

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