Dr. John G. Apostolopoulos Profile

Dr. John G. Apostolopoulos

at HP Inc

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 16 September 2005 Paper

Study and validation of tools interoperability in the JPSEC framework

V. Conan, Y. Sadourny, K. Jean-Marie, C. Chan, S. Wee, J. Apostolopoulos

Proceedings Volume 5909, 59090H (2005) https://doi.org/10.1117/12.623822

KEYWORDS: Data processing, Image processing, Image encryption, Computer security, Standards development, Image compression, Image resolution, Image segmentation, Manufacturing, Computer programming

Read Abstract +

Proceedings Article | 16 September 2005 Paper

Supporting secure transcoding in JPSEC

John Apostolopoulos, Susie Wee

Proceedings Volume 5909, 59090J (2005) https://doi.org/10.1117/12.623825

KEYWORDS: Computer security, Distortion, Image encryption, Network security, Image resolution, Video, Information security, Image compression, Standards development, Image processing

Read Abstract +

Proceedings Article | 2 November 2004 Paper

JPSEC for secure imaging in JPEG 2000

Frederic Dufaux, Susie Wee, John Apostolopoulos, Touradj Ebrahimi

Proceedings Volume 5558, (2004) https://doi.org/10.1117/12.564837

KEYWORDS: Computer security, Image resolution, Image segmentation, Wavelets, Image registration, Image encryption, Image processing, Image quality, Image compression, Information security

Read Abstract +

Proceedings Article | 29 December 2000 Paper

Reliable video communication over lossy packet networks using multiple state encoding and path diversity

John Apostolopoulos

Proceedings Volume 4310, (2000) https://doi.org/10.1117/12.411817

KEYWORDS: Video, Video coding, Relays, Telecommunications, Internet, Computer programming, Video compression, Receivers, Forward error correction, Error analysis

Read Abstract +

Proceedings Article | 22 November 1999 Paper

Error-resilient video compression

John Apostolopoulos

Proceedings Volume 3845, (1999) https://doi.org/10.1117/12.371202

KEYWORDS: Video, Video compression, Computer programming, Video coding, Error analysis, Image segmentation, Video processing, Internet, Motion estimation, Visualization

Read Abstract +

Proceedings Article | 21 April 1995 Paper

Coding of arbitrarily shaped regions

John Apostolopoulos, Jae Lim

Proceedings Volume 2501, (1995) https://doi.org/10.1117/12.206718

KEYWORDS: Distortion, Computer programming, Algorithm development, Wavelets, Video compression, Video, Signal to noise ratio, Image segmentation, Image compression, Video coding

Read Abstract +

Proceedings Article | 1 June 1991 Paper

Optical link demonstration with a lightweight transceiver breadboard

Hamid Hemmati, James Lesh, John Apostolopoulos, Hector Del Castillo, A. Martinez

Proceedings Volume 1417, (1991) https://doi.org/10.1117/12.43777

KEYWORDS: Mirrors, Semiconductor lasers, Signal detection, Sensors, Laser applications, Free space optical communications, Free space optics, Transceivers, Electronics, Transmitters

Read Abstract +