Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Melih Pazarci"'
Autor:
Ege Niyazi Gural, Melih Pazarci
Publikováno v:
Medicine Science, Vol 7, Iss 2, Pp 295-8 (2018)
In forensic audio examination, standard listening and visual sound spectrogram analysis methods often lead to incorrect conclusions due to the losses in data when the tape is copied. Furthermore, conducting the standard examinations on audio files wh
Externí odkaz:
https://doaj.org/article/7b849b6f2f9f4ba59e9e9249f0d4d7a1
Autor:
Vadi Dipcin, Melih Pazarci
Publikováno v:
SMPTE Motion Imaging Journal. 112:274-286
A new video scrambling technique provides controlled picture degradation. The scrambling is performed prior to MPEG encoding, with only a minimal increase in the MPEG transport stream bit rate. The technique uses point operations on blocks of pixels.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2fae671108343c57595229943b0a047
https://doi.org/10.5594/j17750
https://doi.org/10.5594/j17750
Autor:
Melih Pazarci, Vadi Dipcin
Publikováno v:
IEEE Transactions on Consumer Electronics. 48:345-355
The paper proposes a video scrambling technique that allows an unauthorized user to have an arbitrarily degraded view of a program, yet it is totally transparent to MPEG-2 encoding. Video components are block-coded using a mix of linear transformatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c692dc4d2cd6c9b4f881fe23f7fc48ea
https://doi.org/10.1109/tce.2002.1010141
https://doi.org/10.1109/tce.2002.1010141
Autor:
Melih Pazarci
Publikováno v:
SMPTE Journal. 99:442-447
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c49d2ba9a97e38642245027726fcccbd
https://doi.org/10.5594/j03854
https://doi.org/10.5594/j03854
Autor:
Melih Pazarci, Serkan Emek
Publikováno v:
Multimedia Content Representation, Classification and Security ISBN: 9783540393924
MRCS
MRCS
We compare our earlier additive and image dependent watermarking schemes for digital images and videos. Both schemes employ DWT followed by DCT. Pseudo-random watermark values are added to mid-frequency DWT-DCT coefficients in the additive scheme. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b28a04d8255c2ec716603365ec53d2db
https://doi.org/10.1007/11848035_15
https://doi.org/10.1007/11848035_15
Publikováno v:
Proceedings of the IEEE 12th Signal Processing and Communications Applications Conference, 2004..
Many watermark algorithms exist for the the frequency domain using the DCT or the DWT. In this paper, we propose a new watermark algorithm using the DWT for harmony with the human visual system, and the DCT for robustness against signal processing at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5647102a1a17bb1ec48890a415b4faf
https://doi.org/10.1109/siu.2004.1338250
https://doi.org/10.1109/siu.2004.1338250
Autor:
Melih Pazarci, Vadi Dipcin
Publikováno v:
ISCC
A technique for embedding data in scrambled MPEG video is described. The embedding technique is applied to the video sequence jointly with the video scrambling algorithm. The scrambling operation together with the data embedding process are performed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6fe45ca1f40f722a2206d7c82174df9
https://doi.org/10.1109/iscc.2003.1214167
https://doi.org/10.1109/iscc.2003.1214167
Autor:
Melih Pazarci, J.L. LoCicero
Publikováno v:
IEEE International Conference on Communications, Including Supercomm Technical Sessions.
A fully NTSC-compatible, two-channel, wide aspect-ratio HDTV (high-definition television) system with equal vertical and horizontal resolutions is described. The wideband, Y, I and Q components are spectrally split into low-frequency and high-frequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::887fc3860e118d0e558448d2db0c2ade
https://doi.org/10.1109/icc.1990.117200
https://doi.org/10.1109/icc.1990.117200
Autor:
Melih Pazarci
Publikováno v:
IEEE Transactions on Consumer Electronics. 35:184-194
An adaptive recursive ghost processor subsystem, a smart system that minimizes TV ghosts and transmission distortions without producing new picture artifacts, is described. The ghost canceller structure and the processing algorithm are very efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::923b2fb656cfd72bd2f59445ea961ef1
https://doi.org/10.1109/30.44271
https://doi.org/10.1109/30.44271
Publikováno v:
IEEE Transactions on Communications. 34:946-952
One of the important characteristics of a high-definition television (HDTV) image is a wide aspect ratio. In some HDTV systems the image is segmented and different formats are used to transmit portions of the image. We address the problem of image re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a13871660edcd3c4d67b9d393e5e417
https://doi.org/10.1109/tcom.1986.1096650
https://doi.org/10.1109/tcom.1986.1096650