handbook of image and video processing by alan c bovik pdf
MULTIMEDIA IMAGE and VIDEO PROCESSING
Ngày tải lên :
08/05/2014, 16:13
... tools into the scope of a video standard, and hence bridges computer graphics and image
processing.
©2001 CRC Press LLC
by a collaborative phase. During the competitive phase, a call for proposals ... vectors (commonly
available in compressed video bitstreams) form a useful descriptor for motion characteristics
of a video clip. MPEG-7 also uses the concept of description scheme (DS), which ... Guan
Sun-Yuan Kung
Jan Larsen
©2001 CRC Press LLC
MULTIMEDIA
IMAGE
and VIDEO
PROCESSING
© 2001 by CRC Press LLC
The computation burden can be reduced by using fixed point instead of floating point op-
erations...
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kehtarmavaz, gamadia - real - time image and video processing - from research to reality
Ngày tải lên :
05/06/2014, 11:40
... processing of image data in digital form by a
digital computer, occurred in 1957 with the first picture scanner attached to the National Bureau
of Standards Electronic Automatic Computer (SEAC), ... Signal Processing Sense 8
1.4.4 Misinterpretation of Concept of Real-time 8
1.4.5 Challenges in Real-time Image/ Video Processing 9
1.5 Historical Perspective 9
1.5.1 History of Image/ Video Processing ... video
object segmentation using MPEG-encoded video sequences. The use of these features
allowed the construction of a feature vector that succinctly captured the frequency-
temporal characteristics of...
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jayanta mukhopadhyay - image and video processing in the compressed domain
Ngày tải lên :
05/06/2014, 12:04
... : Basic steps in processing with compressed images.
with the DCT c oefficients of the image and produce the DCT coefficients
of the processed images. In this case, though there are overheads of entropy
decoding ... of
the block. The rest of the coefficients for all other frequency components are
known as AC coefficients. Usually, DC coefficients of neighboring blocks are
highly correlated. That is why these coefficients ... 42
xi
© 2011 by Taylor and Francis Group, LLC
Image and Video Compression: An Overview 7
Input
Compressed
Image
Decompression
Processing
in Spatial
Domain
Compression
Output
Compressed
Image
Figure...
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Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2010, Article ID doc
Ngày tải lên :
21/06/2014, 06:20
... object-based detection is already chal-
lenging on its own, especially with respect to correct and
consistent object detection and its correct detection behavior
when scene and light changes occur. ... camera, which includes
lens control, exposure control of the sensor, and gain
control of the image processing chain. We will apply the
concept of a recursive control proposed in previous section,
intended ... intelligent processing in the camera can consider
only important scene parts, based on statistical measures
of “contrast” and “focus”, face and skin-tones, object-based
detection and tracking, and so...
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Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2010, Article ID potx
Ngày tải lên :
21/06/2014, 06:20
... M.Arnold,A.Ghosh,G.Lacey,S.Patchett,andH.Mulcahy,
“Indistinct frame detection in colonoscopy videos,” in Pro-
ceedings of the 13th International Machine Vision and Image
Processing Conference (IMVIP ’09), ... detection of lesions [42]. Consequently, removal
of these artefacts is of high importance both from the clinical
and the technical perspect ives.
4 EURASIP Journal on Image and Video Processing
(a) ... the
appendix, (b) Colonoscopic image with specularity and colour channel misalignment due to sequential RGB endoscopic system, (c)
Colonoscopic image showing a colonic polyp.
Figure 2: Example...
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Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2011, Article ID docx
Ngày tải lên :
21/06/2014, 06:20
... rejection ratio (1–0.65
η
),
that is specialized in rejecting context-speci c clutter and
distractors. The threshold η canbechosenaccordingtothe
classification complexity of the visual context and ... Gunes, and M. Piccardi, “Head detection
for video surveillance based on categorical hair and skin
colour models,” in Proceedings of the 16th IEEE International
Conference on Image Processing (ICIP ... Proceedings of the IEEE Computer
Society Conference on Computer Vision and Pattern Recognition
(CVPR’99), vol. 2, pp. 160–166, June 1999.
[36] R. Cucchiara, C. Grana, M. Piccardi, and A. Prati, “Detecting
moving...
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Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2011, Article ID potx
Ngày tải lên :
21/06/2014, 06:20
... number of examined faces. PR is the
ratio of the number of correctly classifying a face image as
a face image and nonface image as nonface image to the
total number of images evaluated. TP indicates ... under occlusion by integrating face
and person detectors,” in Proceedings of the 3rd International
Conference on Advances in Biometrics (ICB ’09), vol. 5558 of
Lecture Notes in Computer Science, ... 100
Number of features
CoLBP c
= 1
CoLBP c
= 2
CoLBP c
= 3
CoLBP c
= 4
CoLBP Features performance
Figure 8: Training error for different number of co-occurred
features.
The feature extraction of the CoLBP...
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Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2011, Article ID pot
Ngày tải lên :
21/06/2014, 06:20
... McCahill and C. Norris, Urbaneye: CCTV in London,
Centre for Criminology and Criminal Justice, University of
Hull, UK, 2002.
[2] G.Francisco,S.Roberts,K.Hanna,andJ.Heubusch,“Critical
infrastructure ... still images and video
sequences. It can be further classified into t hree categories:
still image to still image matching, video sequence to video
sequence matching, and still image to video ... index of the n
c
samples of image
set c; theaffine hull that represents the images set is modelled
as
H
c
=
x = μ
c
+ U
c
v
c
,
μ
c
=
1
n
c
n
c
k=1
x
ck
,
(8)
where U
c
is the set of eigenvectors...
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báo cáo hóa học:" Editorial Image and Video Processing for Cultural Heritage Vincent Charvillat,1 Anna Tonazzini (EURASIP Member),2 Luc Van Gool,3, 4 and Nikos Nikolaidis (EURASIP Member)5 1 IRIT," potx
Ngày tải lên :
21/06/2014, 18:20
... document repository can be
enriched w ith new content descriptors by its curators, and
generic users can access and browse the document center,
searching the structured information in the descriptors ... light a brickwork
room for food maintenance, a furnace, and the basement
of a wing of the castle, exactly in correspondence with the
anomaly sources detected by the geoelectric inspection.
The ... topics, such as high-
resolution 2D and 3D digital capture and rendering of
artworks, digital restoration, enhancement, recognition, and
classification of features, structures and content in cultural
heritage...
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Báo cáo hóa học: " Review Article Overview on Selective Encryption of Image and Video: Challenges and Perspectives doc
Ngày tải lên :
22/06/2014, 00:20
... number of CCPs
encrypted.
(c) Cryptographic security: iterative encryption of CCPs
may give a hint for side channel attacks (e.g., timing
attack).
(d) Encryption ratio: depends on the number of CCPs
encrypted.
(e) ... is
achieved. Indeed, most of the image energy is
concentrated in DC coefficients, thus, encrypting
them affects considerably the image content.
(c) Cryptographic security: vulnerable to chosen and
known ... “Performance study of a selec-
tive encryption scheme for the security of networked, real-
time video, ” in Proceedings of the 4th International Conference
on Computer Communications and Networks (ICCCN...
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