rate distortion techniques in image and video coding

... corresponding known values In their work entitled “Color image coding by colorization approach,” T Horiuchi and S Tominaga propose a new color image coding scheme called “colorization image coding. ” ... as chrominance information The luminance image is coded using a lossy coding technique, while the chrominance information is stored as color seeds Decoding is performed by simply colorizing the ... “Demosaicking based on optimization and projection in different frequency bands,” O Omer and T Tanaka introduce an iterative demosaicking algorithm capable of reconstructing a full-color image using single-color...

Ngày tải lên: 22/06/2014, 00:20

... recent trends in multidimensional image processing, ranging from image acquisition to image and video coding, to color image processing and analysis, and to color image encryption In 2007, a special ... MPEG4, and H.264/AVC, and deployed in multimedia applications such as video conferencing, storage video, video- on-demand, digital television broadcasting, and Internet video streaming [110] In most ... competitive coding gains at a fraction of the coding/ decoding time required by existing solution such as JPEG In [115], the authors proposed a color image coding strategy which combines localized...

Ngày tải lên: 22/06/2014, 00:20

Ngày tải lên: 05/06/2014, 11:59

... restoration, image and video resizing, transcoding, etc In addition, different other applications in the compressed domain such as video and image editing, digital watermarking and steganography, image and ... of interest and deals with the fundamentals and properties of various image transforms used in image and video compression Subsequently, their application in designing image and video processing ... 6.2 6.3 Image halving using linear distributive and unitary properties of DCT: (a) original image, (b) bilinear decimation in spatial domain, and (c) downsampled image in the transform domain (58.24...

Ngày tải lên: 05/06/2014, 12:04

... applications and new technologies in different fields, such as biology, medicine, engineering, and entertainment The images and videos are compressed, transmitted, captured, and stored in various ... types and amounts of impaired artifacts While in bio-medical applications, speckle noise and coding artifacts are most common, in the entertainment and engineering applications, the digital coding ... subjective image quality assessment • Image/ video enhancement and analysis for 3D visualization • Image and video enhancement and analysis for artifact reduction • Image and video analysis for emerging...

Ngày tải lên: 21/06/2014, 17:20

... applications and new technologies in different fields, such as biology, medicine, engineering, and entertainment The images and videos are compressed, transmitted, captured, and stored in various ... types and amounts of impaired artifacts While in bio-medical applications, speckle noise and coding artifacts are most common, in the entertainment and engineering applications, the digital coding ... subjective image quality assessment • Image/ video enhancement and analysis for 3D visualization • Image and video enhancement and analysis for artifact reduction • Image and video analysis for emerging...

Ngày tải lên: 21/06/2014, 19:20

... the article and discusses future work RELATED WORK IN SCALABLE CODING AND ADAPTIVE IMAGE AND VIDEO TELEMEDICINE SYSTEMS Scalable image and video coding has attracted recently the interest of ... in C++, whereas the encoding part has been developed in Java enabling its usage in both standalone and Web applications (Java applets) H.264 SCALABLE VIDEO CODING In contrast to older video coding ... Communications and Networking (a) (b) (c) (d) (e) (f) Figure 5: Image samples compressed at different scaling factors and region of interest (ROI) coding (a) Skin lesion image, (b) MRI image, and (c)...

Ngày tải lên: 22/06/2014, 19:20

... multimedia processing; (2) methodologies, techniques, and applications: image and video coding, image and video storage and retrieval, digital video transmission, video conferencing, watermarking, distance ... Simulation and Discussion 16.5 Multipoint Video Bridging 16.5.1 Introduction 16.5.2 Video Characteristics in Multipoint Video Conferencing 16.5.3 Results of Using the Coded Domain and Transcoding Approaches ... education, video on demand, and telemedicine The book begins with the existing standards for multimedia, discussing their impacts to multimedia image and video processing, and pointing out possible...

Ngày tải lên: 23/10/2013, 16:15

... boundary, warping begins with this endpoint using point clipping Once a point within the boundary is warped, clipping is turned off, because the remaining points on the line are within the sprite ... standards, including H.263, H.26L, MPEG-4, MPEG-7, and H.323 Reviewing the development of video coding, as shown in Figure 1.11, we can see that the progress of video coding and multimedia standards ... various network infrastructures, different standards are needed Each system standard contains specifications about video coding, audio coding, control and signaling, and multiplexing For multimedia...

Ngày tải lên: 27/10/2013, 23:15

... coverage of video filtering methods can be found in the book Digital Video Processing by Tekalp [8] This chapter summarizes key results in digital image and video restoration 53.2 Modeling Every image ... reduces ringing artifacts that are due to using erroneous PSF estimates 53.4.4 Adaptive Restoration for Ringing Reduction Linear space-invariant (LSI) restoration methods introduce disturbing ringing ... for single-band imagery may no longer be so when applied to individual spectral bands For example, restoration of the red, green, and blue bands of a color image independently usually results in...

Ngày tải lên: 27/01/2014, 03:20

... Waveletdomain coding Moving frame coding A taxonomy of image and video compression methods www.it-ebooks.info Key frame coding P1: OTA/XYZ P2: ABC c01 JWBS049-Thyagarajan 18 September 22, 2010 16:13 Printer ... have introduced terminologies of lossy and lossless methods of compressing still images and video The existing lossy compression schemes are DPCM, transform coding, and wavelet-based coding Although ... lowpass filter interpolates to obtain the original image Thus, the continuous image is recovered from the sampled image exactly by linear filtering when the sampling is ideal and the sampling rates satisfy...

Ngày tải lên: 24/03/2014, 01:21

... VI1 Image and Video Acquisition 7.1 Image Scanning Sampling and Interpolation Jan P Allebach 7.2 Video Sampling and Interpolation Eric Dubois 629 645 SECTION VIII Image and Video ... SECTION IX Image and Video Storage Retrieval and Communication 9.1 9.2 9.3 9.4 Image and Video Indexing and Retrieval Michael A Smith and Tsuhan Chen A Unified Framework for Video Browsing and ... processed, and displayed in a digital visual format is increasing rapidly, and thus the design of engineering methods for efficientlytransmitting, maintaining, and even improving the visual integrity...

Ngày tải lên: 18/04/2014, 10:59

... multimedia processing; (2) methodologies, techniques, and applications: image and video coding, image and video storage and retrieval, digital video transmission, video conferencing, watermarking, distance ... Simulation and Discussion 16.5 Multipoint Video Bridging 16.5.1 Introduction 16.5.2 Video Characteristics in Multipoint Video Conferencing 16.5.3 Results of Using the Coded Domain and Transcoding Approaches ... education, video on demand, and telemedicine The book begins with the existing standards for multimedia, discussing their impacts to multimedia image and video processing, and pointing out possible...

Ngày tải lên: 08/05/2014, 16:13

... scattered in the literature of various disciplines including image processing, computer engineering, and software engineering, and thus have not previously appeared in one place By bringing these strategies ... REAL-TIME IMAGE AND VIDEO PROCESSING: FROM RESEARCH TO REALITY (a) (b) Input image Output image Input image Output image (c) Input image Output image FIGURE 1.2: Parallelism in low-level (a) point, ... PARALLELISM IN IMAGE/ VIDEO PROCESSING OPERATIONS Real-time image and video processing systems involve processing vast amounts of image data in a timely manner for the purpose of extracting useful information,...

Ngày tải lên: 05/06/2014, 11:40

... H Freeman and Co., 1982 [3] K Rao and J Hwang, Techniques and Standards for Image, Video and Audio Coding, Prentice-Hall, 1996 [4] S LoPresto, K Ramchandran, and M Orchard, Image Coding Based ... of Interest Compression in Subband Coding ) by Pankaj Topiwala develops a simple second-generation coding approach in which regions of interest within images are exploited to achieve image coding ... transform complexity 1 Introduction 4.4 11 Part IV: Video Coding Part IV examines wavelet and pyramidal coding techniques for video data Chapter 19 (“Review of Video Coding Standards”) by Pankaj...

Ngày tải lên: 05/06/2014, 11:52

... of this interdisciplinary field Topics covered by the series fall in the following four main categories: • • • • Imaging Systems and Image Processing Computer Vision and Image Understanding Visualization ... machines, we can begin to ask new questions about art, computing, and their interaction With advances in Vision, Machine Learning, and Human Factors merging into this maturing sub-discipline ... stylization The increasing complexity and diversity in style demanded by techniques demands a correspondingly greater degree of sophistication in the parsing and extraction of information from...

Ngày tải lên: 05/06/2014, 11:53

... Gboost tETmax Gain control region tIT = Gmin tETnominal tET = T Gmax > Gmin tETnominal < T Gain G G ≈ Gmin∗ Gmin Lens opening Increasing luminance input Y −→ Luminance input Y Figure 6: Video- level ... Input intensity (b) Figure 12: Merging long- and short-exposure images into one image: (a) mixing and (b) hard switching image, to retain the luminance relation As a result, after combining these ... shortexposed image four times more gain than the long-exposed EURASIP Journal on Image and Video Processing Long Short Mixing gain Mixing gain 20 IT1 IT2 Imax Input intensity (a) Long Short IT Imax Input...

Ngày tải lên: 21/06/2014, 06:20

... proposed inpainting approach was demonstrated on a set of images and compared to the inpainting method proposed in [26] When using inpainting in practice, it is important to keep the users informed ... respectively Inpainting of Specular Highlights Image inpainting is the process of restoring missing data in still images and usually refers to interpolation of the missing pixels using information of ... Han and M Kamber, Data Mining: concepts and Techniques, Morgan Kaufmann, San Francisco, Calif, USA, 2006 [40] T K Shih and R C Chang, “Digital inpainting—survey and multilayer image inpainting...

Ngày tải lên: 21/06/2014, 06:20

... using linear or bicubic blending and outliers filling Indeed, given an image and its polar transformation with respect to the image center, any slice of annulus on the original image (centered in ... detection, and recognition trained on generic or poor training data [18, 19] Regarding this EURASIP Journal on Image and Video Processing latter context exploitation, many of the works propose an “online ... training datasets The context models learned during Step (A) are stored and then used during the Step (B), where video data coming from the same domain is processed using both general-purpose and...

Ngày tải lên: 21/06/2014, 06:20