Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"JPEG2000"”.
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JPEG2000-based scalable interactive video (JSIV)
… better interactivity and we coin the term JPEG2000-Based Scalable Interactive Video (JSIV) for it. JSIV relies on three main concepts: storing the video sequence as independent JPEG2000 frames to provide for quality and spatial resolution scalability, as well as temporal and spatial …
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Multiframe Super Resolution with JPEG2000 Compressed Images
… Joint Photographic Experts Group 2000 (JPEG2000) image compression and multiframe Super Resolution (SR) image processing techniques have evolved separately. In this research, we propose and compare novel processing architectures for applying multiframe SR with JPEG2000 compression. We …
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A digital signature and watermarking based authentication system for JPEG2000 images
… system was introduced, which is able to protect JPEG2000 images in different flavors, including fragile authentication and semi-fragile authentication. The fragile authentication is to protect the image at code-stream level, and the semi-fragile is to protect the image at the content level. The …
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A hybrid system for video compression based on H.264 and JPEG2000
… compression system is created that combines the JPEG2000 and H.264 standards. JPEG2000 is used to encode the I-frames, while H.264 is used to encode the P-frames. The goal of this thesis is to evaluate the performance of this hybrid system. The system is evaluated using a set of eight test video …
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Fast Split Arithmetic Encoder Architectures and Perceptual Coding Methods for Enhanced JPEG2000 Performance
JPEG2000 is a wavelet transform based image compression and coding standard. It provides superior rate-distortion performance when compared to the previous JPEG standard. In addition JPEG2000 provides four dimensions of scalability-distortion, resolution, spatial, and color. These superior features …
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Wavelet-based Image Compression Using Human Visual System Models
… the international image compression standard---JPEG2000. In terms of subjective quality, our scheme is superior to JPEG2000 for all images; it also outperforms JPEG2000 by 1 to 3 dB in PSNR.
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Hyperspectral image compression using implicit neural representations
… against sixteen other schemes ((1) JPEG, (2) JPEG2000, (3) PCA-DCT, (4) PCA-JPEG2000, (5) MPEG, (6) X264, (7) X265, (8) PCA-X264, (9) PCA-X265, (10) FPCA-JPEG2000, (11) 3D-DCT, (12) 3D-DWT-SVR, (13) WSRC, (14) HEVC, (15) RPM, and (16) 3D-SPECK.) for hyperspectral image compression, and …
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Novel methods of image compression for 3D reconstruction
… and among the most popular are JPEG and JPEG2000. The thesis addresses different types of discrete transformations (DWT, DCT and DST) thatcombined in particular ways followed by Matrix Minimization algorithm,which is achieved high compression ratio by converting groups of data into a …
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Complex-valued SAR image compression : an approach for amplitude, phase, and gradient recovery
… compression methods, such as JPEG and JPEG2000, although widely used, often fail to preserve SAR image quality due to their susceptibility to compression artifacts. The continuous capture of high-resolution raw SAR images over extended periods on drones and Unmanned Aerial Vehicles …
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Digital Watermarking Based Image and Video Quality Evaluation
… wPSNR, JND, SSIM and VIF under JPEG compression, JPEG2000 compression, Gaussian low-pass filtering, Gaussian noise distortion, H.264 compression and packet loss related distortion.
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Advanced Statistical Learning Methods in Image Processing
… compression approaches including JPEG, JPEG2000, BPG, MPEG-4, HEVC and a neural network-based method for all of different image/video types and often on nearly all of the individual images. Second, in the image reconstruction problem, we establish posterior concentration rates for …
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Image Compression Using Balanced Multiwavelets
… recent image compression standards such as JPEG2000 use the wavelet transform. It is well known that orthogonality and symmetry are desirable transform properties in image compression applications. It is also known that the scalar wavelet transform does not possess both properties …
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Optimal, Multiplierless Implementations of the Discrete Wavelet Transform for Image Compression Applications
… of the discrete wavelet transform (DWT) for the JPEG2000 image compression standard has sparked interest in the design of fast, efficient hardware implementations of the perfect reconstruction filter bank used for computing the DWT. The accuracy and efficiency with which the filter coefficients …
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New contributions on image fusion and compression based on space-frecuency representations = Nuevas contribuciones en fusión y compresión de imágenes basadas en representaciones espacio-frecuenciales
… by compression standards such as JPEG and JPEG2000. Multiresolution decompositions have proven their superiority against other traditional image fusion techniques. Nevertheless it does not exist any evident hegemony, often due to the lack of a reference image. In this thesis, several types …
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Real-time Realistic Rendering And High Dynamic Range Image Display And Compression
… domain, and finally applies the wavelet based JPEG2000 encoder for entropy compression and bit stream truncation to meet the desired bit rate requirement. We believe that these and similar such contributions will make a wide application of high dynamic range images possible. The contributions …