Wavelet transforms

This paper presents the influence of the varying axial force of cable-stayed bridge caused by moving vehicles on the detection of diameter reduction of cables using vibration signal obtained from the climbing robot. The cable model is considered as an axially loaded Euler beam. When there is no diameter reduction, the dynamic displacement of the robot is smooth and no distortion can be inspected.

10p dathienlang1012 03-05-2024 7 2   Download

Bài báo "Nghiên cứu mạng học sâu ứng dụng trong việc nhận dạng và phân loại tự động hư hỏng bánh răng" đề xuất một phương pháp tự động chẩn đoán và phân loại hư hỏng của bánh răng dựa trên phép biến đổi Wavelet liên tục (Contiuous Wavelet Transform) kết hợp với mạng nơ-ron tích chập (Convolutional Neural Network) (CNN). Đây là một nhóm phương pháp mới đòi hỏi phải có sự nghiên cứu chuyên sâu để từng bước áp dụng trong công nghiệp. Mời các bạn cùng tham khảo!

10p dathienlang1012 03-05-2024 3 1   Download

Lecture Multimedia communication - Lesson 6: JPEG2000. This lesson provides students with content about: key features; operation flow; discrete wavelet transform; EBCOT; JPEG2000 features; JPEG vs. JPEG2000;... Please refer to the detailed content of the lecture!

14p codabach1016 03-05-2024 2 0   Download

Part 1 book "Wavelets in physics" includes content: Guided tour through the book; wavelet analysis - a new tool in physics; the 2-D wavelet transform, physical applications and generalizations; wavelets and astrophysical applications; turbulence analysis, modelling and computing using wavelets.

226p muasambanhan05 22-01-2024 5 2   Download

In order to further improve the accuracy of islanding detection, this paper proposes an islanding detection method that combines wavelet packet transform and support vector machine. The experimental results verify that the method has the advantages of high islanding detection accuracy, small detection blind area, and fast detection speed.

5p vimarillynhewson 02-01-2024 6 3   Download

This paper proposes a smart routing-transmission protocol and the use of wavelet transform to deliver images fast and reliably on a sink-originating tree topology. In this approach, the source multimedia node utilizes the wavelet transform to compress the captured image, segments the image, and forwards all segments along the data path.

8p vimarillynhewson 02-01-2024 6 3   Download

Ebook "The geography of finance: Corporate governance in the global marketplace" tackles crucial issues regarding the emerging global market for corporate governance. The authors describe and explain the transformation of European corporate governance in the light of the imperatives driving global financial markets, using an innovative analytical framework.

261p tuongnhuoclan 28-11-2023 8 5   Download

Continued part 1, part 2 of ebook "Physics of oscillations and waves: With use of Matlab and Python" provides readers with contents including: Chapter 10 - Reflection, transmission and polarization; Chapter 11 - Measurements of light, dispersion, colours; Chapter 12 - Geometric optics; Chapter 13 - Interference diffraction; Chapter 14 - Wavelet transform; Chapter 15 - Coherence, dipole radiation and laser; Chapter 16 - Skin depth and waveguides;...

280p dangsovu 20-10-2023 8 5   Download

Ebook "The transform and data compression handbook" includes content: Karhunen-Loève transform, the discrete fourier transform, comparametric transforms for transmitting eye tap video with picture transfer protocol, discrete cosine and sine transforms, lapped transforms for image compression, wavelet based image compression, fractal based image and video compression, compression of wavelet transform coefficients.

399p haojiubujain07 20-09-2023 4 3   Download

Part 1 of ebook "Wavelet analysis in civil engineering" provides readers with contents including: introduction to wavelets; vibration analysis of SDOF and MDOF systems in the wavelet domain; ground motion characterization and PSA response of SDOF system; wavelet-based analysis of linear MDOF system;...

126p thamnhuocgiai 24-09-2023 4 1   Download

Continued part 1, part 2 of ebook "Higher mathematics for Physics and Engineering" provides readers with contents including: fourier analysis; fourier series; fourier transformation; laplace transformation; wavelet transformation; differential equations; ordinary differential equations; system of ordinary differential equations; partial differential equations; tensor analyses; cartesian tensors; non-cartesian tensors; tensor as mapping;...

352p lytamnguyet 04-08-2023 7 3   Download

Bài viết Đánh giá hiệu quả kỹ thuật thủy vân bền vững trên những miền tần số kết hợp đề xuất lược đồ thủy vân mù (blind watermarking) áp dụng cho ảnh số sử dụng biến đổi DWT (Discrete Wavelet Transform) kết hợp DCT (Discrete Cosine Transform) và SVD (Singular Value Decomposition) dựa trên thống kê.

14p viannee 02-08-2023 7 4   Download

We present a new method for image compression using the Haar wavelet transform (HWT) in all-optical domain. The proposed architecture is based on the optical Haar wavelet transform using only one 6×6 multimode interference (MMI) coupler.

11p viannee 02-08-2023 5 3   Download

In this paper, Wavelet transforms for the recognition and localization of short circuits faults on the power transmission lines. In that, the voltage waves and current waves on the lines are simulated by Simulink - Matlab.

5p vidoctorstrange 06-05-2023 5 3   Download

This paper presents a method to distinguish transients arising out of isolated capacitor switching, back-toback capacitor switching, prestrike capacitor switching, restrike capacitor switching and voltage magnification.

7p vidoctorstrange 06-05-2023 4 2   Download

Ebook Introduction to Data Compression (Third edition): Part 2 presents the following content: Chapter 10 vector quantization, chapter 11 differential encoding, chapter 12 mathematical preliminaries for transforms, subbands, and wavelets, chapter 13 transform coding, chapter 14 subband coding, chapter 15 wavelet-based compression, chapter 16 audio coding, chapter 17 analysis/synthesis and analysis by synthesis schemes, chapter 18 video compression, A probability and random processes, B a brief review of matrix concepts, C the root lattices.

408p runthenight08 12-04-2023 9 5   Download

In this paper, a new mother wavelet function for effective analysis of the locations of the close potential field sources is used. By theoretical modeling, using the wavelet transform modulus maxima (WTMM) method, the relative function between the wavelet scale factor and the depth of gravity source is set up.

10p vipagani 24-10-2022 3 2   Download

Continued part 1, part 2 of book "Introduction to Data Compression (Fourth edition)" provide with knowledge about: differential encoding; mathematical preliminaries for transforms, subbands, and wavelets; transform coding; subband coding; wavelet-based compression; audio coding; analysis/synthesis and analysis by synthesis schemes; video compression; probability and random processes;...

392p hanlinhchi 24-10-2022 12 5   Download

The research "A Robust Approach to Stereoscopic 3-D Video Watermarking Using Adaptive Hysteresis Noise Gate" aims to introduce an alternative approach to watermarking stereoscopic threedimensional (S3-D) video using a dual-tree complex wavelet transform (DT-CWT) with an adaptive hysteresis noise gate or NG-DCWT for short. The DT-CWT has demonstrated superior performance in video watermarking when compared with direct spatial watermark embedding techniques, as well as other traditional frequency-based approaches.

171p runordie3 06-07-2022 6 1   Download

Continued part 1, part 2 of book "Introduction to Data Compression (Third edition)" provide with knowledge about: differential encoding; mathematical preliminaries for transforms, subbands, and wavelets; transform coding; subband coding; wavelet-based compression; audio coding; analysis/synthesis and analysis by synthesis schemes; video compression; probability and random processes;...

356p britaikridanik 05-07-2022 6 4   Download