Results 41 to 50 of about 658,126 (299)

FreeNoise: Tuning-Free Longer Video Diffusion via Noise Rescheduling [PDF]

arXiv, 2023
With the availability of large-scale video datasets and the advances of diffusion models, text-driven video generation has achieved substantial progress. However, existing video generation models are typically trained on a limited number of frames, resulting in the inability to generate high-fidelity long videos during inference.
arxiv  

Quantitative quality control of 3D water tank using image analysis

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and objective Accurate beam data acquisition using three‐dimensional (3D) water tanks is essential for beam commissioning and quality control (QC) in clinical radiation therapy. This study introduces a novel method for quantitative QC of the system, utilizing MV images and webcam videos.
Yuki Tanimoto, Kohei Sugimoto, Kazunobu Koshi, Akira Hiroshige, Shohei Yoshida, Yoshiki Fujita, Atsuki Nakahira, Daiki Nakanishi, Hirofumi Honda, Masataka Oita   +9 more
wiley   +1 more source

Online burr video denoising by learning sparsifying transform

IET Image Processing, 2019
The burrs on high‐voltage copper contact leads to point discharge and device damage. Since the high‐voltage copper contact has different machining batch and the contour various which the machine tool remove is not economic and robot usually is used to ...
Lili Han, Shujuan Li, Xiuping Liu, Jiaan Guo   +3 more
doaj   +1 more source

Shielding facial physiological information in video

Mathematical Biosciences and Engineering, 2022
With the recent development of non-contact physiological signal detection methods based on videos, it is possible to obtain the physiological parameters through the ordinary video only, such as heart rate and its variability of an individual.
Kun Zheng, Junjie Shen, Guangmin Sun, Hui Li, Yu Li   +4 more
doaj   +1 more source

Very High‐Frequency Oscillations in Mesial Temporal Lobe Epilepsy: Identifying the Epileptogenic Zone

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the reliability of very high‐frequency oscillations (VHFOs, 500–2000 Hz) as biomarkers in identifying the epileptogenic zone (EZ) in mesial temporal lobe epilepsy (MTLE) patients. Methods We reviewed 19 MTLE patients who underwent stereo‐electroencephalography‐guided radiofrequency thermocoagulation.
Stéphane Jean, Yihai Dai, Yan Cui, Donghuo Deng, Zhe Qian, Panashe Tevin Tagu, Weitao Chen, Weihong Liu, Xiaoqiang Wei, Xinrong Fang, Shiwei Song   +10 more
wiley   +1 more source

POS: A Prompts Optimization Suite for Augmenting Text-to-Video Generation [PDF]

arXiv, 2023
This paper targets to enhance the diffusion-based text-to-video generation by improving the two input prompts, including the noise and the text. Accommodated with this goal, we propose POS, a training-free Prompt Optimization Suite to boost text-to-video models.
arxiv  

Icephobic Gradient Polymer Coatings Coupled with Electromechanical De‐icing Systems: A Promising Ice Repellent Hybrid System

Advanced Engineering Materials, EarlyView.
A hybrid system for de‐icing made of gradient polymer coatings, deposited on aluminum coupled with an electromechanical system, is demonstrated as an effective and durable strategy for reducing drastically ice adhesion. The system is capable of detaching ice blocks over the coating in less than 1 s, regardless of the ice type and covered area ...
Gabriel Hernández Rodríguez, Giulia Gastaldo, Luca Stendardo, Younes Rafik, Jason Pothin, Marc Budinger, Carlo Antonini, Valérie Pommier‐Budinger, Anna Maria Coclite   +8 more
wiley   +1 more source

Robust video watermarking with complex conjugate symmetric sequency transform using SURF feature matching

Cogent Engineering
This article proposes a video watermarking technique by concealing the watermark in the low frequency bands of phase using Conjugate Symmetric Sequency Complex Hadamard Transform (CS-SCHT) and Speeded Up Robust Feature (SURF). The CS-SCHT is effective in
Srilakshmi Aouthu, Meenakshi Kollati, Swaraja Kuraparthi, Aman Mittal, Abhishek Joshi   +4 more
doaj   +1 more source

A Technique for Evaluation of CCD Video-Camera Noise [PDF]

IEEE Transactions on Circuits and Systems for Video Technology, 2008
This paper presents a technique to identify and measure the prominent sources of sensor noise in commercially available charge-coupled device (CCD) video cameras by analysis of the output images. Noise fundamentally limits the distinguishable content in an image and can significantly reduce the robustness of an image processing application.
Irie, K, McKinnon, A, Unsworth, K, Woodhead, I   +3 more
openaire   +2 more sources

A Framework For TV Logos Learning Using Linear Inverse Diffusion Filters For Noise Removal [PDF]

, 2013
Different logotypes represent significant cues for video annotations. A combination of temporal and spatial segmentation methods can be used for logo extraction from various video contents.
Gonzalez-Linares, Jose Maria, Guil-Mata, Nicolas, Ramos-Cozar, Julian, Tameze, Claude, Valev, Ventzeslav, Zeljković, Vesna   +5 more
core   +1 more source