關於 autofocus algorithm ，我們在網路上蒐集到這些相關的討論、資訊與評價

#11. Team:Cambridge-JIC/Autofocus - iGEM 2015

The strategy of the autofocus algorithm is to calculate the focus score for each frame imaged while gradually changing the sample-objective distance. The most ...

#12. An autofocus algorithm for microscopic hyperspectral imaging ...

A new microscopic imaging autofocusing algorithm. Adaptive wavelength focusing. In detail, we propose an autofocus algorithm with Laplace operator for coarse ...

#13. Autofocus algorithm using optimized Laplace evaluation ...

This paper presents a new focusing algorithm based on improved Laplacian operator and mountain-climb search algorithm. The clear image after ...

#14. A Real-time Continuous Automatic Focus Algorithm for Digital ...

Most conventional continuous auto-focus algorithms appearing in the literature fail to address how to focus on a desired near object when there are multiple ...

#15. Autofocus algorithm based on dispersion of areas

Abstract. In the vision measurements, precision focus is a very important factor. For fast high precision autofocus, appropriate focusing evaluation functions ...

#16. Microscope autofocus algorithm based on number of image ...

In experiments involving a Mirau objective lens, the proposed algorithm matched the autofocusing performance of conventional algorithms, and ...

#17. Autofocusing Optimal Search Algorithm for a Telescope System

Auto-focusing is necessary for imaging systems designed for astronomical observations. The automatic focus system searches for the best focus ...

#18. An autofocus algorithm considering wavelength changes for ...

Microscopic hyperspectral imaging technology has been widely used to acquire pathological information of tissue sections. Autofocus is one of the most ...

#19. mehmetkacmaz/Median-Based-AutoFocus-Algorithm - GitHub

Edge Detection Based Autofocus Algorithm to Detect Accurate Camera Working Distance. Working Principle. This is the Python and Matlab implementation of our ...

#20. Improving the accuracy and low-light performance of contrast ...

focus, focus measures, and focus search algorithms. 2.1. Focus measures. Contrast-detection autofocus (AF) makes use of a focus mea-.

#21. Autofocus algorithms for lensless on-chip microscopy ...

In this paper, we propose an objective evaluation of autofocusing algorithms on in-line holograms simulated by Mie theory and T-matrix method ...

#22. Design and Implementation of an Autofocusing Algorithm for ...

The Goniometer Robotic apparatus for compound eye at the Computational Physics Laboratory at the University of Groningen is requiring an autofocus algorithm ...

#23. An automatic focusing algorithm

An Automatic Focusing Algorithm. Sheng-Fuu Lin, You-Tasi Lin, Chien-Kun Su. Department of Electrical and Control Engineering, National Chiao Tung University ...

#24. An algorithm selection methodology for automated focusing in ...

Autofocus systems are essential in optical microscopy. These systems typically sweep the sample through the focal range and apply an algorithm ...

#25. A back-projection autofocus algorithm based on flight ...

In this paper, a new autofocus algorithm is presented for back-projection (BP) image formation of synthetic aperture radar (SAR) imaging.

#26. Implementation of an autofocus algorithm based on ... - CEITEC

Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup.

#27. An Autofocus Algorithm Based on Clear Domain

An Autofocus Algorithm Based on Clear Domain. Authors. He Fan;Wang Shaozhi;Xu Xiaowen;Zhang Qin;Chen Kuo;Zhao Zhiqiang ...

#28. Feature Preserving Autofocus Algorithm for Phase Error ...

Phase gradient autofocus (PGA) is one of the most widely used algorithms to estimate the phase error [5]. The method assumes all the complex reflectivity in the ...

#29. Autofocus algorithm using one-dimensional Fourier - Cicese

A new autofocus algorithm based on one-dimensional Fourier transform and ... frequency vector, the most out of focus image, we find the best focusing.

#30. Application of the phase gradient autofocus algorithm to time ...

This paper studies the application of the phase gradient autofocus (PGA) algorithm originally developed for extracting degrading phase errors in synthetic ...

#31. Autofocus algorithm for microscopy system based on cross ...

Optimized automatic focusing of a microscope objective based on a cross correlation between a representative focus metric scan and a focus metric scan of a ...

#32. Real-time Autofocus Algorithm in Laser Speckle Contrast ...

robust Autofocus (AF) algorithm for PSI was implemented. ... Laser speckle contrast imaging, Autofocus, Blind image sharpness assessment, ...

#33. Auto-Focus Algorithm for Moving Target Image

Auto-focus technology is the core part of the automatic optical measure system. Auto-focusing algorithm based on image processing is a long-standing topic ...

#34. Autofocusing Algorithm for Pixel-Super-Resolved Lensfree On ...

In this study, we proposed a high-precision autofocusing algorithm for multi-height pixel-super-resolved lensfree on-chip microscopy.

#35. On the distinction between phase images and two-view light ...

Abstract—A phase detection autofocus (PDAF) algorithm iteratively estimates the phase shift between the left and right phase images captured in an autofocus ...

#36. Implementation of an autofocus algorithm based on searching ...

Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup.

#37. range-dependent autofocus algorithm based on the Tikhonov ...

Phase Gradient Autofocus (PGA) is an algorithm developed to estimate phase errors in synthetic aperture radar (SAR) images. It is widely used in SAR image ...

#38. ISAR Autofocus Algorithms - IET Digital Library

Autofocus allows us to generate images with better quality by automatically adjusting the image focusing parameters. For radar imaging, autofocus means to ...

#39. Fast autofocus algorithm for automated microscopes

We present a new algorithm to determine, quickly and accurately, the best-in-focus image of biological particles. The algorithm is based on a ...

#40. The development of a predictive autofocus algorithm using a ...

A general autofocus algorithm is presented and results given which reflect the predictive properties of this model. The imaging system used for the generation ...

#41. Autofocus algorithm using one-dimensional Fourier transform ...

A new autofocus algorithm based on one-dimensional Fourier transform and Pearson correlation for Z automatized microscope is proposed.

#42. How the Camera Autofocus Feature Works in Digital ... - Medium

The contrast-based autofocus algorithm requires many computations -> L * O(Contrast), where L is the number of possible camera lens positions ...

#43. BEMD-based two-dimensional SAR autofocus algorithm

The two-dimensional (2D) autofocus algorithm simultaneously compensates both the residual range migration and propagation-induced phase errors.

#44. An Improved Phase Gradient Autofocus Algorithm Used in ...

The Phase Gradient Autofocus (PGA) algorithm can remove the high order phase error effectively, which is of great significance to get high resolution images ...

#45. Image-based autofocusing algorithm applied in image fusion ...

Image-based autofocusing algorithm applied in image fusion process for optical microscope. Yen Chung Wang, Jing Feng Weng *, Po Hsun Wu, Guo Hao Lu, Chao Feng ...

#46. SAR Autofocus Algorithm of iterative error compensation ...

SAR Autofocus Algorithm of iterative error compensation based on PGA. Xiaoze Hou 1 and Yanheng Ma 1. Published under licence by IOP Publishing Ltd

#47. Iterative autofocus algorithms for scanning electron microscopy

A robust and reliable autofocus algorithm is important concern for the automation of a Scanning Electron Microscope (SEM). Comparison of existing autofocus ...

#48. Autofocus routine detecting very small differences in blur

Surprisingly, many quite simple autofocus algorithms actually performed quite well on this problem. I implemented 11 of the 16 algorithms ...

#49. Autofocus algorithms - Image.sc Forum

Hi all, I am writing several autofocus algorithms such as absolute gradient, Brenner, Energy of Laplacian, normalized variance, ...

#50. Autofocus measurement for imaging devices | DXOMARK

This might aid a contrast AF algorithm that has to guess its initial focusing direction. A defocus target placed farther away from the camera might increase the ...

#51. A Generalized Phase Gradient Autofocus Algorithm - CORE

The phase gradient autofocus (PGA) algorithm has seen widespread use and success within the synthetic aperture radar (SAR) imaging community ...

#52. [Paper] A Bayesian derivation of an iterative autofocus/super ...

摘要. The author derives an estimate-maximize formulation of a Bayesian super-resolution algorithm for reconstructing scattering cross sections from coherent ...

#53. Backprojection Autofocus for Synthetic Aperture Radar

formation algorithm places few restrictions on SAR imaging, thus it is desirable to have an autofocus algorithm that is similarly unconstrained.

#54. A Simple Model for On-Sensor Phase-Detection Autofocusing ...

Application of stochastic approximation algorithms to unimodal and non-unimodal focus functions is shortly discussed. Keywords: Phase Detection Autofocus; On- ...

#55. A Generalized Phase Gradient Autofocus Algorithm - DTIC

In this work, a generalized phase gradient autofocus GPGA algorithm is developed which is applicable with both the polar format algorithm PFA and back ...

#56. A Real-time Continuous Automatic Focus Algorithm for Digital ...

Most conventional continuous auto-focus algorithms appearing in the literature fail to address how to focus on a desired near object when ...

#57. AN ADAPTIVE SQUARED GRADIENT ALGORITHM ... - ijicic

For this purpose, 500 different thermal images were processed by the widely used autofocusing algorithms such as Variance, Autocorrelation, Brenner and Squared.

#58. An Auto-Focus Algorithm of Fast Search Based on Combining ...

A coarse and fine combined fast search and auto-focusing algorithm was suggested in this paper. This method can automatically search and find the focal ...

#59. A Novel Autofocus Algorithm for Ship Targets in SAR Images ...

Synthetic Aperture Radar (SAR), · Ship target, · Adaptive momentum estimation optimizer, · Space-Variant Minimum Entropy (SVME), · Autofocus algorithm.

#60. Microscope autofocus algorithm based on number of ... - X-MOL

This paper presents a passive autofocus algorithm applicable to interferometric microscopes. The proposed algorithm uses the number of slope ...

#61. Validating Autofocus Algorithms with Automated Tests - MDPI

Keywords: robotics; cameras; algorithm; auto-focus ... and speed were the two most important factors for the autofocus algorithm [3–5].

#62. Enhanced autofocus algorithm using robust focus measure ...

Abstract. A new passive autofocus algorithm consisting of a robust focus measure for object detection and fuzzy reasoning for target selection is presented. The ...

#63. Detecting Well-Focused Images - Cardinal Peak

He mentioned that he expected the algorithm to be computationally intensive. ... Within the category of passive autofocus algorithms, ...

#64. Distribution UC-706 The Phase Gradient Autofocus Algorithm

We have recently presented a new non-parametric autofocus technique, the Phase Gra dient Autofocus (PGA) algorithm for phase correction of Synthetic Aperture ...

#65. Focusing Algorithm of Automatic Control ... - ProQuest

Autofocus technology is a key technology in robot vision and digital video ... Autocontrol Microscope Focusing Algorithm Based on Digital Image Processing.

#66. A fast autofocus algorithm for synthetic aperture radar ...

A novel autofocus algorithm with a computational complexity which is at least an ... The algorithm has been tested on data from the Danish Airborne SAR, ...

#67. A time domain phase-gradient based ISAR autofocus algorithm

Unlike many other ISAR autofocus techniques, the algorithm does not make use of several computationally intensive iterations between the data and image domains ...

#68. Phase gradient Autofocusing Technique (PGA)

Abstract: The phase-gradient autofocusing algorithm (PGA) has been widely used in spotlight Synthetic Aperture Radar (SAR) to compensate motion ...

#69. Image Processing and Microscope Autofocus - MATLAB Central

Learn more about image processing, function, algorithm. ... I'm attempting to write a plugin to autofocus a lab microscope in MATLAB.

#70. Design and Implementation of a Real-Time Autofocus ...

A real-time and reliable passive autofocus algorithm has been developed and ... Prior to the hardware implementation, different algorithms for image ...

#71. Fast autofocus algorithm for automated ... - Patent Lens

Spatial frequency , · Fourier transform , · Autofocus , · Algorithm , · Convolution , · Artificial intelligence , · Computer vision , · Computer science , ...

#72. autofocus algorithm on IMX6 side - NXP Community

Hi Community, We need to add autofocus feature for our MIPI camera. The camera sensor is OV5645, VCM ( voice coil motor ) driver IC is ...

#73. Autofocus algorithm example - NI Community

... ton of hits saying to search through the forum for examples but I haven't been able to find a good example of an autofocusing algorithm.

#74. Auto-Focus - Nighttime Imaging 'N' Astronomy

Auto-Focus algorithm #. The autofocus logic is as follows: For Star HFR, N.I.N.A. takes an exposure at current focuser position, and computes the Star HFR.

#75. Autofocus Algorithm - Geometry & Recognition - 티스토리

Autofocus Algorithm · Image Recognition 2012. 6. 3. 08:50. 1. Derivative Based Algorithms: Thresholded absolute gradient: f=∑x∑y|I(x+1,y)−I(x,y)| f ...

#76. "The Phase Gradient Autofocus Algorithm with Range ...

The Phase Gradient Autofocus (PGA) algorithm is widely used in spotlight mode SAR for motion compensation. The Maximum Likelihood PGA (ML ...

#77. Understand How Autofocus Works: Part 2

After our first look into autofocus, we'll now take a more technical ... result of the overall final algorithm should fall between 1 and -1, ...

#78. How does autofocus work on your smartphone? - GiffGaff

Today, we turn our attention to auto-focus on your camera phone. ... your smartphone uses an algorithm based on measuring the contrast.

#79. Innovative, fast autofocusing system with liquid lens objective

It uses a liquid lens objective, which implements a voltage control of the focal length, and an autofocus algorithm. The algorithm finds the ...

#80. Robust autofocusing for scanning electron microscopy based ...

The results of these dual networks showed successful autofocus ... K. A robust SEM auto-focus algorithm using multiple band-pass filters.

#81. How to achieve enhanced autofocus performance with high ...

One of the challenges of Autofocus (AF) cameras is they have a default focus range, ... This algorithm is one of the 3A functionalities of the camera.

#82. Inverse Synthetic Aperture Radar Imaging With MATLAB Algorithms

To minimize these motion errors, MOCOMP techniques, also known as autofocusing algorithms have to be applied. The autofocus algorithms can be grouped into ...

#83. Wearable Sensors and Robots: Proceedings of International ...

A coarse-to-fine autofocus algorithm based on global search (Kehtarnavaz and Oh 2003) is proposed to reduce the time cost and eliminate negative influence ...

#84. How do smartphone cameras work? - Android Police

A slightly faster method is called phase-detection autofocus. ... converted into a full-color image after the fact via complicated demosaicing algorithms.

#85. Talking Fujifilm X-Pro4, Autofocus, Fujifilm X-T5 Sales, 5th ...

... Fuji is also improving the algorithm itself to obtain better autofocus; Detection and Focus are different, and Fujifilm needs to improve ...

#86. 4.10.17 Form control infrastructure - HTML Standard - whatwg

By default this algorithm is to simply return the control's value. The select element does not have a value; the selectedness of its option elements is what is ...

#87. Tips for Portrait Photography, Using the Sony A7R V by Reza ...

The new autofocus system on the A7R V is amazing for portrait ... This issue is completely negated thanks to the new AI algorithm on the A7R ...

#88. Sony a7RV in-depth review - Digital Photography Review

More processing power and more sophisticated algorithms offer a ... convey how much more sophisticated (and complex) the new camera's autofocus system is, ...

#89. Insta360 Link - The AI-powered 4K webcam

AI algorithms enhance your presentations, focusing and squaring off your whiteboard to give your audience a much clearer view.

#90. Easy Android Camera2 with BoofCV - CodeProject

The Auto-Focus Algorithm. Example of an in focus and out of focus image. Notice how the edge intensity is larger in the in focus image?

#91. CodeMirror 5 User Manual

CodeMirror applies the Unicode Bidirectional Algorithm to each line, ... or it has an autofocus attribute and no other element is focused. phrases: ?object ...

#92. FUJIFILM X100V | Cameras | FUJIFILM X Series & GFX – Global

... in boosting AF performance through a newly developed focusing algorithm. ... Phase detection autofocus pixels are placed across the image sensor, ...

#93. Autofocusing Algorithm Selection in Computer ... - Yumpu

focus algorithm for different microscopy applications. Index Terms - autofocusing, microscopy, ranking, selection. I. INTRODUCTION.

#94. HTML - GeeksforGeeks

Learn; DSA · Algorithms · Data Structures · SDE Cheat Sheet · Machine learning · CS Subjects · Video Tutorials · Courses.

#95. Sony Electronics Introduces Newest Compact Addition to the ...

The 50mm F1.4 G Master's autofocus is extremely fast and precise, ... The XD linear motors and control algorithm optimize response to ...

#96. Graduate student wins Acoustical Society of ... - Penn State

Dalton proposed a new image algorithm to help find unexploded ... “Since writing the paper, I've come up with a focusing algorithm that ...