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相关概念视频

Zener Diodes01:16

Zener Diodes

402
Zener diodes are specialized semiconductor devices designed to operate in the reverse breakdown region, where they allow current to flow into the cathode, making it positive relative to the anode. This reverse operation distinguishes Zener diodes from conventional diodes and enables their use in various applications, most notably as voltage regulators. One of the defining characteristics of Zener diodes is their nearly vertical I-V (current-voltage) characteristic curve above a certain...
402
PI Controller: Design01:24

PI Controller: Design

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Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
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PD Controller: Design01:26

PD Controller: Design

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In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
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Diode: Forward bias01:20

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In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
The behavior of a diode in forward bias...
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Design Example: Resistive Touchscreen01:14

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A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
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Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device
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基于ZYNQ的可见光除雾系统设计实现

Bohan Liu1,2, Qihai Wei1,2, Kun Ding1

  • 1Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.

Sensors (Basel, Switzerland)
|April 13, 2024
PubMed
概括
此摘要是机器生成的。

本研究介绍了基于ZYNQ平台的图像除雾系统,该系统可以在雾条件下提高可见性. 这种新的方法改进了大气光和透射率的估计,提高了实时应用的图像质量.

关键词:
这就是ZYNQQ.在黑暗道之前,黑暗道之前.清除雾的方法图像分割 图像细分 图像细分可见光 可见光 可见光.

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科学领域:

  • 计算机视觉 计算机视觉
  • 图像处理 图像处理
  • 嵌入式系统 嵌入式系统

背景情况:

  • 雾环境通过降低对比度和失去信息来降低图像质量.
  • 现有的脱雾系统经常受到高成本和低实时性能的影响.

研究的目的:

  • 在ZYNQ平台上设计和实施一个高效的实时图像除雾系统.
  • 克服传统除雾算法的局限性,提高输出图像质量.

主要方法:

  • 开发了一种天空细分算法,以完善大气光和透射率估计.
  • 整合色彩平衡后脱雾,以提高图像质量.
  • 利用 ZYNQ 平台 (FPGA) 的可编程逻辑 (PL) 功能进行并行处理.

主要成果:

  • 该系统有效地消除雾,显著改善图像对比度和清晰度.
  • 实现了大气参数的准确估计,最大限度地减少了天空区域的扭曲.
  • 实施的系统展示了实时处理能力.

结论:

  • 基于ZYNQ的脱雾系统为雾状图像增强提供了具有成本效益和实时的解决方案.
  • 提出的天空细分和色彩平衡方法提高了除雾性能.
  • 该系统满足在恶劣天气条件下实时视频处理的实际要求.