interlaced scanning

简明释义

隔行扫描

英英释义

例句

1.In video editing, understanding interlaced scanning is crucial for maintaining image quality.

在视频编辑中，理解交错扫描对于保持图像质量至关重要。

2.The television uses interlaced scanning to display images, which helps reduce flicker.

电视使用交错扫描来显示图像，这有助于减少闪烁。

3.The new display supports both interlaced scanning and progressive scanning modes.

新显示器支持交错扫描和逐行扫描模式。

4.When watching older films, you might notice that they were produced using interlaced scanning technology.

观看老电影时，你可能会注意到它们是使用交错扫描技术制作的。

5.Many standard-definition broadcasts use interlaced scanning to deliver smoother motion.

许多标准清晰度的广播使用交错扫描来提供更平滑的运动效果。

作文

In the world of television and video technology, the term interlaced scanning refers to a method of displaying images that enhances the visual quality by reducing flicker and improving motion portrayal. This technique is particularly significant in the context of traditional television broadcasts and older video formats. Understanding interlaced scanning not only helps us appreciate the evolution of video technology but also enhances our viewing experience.To grasp the concept of interlaced scanning, it is essential to compare it with its counterpart, progressive scanning. In progressive scanning, each frame of video is drawn sequentially from top to bottom. This method provides a smoother image, especially during fast motion scenes. However, it requires more bandwidth and processing power. On the other hand, interlaced scanning works by dividing each frame into two fields: one containing the odd lines and the other containing the even lines. These fields are displayed alternately, which means that only half of the lines are shown at any given moment. This approach was developed to make efficient use of bandwidth while still delivering a reasonably high-quality image.The historical context of interlaced scanning can be traced back to the early days of television. When television technology was in its infancy, engineers faced significant challenges in transmitting video signals over limited bandwidth. The introduction of interlaced scanning allowed for a more efficient transmission of images, making it possible to broadcast moving pictures without requiring excessive bandwidth. This innovation played a crucial role in the widespread adoption of television as a medium for entertainment and information.Despite its advantages, interlaced scanning is not without its drawbacks. One of the most notable issues is the potential for artifacts, such as flickering or blurring, particularly in scenes with rapid motion. These artifacts occur because the two fields are captured at slightly different times, leading to discrepancies in the displayed image. As technology advanced, the limitations of interlaced scanning became more apparent, paving the way for the adoption of progressive scanning in modern displays, such as LCD and LED screens.Today, many viewers may not realize the role of interlaced scanning in their everyday viewing experiences. However, understanding this technology can deepen our appreciation for the complexity behind the images we see on our screens. It also highlights the ongoing evolution of video technology and the continuous efforts made by engineers and designers to improve image quality.In conclusion, interlaced scanning is a vital concept in the realm of video technology, representing a significant milestone in the development of television. While it has been largely replaced by progressive scanning in modern displays, its historical importance and impact on the viewing experience cannot be overlooked. By exploring the intricacies of interlaced scanning, we gain insight into the technological advancements that have shaped the media landscape we enjoy today.

在电视和视频技术的世界中，术语交错扫描指的是一种显示图像的方法，通过减少闪烁和改善运动表现来增强视觉质量。这种技术在传统电视广播和旧视频格式的背景下尤其重要。理解交错扫描不仅有助于我们欣赏视频技术的演变，还能提升我们的观看体验。要掌握交错扫描的概念，有必要将其与其对立面逐行扫描进行比较。在逐行扫描中，每帧视频是从上到下依次绘制的。这种方法提供了更平滑的图像，尤其是在快速运动场景中。然而，它需要更多的带宽和处理能力。另一方面，交错扫描通过将每帧分为两个场工作：一个包含奇数行，另一个包含偶数行。这些场交替显示，这意味着在任何给定时刻只显示一半的行。这种方法被开发出来以有效利用带宽，同时仍然提供相当高质量的图像。交错扫描的历史背景可以追溯到电视的早期。当电视技术处于初期阶段时，工程师面临着通过有限带宽传输视频信号的重大挑战。交错扫描的引入使得更高效的图像传输成为可能，使得广播动态图像成为可能，而不需要过多的带宽。这一创新在电视作为娱乐和信息媒介的广泛采用中发挥了至关重要的作用。尽管有其优点，交错扫描也并非没有缺点。其中最显著的问题之一是潜在的伪影，例如闪烁或模糊，特别是在快速运动场景中。这些伪影的出现是因为两个场是在稍微不同的时间捕获的，导致显示图像中的差异。随着技术的发展，交错扫描的局限性变得更加明显，为现代显示器（如LCD和LED屏幕）逐行扫描的采用铺平了道路。今天，许多观众可能没有意识到交错扫描在他们日常观看体验中的作用。然而，理解这项技术可以加深我们对我们在屏幕上看到的图像背后复杂性的欣赏。它还突显了视频技术的持续演变以及工程师和设计师为改善图像质量所做的持续努力。总之，交错扫描是视频技术领域的重要概念，代表了电视发展中的一个重要里程碑。尽管在现代显示器中，它在很大程度上被逐行扫描所取代，但其历史重要性和对观看体验的影响不可忽视。通过探讨交错扫描的复杂性，我们能够深入了解塑造我们今天享受的媒体环境的技术进步。