Tracking
This section in the top center of the Color Space Evaluation pattern tells you (very roughly) if the display is following the ST2084 EOTF curve for HDR content (or the BT.1886 / 2.4 gamma EOTF curve for SDR content). If the display follows the curve perfectly, the patch in the center of each rectangle should blend in with the rectangle around them. Most displays have at least some deviations at some levels. Some deviate all the time at all levels.
In order for this pattern to work, your display needs to be able to show a single-pixel checkerboard at correct brightness levels. Some technologies can’t do this because of technical limitations, notably LCOS. There also are some displays that do some kind of internal processing that make this pattern not show tracking correctly. On such displays, you’ll get zero matching boxes no matter what version of the pattern you look at.
Each of the six boxes that make up this pattern have a solid outline that is encoded at a particular absolute brightness (for HDR) or implied relative brightness (for SDR). The inside of each box is a checkerboard using two levels that are designed to visually average out to the same level as the outside of the box, assuming the brightness tracking is correct.
To score this section of the pattern, write down the number of boxes where the center section blends cleanly with the outside of the box. You may need to move a few feet away from the display to properly see the single-pixel checkerboard blend visually into a solid shade of gray.
HDR Only: This pattern comes in different versions with peak brightness at various levels for testing displays with different capabilities. You can change the peak brightness using the settings menu or by pressing the up-arrow on the remote while displaying the pattern. Start with the lowest brightness (600 cd/m²), then try the next brightest, and so on. Versions of the pattern designed for higher brightness than your display can produce are unlikely to show perfect tracking, which is normal.
追踪测试 (Tracking)
测试图顶部中间的这一部分可以(粗略地)告诉你:显示设备是否正确遵循了 HDR 内容的 ST2084 EOTF 曲线(或者是 SDR 内容的 BT.1886 / 2.4 Gamma 曲线)。如果显示设备完美遵循该曲线,则每个长方形中心的小方块应该与其周围的长方形融为一体。大多数显示设备在某些亮度级别上至少会存在一些偏差,而有些设备则在所有级别上始终偏离。
为了让此测试模式奏效,你的显示设备需要能够在正确的亮度水平下显示单像素棋盘格。由于技术限制,某些显示技术(特别是 LCOS)无法做到这一点。还有一些显示设备会进行某种内部处理,导致此模式无法正确显示追踪情况。在这些设备上,无论你观察哪个版本的测试模式,都无法看到匹配的方块。
构成该模式的六个方块各有一个实线外框,其编码基于特定的绝对亮度(针对 HDR)或隐含的相对亮度(针对 SDR)。每个方块的内部是一个由两个亮度级组成的棋盘格,在亮度追踪正确的前提下,这些亮度级在视觉上平均后的效果应与方块外框的亮度相同。
评分方法: 记录下中心部分与外框干净融合的方块数量。你可能需要后退几英尺,以便在视觉上让单像素棋盘格自然地混合成纯灰色。
仅限 HDR: 此模式提供针对不同峰值亮度水平的多个版本,以测试不同性能的显示设备。你可以通过设置菜单或在显示模式时按下遥控器的**“上方向键”**来更改峰值亮度。建议从最低亮度(600 cd/m²)开始,然后尝试下一个亮度级,依此类推。如果测试模式的版本设计亮度高于你显示设备的实际输出能力,通常无法呈现完美的追踪效果,这是正常现象。
This section in the top center of the Color Space Evaluation pattern tells you (very roughly) if the display is following the ST2084 EOTF curve for HDR content (or the BT.1886 / 2.4 gamma EOTF curve for SDR content). If the display follows the curve perfectly, the patch in the center of each rectangle should blend in with the rectangle around them. Most displays have at least some deviations at some levels. Some deviate all the time at all levels.
In order for this pattern to work, your display needs to be able to show a single-pixel checkerboard at correct brightness levels. Some technologies can’t do this because of technical limitations, notably LCOS. There also are some displays that do some kind of internal processing that make this pattern not show tracking correctly. On such displays, you’ll get zero matching boxes no matter what version of the pattern you look at.
Each of the six boxes that make up this pattern have a solid outline that is encoded at a particular absolute brightness (for HDR) or implied relative brightness (for SDR). The inside of each box is a checkerboard using two levels that are designed to visually average out to the same level as the outside of the box, assuming the brightness tracking is correct.
To score this section of the pattern, write down the number of boxes where the center section blends cleanly with the outside of the box. You may need to move a few feet away from the display to properly see the single-pixel checkerboard blend visually into a solid shade of gray.
HDR Only: This pattern comes in different versions with peak brightness at various levels for testing displays with different capabilities. You can change the peak brightness using the settings menu or by pressing the up-arrow on the remote while displaying the pattern. Start with the lowest brightness (600 cd/m²), then try the next brightest, and so on. Versions of the pattern designed for higher brightness than your display can produce are unlikely to show perfect tracking, which is normal.
追踪测试 (Tracking)
测试图顶部中间的这一部分可以(粗略地)告诉你:显示设备是否正确遵循了 HDR 内容的 ST2084 EOTF 曲线(或者是 SDR 内容的 BT.1886 / 2.4 Gamma 曲线)。如果显示设备完美遵循该曲线,则每个长方形中心的小方块应该与其周围的长方形融为一体。大多数显示设备在某些亮度级别上至少会存在一些偏差,而有些设备则在所有级别上始终偏离。
为了让此测试模式奏效,你的显示设备需要能够在正确的亮度水平下显示单像素棋盘格。由于技术限制,某些显示技术(特别是 LCOS)无法做到这一点。还有一些显示设备会进行某种内部处理,导致此模式无法正确显示追踪情况。在这些设备上,无论你观察哪个版本的测试模式,都无法看到匹配的方块。
构成该模式的六个方块各有一个实线外框,其编码基于特定的绝对亮度(针对 HDR)或隐含的相对亮度(针对 SDR)。每个方块的内部是一个由两个亮度级组成的棋盘格,在亮度追踪正确的前提下,这些亮度级在视觉上平均后的效果应与方块外框的亮度相同。
评分方法: 记录下中心部分与外框干净融合的方块数量。你可能需要后退几英尺,以便在视觉上让单像素棋盘格自然地混合成纯灰色。
仅限 HDR: 此模式提供针对不同峰值亮度水平的多个版本,以测试不同性能的显示设备。你可以通过设置菜单或在显示模式时按下遥控器的**“上方向键”**来更改峰值亮度。建议从最低亮度(600 cd/m²)开始,然后尝试下一个亮度级,依此类推。如果测试模式的版本设计亮度高于你显示设备的实际输出能力,通常无法呈现完美的追踪效果,这是正常现象。


