18453905. HDR TONE MAPPING METHODS WITH SCENE ADAPTIVE PARAMETERIZED TONE MAP FUNCTION simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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HDR TONE MAPPING METHODS WITH SCENE ADAPTIVE PARAMETERIZED TONE MAP FUNCTION

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Li Tao of Mountain View CA (US)

Yeong-Taeg Kim of Mountain View CA (US)

Chenguang Liu of Mountain View CA (US)

Pradeep Nagesh of Mountain View CA (US)

HDR TONE MAPPING METHODS WITH SCENE ADAPTIVE PARAMETERIZED TONE MAP FUNCTION - A simplified explanation of the abstract

This abstract first appeared for US patent application 18453905 titled 'HDR TONE MAPPING METHODS WITH SCENE ADAPTIVE PARAMETERIZED TONE MAP FUNCTION

Simplified Explanation

The patent application describes a method for processing video to optimize its display on different types of screens.

  • The method starts by receiving a quantized video that was originally mastered for a specific display with a certain maximum luminance level.
  • The quantized video is then de-quantized to generate a de-quantized video.
  • A scene-adaptive tone mapping function is applied to the de-quantized video to adjust its brightness levels based on the content of each scene.
  • The result is a tone mapped video that is optimized for display on a target display with a lower maximum luminance level.
  • The tone mapped video is then displayed on the target display.

Potential applications of this technology:

  • Video streaming platforms can use this method to optimize the display of their content on various devices with different display capabilities.
  • Television manufacturers can incorporate this method into their devices to enhance the viewing experience by adjusting the video output based on the specific display characteristics.

Problems solved by this technology:

  • Different displays have different maximum luminance levels, which can result in videos appearing too bright or too dark on certain screens. This method solves this problem by adapting the video's brightness levels to match the target display.

Benefits of this technology:

  • Improved visual quality: The scene-adaptive tone mapping function ensures that the video is displayed with optimal brightness levels, enhancing the viewing experience.
  • Compatibility: The method allows videos to be displayed correctly on different types of displays, ensuring consistent quality across devices.
  • Efficient video distribution: By optimizing the video for each target display, bandwidth and storage requirements can be reduced without compromising visual quality.


Original Abstract Submitted

A method includes receiving a quantized video having a first maximum luminance level or brightness associated with a mastering display with which the quantized video was mastered. The method also includes de-quantizing the quantized video in order to generate a de-quantized video. The method further includes applying a scene-adaptive tone mapping function to the de-quantized video in order to generate a tone mapped video. In addition, the method includes displaying the tone mapped video on a target display. The tone mapped video has a second maximum luminance level or brightness associated with the target display, and the second maximum luminance level or brightness is less than the first maximum luminance level or brightness.

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