Back to results
US 10,834,330 B2Granted
Video processor, display apparatus, and video processing method
AssigneeSeiko Epson Corporation
InventorsMiki Nagano, Yoshihito Hayashi, Sachio Tsuboi, Isao Kobayashi
Life of this patent
Estimating the term…
Abstract
A video processor includes a receiving section that receives video information representing video images and luminance-related information on the luminance of the video images and a video processing section that determines an expansion target luminance range of the video images based on the luminance-related information and expands the expansion target luminance range in such a way that the maximum luminance in the expansion target luminance range increases.
Claims13
A video processing method comprising:
- receiving video information representing video images and luminance-related information on luminance of the video images, the luminance-related information being formed of a plurality of types of luminance-related information;
- determining an expansion target luminance range of the video images for each of the types of luminance-related information based on the luminance-related information;
- selecting one expansion target luminance range out of the determined expansion target luminance ranges that has a low maximum luminance threshold;
- and
- expanding the selected one expansion target luminance range by increasing the maximum luminance in the selected one expansion target luminance range having the low maximum luminance threshold.
2 more elements
A video processing method comprising:
- receiving video information representing video images and luminance-related information on luminance of the video images, the luminance-related information being formed of a plurality of types of luminance-related information;
- determining an expansion target luminance range of the video images for each of the types of luminance-related information based on the luminance-related information;
- selecting one expansion target luminance range out of the determined expansion target luminance ranges that has a high maximum luminance threshold;
- and
- expanding the selected one expansion target luminance range by increasing the maximum luminance in the selected one expansion target luminance range having the high maximum luminance threshold.
2 more elements
A video processing method comprising:
- receiving video information representing video images and luminance-related information on luminance of the video images, the luminance-related information being formed of a plurality of types of luminance-related information;
- and
- determining an expansion target luminance range of the video images based on the luminance-related information and expanding the expansion target luminance range in such a way that maximum luminance in the expansion target luminance range increases, wherein
- the plurality of types of luminance-related information include maximum luminance information representing maximum luminance of the video images, maximum average luminance information representing a maximum of average luminance values of frames that form the video images, and point-of-editing maximum luminance information representing maximum luminance of light from a display apparatus used when the video images are edited, and
- when at least one of the maximum luminance information and the maximum average luminance information is received, the expansion target luminance range is determined based on the received information,
- when neither the maximum luminance information nor the maximum average luminance information is received but the point-of-editing maximum luminance information is received, the expansion target luminance range is determined based on the point-of-editing maximum luminance information.
3 more elements
Dependencies are inferred from the claim text.