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US 10,096,092 B2Granted
Image processing system and computer-readable recording medium
AssigneeEIZO Corporation
InventorsTakashi Nakamae, Masafumi Higashi, Reo Aoki
Life of this patent
Estimating the term…
Abstract
A technique to remove fog from an image more appropriately has been called for. An image processing system is provided, including: a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image; a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame; and a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit.
Claims10
An image processing system comprising:
- a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image;
- a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame;
- and
- a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit, wherein
- using a haze depth estimate value of the one frame as a haze depth target value of the one frame, the parameter adjusting unit adjusts a parameter to be used in a haze removal process of the one frame such that the parameter to be used in the haze removal process of the one frame becomes closer to, in a stepwise manner, the haze depth target value, from a parameter adjusted in a haze removal process of the past frame.
2 more elements
An image processing system comprising:
- a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image;
- a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame;
- a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit;
- a haze reliability estimating unit that estimates a reliability of the haze depth estimate value;
- a target value acquiring unit that acquires a haze depth target value of the past frame;
- a target value determining unit that determines, as a haze depth target value of the one frame, either the haze depth target value of the past frame acquired by the target value acquiring unit or a haze depth estimate value of the one frame derived by the haze depth estimating unit;
- and
- a difference absolute value deriving unit that derives a difference absolute value between a haze depth target value of the one frame determined by the target value determining unit and a parameter used in a haze removal process of a past frame of the one frame, wherein
- the parameter adjusting unit adjust a parameter to be used in a haze removal process of the one frame with an adjustment amount corresponding to:
- the reliability;
- the difference absolute value;
- and whether or not the one frame is a frame in which a scene change occurs, such that a parameter used in a haze removal process of the past frame becomes close to, stepwise, a haze depth target value of the one frame determined by the target value determining unit.
9 more elements
An image processing system comprising:
- a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image;
- a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame;
- a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit;
- a haze reliability estimating unit that estimates a reliability of the haze depth estimate value;
- a target value acquiring unit that acquires a haze depth target value of the past frame;
- and
- a target value determining unit that, based on the reliability estimated by the haze reliability estimating unit, determines which one, the haze depth target value of the past frame acquired by the target value acquiring unit or a haze depth estimate value of the one frame derived by the haze depth estimating unit, is to be used for adjusting a parameter to be used in a haze removal process of the one frame.
4 more elements
A non-transitory computer-readable recording medium having recorded thereon a program for allowing a computer to function as:
- a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image;
- a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame;
- and
- a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit, wherein
- using a haze depth estimate value of the one frame as a haze depth target value of the one frame, the parameter adjusting unit adjusts a parameter to be used in a haze removal process of the one frame such that the parameter to be used in the haze removal process of the one frame becomes closer to, in a stepwise manner, the haze depth target value, from a parameter adjusted in a haze removal process of the past frame.
2 more elements
A non-transitory computer-readable recording medium having recorded thereon a program for allowing a computer to function as:
- a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image;
- a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame;
- a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit;
- a haze reliability estimating unit that estimates a reliability of the haze depth estimate value;
- a target value acquiring unit that acquires a haze depth target value of the past frame;
- a target value determining unit that determines, as a haze depth target value of the one frame, either the haze depth target value of the past frame acquired by the target value acquiring unit or a haze depth estimate value of the one frame derived by the haze depth estimating unit;
- and
- a difference absolute value deriving unit that derives a difference absolute value between a haze depth target value of the one frame determined by the target value determining unit and a parameter used in a haze removal process of a past frame of the one frame, wherein
- the parameter adjusting unit adjusts a parameter to be used in a haze removal process of the one frame with an adjustment amount corresponding to:
- the reliability;
- the difference absolute value;
- and whether or not the one frame is a frame in which a scene change occurs, such that a parameter used in a haze removal process of the past frame becomes close to, stepwise, a haze depth target value of the one frame determined by the target value determining unit.
9 more elements
A non-transitory computer-readable recording medium having recorded thereon a program for allowing a computer to function as:
- a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image;
- a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame;
- a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit;
- a haze reliability estimating unit that estimates a reliability of the haze depth estimate value;
- a target value acquiring unit that acquires a haze depth target value of the past frame;
- and
- a target value determining unit that, based on the reliability estimated by the haze reliability estimating unit, determines which one, the haze depth target value of the past frame acquired by the target value acquiring unit or a haze depth estimate value of the one frame derived by the haze depth estimating unit, is to be used for adjusting a parameter to be used in a haze removal process of the one frame.
4 more elements
Dependencies are inferred from the claim text.