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1. 发明申请

US20230077931A1 IMAGE PROCESSING APPARATUS, IMAGE CAPTURING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM 有权
公开(公告)号：US20230077931A1
公开(公告)日：2023-03-16
申请号：US17940076
申请日：2022-09-08
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa , Kota Terayama
IPC分类号： H04N5/235 , G03F7/20
摘要： An image processing apparatus that composites a plurality of images that have been captured with different exposure amounts, the image processing apparatus comprising at least one processor and/or circuit configured to function as following units: a specification unit configured to specify a signal value indicating an upper limit value of an output dynamic range with respect to at least one of the plurality of images; and a decision unit configured to decide on composition percentages of the plurality of images based on the signal value specified by the specification unit.

2. 发明授权

US10992854B2 Image processing apparatus, imaging apparatus, image processing method, and storage medium 有权
公开(公告)号：US10992854B2
公开(公告)日：2021-04-27
申请号：US16173061
申请日：2018-10-29
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： H04N5/232 , H04N5/235 , H04N5/357 , H04N9/04 , G06T7/13 , G06T7/32 , G06T5/50 , G02B27/00
摘要： An image processing method includes correcting a magnification in a plurality of images captured at a plurality of different focus positions, aligning the plurality of images having the corrected magnification, correcting a color blur in the plurality of aligned images, and combining the plurality of images having the corrected color blur.

3. 发明授权

US10194091B2 Image capturing apparatus, control method therefor, program, and recording medium 有权
公开(公告)号：US10194091B2
公开(公告)日：2019-01-29
申请号：US15372186
申请日：2016-12-07
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： H04N5/235 , G06K9/46 , G06K9/62 , G06T5/00 , H04N5/265 , G06T5/50
摘要： An image capturing apparatus capable of high dynamic range shooting for compositing a plurality of images captured with different exposures in temporarily continuous frames includes: an image capturing unit configured to repeatedly capture a relatively-low-exposure image and a relatively-high-exposure image in temporarily continuous frames; an image generation unit configured to generate a first image obtained by correcting the low-exposure image on a basis of reference exposure and a second image obtained by correcting the high-exposure image on a basis of the reference exposure; a calculation unit configured to calculate reference exposure, which is used for performing image capturing of a subsequent frame, on a basis of the first image and the second image; and a correction unit configured to correct exposure conditions, under which a relatively-low-exposure image and a relatively-high-exposure image in a subsequent frame are captured, on a basis of the reference exposure calculated by the calculation unit.

4. 发明申请

US20190132528A1 IMAGE PROCESSING APPARATUS, IMAGING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20190132528A1
公开(公告)日：2019-05-02
申请号：US16173061
申请日：2018-10-29
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： H04N5/232 , G02B27/00 , H04N5/357 , G06T7/13
摘要： An image processing method includes correcting a magnification in a plurality of images captured at a plurality of different focus positions, aligning the plurality of images having the corrected magnification, correcting a color blur in the plurality of aligned images, and combining the plurality of images having the corrected color blur.

5. 发明申请

US20190108626A1 IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20190108626A1
公开(公告)日：2019-04-11
申请号：US16152626
申请日：2018-10-05
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： G06T5/00 , H04N5/235 , H04N9/73 , H04N9/77 , H04N9/04 , H04N9/69
摘要： An image processing apparatus operable to perform development processing by performing at least a tone conversion on RAW image data that is inputted image data, the image processing apparatus comprising: a setting unit configured to set a first tone conversion curve corresponding to a dynamic range of the image data; an adjusting unit configured to generate a second tone conversion curve by adjusting the first tone conversion curve so that luminance changes of a bright portion and a dark portion of the image data are visually equivalent; and a tone conversion unit configured to perform a tone conversion of the image data by using the second tone conversion curve.

6. 发明授权

US09646397B2 Image processing apparatus and image processing method 有权
公开(公告)号：US09646397B2
公开(公告)日：2017-05-09
申请号：US13981284
申请日：2013-03-19
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa , Yuka Minegishi
IPC分类号： G06K9/00 , G06T11/60 , H04N5/232 , H04N5/235 , G06T5/50 , G06T3/00
CPC分类号： G06T11/60 , G06K9/00624 , G06T3/00 , G06T5/50 , G06T2200/21 , G06T2207/10016 , G06T2207/20208 , G06T2207/20221 , G06T2207/30196 , H04N5/23232 , H04N5/2355 , H04N5/2356
摘要： An image processing apparatus which composes a plurality of images captured while changing an exposure amount, includes a displacement detection unit which detects a displacement amount between the plurality of images, a correction unit which corrects a displacement between the images based on the displacement amount detected by the displacement detection unit, a moving object region detection unit which detects a moving object region from the plurality of images for which the displacement has been corrected, an image composition unit which composes the plurality of images for which the displacement has been corrected, and a moving object processing unit which replaces a region corresponding to the moving object region of the composite image composed by the image composition unit by an image obtained by performing weighted addition of the plurality of images.

7. 发明授权

US09357138B2 Image capture apparatus, method of controlling image capture apparatus, and electronic device 有权
标题翻译：图像捕获装置，图像捕获装置的控制方法和电子装置
公开(公告)号：US09357138B2
公开(公告)日：2016-05-31
申请号：US13943594
申请日：2013-07-16
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： H04N5/235
CPC分类号： H04N5/2355 , H04N5/2352 , H04N5/2356
摘要： An image capture apparatus is provided that is capable of accurately determining exposure conditions of multiple images to be used in high dynamic range compositing in a short duration, based on a captured image. A scene dynamic range is computed based on luminance information obtained from an image captured with a standard exposure according to a luminance zone to be prioritized in high dynamic range shooting and luminance information obtained from an image captured with an over-exposure or an under-exposure relative to the standard exposure. An exposure range of multiple images for creating a high dynamic range image is determined according to the computed dynamic range.
摘要翻译：提供了一种能够基于捕获的图像在短时间内精确地确定要用于高动态范围合成中的多个图像的曝光条件的图像拍摄装置。基于根据在高动态范围拍摄中被优先排列的亮度区域的以标准曝光拍摄的图像获得的亮度信息来计算场景动态范围，以及从用过曝光或曝光不足所拍摄的图像获得的亮度信息相对于标准曝光。根据计算的动态范围确定用于创建高动态范围图像的多个图像的曝光范围。

8. 发明授权

US09177396B2 Image processing apparatus and image processing method 有权
标题翻译：图像处理装置和图像处理方法
公开(公告)号：US09177396B2
公开(公告)日：2015-11-03
申请号：US13909434
申请日：2013-06-04
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： G06K9/00 , G06T11/00 , H04N1/40 , H04N1/60
CPC分类号： G06T11/001 , H04N1/40093 , H04N1/6027
摘要： An image processing apparatus uses an edge component of an input image in which a little low-frequency component of a dark part is retained as a luminance signal, synthesizes a large blurring component generated from the input image as a color component, and realizes a taste of natural watercolor paintings in which gradation is not inverted from a bright part to the dark part when a color is placed on a rough line drawing in watercolor-like processing.
摘要翻译：图像处理装置使用其中保留有暗部分的少量低频分量的输入图像的边缘分量作为亮度信号，将从输入图像生成的大模糊分量合成为颜色分量，并实现品味自然水彩画中，当将颜色放置在水彩般的处理中的粗线上时，渐变不会从明亮部分向黑暗部分反转。

9. 发明授权

US10600165B2 Image processing apparatus capable of performing tone conversion with a visually equivalent luminance change, image processing method, and storage medium 有权
公开(公告)号：US10600165B2
公开(公告)日：2020-03-24
申请号：US16152626
申请日：2018-10-05
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： G06T5/00 , H04N5/235 , H04N9/73 , H04N9/04 , H04N9/69 , H04N9/77 , H04N5/232
摘要： An image processing apparatus operable to perform development processing by performing at least a tone conversion on RAW image data that is inputted image data, the image processing apparatus comprising: a setting unit configured to set a first tone conversion curve corresponding to a dynamic range of the image data; an adjusting unit configured to generate a second tone conversion curve by adjusting the first tone conversion curve so that luminance changes of a bright portion and a dark portion of the image data are visually equivalent; and a tone conversion unit configured to perform a tone conversion of the image data by using the second tone conversion curve.

10. 发明申请

US20170171446A1 IMAGE CAPTURING APPARATUS, CONTROL METHOD THEREFOR, PROGRAM, AND RECORDING MEDIUM 审中-公开
公开(公告)号：US20170171446A1
公开(公告)日：2017-06-15
申请号：US15372186
申请日：2016-12-07
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroaki Nashizawa
IPC分类号： H04N5/235 , G06T5/00 , G06K9/62 , H04N5/265 , G06K9/46
CPC分类号： H04N5/2352 , G06K9/4661 , G06K9/6215 , G06T5/007 , G06T5/50 , G06T2207/20208 , G06T2207/20221 , H04N5/23209 , H04N5/23212 , H04N5/23245 , H04N5/2351 , H04N5/2355 , H04N5/2356 , H04N5/265 , H04N5/35581
摘要： An image capturing apparatus capable of high dynamic range shooting for compositing a plurality of images captured with different exposures in temporarily continuous frames includes: an image capturing unit configured to repeatedly capture a relatively-low-exposure image and a relatively-high-exposure image in temporarily continuous frames; an image generation unit configured to generate a first image obtained by correcting the low-exposure image on a basis of reference exposure and a second image obtained by correcting the high-exposure image on a basis of the reference exposure; a calculation unit configured to calculate reference exposure, which is used for performing image capturing of a subsequent frame, on a basis of the first image and the second image; and a correction unit configured to correct exposure conditions, under which a relatively-low-exposure image and a relatively-high-exposure image in a subsequent frame are captured, on a basis of the reference exposure calculated by the calculation unit.

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