-
1.发明申请公开(公告)号：US20180020151A1
公开(公告)日：2018-01-18
申请号：US15649542
申请日：2017-07-13
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA
CPC classification number: H04N5/23212 , G02B7/36 , G03B13/36 , H04N5/23219 , H04N5/23222
Abstract: A focus adjustment device includes a direction judgment unit and a control unit. A direction judgment unit calculates an evaluation value based on an image signal of a focus detection region, thereby judging a drive direction of a focus lens. The control unit controls a focus adjustment operation on the basis of the drive direction. The control unit causes the direction judgment unit to repeatedly judge the drive direction, and when the focus lens is slightly driven in a first direction judged on the basis of a first evaluation value and then the focus lens is slightly driven in a second direction judged on the basis of a subsequently calculated second evaluation value, the control unit forbids the slight driving of the focus lens in the first direction even though a drive direction judged on the basis of a further subsequently calculated third evaluation value is the first direction.
-
公开(公告)号：US20150015728A1
公开(公告)日：2015-01-15
申请号：US14326254
申请日：2014-07-08
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA
IPC: H04N5/232
CPC classification number: H04N5/23212 , H04N5/23296
Abstract: A focus adjusting process and apparatus are described which can optimize a balance between AF performance and appearance of moving image, regardless of a position or size of an enlarged area to be recorded in a moving image.
Abstract translation: 描述了可以优化AF性能和运动图像的外观之间的平衡的聚焦调整处理和装置，而不管要记录在运动图像中的放大区域的位置或大小。
-
公开(公告)号：US20200045237A1
公开(公告)日：2020-02-06
申请号：US16509316
申请日：2019-07-11
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA
IPC: H04N5/232
Abstract: A focus control device, comprising an image sensor capable of generating a phase difference detection signal, a focus detection region setting circuit that sets a plurality of focus detection regions having at least some parts in common, in a region of the image sensor that receives the light flux, an AF control circuit comprising a first calculation section that calculates a first focus direction based on a phase difference detection signal from a first focus detection region, and a second calculation section that is capable of detecting a larger focus deviation amount than a focus deviation amount that can be detected by the first calculation section, and calculates a second focus direction based on a phase difference detection signal from a second focus detection region, and a controller that determines focus direction in which to perform focus adjustment based on the first focus direction and the second focus direction.
-
Patent Agency Ranking
公开(公告)号：US20180041690A1
公开(公告)日：2018-02-08
申请号：US15726362
申请日：2017-10-05
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA
CPC classification number: H04N5/23212 , G02B7/28 , G02B7/36 , G03B13/36 , H04N5/232
Abstract: A focus adjustment device includes a focus detection region setting section, a direction determination section and control section. The focus detection region setting section sets focus detection regions which are different in size from one another. The direction determination section determines a movement direction of a focus lens to be in focus based on a change of the contrast caused by the movement of the focus lens. The control section repetitively determines whether determination results of the movement direction obtained in the respective focus detection regions are different. The control section inhibits a switchover of a focus adjustment operation when it is consecutively determined a predetermined number of times or more that the determination results of the movement direction are different, otherwise the control section does not inhibit the switchover.
-
公开(公告)号：US20200236292A1
公开(公告)日：2020-07-23
申请号：US16737867
申请日：2020-01-08
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA
Abstract: A focus control device that has an image sensor that receives light flux that has passed through a photographing lens and is capable of generating a phase difference detection signal, and that executes focus adjustment based on the phase difference detection signal, the focus control device comprising a focus detection circuit that detects ranging data representing defocus amount based on phase difference detection signals of a plurality of focus detection regions that have been set in a region of the image sensor where the light flux is received, and a processor that, with ranging data corresponding to a plurality of focus detection regions being arranged in order of short distance, performs focus adjustment based on ranging data remaining after excluding ranging data in a specified range from ranging data representing a closest range.
-
6.发明申请公开(公告)号：US20190273860A1
公开(公告)日：2019-09-05
申请号：US16416112
申请日：2019-05-17
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA
IPC: H04N5/232
Abstract: An imaging device includes an image sensor and a controller. The controller sets a focus detection area and a motion detection area, determines an instability of a subject for a motion based on an imaging signal corresponding to an inside of the motion detection area, determines a degree of focusing based on the imaging signal corresponding to an inside of the focus detection area. The controller makes an operation parameter of a focus adjustment operation different, when the subject is determined to be unstable once and then determined to be stable. The controller determines the degree of focusing by a focus adjustment operation using minute driving. The operation parameter is an amplitude or an amount of a movement of the focus lens.
-
公开(公告)号：US20170257556A1
公开(公告)日：2017-09-07
申请号：US15407115
申请日：2017-01-16
Applicant: OLYMPUS CORPORATION
Inventor： Shingo MIYAZAWA , Makoto IKEDA
CPC classification number: H04N5/23212 , G02B7/09 , G02B7/28 , G02B7/34 , G02B7/36 , G02B7/38 , H04N5/2353
Abstract: A direction judgment unit calculates a first evaluation value based on an image signal of a first focus detection region among focus detection regions to judge a drive direction of a focus lens to be in focus and calculates a second evaluation value based on an image signal of at least one second focus detection region smaller than the first region, the focus detection regions being at least partly the same and being different in size. A control unit determines whether a change of the second evaluation value is a monotonous change when the focus lens is slightly driven a first number of times in a first direction judged on the basis of the first evaluation value and the focus lens is slightly driven a second number of times smaller than the first number of times in a second direction opposite to the first direction, and the control unit performs focus adjustment on the basis of the second evaluation value when the change of the second evaluation value is not a monotonous change.
-
公开(公告)号：US20160234423A1
公开(公告)日：2016-08-11
申请号：US15007388
申请日：2016-01-27
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA , Makoto IKEDA
CPC classification number: H04N5/23212 , H04N5/232 , H04N5/23261 , H04N5/2351
Abstract: A focus adjustment device for carrying out focus adjustment by moving a focus lens, comprises a point light source determination section which determines a point-like light source subject based on the image signals, an orientation stability determination section which determines stability of orientation by detecting orientation of the focus adjustment device, a photometry section which outputs photometric values corresponding to subject brightness based on the image signals, and a focus adjustment section which carries out a focus adjustment operation using the image signals, based on a determination result of the point light source determination section, wherein the point light source determination section, in a state where a point-like light source subject is currently determined, when a determination result of the orientation stability determination section indicates unstable and a photometric value output from the photometry section does not indicate low brightness, determines that the subject is not a point-like light source.
Abstract translation: 用于通过移动聚焦透镜进行聚焦调节的聚焦调节装置包括：基于图像信号确定点状光源被摄体的点光源确定部分，通过检测方向来确定取向的稳定性的方向稳定性确定部分 焦距调节装置，基于图像信号输出与被摄体亮度相对应的测光值的测光部，以及基于点光源的判定结果进行使用图像信号的聚焦调整动作的焦点调整部 确定部分，其中当定向稳定性确定部分的确定结果指示不稳定并且从测光部分输出的光度值不指示时，点光源确定部分处于当前确定点状光源对象的状态 低亮度，确定 该主题不是点状光源。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.018 seconds)
