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1
US2021058543A1
LENS CONTROL APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM
Publication/Patent Number: US2021058543A1 Publication Date: 2021-02-25 Application Number: 16/993,042 Filing Date: 2020-08-13 Inventor: Hongu, Hideyasu   Yokozeki, Makoto   Ishii, Kazunori   Kato, Atsushi   Assignee: CANON KABUSHIKI KAISHA   IPC: H04N5/232 Abstract: An apparatus includes at least one processor programmed to perform operations of the following units: a focus detection unit configured to detect a defocus amount; and a control unit configured to control a focus lens to move based on the defocus amount, wherein the control unit includes three speed control patterns of acceleration control, constant speed control, and deceleration control, and the speed control patterns are changed based on at least two or more parameters.
2
EP3783415A1
LENS CONTROL APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM
Publication/Patent Number: EP3783415A1 Publication Date: 2021-02-24 Application Number: 20190311.9 Filing Date: 2020-08-10 Inventor: Hongu, Hideyasu   Yokozeki, Makoto   Ishii, Kazunori   Kato, Atsushi   Assignee: Canon Kabushiki Kaisha   IPC: G02B7/34 Abstract: The present invention realizes seamless rack-focusing for smoothly shifting a focus from one to another and a smooth autofocusing operation which makes a viewer feel comfortable, regardless of a result of focus detection in lens control in a period from the beginning to the end of autofocusing operation. A lens control apparatus includes: focus detection means configured to detect a defocus amount; and control means configured to control a focus lens to move based on the defocus amount, wherein the control means includes three speed control patterns of acceleration control, constant speed control, and deceleration control, and the speed control patterns are changed based on at least two or more parameters.
3
US10579864B2
Image processing apparatus, image processing method, and storage medium
Publication/Patent Number: US10579864B2 Publication Date: 2020-03-03 Application Number: 15/873,801 Filing Date: 2018-01-17 Inventor: Yokozeki, Makoto   Ishii, Kazunori   Assignee: Canon Kabushiki Kaisha   IPC: G06K9/00 Abstract: A face detection circuit of an image processing apparatus detects a face region from a video signal. An individual recognition circuit performs individual recognition processing based on a comparison of a similarity between feature information extracted from the face region and registered feature information with a predetermined threshold value. A camera microcomputer tracks a face recognized by the individual recognition circuit and stores information about the tracked face. Further, in a case where the recognized face is not tracked and recognition information about a first subject is not stored, the camera microcomputer sets a first threshold value as a predetermined threshold value for the first subject. On the other hand, in a case where the recognition information about the first subject region is stored, the camera microcomputer sets as the predetermined threshold value for the first subject a second threshold value which is lower than the first threshold value.
4
US10638049B2
Display control apparatus and imaging apparatus
Publication/Patent Number: US10638049B2 Publication Date: 2020-04-28 Application Number: 15/984,514 Filing Date: 2018-05-21 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: Canon Kabushiki Kaisha   IPC: H04N5/232 Abstract: A display control apparatus includes a focus detector configured to detect a focus state based on an image signal acquired from an imaging part, a main object detector configured to detect a main object among objects in an image based on the image signal output from the imaging part, and a display controller configured to display on a display unit an index representing the focus state detected by the focus detector on the main object detected by the main object detector in manual focusing. The display controller controls switching of the main object in the manual focusing.
5
EP3739269A1
AIRFLOW DIRECTION ADJUSTMENT DEVICE AND INDOOR UNIT FOR AIR CONDITIONER
Publication/Patent Number: EP3739269A1 Publication Date: 2020-11-18 Application Number: 20171115.7 Filing Date: 2020-04-23 Inventor: Yokozeki, Makoto   Gajina, Kenji   Hiugano, Kazuhiro   Assignee: Toshiba Carrier Corporation   IPC: F24F1/0007 Abstract: According to one embodiment, an airflow direction adjustment device (6) comprises a frame (61), a plurality of louver boards (62), a supporting member (63), and a movable member (64). The louver boards (62) comprise shaft portions (65, 67) provided at predetermined intervals in an extension direction. The supporting member (63) comprises bearing portions (68b) which rotatably support the shaft portions (65, 67) and whose diameter is greater than a shaft diameter of the shaft portions (65, 67). The supporting member (63) and the movable member (64) comprise a positioning mechanism (69) determining a position of the movable member (64) with respect to the supporting member (63) in a state where the shaft portions (65, 67) are supported in the bearing portions (68b).
6
JP2019168723A
FOCUS DETECTION DEVICE AND CONTROL METHOD THEREOF
Publication/Patent Number: JP2019168723A Publication Date: 2019-10-03 Application Number: 2019118806 Filing Date: 2019-06-26 Inventor: Yokozeki, Makoto   Assignee: CANON INC   IPC: H04N5/232 Abstract: To enable display of a focus state with respect to an appropriate image area according to the situation of a subject in a function displaying a focus state.SOLUTION: Second display indicating an index based on a focus state detected in a focus detection area is controlled so as to be superimposed on an image and displayed together with first display indicating an area corresponding to the focus detection area. If information on a predetermined subject has not been acquired, an area corresponding to the focus detection area is set in a predetermined area. If the information on the predetermined subject has been acquired, an area corresponding to the focus detection area is set based on the information on the predetermined subject. When operation is performed by a user, a position of an area corresponding to the focus detection area is changed according to the user's operation. The second display includes a first index and a second index, positions of which are changed according to a defocus amount, and a third index indicating a focused position.SELECTED DRAWING: Figure 5
7
US10516821B2
Focus detection apparatus and control method therefor
Publication/Patent Number: US10516821B2 Publication Date: 2019-12-24 Application Number: 16/376,559 Filing Date: 2019-04-05 Inventor: Yokozeki, Makoto   Hongu, Hideyasu   Assignee: Canon Kabushiki Kaisha   IPC: H04N5/232 Abstract: A focus detection apparatus includes an image pickup unit configured to perform photoelectric conversion on a luminous flux having passed through an imaging optical system, a focus detection unit configured to detect a focusing state based on a signal generated by the image pickup unit, a setting unit configured to set a first region within an image generated by the image pickup unit, a display controller configured to control such that an index representing the focusing state detected by the focus detection unit within the first region can be superimposed on the image, and an obtaining unit configured to obtain information regarding a predetermined subject in the image. In this case, the setting unit sets a position of the first region based on information regarding at least one of a position, a size, and a direction of the predetermined subject in the image.
8
US2019238745A1
FOCUS DETECTION APPARATUS AND CONTROL METHOD THEREFOR
Publication/Patent Number: US2019238745A1 Publication Date: 2019-08-01 Application Number: 16/376,559 Filing Date: 2019-04-05 Inventor: Hongu, Hideyasu   Yokozeki, Makoto   Assignee: CANON KABUSHIKI KAISHA   IPC: H04N5/232 Abstract: A focus detection apparatus includes an image pickup unit configured to perform photoelectric conversion on a luminous flux having passed through an imaging optical system, a focus detection unit configured to detect a focusing state based on a signal generated by the image pickup unit, a setting unit configured to set a first region within an image generated by the image pickup unit, a display controller configured to control such that an index representing the focusing state detected by the focus detection unit within the first region can be superimposed on the image, and an obtaining unit configured to obtain information regarding a predetermined subject in the image. In this case, the setting unit sets a position of the first region based on information regarding at least one of a position, a size, and a direction of the predetermined subject in the image.
9
JP6625093B2
DISPLAY CONTROL UNIT AND IMAGING APPARATUS
Publication/Patent Number: JP6625093B2 Publication Date: 2019-12-25 Application Number: 2017102497 Filing Date: 2017-05-24 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON INC   IPC: G03B13/32 Abstract: To provide a display control unit capable of reducing strangeness feeling and/or unpleasant feeling imposed on a photographer, while realizing a stable focus assist function when a manual focus adjustment is carried out, and to provide an imaging apparatus.SOLUTION: The display control unit comprises: focus detection means for detecting focus state on the basis of an image signal acquired from imaging means; main subject detection means for detecting a main subject from subjects included in a pick-up screen on the basis of an image signal output from the imaging means; and display control means configured so as to, when a manual focus adjustment is carried out, display an index which represents the focus state detected by the focus detection means with respect to the main subject detected by the main subject detection means on a display unit. The display control means is configured to control switching the main subject when the manual focus adjustment is carried out.SELECTED DRAWING: Figure 10
10
US10306131B2
Focus detection apparatus and control method therefor
Publication/Patent Number: US10306131B2 Publication Date: 2019-05-28 Application Number: 15/083,697 Filing Date: 2016-03-29 Inventor: Yokozeki, Makoto   Hongu, Hideyasu   Assignee: Canon Kabushiki Kaisha   IPC: H04N5/232 Abstract: A focus detection apparatus includes an image pickup unit configured to perform photoelectric conversion on a luminous flux having passed through an imaging optical system, a focus detection unit configured to detect a focusing state based on a signal generated by the image pickup unit, a setting unit configured to set a first region within an image generated by the image pickup unit, a display controller configured to control such that an index representing the focusing state detected by the focus detection unit within the first region can be superimposed on the image, and an obtaining unit configured to obtain information regarding a predetermined subject in the image. In this case, the setting unit sets a position of the first region based on information regarding at least one of a position, a size, and a direction of the predetermined subject in the image.
11
US2019289174A1
IMAGE CAPTURING SYSTEM, IMAGE CAPTURING APPARATUS, AND CONTROL METHOD OF THE SAME
Publication/Patent Number: US2019289174A1 Publication Date: 2019-09-19 Application Number: 16/352,999 Filing Date: 2019-03-14 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON KABUSHIKI KAISHA   IPC: H04N5/225 Abstract: An image capturing apparatus that is attachable to a robot arm, comprises an image capturing device configured to capture an object image, a receiving unit configured to receive information relating to status of the robot arm from a control apparatus for controlling the robot arm, and an imaging control unit configured to control an image capturing operation of the image capturing device that is performed on an object, wherein the imaging control unit controls the image capturing operation based on the information relating to status of the robot arm that was notified by the control apparatus.
12
JP2019161553A
IMAGING SYSTEM, IMAGING APPARATUS, CONTROL METHOD OF THEM, PROGRAM, AND STORAGE MEDIUM
Publication/Patent Number: JP2019161553A Publication Date: 2019-09-19 Application Number: 2018048397 Filing Date: 2018-03-15 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON INC   IPC: B25J19/04 Abstract: To shorten a time required for the control of a camera, even when a distance up to an object is in variety, in a system for controlling the camera attached to a robot.SOLUTION: An imaging system includes an imaging apparatus attached to a robot arm and a control device for controlling the robot arm and the imaging apparatus. The control device includes a notification part for notifying the imaging apparatus of the information of the state of the robot arm. The imaging apparatus includes an imaging part for capturing a subject image and an imaging control part for controlling the imaging operation of the imaging part with respect to a subject. The imaging control part executes the control of the imaging operation on the basis of the information of the state of the robot arm notified from the control device by the notification part.SELECTED DRAWING: Figure 3
13
US10165174B2
Control apparatus, image capturing apparatus, control method, and non-transitory computer-readable storage medium
Publication/Patent Number: US10165174B2 Publication Date: 2018-12-25 Application Number: 15/475,545 Filing Date: 2017-03-31 Inventor: Yokozeki, Makoto   Assignee: Canon Kabushiki Kaisha   IPC: H04N5/232 Abstract: A control apparatus includes a focus signal generator (112) which generates a focus signal by using a component of a predetermined frequency band of an image signal and a controller (114) which performs in-focus control based on the focus signal, the controller performs minute drive of reciprocating a focus lens in an optical axis direction in the in-focus control, and the controller changes each of a reciprocation period and the predetermined frequency band depending on a focus state or an image capturing condition in the minute drive.
14
JP2018117280A
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM
Publication/Patent Number: JP2018117280A Publication Date: 2018-07-26 Application Number: 2017007529 Filing Date: 2017-01-19 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON INC   IPC: G06T7/246 Abstract: PROBLEM TO BE SOLVED: To allow for faster recognition of subject region, such as face.SOLUTION: A face detector (113) detects face region from a video signal. An individual recognition unit (117) performs individual recognition processing, based on comparison of the similarity of feature information extracted from the face region and registered feature information, and a prescribed threshold level. A camera microcomputer (114) tracks a face recognized by the individual recognition unit (117), and holds the information of the tracked face. When not tracking the recognized face and not holding the information of the recognized face, the camera microcomputer (114) sets a first threshold level, and when holding the information of recognized subject region, sets a second threshold level lower than the first threshold level.SELECTED DRAWING: Figure 1
15
JP2018197806A
DISPLAY CONTROL UNIT AND IMAGING APPARATUS
Publication/Patent Number: JP2018197806A Publication Date: 2018-12-13 Application Number: 2017102497 Filing Date: 2017-05-24 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON INC   IPC: H04N5/232 Abstract: To provide a display control unit capable of reducing strangeness feeling and/or unpleasant feeling imposed on a photographer, while realizing a stable focus assist function when a manual focus adjustment is carried out, and to provide an imaging apparatus.SOLUTION: The display control unit comprises: focus detection means for detecting focus state on the basis of an image signal acquired from imaging means; main subject detection means for detecting a main subject from subjects included in a pick-up screen on the basis of an image signal output from the imaging means; and display control means configured so as to, when a manual focus adjustment is carried out, display an index which represents the focus state detected by the focus detection means with respect to the main subject detected by the main subject detection means on a display unit. The display control means is configured to control switching the main subject when the manual focus adjustment is carried out.SELECTED DRAWING: Figure 10
16
US2018343395A1
DISPLAY CONTROL APPARATUS AND IMAGING APPARATUS
Publication/Patent Number: US2018343395A1 Publication Date: 2018-11-29 Application Number: 15/984,514 Filing Date: 2018-05-21 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON KABUSHIKI KAISHA   IPC: H04N5/232 Abstract: A display control apparatus includes a focus detector configured to detect a focus state based on an image signal acquired from an imaging part, a main object detector configured to detect a main object among objects in an image based on the image signal output from the imaging part, and a display controller configured to display on a display unit an index representing the focus state detected by the focus detector on the main object detected by the main object detector in manual focusing. The display controller controls switching of the main object in the manual focusing.
17
DE102018101034A1
Bildverarbeitungsvorrichtung und Bildverarbeitungsverfahren
Title (English): Image processing equipment and image processing technology.
Publication/Patent Number: DE102018101034A1 Publication Date: 2018-07-19 Application Number: 102018101034 Filing Date: 2018-01-18 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: Canon Kabushiki Kaisha   IPC: G06K9/62 Abstract: Eine Gesichtserfassungsschaltung einer Bildverarbeitungsvorrichtung erfasst eine Gesichtsregion aus einem Videosignal. Eine Individuumerkennungsschaltung führt eine Individuumerkennungsverarbeitung beruhend auf einem Vergleich einer Ähnlichkeit zwischen aus der Gesichtsregion extrahierten Merkmalsinformationen und registrierten Merkmalsinformationen mit einem vorbestimmten Schwellenwert durch. Ein Kameramikrocomputer führt ein durch die Individuumerkennungsschaltung erkanntes Gesicht nach und speichert Informationen über das nachgeführte Gesicht. Wenn das erkannte Gesicht nicht nachgeführt wird und Erkennungsinformationen über ein erstes Subjekt nicht gespeichert sind, stellt der Kameramikrocomputer einen ersten Schwellenwert als vorbestimmten Schwellenwert für das erste Subjekt ein. Wenn die Erkennungsinformationen über die erste Subjektregion gespeichert sind, stellt der Kameramikrocomputer andererseits als den vorbestimmten Schwellenwert für das erste Subjekt einen zweiten Schwellenwert ein, der niedriger als der erste Schwellenwert ist.
18
US2018204053A1
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
Publication/Patent Number: US2018204053A1 Publication Date: 2018-07-19 Application Number: 15/873,801 Filing Date: 2018-01-17 Inventor: Ishii, Kazunori   Yokozeki, Makoto   Assignee: CANON KABUSHIKI KAISHA   IPC: G06K9/62 Abstract: A face detection circuit of an image processing apparatus detects a face region from a video signal. An individual recognition circuit performs individual recognition processing based on a comparison of a similarity between feature information extracted from the face region and registered feature information with a predetermined threshold value. A camera microcomputer tracks a face recognized by the individual recognition circuit and stores information about the tracked face. Further, in a case where the recognized face is not tracked and recognition information about a first subject is not stored, the camera microcomputer sets a first threshold value as a predetermined threshold value for the first subject. On the other hand, in a case where the recognition information about the first subject region is stored, the camera microcomputer sets as the predetermined threshold value for the first subject a second threshold value which is lower than the first threshold value.
19
US2017289437A1
CONTROL APPARATUS, IMAGE CAPTURING APPARATUS, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
Publication/Patent Number: US2017289437A1 Publication Date: 2017-10-05 Application Number: 15/475,545 Filing Date: 2017-03-31 Inventor: Yokozeki, Makoto   Assignee: CANON KABUSHIKI KAISHA   IPC: H04N5/232 Abstract: A control apparatus includes a focus signal generator (112) which generates a focus signal by using a component of a predetermined frequency band of an image signal and a controller (114) which performs in-focus control based on the focus signal, the controller performs minute drive of reciprocating a focus lens in an optical axis direction in the in-focus control, and the controller changes each of a reciprocation period and the predetermined frequency band depending on a focus state or an image capturing condition in the minute drive.
20
JP2017187564A
CONTROLLER
Publication/Patent Number: JP2017187564A Publication Date: 2017-10-12 Application Number: 2016074871 Filing Date: 2016-04-04 Inventor: Yokozeki, Makoto   Assignee: CANON INC   IPC: G02B7/36 Abstract: PROBLEM TO BE SOLVED: To provide a controller capable of controlling swift focusing.SOLUTION: The controller includes: a focus signal generation means (112) that generates a focus signal using a component of image signal of a predetermined frequency bandwidth; and control means (114) that controls the focusing based on the focus signal. When controlling the focusing
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