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1.发明申请公开(公告)号：US20210366324A1
公开(公告)日：2021-11-25
申请号：US17323996
申请日：2021-05-18
Inventor： Ken Mashitani , Junji Masumoto , Takaaki Abe , Akio Yamanaka
IPC: G09G3/00
Abstract: A content generation method generates image content to be projected at a projection position in a real space by a projector. In a first acquisition process, space information regarding a virtual space corresponding to the real space is acquired. In a second acquisition process, display position information regarding a display position corresponding to the projection position in the virtual space is acquired. In a third acquisition process, reference position information regarding a reference position in the virtual space is acquired. In a generation process, an image including an object viewed from the reference position when the object is displayed at the display position in the virtual space is generated as the image content, based on the space information, the reference position information, and the display position information.
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公开(公告)号：US10353660B2
公开(公告)日：2019-07-16
申请号：US15701922
申请日：2017-09-12
Inventor： Ryoji Okubo , Ken Mashitani , Masaru Sekizawa , Takaaki Abe , Kazuma Tani
Abstract: Image display system 10 comprises: a plurality of display devices 111; an image processing unit for receiving input of a plurality of input video signals and generating an output video signal for each display device in accordance with a layout for the display devices from the input video signals; a pattern signal generation unit for generating pattern signals indicating a plurality of different test pattern images; a selector for receiving input of the output video signals and the pattern signals and selecting and outputting either the output video signals or the pattern signals; imaging device 120 for capturing an image of the test pattern images displayed on the respective display devices; and a control device 140 for analyzing the captured image captured by the imaging device and generating control information for controlling the image processing unit, based on analysis results.
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公开(公告)号：US10817975B2
公开(公告)日：2020-10-27
申请号：US16200841
申请日：2018-11-27
Inventor： Ken Mashitani , Ryuji Fuchikami
Abstract: An image display device includes an image input unit into which an image signal from an image signal source is input; a memory; a writing unit that writes at a first frequency an image signal input into the image input unit into the memory; a reading unit that reads at a second frequency higher than the first frequency an image signal written in the memory; an image output unit that outputs an image signal read by the reading unit to a display unit; and an image interpolation unit that interpolates an image to be output to the display unit.
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公开(公告)号：US10274739B2
公开(公告)日：2019-04-30
申请号：US16008411
申请日：2018-06-14
Inventor： Ken Mashitani
IPC: G02B27/22 , G02B17/06 , H04N13/302 , H04N13/363
Abstract: The three-dimensional image display apparatus includes the following structural elements: an optical system including a concave mirror, and a light transmitting section provided to the concave mirror at a boundary between a first space and a second space, the optical system forming a real image in the second space, with an aid of the concave mirror, of an object disposed in the first space available on the concave mirror; and an image output device disposed at a place so as not to substantially block an optical path of light rays forming the real image of the object.
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公开(公告)号：US11599014B2
公开(公告)日：2023-03-07
申请号：US17197743
申请日：2021-03-10
Inventor： Takaaki Abe , Ken Mashitani , Junji Masumoto
Abstract: A projection direction change device includes a mirror that reflects light emitted from a projection lens unit of a projector, a mirror support part that rotatably supports the mirror around a first axis and a second axis, a first drive part that rotary drives the mirror around the first axis, and a second drive part that rotary drives the mirror around the second axis. An intersecting point of the first and second axes is positioned closer to the projection lens unit than a geometric barycenter of the mirror is.
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Patent Agency Ranking
公开(公告)号：US10158848B2
公开(公告)日：2018-12-18
申请号：US15284062
申请日：2016-10-03
Inventor： Ken Mashitani , Takaaki Abe , Tamotsu Akeyama
IPC: H04N13/363 , H04N13/339 , H04N13/354 , H04N13/359 , H04N13/398 , G03B21/14 , G03B35/16 , H04N9/31 , H04N13/341
Abstract: A projection video display that projects video image suppresses deterioration of its quality which is attributed to a change in an optical path of the video image. A video signal generator performs control such that a second subframe in an N-th frame in a left-eye image is displayed on DMDs and then a second subframe in an N-th frame in a right-eye image is displayed on the DMDs. Furthermore, the video signal generator performs control such that a displayed location is not changed on a screen and the same types of subframes are displayed at the time when frames are switched.
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公开(公告)号：US12185031B2
公开(公告)日：2024-12-31
申请号：US18132559
申请日：2023-04-10
Inventor： Ken Mashitani , Takaaki Abe
Abstract: A projector in an installation information acquisition method is installed in a real space, has a changeable projection direction, and projects a projection image based on a virtual image. The virtual image is an image in a case where an image arranged at a display position in a virtual space is viewed from a virtual installation position. The method includes first acquisition processing for acquiring positional information of three or more first adjustment points in the virtual space, projection processing for projecting, by the projector, an index image onto the real space, second acquisition processing for acquiring angle information of the projection direction with respect to a reference direction in a state where the index image matches three or more second adjustment points respectively corresponding to the three or more first adjustment points, and third acquisition processing for acquiring installation information based on the positional information and the angle information.
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公开(公告)号：US11438563B2
公开(公告)日：2022-09-06
申请号：US17055763
申请日：2019-05-15
Inventor： Ryuji Fuchikami , Ken Mashitani
Abstract: A non-transitory computer-readable storage medium stores a projection adjustment program which, when executed by a processor, causes a computer to execute a process relating to adjustment of projection operations of projection devices configured to perform position measurement and projection on a target object in a projection system including the projection devices. The process includes: causing a first projection device to project invisible measurement light onto the target object; causing a second projection device to receive reflection light reflected from the target object; judging a connection relationship of a projection range of the first projection device on the basis of the received reflection light; executing a process of the judging of the connection relationship on all processing target projection devices; and generating projection position information indicating a connection relationship between projection ranges of the respective projection devices and displaying the projection position information on a display unit.
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公开(公告)号：US10776898B2
公开(公告)日：2020-09-15
申请号：US16373998
申请日：2019-04-03
Inventor： Asuka Aoki , Ken Mashitani
Abstract: A projection system includes a visible light projector, a camera and an image processor. The visible light projector projects an image with visible light onto the object. The camera captures an image of the object and has an optical axis not coinciding with an optical axis of the visible light projector. The image processor generates an image to be projected with visible light onto the object based on the image captured by the camera. The image processor includes a corrector and an image generator. The corrector corrects a deviation between a projection image and the object. The corrector is configured to calculate a projection region on the object onto which an image is projected by the visible light projector. The image generator is configured to generate image data to project the image to be projected onto the object onto the projection region.
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公开(公告)号：US09986226B2
公开(公告)日：2018-05-29
申请号：US14786739
申请日：2014-10-17
Inventor： Tatsumi Watanabe , Ken Mashitani
CPC classification number: H04N13/305 , G02B27/2214 , G03B35/24 , H04N13/128 , H04N13/225 , H04N13/31 , H04N13/324 , H04N13/373 , H04N13/383
Abstract: A video display method using a display apparatus for displaying a glasses free 3D video, the display apparatus including a display unit in which sub-pixels constituting pixels are arranged in a matrix, the video display method including: (a) displaying, in a row of sub-pixels of the display unit, a video in which a left-eye video and a right-eye video are disposed alternately in units of display each unit made up of n sub-pixels, where n is an integer equal to or greater than 2; and (b) detecting a distance from the display unit to a viewer, wherein in step (a), if the detected distance is different from a predetermined distance, the number of sub-pixels of at least one unit of display, among a plurality of units of display included in the row of sub-pixels, is varied as a function of the detected distance.
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