Image projection system, image projection device, and image projection method

    公开(公告)号:US10750142B2

    公开(公告)日:2020-08-18

    申请号:US16468638

    申请日:2017-09-22

    Abstract: In an image projection system, a computing device generates conversion information for converting camera coordinates used by an imaging device and projector coordinates used by an image projection device based on a positional relationship between a projection pattern image and an imaging pattern image, the imaging device images a subject including a person, the computing device detects a first position indicating a position related to the camera coordinates in a specific region in the person, the computing device converts information on the first position into information on a second position indicating a position related to the projector coordinates in the specific region based on the conversion information, and the image projection device projects a warning image for overlapping with an entire region of the specific region based on the information on the second position.

    Video image enhancement method
    5.
    发明授权

    公开(公告)号:US10475166B2

    公开(公告)日:2019-11-12

    申请号:US15580963

    申请日:2016-05-10

    Abstract: There is provided is a method for enhancing a video image capable of achieving high image quality improvement for both a texture area and an edge area. A maximum limit value and a minimum limit value of a video signal value enhanced on the basis of a pixel signal value in an area set around the target pixel are calculated, the maximum limit value and the minimum limit value are corrected according to a texture value calculated as a scale value that indicates a variation of the pixel signal value in the corresponding area, and the corrected maximum limit value and minimum limit value are applied to the enhanced video signal value.

    Image projection system and image projection method

    公开(公告)号:US09832436B1

    公开(公告)日:2017-11-28

    申请号:US15581735

    申请日:2017-04-28

    CPC classification number: H04N9/3179 G06T7/60 H04N9/3164 H04N9/3185 H04N9/3194

    Abstract: An image projection system includes an infrared ray projection apparatus that projects a pattern image for shape measurement toward a projection target, an imaging device that captures the pattern image, a calculation device that acquires three-dimensional shape information of the projection target based on the captured pattern image and converts a content image into a projection content image corresponding to the projection target based on the three-dimensional shape information, and a visible light projection apparatus that is disposed in a different position from the infrared ray projection apparatus and projects the projection content image toward the projection target, in which the calculation device, based on images of a visible light image projected by the visible light projection apparatus and a non-visible light image projected by the infrared ray projection apparatus, executes processing of associating each pixel of the non-visible light image with each pixel of the visible light image.

    Projection control device, projection control method and projection control system

    公开(公告)号:US11606541B2

    公开(公告)日:2023-03-14

    申请号:US17266732

    申请日:2019-08-07

    Abstract: A projection control device includes: a communication unit connected to communicate with an image capturing device configured to capture an image of a target object positioned around a projected object; a derivation unit configured to derive a projection position of a content image based on designation of a parameter related to the content image to be projected onto the projected object and an image of the projected object including the target object; a projection image generation unit configured to generate a projection image including the content image disposed at the derived projection position; and a control unit configured to transmit a projection instruction of the projection image to a projection device via the communication unit.

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