Image processing apparatus and image processing method

    公开(公告)号:US10110784B2

    公开(公告)日:2018-10-23

    申请号:US15120602

    申请日:2015-02-25

    Abstract: An image processing apparatus is provided which performs image processing of an input frame image. Contrast analyzer generates a histogram of the input frame image and calculates contrast based on the histogram. Motion-detecting threshold setter calculates a lower-limit threshold and an upper-limit threshold of a motion-detecting threshold by using an input-operated motion-detecting level and the calculated contrast. Motion detector determines that an observation pixel is moving considerably in a case where a finite difference value between frames is greater than the upper-limit threshold, and sets composite ratio K such that compositing of a preceding frame image is not performed. In a case where the finite difference value is smaller than the lower-limit threshold, the observation pixel is determined to be stationary, and composite ratio K is set such that compositing of the preceding frame image is performed at the maximum ratio.

    Image processing apparatus and image processing method

    公开(公告)号:US10321023B2

    公开(公告)日:2019-06-11

    申请号:US16135790

    申请日:2018-09-19

    Abstract: An image processing method is performed by a processor of an image processing apparatus which performs image processing of an input frame image. In the image processing method, a tonal histogram is generated, of which a gross area corresponds to a total number of pixels in the input frame image, and contrast is calculated from the tonal histogram. An input of a motion-detecting level with respect to the input frame image is received. A motion-detecting threshold corresponding to the motion-detecting level and the contrast is calculated. A composite image of the input frame image and a preceding frame image of the input frame image is generated based on a comparison result of a finite difference value between the input frame image and the preceding frame image, and the motion-detecting threshold.

    Image processing device and image processing method

    公开(公告)号:US10957047B2

    公开(公告)日:2021-03-23

    申请号:US16477724

    申请日:2017-11-08

    Abstract: An image processing device for synthesizing a plurality of mutually adjacent and partially overlapping pieces of image data, includes a boundary portion selection unit which, from boundary portions of adjacent image data, selects the boundary portion for calculating an image correction value, a correction value calculator which calculates the image correction value of the boundary portion selected by the boundary portion selection unit, and an image correction unit which, in the boundary portion selected by the boundary portion selection unit, performs image correction of the boundary portion using the image correction value calculated by the correction value calculator, and which, in the boundary portion that has not been selected by the boundary portion selection unit, performs image correction using the image correction value calculated in the past.

    Image processing apparatus and image processing method

    公开(公告)号:US11089216B2

    公开(公告)日:2021-08-10

    申请号:US16605689

    申请日:2017-12-26

    Inventor: Qinhe Wang

    Abstract: Disclosed is an image processing apparatus in which an image receiver receives a plurality of captured images, where image-captured ranges partially overlap, from an image-capturing device and stores the plurality of captured images in an input buffer, a composite region setter sets a composite region such that a portion projected in the vicinity of a polar point of a celestial sphere panoramic image is wider than a portion projected in the vicinity of an equator of the celestial sphere panoramic image, in an overlapping image-captured range of at least two captured images, an image composer performs composite processing on overlapping images in the composite region, connects the plurality of captured images, generates the celestial sphere panoramic image, and stores the generated image to an output buffer, and an image transmitter transmits the celestial sphere panoramic image to a display device.

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