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    • 4. 发明申请
    • GENERATING SYNTHETIC VIDEO FRAMES USING OPTICAL FLOW
    • 使用光学流量生成合成视频框架
    • US20160301848A1
    • 2016-10-13
    • US14683638
    • 2015-04-10
    • Apple Inc.
    • Angus M. TaggartEric S. Beale
    • H04N5/235G06T5/40
    • G06T5/40G06T3/40H04N7/0127H04N7/0135
    • A novel video system that detects events in a video sequence that causes such distortions and switch off optical flow based frame interpolation is provided. The system detects sudden changes in light intensity and switch to non-optical flow based frame interpolation when such sudden change is detected. When there is no such drastic change in light intensity, the system reverts back to using optical flow frame interpolation. Specifically, the system detects a flash event by computing a sum of differences in histograms of intensity levels between the pair of consecutive actual video frames. When the sum of differences is above a certain threshold, the video system switch to non-optical flow based frame interpolation. When the sum of differences is below the threshold, the video system reverts back to optical flow frame interpolation.
    • 提供了一种新颖的视频系统,其检测导致这种失真并关闭基于光流的帧插值的视频序列中的事件。 当检测到这种突然变化时,系统检测到光强度的突然变化并切换到基于非光流的帧插值。 当光强没有如此剧烈的变化时,系统恢复到使用光流帧插值。 具体地,系统通过计算一对连续实际视频帧之间的强度级别的直方图的差异之和来检测闪光事件。 当差值之和高于某个阈值时,视频系统切换到基于非光流的帧插值。 当差值之和低于阈值时,视频系统恢复为光流帧插值。
    • 5. 发明申请
    • IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20160205342A1
    • 2016-07-14
    • US14912451
    • 2014-08-20
    • KEISOKU GIKEN CO., LTD.
    • Seiichi GOHSHIJin OGASAWARAShinichiro NAKAMURA
    • H04N7/01H04N7/015H04N5/21G06T5/00G06T5/20
    • H04N7/0122G06T5/003G06T5/20H04N5/21H04N7/0117H04N7/0135H04N7/015
    • For sharpening an input image by up-converting the input image in order to increase the number of pixels of an image and generating a frequency component higher than a frequency component contained in an input image signal representing the input image, the number of multipliers is reduced, thereby achieving significant downsizing of an apparatus and cost reduction. An image processing apparatus includes a path on a base image side for up-converting the input image signal and a path on a sharpening processing side for carrying out nonlinear arithmetic processing on the input image signal. The path on the sharpening processing side includes an up-converter at a subsequent stage of at least one filter, after which the nonlinear arithmetic processing is carried out. The at least one filter may be either a two-dimensional low pass filter for noise removal or a high pass filter for removing a DC component.
    • 为了通过对输入图像进行上变频来锐化输入图像,以便增加图像的像素数量并产生高于包含在表示输入图像的输入图像信号中的频率分量的频率分量,乘法器数量减少 ,从而实现装置的显着的小型化和降低成本。 一种图像处理装置包括:基本图像侧的路径,用于对输入图像信号进行上变频;以及在锐化处理侧上的路径,用于对输入图像信号进行非线性运算处理。 锐化处理侧的路径在至少一个滤波器的后续阶段包括上变频器,之后执行非线性运算处理。 至少一个滤波器可以是用于噪声去除的二维低通滤波器或用于去除DC分量的高通滤波器。