Tone display method and apparatus for displaying image signal
    1.
    发明授权
    Tone display method and apparatus for displaying image signal 失效
    用于显示图像信号的色调显示方法和装置

    公开(公告)号:US06333766B1

    公开(公告)日:2001-12-25

    申请号:US09634734

    申请日:2000-08-08

    IPC分类号: H04N557

    摘要: A tone display method for displaying a tone of an image in a display system which divides a time width of a field of an image signal into a plurality of weighted subfields and controls operation of the subfields. The tone display method includes the steps of coding the image signal in the plurality of weighted subfields the plurality of weighted subfields including a plurality of most significant subfields having respective weights which are substantially equal to one another, and a plurality of less significant subfields having respective weights each of which is less than each of the weights of the most significant subfields, a sum of all of the weights of the less significant subfields being greater than each of the weights of the most significant subfields, the coding being chosen from a plurality of codings all representing substantially a same tone level when a tone level of the image signal is not less than each of the weights of the most significant subfields, and displaying the image signal coded with the chosen coding.

    摘要翻译: 一种用于在显示系统中显示图像的色调的色调显示方法,其将图像信号的场的时间宽度分割成多个加权子场并且控制子场的操作。 色调显示方法包括以下步骤:对多个加权子场中的图像信号进行编码,所述多个加权子场包括具有彼此基本相等的各自权重的多个最高有效子场,以及具有相应权重的多个不太重要的子场 其中每个权重小于最高有效子字段的权重中的每一者,所述较小有效子字段的所有权重的和大于最高有效子字段的权重中的每一者的权重,所述编码选自多个 当图像信号的音调电平不小于最高有效子场的权重中的每个时,所有代表基本上相同音调电平的编码,并且显示用所选择的编码编码的图像信号。

    Tone display method and apparatus for displaying image signal
    2.
    发明授权
    Tone display method and apparatus for displaying image signal 失效
    用于显示图像信号的色调显示方法和装置

    公开(公告)号:US6100939A

    公开(公告)日:2000-08-08

    申请号:US714409

    申请日:1996-09-16

    摘要: A intra-field time division tone display method for dividing the time width in a field of a TV signal into a plurality of subfields in the pixel storing time direction and displaying the TV image by controlling the presence or absence of light emission of the subfields and an apparatus therefor, wherein there are at least two subfields (most significant subfields) whose luminant time widths are longest and almost equal and when it is assumed that the tones are displayed in the ascending order starting from the lowest level of tone in light emission of the subfields, the tone of a TV image signal is displayed under a rule that two or more light emissions are not started from the aforementioned at least two most significant subfields at the same time, accordingly the dynamic false contour noise of a moving image followed by movement of the viewing point can be reduced remarkably and a moving image of high image quality and high quality can be obtained.

    摘要翻译: 一种场内时分色调显示方法,用于将TV信号的场中的时间宽度划分为像素存储时间方向上的多个子场,并且通过控制子场的发光的存在或不存在来显示TV图像; 一种装置,其中存在至少两个发光体时间宽度最大且几乎相等的子场(最重要的子场),并且当假定以从上次发出的色调的最低级别开始显示色调时, 在子场中,电视图像信号的色调在同时从上述至少两个最高有效子场开始两个或更多个光发射的规则被显示,因此运动图像的动态假轮廓噪声紧随其后 可以显着地降低观察点的移动,并且可以获得高图像质量和高质量的运动图像。