Method and apparatus for reading film grain patterns in a raster order in film grain simulation
    6.
    发明申请
    Method and apparatus for reading film grain patterns in a raster order in film grain simulation 有权
    在胶片颗粒模拟中以光栅顺序读取胶片颗粒图案的方法和装置

    公开(公告)号:US20060083426A1

    公开(公告)日:2006-04-20

    申请号:US11251696

    申请日:2005-10-17

    IPC分类号: G06K9/00

    摘要: The present invention provides a method and apparatus for reading film grain patterns in a raster order in film grain simulation including establishing a pseudo-random starting position, repeating the pseudo-random starting position for each line of a group of film grain blocks, and using a different pseudo-random starting position for each display line of a next group of film grain blocks. In various embodiments of the present invention, the different pseudo-random starting positions are triggered by resetting at least one seed value of a pseudo-random number generator implemented to determine said pseudo-random starting positions.

    摘要翻译: 本发明提供了一种用于在胶片颗粒模拟中以光栅顺序读取胶片颗粒图案的方法和装置,包括建立伪随机开始位置,重复一组胶片颗粒块的每一行的伪随机起始位置,以及使用 对于下一组胶片颗粒块的每个显示线的不同的伪随机开始位置。 在本发明的各种实施例中,不同的伪随机起始位置通过复位实现以确定所述伪随机起始位置的伪随机数发生器的至少一个种子值来触发。

    Methods, apparatus and system for film grain simulation
    10.
    发明申请
    Methods, apparatus and system for film grain simulation 有权
    胶片颗粒模拟的方法,装置和系统

    公开(公告)号:US20060083314A1

    公开(公告)日:2006-04-20

    申请号:US11246474

    申请日:2005-10-07

    摘要: The present invention provides a method, apparatus and system for providing fast access to film grain patterns in a film grain simulation process including providing a first memory storing at least one film grain pattern and in response to a film grain pattern required by the film grain simulation process not being stored in the first memory, updating the first memory to obtain at least the required film grain pattern from at least a second memory. In one embodiment, the first memory is a local cache, the second memory is a film grain pattern database and a controller causes the examination of the local cache for a particular film grain pattern required in the film grain simulation process. In response to the required film grain pattern not being stored in the local cache, the controller causes the update of the local cache using the film grain pattern database.

    摘要翻译: 本发明提供了一种用于在胶片颗粒模拟过程中提供对胶片颗粒图案的快速访问的方法,装置和系统,包括提供存储至少一个胶片颗粒图案的第一存储器和响应于胶片颗粒模拟所需的胶片颗粒图案 处理不被存储在第一存储器中,更新第一存储器以从至少第二存储器获得至少所需的胶片颗粒图案。 在一个实施例中,第一存储器是本地高速缓存,第二存储器是胶片颗粒图案数据库,并且控制器对胶片颗粒模拟过程中所需的特定胶片颗粒图案的本地高速缓存进行检查。 响应于所需的胶片颗粒图案不存储在本地高速缓存中,控制器使用胶片颗粒图案数据库来使本地高速缓存更新。