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    • 1. 发明申请
    • METHOD AND APPARATUS FOR LOW MEMORY RENDERING
    • 低存储器渲染的方法和装置
    • WO2003039133A1
    • 2003-05-08
    • PCT/US2002/034876
    • 2002-10-29
    • HEWLETT-PACKARD COMPANY
    • OBRADOR, Pere
    • H04N1/40
    • H04N1/40G06K15/1821G06K15/1823G06K15/1852G06K15/1861
    • A method and an apparatus used, for example, in conjunction with a computer or similar device, provides for multi-resolution rendering of image data, where the image data includes background image data, vector data and text data, so as to accommodate memory capacities of rendering devices. The computer (22) may send image data in a multi-resolution format from the computer to one of several rendering devices (20, 40, 50, 60, 70). The multi-resolution format may be achieved by frequency domain coding (420) or generation of image swaths (410), or a combination thereof. The image data may first be sent (505) in a low resolution format, and a rendering device determines, based on its memory, whether the corresponding image or text should be rendered. Next, vector data (510) and/or text data (515) may be supplied to the rendering device. Then, higher resolution data may be sent (525, 535) after the text/vector date so as to maximize memory usage of the rendering device. Additionally, in a printing application, the image data may be divided into swaths (310), with each swath separately provided to a printer.
    • 例如,结合计算机或类似设备使用的方法和装置提供图像数据的多分辨率渲染,其中图像数据包括背景图像数据,矢量数据和文本数据,以便适应存储容量 的渲染设备。 计算机(22)可以将多分辨率格式的图像数据从计算机发送到几个渲染设备(20,40,50,60,70)之一。 多分辨率格式可以通过频域编码(420)或图像条带的生成(410)或其组合来实现。 可以首先以低分辨率格式发送图像数据(505),并且渲染设备基于其存储器来确定是否应该呈现对应的图像或文本。 接下来,矢量数据(510)和/或文本数据(515)可以被提供给呈现设备。 然后,可以在文本/向量日期之后发送更高分辨率数据(525,535),以便最大化渲染设备的存储器使用。 另外,在打印应用中,图像数据可以被划分成条(310),每个条分别提供给打印机。
    • 2. 发明申请
    • IMAGE OUTPUT APPARATUS AND METHOD
    • 图像输出装置和方法
    • WO02039719A1
    • 2002-05-16
    • PCT/GB2001/004951
    • 2001-11-07
    • B41J29/38B41J5/30B41J29/00G03G21/04G06F3/12H04N1/00H04N1/23H04N1/387H04N1/40
    • H04N1/2315G06K15/1823H04N1/2307H04N1/233H04N1/2376
    • Image output apparatus comprising a marking engine (3); and a marking engine control system (2) for supplying data defining an image in a suitable format to the marking engine to cause the marking engine to output the image. The marking engine control system includes a system for: 1) determining from the data defining the image, or from the condition of the marking engine control system, whether the marking engine could output an image of a predetermined type which is not to be output, and if it could not, controlling the marking engine to output the image; and 2) if it is determined in step 1) that the marking engine could output an image of he predetermined type, determining from the data defining the image whether the image includes image characteristics indicating that the image is of the predetermined type; and controlling the marking engine to output the image only if the image is determined no to be of the predetermined type.
    • 图像输出装置,包括标记引擎(3); 以及标记引擎控制系统(2),用于将定义适当格式的图像的数据提供给所述标记引擎,以使所述标记引擎输出所述图像。 标记引擎控制系统包括一个系统,用于:1)根据定义图像的数据,或从标记引擎控制系统的状态确定标记引擎是否可以输出不被输出的预定类型的图像, 如果不能,则控制标记引擎输出图像; 以及2)如果在步骤1)中确定所述标记引擎可以输出其预定类型的图像,则从定义图像的数据中确定所述图像是否包括指示所述图像是所述预定类型的图像特征; 以及仅当图像被确定为不是预定类型时,才控制标记引擎输出图像。