公开(公告)号：US07783117B2

公开(公告)日：2010-08-24

申请号：US11691339

申请日：2007-03-26

Applicant: Che-Bin Liu ,  Anoop K Bhattacharjya

Inventor： Che-Bin Liu ,  Anoop K Bhattacharjya

IPC: G06K9/36 ,  G06K9/46

CPC classification number: H04N1/409 ,  G06K9/38 ,  G06K2209/01

Abstract: Disclosed are embodiments of systems and methods to generate background and foreground images for a document, which enables high-quality and high-ratio document compression. In embodiments, high-accuracy layer processing enables text enhancement, paper color removal, and many other advanced image analysis and processing. Embodiments of the systems support several operation modes and its many parameters, such as layer compression ratios, image segmentation, and modulized image processing, may be adjusted to generate optimal compressed files for different purposes.

Abstract translation: 公开了用于为文档生成背景和前景图像的系统和方法的实施例，其实现高质量和高比例的文档压缩。 在实施例中，高精度层处理使得文本增强，纸张颜色去除以及许多其他高级图像分析和处理成为可能。 系统的实施例支持若干操作模式，并且可以调整其诸如层压缩率，图像分割和模块化图像处理等许多参数，以便为不同目的生成最佳压缩文件。

公开(公告)号：US07734088B2

公开(公告)日：2010-06-08

申请号：US11622316

申请日：2007-01-11

Applicant: Anoop K Bhattacharjya ,  Victor Ivashin ,  Kar-Han Tan

Inventor： Anoop K Bhattacharjya ,  Victor Ivashin ,  Kar-Han Tan

IPC: G06K9/36

CPC classification number: G09G3/2003 ,  G09G3/2051 ,  G09G5/06

Abstract: Methods and systems are disclosed for processing image frames to reduce the bandwidth requirements. Embodiment of the present invention may include mode-specific image frame rendering in photorealistic and non-photorealistic modes, such as outline and cartoon modes. In embodiments, update regions may be identified and reduced by an edge position mask. In embodiments, update regions may be bounded by rectangles and such regions may be reduced in number by merging regions together using various no-cost or cost approaches. To improve compressibility, regions to be transmitted that do not require updating at the receiver may be encoded as transparent.

Abstract translation: 公开了用于处理图像帧以减少带宽要求的方法和系统。 本发明的实施例可以包括例如轮廓和卡通模式的照片写实和非真实感模式中的模式特定图像帧渲染。 在实施例中，可以通过边缘位置掩码来识别和减少更新区域。 在实施例中，更新区域可以由矩形界定，并且通过使用各种无成本或成本方法将区域合并在一起可以减少这些区域的数量。 为了提高可压缩性，在接收机处不需要更新的要发送的区域可以被编码为透明的。