首页> 外国专利> Method for choosing rate control parameters in motion-compensated transform-based picture coding scheme using non-parametric technique

Method for choosing rate control parameters in motion-compensated transform-based picture coding scheme using non-parametric technique

机译:基于非参数技术的基于运动补偿变换的图像编码方案中速率控制参数的选择方法

摘要

A method of assigning quantization values for use during the compression of images is disclosed. The method includes constructing a non-parametric model during a training phase based on relationships between image characteristics, quantization values, and required bit resources to encode images. The model is built by considering a wide sample of images. The consideration includes determining the temporal and spatial characteristics of the images, compressing the images over a range of quantization values, and recording the resultant required bit resource on a per characterization/quantization level basis. Once built, the model may be used during real time compression by determining the characteristics of the input image and using the allocated resource to find a corresponding match in the non-parametric model. The associated quantization value is then assigned to the input image.
机译:公开了一种分配量化值以在图像压缩期间使用的方法。该方法包括基于图像特征,量化值和编码图像所需的比特资源之间的关系,在训练阶段构造非参数模型。该模型是通过考虑大量图像样本而构建的。考虑因素包括确定图像的时间和空间特性,在一定范围的量化值上压缩图像以及在每个特征/量化级别的基础上记录所得的所需位资源。一旦建立,就可以通过确定输入图像的特征并使用分配的资源在非参数模型中找到相应的匹配,在实时压缩期间使用该模型。然后将关联的量化值分配给输入图像。

著录项

  • 公开/公告号US6292589B1

    专利类型

  • 公开/公告日2001-09-18

    原文格式PDF

  • 申请/专利权人 COMPAQ COMPUTER CORPORATION;

    申请/专利号US19960668153

  • 发明设计人 ROBERT C. ROSE;KING-WAI CHOW;

    申请日1996-06-21

  • 分类号G06K93/80;

  • 国家 US

  • 入库时间 2022-08-22 01:03:14

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