• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Selective coding with controlled quality decay for 2D and 3D images in a JPEG2000 framework
【2h】

Selective coding with controlled quality decay for 2D and 3D images in a JPEG2000 framework

机译：在JPEG2000框架中对2D和3D图像进行质量衰减受控的选择性编码

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents some ideas which extend the functionality and the application fields of a spatially selective coding within a JPEG2000\udframework. At first, the image quality drop between the Regions of Interest (ROI) and the background (BG) is considered. In a conventional approach, the reconstructed image quality steeply drops along the ROI boundary; however, this effect could be considered or perceived objectionable in some use cases. A simple quality decay management is proposed here, which makes use of concentric ROI with different scaling factors. This allows the technique to be perfectly consistent with the JPEG2000 part 2 ROI definition and description. Another considered issue is the extension of the selective ROI coding to a 3D Volume of Interest coding. This extension is currently under consideration for the part 10 of JPEG2000, JP3D. An easy and effective 2D to 3D extension for the VOI definition and description is proposed here: a VOI is defined by a set composition of ROI generated solids, where ROI are defined along one or more volume cutting direction, and is described by the relative set of ROI parameters. Moreover, the quality decay management can be applied to this extension. The proposed techniques could have a significant impact on the selective coding of medical images and volumes. Image quality issues are very important but very critical factors in that field, which also constitutes the dominant market for 3D applications. Therefore, some experiments are presented on medical images and volumes in order evaluate the benefits of the proposed approaches in terms of diagnostic quality improvement with respect to a conventional ROI coding usage.
机译：本文提出了一些想法，这些想法扩展了JPEG2000 \ udframework中空间选择性编码的功能和应用领域。首先，要考虑感兴趣区域（ROI）和背景（BG）之间的图像质量下降。在传统方法中，重建的图像质量沿ROI边界急剧下降；但是，在某些用例中，可以认为这种效果或认为是不利的。这里提出了一种简单的质量衰减管理，它利用具有不同缩放因子的同心ROI。这使该技术与JPEG2000第2部分ROI定义和描述完全一致。另一个要考虑的问题是将选择性ROI编码扩展到3D感兴趣体积编码。 JPEG2000的第10部分JP3D当前正在考虑此扩展。在此提出了用于VOI定义和描述的简单有效的2D到3D扩展：VOI由一组ROI生成的实体组成，其中ROI沿一个或多个体积切割方向定义，并由相对集描述ROI参数。此外，质量衰减管理可以应用于此扩展。所提出的技术可能对医学图像和体积的选择性编码产生重大影响。图像质量问题在该领域非常重要，但也非常关键，这也构成了3D应用程序的主要市场。因此，在医学图像和体积上进行了一些实验，以评估相对于常规ROI编码用法在诊断质量改进方面所提出的方法的益处。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号