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Subjective image quality in multimedia systems

机译：多媒体系统中的主观图像质量

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The subjective image quality seems to be one of crucial parameters in modern multimedia systems. The perception of observer is a final issue to be followed and technical parameters of the system are the issues of second order. Therefore the traditional approach of "fidelity" would be better consequently replaced by the multimedia term the subjective image perceived quality or "goodliness". It can be shown that some distortions and/or artifacts can be perceived as pleasant and the goodliness will be increased when the distortion level is increased. At the same time the fidelity will drop down. Based upon more than four years of research experience the paper discusses various impacts of modem multimedia technology on the subjective quality of image. The main attention is focused on the image compression techniques and standards. The nature of distortions and artifacts is demonstrated on selected examples of image compression standards (fractals, DIVX, VP6 etc.). Finally the relevant image quality parameters are listed and analyzed for the area of imaging security systems.
机译：主观图像质量似乎是现代多媒体系统中的关键参数之一。观察者的感知是要遵循的最终问题，而系统的技术参数是二阶问题。因此，“保真”的传统方法将因此更好地被多媒体术语“主观图像感知质量或”好”所取代。可以看出，当失真水平增加时，一些失真和/或伪像可以被感觉为令人愉悦的，并且美观度将得到提高。同时，保真度将下降。基于四年多的研究经验，本文讨论了现代多媒体技术对图像主观质量的各种影响。主要的注意力集中在图像压缩技术和标准上。在图像压缩标准的选定示例（分形，DIVX，VP6等）上演示了失真和伪影的性质。最后，列出并分析了成像安全系统领域的相关图像质量参数。

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