نتایج جستجو برای: روش JPEG 2000

تعداد نتایج: 541365  

Journal: :The Journal of The Institute of Image Information and Television Engineers 2010

دو گام اساسی در فشرده‎سازی تصویر به شیوه JPEG 2000 تبدیل موجک و کدگذار صفحات بیتی می‎باشند. در این روش ابتدا از تصویر تبدیل موجک گرفته می‎شود، سپس بسته به نرخ فشرده‎سازی مورد نظر، تعدادی از صفحات بیتی ضرایب تبدیل موجک از پرارزش‎ترین بیت تا بیت کم‎ارزش‎تر کد می‎گردند. پس از دستیابی به نرخ فشرده‎سازی مورد نظر، سایر صفحات کم‎ارزش‎تر ضرایب موجک حذف می‎گردند. در به‌کارگیری این روش، تصاویری که وضوح ک...

Journal: :RFC 2004
David Singer Richard Clark Daniel T. Lee

Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document serves to register...

2005
Glenn Pearson

The specifications of Motion JPEG 2000 (MJ2) and related documents in the JPEG 2000 family are analyzed, to identify and assess the multiple mechanisms available for storing metadata within a MJ2 file and the types of metadata that can be so accommodated. Adequate mechanisms seem to exist for associating metadata with the production as a whole, individual tracks, and individual frames. In those...

2004
Jérôme Meessen Christophe Parisot Jean-François Delaigle C. Lebarz Didier Nicholson

This paper proposes an integrated solution for smart delivery of video surveillance data. The system is developed within the IST project WCAM "Wireless Cameras and AudioVisual Seamless Networking" which is presented as well [1]. The main feature of our system is it includes smart video coding based on automatic scene analysis and understanding. Specifically, the segmentation results are used fo...

1998
Andrew Perkis Tor A. Ramstad Geir Øien Till Halbach Daniel T. Lee

Journal: :IEICE Transactions 2005
Masaaki Fujiyoshi Osamu Watanabe Hitoshi Kiya

This paper proposes a quantization-based image-quality guaranteed watermarking (IQGW) method using a nonorthogonal discrete wavelet transformation. An IQGW method generates watermarked images of a desired image quality for any image, neither with trial and error nor with image-dependent parameters. To guarantee the image-quality, the proposed method adjusts the energy of the watermark sequence ...

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