电子工程学研究计划书（Research Proposal）范文模板

PhD Research Project Proposal
By
Manoranjan Paul

1. Title
A New Approach to Very Low Bit-Rate Video Coding Systems

2. Objective
To develop a very low bit-rate video coding system (MPEG4/H.26X based architectures, algorithms, and applications) with scalable bitrate vs. video picture quality facilities for video-telephony, videoconferencing, and video streaming to mobile phones and handheld personal digital assistants (PDA), which have limited processing and bandwidth capacity.

3. Statement of the Research Problem

Introduction
Video is incredibly stimulating in electronic communications and multimedia applications. Video can do a great deal to enhance a presentation, illustrate a proper technique, or advertise a new product. Video files are photographic images played at speeds that make it appear to the human eye as if the images or frames are in full motion. Such files can be extremely large because of the number of images required to give the appearance of motion. Depending on the screen size of the video file, a single second of uncompressed video running at 30 frames per second may require more than 30 MB of storage space. In addition to storage, Bandwidth, the amount of data a communication channel can carry, is also an obstacle to the delivery of video.

Delivering video over the Internet is challenging because it needs huge amount of storage capacity and a wide bandwidth.

Despite these challenges, more and more multimedia applications, including digital videos, are disseminated everyday via the Internet and mobile telephone networks. In order to be used effectively however, video is often compressed for storage and transfer, and then decompressed for use. Research into very low bit-rate digital video coding face additional daunting challenges of meeting two inherently conflicting requirements—reducing the transmission bit-rate as well as increasing the image quality—that are sometimes inversely proportional due to bandwidth of communication medium and computational complexity. So video compression with reasonable image quality is a very active research topic currently. Compression depends on two factors, (1) motion estimation— a process of estimating the pixels of the current frame from the reference frame and (2) motion compensation— a process of compensation for the residual error after motion estimation. The following are three widely used motion estimation processes: