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Explore the innovative AVAMA system that revolutionizes video editing for amateurs, bridging the gap between users and advanced software. Achieve professional-quality results with ease and efficiency, utilizing content-analysis technologies in multimedia. Expect seamless video production, optimized for user convenience and resource efficiency. Stay updated on the latest advancements and challenges in audio and video processing. Join the discussion to share insights and feedback on this transformative tool.
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Automatic Video Authoring with Media Analysis 2003/11/25 Chen-hsiu Huang Advisor: Dr. Ja-Ling Wu
Outline • Problem formulation • Solutions and framework • Expectations • Status report • Demonstration • Questions and discuss
Problem Formulation • The digital video capture devices such as DVs are made more affordable for end users. • It’s interesting to shoot videos but frustrating for editing them. • There’s still a tremendous barrier between amateurs (home users) and the powerful video editing software. • Finally people leave their precious shots in piles of DV tapes without editing and management. • Type I home video: memorial • Type II home video: recreational
According to a survey on DVworld*, the relations between the video length and how many times will user review them after days: • People are inpatient for videos without scenario or voice-over, especially for those with no music. • Video clips with no more then 5 minutes are best for human’s concentration. *http://www.DVworld.com.tw/
Solutions and Framework • A consumer product called “muvee autoProducer” has been announced to ease the burden of professional video editing. • The application scenario is quite simple: • Pickup a video Choose your music Produce musical video! • Although there are commercial products in the market, only few academic publications related. • Goal: To achieve the near or beyond quality in the similar application scenario with the content-analysis technologies developed in multimedia domain. Jump!
Currently finished Input video Alignment Input music Output Video Audio rhythm & Video motion/color synchronization Scene selection Key shot selection Volume ZCR Brightness Bandwidth … Framework of AVAMA system Audio segment cutting Shot change Scene change Human face Flash light Motion strength Color variance Edgeness ...
Expectations • Quality results • Time & space complexity consideration • Must not take too longer to make a video • Must not consume too much memory • Complete consumer software implementation • Deal with MPEG-1/2 videos and MPEG-1 Layer 1/2/3 audios directly without pre-processing • Simple application scenario to produce videos • The need of different profile? • Is semi-automatic necessary?
Status Report • Audio Cutting: • Cutting with zero-crossing rate (not so good) • Cutting with dramatic volume change (great results) • Brightness, bandwidth, ... • Video Segmentation: • Shot change detection by pixel MAD • Detect scenes with flash light event • Detect fast motion scenes • Longer fast motion scenes means author’s tracing some objects • Short fast motion scenes may due to • Detect human face information (time complexity?)
Questions and Discuss • Any comments are welcomed. • Special thanks for Mr. 劉嘉倫, for his videos and suggestions. • Thanks friends in DVworld who provide lots of ideas and comments.
Create Music Videos using Automatic Media Analysis, ACM Multimedia, 2002
Let’s see its demo! Back