Discussion Class 10

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Discussion Class 10

• Informedia

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Discussion Classes
Format Question Ask a member of the class to
answer. Provide opportunity for others to
comment. When answering Stand up. Give your
name. Make sure that the TA hears it. Speak
clearly so that all the class can
hear. Suggestions Do not be shy at presenting
partial answers. Differing viewpoints are
welcome.
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Question 1 Automated Extract of Text
Informedia extracts text automatically from video
in three different ways. (a) What are they? (b)
How effective would you expect each to be for
information retrieval?
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Question 2 Speech recognition and retrieval
performance
What does the following graph tell us?
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Question 3 User Interface
On the next slide (a) What is the function of
each panel? (b) How is each implemented?
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(No Transcript)
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Question 4 Browsing
(a) Informedia provides multiple levels of
abstraction and summarization. Why? (b)
Describe the function of each of the following
i visual icons ii one-line headlines
iii film strip views iv video skims v
transcript following of audio track (c) How is
each produced?
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Question 5 Content and Context
"The Informedia processing provided state of the
art access to video by content. Current efforts
will communicate information trends across time,
space, and sources by furthering analysis and
understanding of the context as well as the
content." (a) What does the word content mean in
this paragraph? (b) What does the word context
mean in this paragraph?
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Question 6 Collages

• On the next slide
• What is the relationship between the two parts of
  the figure?
• How is each implemented?

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(No Transcript)
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Question 7 Image Understanding

What role does image understanding perform in
each of the following in Informedia? (a) scene
break detection (icon selection, film-strip and
skimming, segmentation) (b) image
similarity matching (c) camera motion and object
tracking (d) video-OCR (e) face detection and
association
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Question 8 Scalability
Throughout the article there are mentions of
scale. (a) What has the project done to evaluate
scalability? (b) What are the weaknesses that
might prove difficult on a larger scale?
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Question 9 Overall
Informedia had the following objectives (a)
retrieval performance in the presence of
inaccuracy and ambiguity (b) approximate match
in meaning and visualization (c) presentation
and reuse of video content as a new data type
with space and time constraints (d)
interoperability in the presence of restricted
use intellectual property and the absence of data
and protocol standards. How well has each been
achieved?