<< Chapter < Page Chapter >> Page >

Implementation with a widescreen movie

To evaluate our adaptive ROI system, a scene from the movie “Punch Drunk Love” was analyzed. A straight-cut fullscreen version was generated, and our adaptive ROI system was used to generate a pan-and-scan fullscreen version. The pan-and-scan version was analyzed by tracking the ROI midpoint as a function of frame number.

Roi midpoint tracking

To illustrate the mobility of the ROI midpoint, the following charts show the deviation of the midpoint from center after processing by motion, edge, and focus detection individually and combined. The first 4 charts show the unfiltered results of processing, while the last chart shows the filtered ROI midpoint using the combined processing.

Results of processing: motion only

Results of processing: edges only

Results of processing: focus only

Results of processing: combined methods, no filtering

Results of processing: combined methods, with filtering

Image results

The following images illustrate the functionality of our adaptive ROI system compared to a center-cut fullscreen image. The images are taken from the same scene as was used for the above analysis, in the Frame # 1000 to 2000 range.

Original widescreen frame

Result of center-cut fullscreen conversion

Result of adaptive roi fullscreen conversion

Video Results

Here you can download a center-cut fullscreen and an Adaptive ROI fullscreen version of the scene above. The videos “with black bars” show a 16:9 video with black bars over the regions that would be cropped out – the ROI is still 4:3.

Note that the videos go further in the scene than the charts above.

Adaptive ROI fullscreen

Adaptive ROI with black bars

Center-cut fullscreen

Center-cut with black bars

Questions & Answers

what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
how to synthesize TiO2 nanoparticles by chemical methods
what's the program
what chemical
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!

Source:  OpenStax, Adaptive region of interest for video. OpenStax CNX. Dec 14, 2010 Download for free at http://cnx.org/content/col11256/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Adaptive region of interest for video' conversation and receive update notifications?