High Definition (HD) Detailed Explanation
mark control
the future. It is everywhere in our life. However, when high
definition is getting more and more popular, people get frustrating to
make sense of them. So now I will introduce high definition (HD) in
detailed and hope it will be helpful to you guys.
1. What is HD?
Before we talk about HD, I will explain what is SD(standard
definition). Camcorder prduces SD videos has a resolution of 640*480.
It means that 640 lines of vertical resolution and 480 lines of
horizontal resolution. Nowadays, 16:9 widescreen became common so SD
maybe 720*480.
Now we can easily come to a conclusion that HD must have a higher
resolution that SD. Right! HD video has a higher resolution than SD
video, and now the HD camcorder can record two competing formats, 720p
and 1080i.
The first, 720p, refers to camcorders producing a resolution of
1280 x 720.
The second, 1080i, refers to camcorders producing a resolution of
1920 x 1080.
You will ask what is the difference between “p” and “i”. The "p"
in 720p stands for progressive. This means that the entire image is
refreshed at the same time, 30 times per second. Qualitatively, this
tends to produce smoother motion, and is often preferred for sports
shooting; because freeze frames will not have the same jagginess that
1080i produces. The trade-off is that 720p has less resolution.
The "i" stands for interlaced. Traditionally, camcorders split up
those horizontal rows of resolution into odds and evens. First one set
is refreshed, and then the other set. Each of these "fields" is
refreshed, back and forth, each at 30 times per second. It happens
fast enough that the human eye usually can't see the slight lag time.
However, when you pause an interlaced video clip, you'll see a
distinct jagginess.
Tips:
1080p means 11920*1080 progressive and not many camcorder can
produce this kind of hd format but many TV now and playback it.
2. What is the difference between media and format?
“Media” and “Format” are two terms that will make people
confused. First, “Media” refers to where the camcorders store the
video. And “Format” refers to the compression of the camcorder use.
These two terms make people categories HD camcorder into
different types.
Media Types:
Common media type includes “type”, “hard disc drive (HDD)”, “DVD”
and “flash memory”. Camcorders that use a type of tape called “miniDV”
and it uses the same tape with the SD camcorder, so it is more easily
to edit. Popular Model: Canon HV20, Canon HV30, Sony HDR-HC9.
HDD media is high capacity, usually 60 - 120 gigabytes. Long
record times are great, but you must have the discipline to routinely
back up video to a separate hard drive or DVD. Popular models: JVC GZ-
HD7 and GZ-HD6, Canon HG10, Sony HDR-SR12, Panasonic HDC-HS9.
DVD media in camcorder is always refers to the mini DVD (8mm). It
is really familiar with us but the time of the video you record is
limited to 15 mins when you shotting with the highest quality and you
can only play the DVD in blu ray player not in your DVD player.
Popular models: Sony HDR-UX10 and HDR-UX20, Canon HR10
Flash Memory: Many consider this the media type of the future.
Battery efficient, extremely compact, and easy. Capacities may be
limited compared to HDD, though it gets larger every year. Some
camcorders have removable memory cards, some have non-removable
internal memory, and some have both. Popular models: Canon HF10, Canon
HF100, Panasonic HDC-SD9, Sony HDR-CX7, Samsung SC-HMX20, Sanyo VPC-
HD1000
Format Types:
There are four common format types camcorder and they are “HDV”,
“AVCHD”, “MPEG-2 Transport Stream” and “AVC/H.264 MPEG-4”.
HDV is the oldest HD camcorder and it can record only 1440*1080
video and then stretch to 1920*1080 for playback. But its miniDV tape
is widely accepts by editing software.
AVCHD is introduced in 2006 by Sony and Panasonic. Every
manufacturer has a slightly different recipe for AVCHD, so finding a
compatible editing program can be tough. Also, you'll need a
powerhouse computer to work with files. All current AVCHD camcorders
record in 1080i, though the format allows for 720p. The file extension
may be .mts, .m2ts, and .ts so when you edit the video I think you
need to use [url=http://www.4videosoft.com/mts-converter.html] [b]mts
converter[/b][/url], [url=http://www.4videosoft.com/m2ts-
converter.html][b] m2ts converter[/b] [/url] and [url=http://www.
4videosoft.com/ts-converter.html][b] ts converter[/b] [/url] to help.
If you are Mac users, here are[url=http://www.4videosoft.com/mts-
converter-for-mac.html][b] mts converter for mac[/b] [/url],
[url=http://www.4videosoft.com/m2ts-converter-for-mac.html][b] m2ts
converter for mac[/b] [/url] and [url=http://www.4videosoft.com/ts-
converter-for-mac.html][b] ts converter for Mac [/b][/url]. MPEG-2
Transport Stream - JVC is the only manufacturer using this format,
found on its line of high definition Everio camcorders. On average,
the lowest overall picture quality, now that AVCHD has matured. Low
compatibility with editing software.
AVC/H.264 MPEG-4 -This format is currently used by some Samsung
and Sanyo camcorders, all of which record in 720p.
3. How to Convert MTS, M2TS, TS Videos for Different Usage?
The HD files that your camcorder recorded can be transferred to
your computer to play, but it can the video format is not supported by
iPod/iPhone/windows movie maker/Zune/Creative Zen and other video
editing and playing devices.
So you need to convert them in order to share and enjoy them
anywhere and anytime.
Today I will show you how to convert the HD video format to
standard video format easily. Here you need a [url=http://www.
4videosoft.com/mts-converter.html] [b] MTS Converter [/b][/url]. [img]
http://www.4videosoft.com/guide/hd-tools/steps.jpg[/img]
Step 1. Download it and run the MTS Converter
Step 2. Add your HD video file
Step 3. Choose output profile according to your usage
Step 4. Start Conversion just click “START” button.