SonotaCo.JP
SonotaCo Network Japan Forum
SonotaCo.JP Forum Index
homeTop Page  FAQFAQ   検索検索   メンバーリストメンバーリスト   ユーザーグループユーザーグループ   登録する登録する 
 プロフィールプロフィール   プライベートメッセージをチェックするプライベートメッセージをチェックする   ログインログイン 

Ufocapture and 2 mégapixels cam

 
新しいトピックを投稿   トピックに返信    SonotaCo.JP Forum Index -> UFOCapture BBS in English
前のトピックを表示 :: 次のトピックを表示  
投稿者 メッセージ
rando42



登録日: 2010.04.05
記事: 24

記事日時: Tue Sep 04, 2012 2:42 am    記事の件名: Ufocapture and 2 mégapixels cam 引用付きで返信

Hi sonotaco

do you expect that the actual version of ufocapture is able to drive a 2Megépixels cam throught an acquisition board, have you nay recommandation for the cart ?
Or we must wait the future version of ufocapture ?


thanks
トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
SonotaCo
Site Admin


登録日: 2004.08.07
記事: 10023
所在地: 139.67E 35.65N

記事日時: Tue Sep 04, 2012 7:43 am    記事の件名: Re: Ufocapture and 2 mégapixels cam 引用付きで返信

Well, within my experience, as long as using 25 to 30fps and scintillation mask ON, 4 parallel processing is required.
Typical lowest cpuclock and required bandwidth is below.

SD NTSC 720x 480x30fps = 9.9MPix/sec 1.8GHzCpu, 20MByte/s on YUVcolor
SD PAL 720x 576x25fps = 9.9MPix/sec 1.8GHzCpu, 20MByte/s on YUVcolor
XGA 1024x 768x30fps = 22.5MPix/sec 3.2GHzCpu, 23MByte/s on 8bitBW
HD 1920x1080x30fps = 59.3MPix/sec 2.6GHzCorex4, 180Mbyte/s on RGB24bit

The figure shows the only one succeeded case that I know.
It worked stably over one year, until the camera(DMC-GH2) was broken by heat.
DMC-GH2 has many overlay info on video, so it is also not-recommendable for everybody.
The point is not software but the good HD camera for night observation, many people are wait for it.



HDcap.jpg
 説明:
 ファイルサイズ:  140.29 KB
 閲覧数:  7666 回

HDcap.jpg


トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
Lightningwizard



登録日: 2007.10.19
記事: 154

記事日時: Thu Sep 06, 2012 4:00 am    記事の件名: 引用付きで返信

Is it possible to reduce the CPU load by skipping every 2, 4 or more lines for detection? This would probably work fine for detection of most things that move or are larger than single pixels.

best regards,
Oscar

_________________
Weather & Photography
http://www.lightningwizard.com
EuroSprite blog:
http://eurosprite.blogspot.com
トップに戻る
ユーザーのプロフィールを表示  
SonotaCo
Site Admin


登録日: 2004.08.07
記事: 10023
所在地: 139.67E 35.65N

記事日時: Fri Sep 07, 2012 10:53 am    記事の件名: 引用付きで返信

Hi Oscar
Yes, you may be right.
But CPU is not main problem, but Raid0 with 4 HDDs is more serious problem.
We can use compressions to reduce the bandwidth,
but realtime FullHD compression requires far more CPU...It cannot be skipped Wink

I am intending to try a Full HD capture system using Windows8 note PC,
USB3.0 HD capture device, and USB3.0 Raid0 with 2 latest HDDs.
Please wait a few months for its report.
トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
Lightningwizard



登録日: 2007.10.19
記事: 154

記事日時: Sat Sep 08, 2012 12:07 am    記事の件名: 引用付きで返信

it seems that 180 MB/s can be done easily with a single SSD, then there would be no need for compression (it can be done afterwards). A 128 GB drive then can hold 500 clips of 2 seconds. As one probably won't need to keep all files, the interesting ones can be transferred to a backup disk and the SSD can then be cleaned for the next run. But it will be very write intensive and with everyday use the SSD may perhaps not live very long?
_________________
Weather & Photography
http://www.lightningwizard.com
EuroSprite blog:
http://eurosprite.blogspot.com
トップに戻る
ユーザーのプロフィールを表示  
Lightningwizard



登録日: 2007.10.19
記事: 154

記事日時: Thu Nov 01, 2012 9:34 pm    記事の件名: 引用付きで返信

I just found out about a RAM disk. This is software which reserves a part of the RAM and makes it available as a hard drive in the operating system. Since it is very fast to read and write to RAM, we could just select the RAM disk to save UFOCapture clips. They do have to be copied subsequently to a permanent HDD for storage, of course.

I tried Dataram RAMdisk freeware (up to 4 GB) with UFOCapture. I did not notice any reduction in file saving time, but I use Xvid compression and Windows 7/Vista always have a variable delay saving the files and getting ready to capture a new clip.
But if data bandwidth is a bottleneck, one may save some time and possibly avoid dropped frames using RAM.

Oscar

_________________
Weather & Photography
http://www.lightningwizard.com
EuroSprite blog:
http://eurosprite.blogspot.com
トップに戻る
ユーザーのプロフィールを表示  
SonotaCo
Site Admin


登録日: 2004.08.07
記事: 10023
所在地: 139.67E 35.65N

記事日時: Fri Nov 02, 2012 8:58 am    記事の件名: 引用付きで返信

Hi Oscar,
Thank you for reporting Surprised

I'am now testing Huffyuv lossless codec with 1920x1080/60i .
The data flow bankwidth becomes almost 50MB/s Exclamation
It seems storage problem can be cleared on HD.

I have restarted the development of UFOCaptureHD.
Though good camera is still very very expensive .....
Ex. Canon C100 CINEMA EOS SYSTEM can be a candidate....
Cam... 8000USD, + Lens ....
トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
rando42



登録日: 2010.04.05
記事: 24

記事日時: Thu Nov 29, 2012 6:28 pm    記事の件名: Remote way 引用付きで返信

Hi Sonotaco,


I'm expecting to find an other way for full HD vidéo, it' s to use a second recording feature as full HD bridge or a camescope.
the way to explore is to use the sound signal to convert it into a remote signal to drive throught remote pin the second unit, it's not very hard to build, but could confirm when the sound is done along the time line of the detection, I mean for example :
Head is presset to 30 and tail 30 that mean that th time line is 60 frames the sound is active at 30 ?
An also other way to activate the second unit at for example : at -15 frames to avoid the loss of some pictures before the alert signal would be to have a second trigger activated at for example 50% of the value of the sound alert.( but it's software modification ?????).
This way allowed many possibilities as full HD vidéo or rafale shooting with higher definition


Best regards
トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
SonotaCo
Site Admin


登録日: 2004.08.07
記事: 10023
所在地: 139.67E 35.65N

記事日時: Fri Nov 30, 2012 8:14 am    記事の件名: Re: Remote way 引用付きで返信

Hi, rando42
rando42 wrote:
Head is presset to 30 and tail 30 that mean that th time line is 60 frames the sound is active at 30 ?

This is almost correct, but ...
well, I am not sure why audio trigger concerns HD capturing, are you thinking using other HD time shift recorder, and UFOCapture to send the strigger for them?
If you know good HD time shift recorder that is not so expensive, plase let me know.


As for HD version of UFOCapture, wait just a few weeks, the program is almost fixed.
I am now writng manuals for it.
It will be ready before DMC-GH3 that comes on 17th/Dec,
Stay tuned at below
http://sonotaco.jp/forum/viewtopic.php?t=2876
トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
rando42



登録日: 2010.04.05
記事: 24

記事日時: Fri Nov 30, 2012 6:32 pm    記事の件名: APN/cam 引用付きで返信

Hi Sonotaco,

good news for ,the new version, you could have a glance to sony DSLR alpha from 57, 77 and 99 type the best is 99 but the price is around 2000 euros, but it's a 25 Mpixels full HD, 25600 ISO in shooting mode or 6400 in vidéo mode.
Displsy could have no information ( but on the doc only, I've not checked my self.
But for me he size is a problem, because you must fix the APN in a waterproof container, so at the end it's a very big volume.

If I find other APN, I give you the infos without any problems


best regards
トップに戻る
ユーザーのプロフィールを表示   投稿者のウェブサイトに移動
特定期間内の記事を表示:   
新しいトピックを投稿   トピックに返信    SonotaCo.JP Forum Index -> UFOCapture BBS in English All times are GMT + 9 Hours
Page 1 of 1

 
移動先:  
新規投稿: 不可
返信投稿: 不可
記事編集: 不可
記事削除: 不可
投票参加: 不可
このフォーラムで添付ファイルを投稿 できません
このフォーラムでファイルをダウンロード できます


Powered by phpBB © 2001, 2005 phpBB Group
Copyright ©2004 SonotaCo Network. All Rights Reserved.