What does it take to get a webcam to go faster?

Reply

Join Date: Dec 2004
Posts: 409
Reputation: ingeborgdot@yah is an unknown quantity at this point 
Solved Threads: 0
ingeborgdot@yah's Avatar
ingeborgdot@yah ingeborgdot@yah is offline Offline
Posting Pro in Training

What does it take to get a webcam to go faster?

 
0
  #1
Nov 13th, 2005
I have a semi fast speed of 3.0 and a pretty fast computer. Is ther any way to make your webcam go a little faster instead of frame by frame. I have a pretty nice webcam.
Antec P180 special edition, Epox 9NPA+ Ultra, AMD 64 3700+ San Diego with Zalman 7000, 2GB Corsair PC3200, Gigabyte GV--NX66T128VP, Fortron Blue Storm 500 watt,Seagate Sata 250gb, Audigy 2 ZS Gamer, Altec Lansing ADA995 5.1 THX, Digital Doc 5+, Plextor 712A, BenQ LS DW1655, Canopus ADVC50 capture card,XP Pro SP2
Reply With Quote Quick reply to this message  
Join Date: Dec 2004
Posts: 207
Reputation: Real-tiner is an unknown quantity at this point 
Solved Threads: 7
Real-tiner Real-tiner is offline Offline
Posting Whiz in Training

Re: What does it take to get a webcam to go faster?

 
0
  #2
Dec 7th, 2005
Possibilities:

1. A higher speed connection.

If you have standard dial-up, it's going to go frame-by-frame. The data can't go out fast enough to do anything except frame by frame.

A 640 X 480 24-bit color frame contains 7372800 bits. At 56Kbaud, it will take 164.5 seconds (2 minutes 41.5 seconds) to transmit one frame (including the modem synchronizing bits).

2. Lower resolution.

Leaving out every other pixel both vertically and horizontally divides the size of each frame by 4, making transmission of the 1843200 bits take only 1/4 of the time.

3. Monochrome.

Sending the picture in grayscale instead of color reduces the size to 2457600 bits, and the time to 1/3 of that taken with color.

4. Reduced color set.

Using 256 colors also reduces the size to 2457600 bits and the time to 1/3 of that taken with 24-bit color.

5. Intermittent capture.

Instead of capturing one frame every 164.5 seconds, capture a 20 second segment every so often, and transmit it over a longer period. The receiving person then can reconstitute it at the faster speed by downloading, then playing.

6. Data compression.

Using data compressing techniques (such as mpeg) allows the subsequent frames to send only the data needed for the changing parts of the picture.
Reply With Quote Quick reply to this message  
Join Date: Dec 2004
Posts: 409
Reputation: ingeborgdot@yah is an unknown quantity at this point 
Solved Threads: 0
ingeborgdot@yah's Avatar
ingeborgdot@yah ingeborgdot@yah is offline Offline
Posting Pro in Training

Re: What does it take to get a webcam to go faster?

 
0
  #3
Dec 7th, 2005
I have 3008kbps which is pretty fast. I could probably do some of the other things but that takes some of the fun out of it.
Antec P180 special edition, Epox 9NPA+ Ultra, AMD 64 3700+ San Diego with Zalman 7000, 2GB Corsair PC3200, Gigabyte GV--NX66T128VP, Fortron Blue Storm 500 watt,Seagate Sata 250gb, Audigy 2 ZS Gamer, Altec Lansing ADA995 5.1 THX, Digital Doc 5+, Plextor 712A, BenQ LS DW1655, Canopus ADVC50 capture card,XP Pro SP2
Reply With Quote Quick reply to this message  
Join Date: Aug 2005
Posts: 902
Reputation: chrisbliss18 is an unknown quantity at this point 
Solved Threads: 23
chrisbliss18's Avatar
chrisbliss18 chrisbliss18 is offline Offline
Posting Shark

Re: What does it take to get a webcam to go faster?

 
0
  #4
Dec 7th, 2005
Is 3mbps your downspeed? If so, what is your upspeed?

Furthermore, are you sure that your connection speed is the limiting factor? What about the people that are viewing your cam? What are their connection speeds?

Are you multicasting or do you have to run a connection for each viewer?
Did we help you? Did we miss the point entirely? Update your thread and let us know.
Don't like the answers you are getting?
Did you try searching?
Clean up and optimize Windows 2000/XP
Reply With Quote Quick reply to this message  
Join Date: Dec 2004
Posts: 409
Reputation: ingeborgdot@yah is an unknown quantity at this point 
Solved Threads: 0
ingeborgdot@yah's Avatar
ingeborgdot@yah ingeborgdot@yah is offline Offline
Posting Pro in Training

Re: What does it take to get a webcam to go faster?

 
0
  #5
Dec 8th, 2005
1500kbps down up? My up is around 512 kbps.
Antec P180 special edition, Epox 9NPA+ Ultra, AMD 64 3700+ San Diego with Zalman 7000, 2GB Corsair PC3200, Gigabyte GV--NX66T128VP, Fortron Blue Storm 500 watt,Seagate Sata 250gb, Audigy 2 ZS Gamer, Altec Lansing ADA995 5.1 THX, Digital Doc 5+, Plextor 712A, BenQ LS DW1655, Canopus ADVC50 capture card,XP Pro SP2
Reply With Quote Quick reply to this message  
Reply

This thread is more than three months old.
Perhaps start a new thread instead?
Message:



Similar Threads
Other Threads in the USB Devices and other Peripherals Forum
Thread Tools Search this Thread



Tag cloud for USB Devices and other Peripherals
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC