Re: [OSM-talk] Video inputs to OpenStreetView
DSLR - The Canon 50D has HD video with manual focus. Which would record high quality shots. Video - I borrowed a camera from a friend the other day, it was a helmet cam kit from dogcam it has a small colour camera unit that you put on the helmet or bike/car. It also has a seperate unit that records the data to a cf card and will record for 5 hours. Here is the best bit it has a gps reciver port on it so it can do gps logging at the same time. Irrc the kit is ~£500 but decent kit, I used it for onbike recordings of Cadwell Park but sadly I didn't have a gps reciver to plug into it. I did a test with me driving in the van so I might try and match it to my gps log (zumo550) and see how it goes. Jack On Aug 18, 2009 6:12 PM, "Mike N." wrote: > Just a thought on this... do you know which frame of the GOP this is from. > I frames would be th... I played with the jog mode, but could not find a clearer view in a nearby frame. This is the Contour HD - fantastic for general sports and action recording, but not quite a dream cam for OSM surveys. It has a sports mode for 60 FPS, but that will also reduce the field of view from 135 degrees to 90 degrees. ___ talk mailing list talk@openstreetmap.org http://li... ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
> Just a thought on this... do you know which frame of the GOP this is from. > I frames would be the clearest, followed by P and then B. > > The issue of blur may be able be reduced if your camera has a sports or > fast shutter mode. I played with the jog mode, but could not find a clearer view in a nearby frame. This is the Contour HD - fantastic for general sports and action recording, but not quite a dream cam for OSM surveys. It has a sports mode for 60 FPS, but that will also reduce the field of view from 135 degrees to 90 degrees. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 si...@mungewell.org schreef: >>From the Firewire camera link... > -- > A last thing you might consider: CMOS sensors (and some CCD but it is less > efficient) have selectable 'regions of interrest' (ROI). This can increase > the framerate dramatically with high-res cameras, or provide software > pan/tilt by only sending an rectangular image region selected by the user. > This is for instance very nice for high-res, high-speed object tracking. > -- > > If you got really fancy you could have a split optics into a lowish res > camera pair with a high res camera, so that regions of interest could be > automatically tracked... The point with CMOS camera's is that they usually have electronic rolling shutters that gets a really /bad/ result when moving the camera. Stefan -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREKAAYFAkqK3tgACgkQYH1+F2Rqwn3yuACeONEEWUutHvvxOUPzxLjlLk9e qQkAoIxkMIDLN3bYDUtDyqrdZf3pZ0+W =JupM -END PGP SIGNATURE- ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 si...@mungewell.org schreef: >> Check also the ContourHD camera :) We are also experimenting with that. > > Looks pretty sweet shame it doesn't have an external MIC input for > recording (FSK'ed) telemetery data such as speed/lat/log/ele/etc. > > If they were really smart they would put a NMEA input port and have this > stored as additional data within the MPEG stream. That would 'sell it' to > a lot of people!! You know that the company that made Amarillo trip trackers actually added features that were proposed by us. We just have to find the guys in Asia that makes these stuff :) Stefan -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREKAAYFAkqK3xYACgkQYH1+F2Rqwn2Q7ACeKpT1X8icWBcBPnsAPMflddZH wYEAnRObDRda2JzvilwYbu+PNjejrXGZ =KF9F -END PGP SIGNATURE- ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
>> From: "Elena of Valhalla" >> >> I took that yesterday from a helmet cam 1280 X 720. Generally I >> cannot >> read street signs across the street. This one is partially blurred by >> motion. >> Just a thought on this... do you know which frame of the GOP this is from. I frames would be the clearest, followed by P and then B. The issue of blur may be able be reduced if your camera has a sports or fast shutter mode. Simon. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
> Check also the ContourHD camera :) We are also experimenting with that. Looks pretty sweet shame it doesn't have an external MIC input for recording (FSK'ed) telemetery data such as speed/lat/log/ele/etc. If they were really smart they would put a NMEA input port and have this stored as additional data within the MPEG stream. That would 'sell it' to a lot of people!! Simon. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
>From the Firewire camera link... -- A last thing you might consider: CMOS sensors (and some CCD but it is less efficient) have selectable 'regions of interrest' (ROI). This can increase the framerate dramatically with high-res cameras, or provide software pan/tilt by only sending an rectangular image region selected by the user. This is for instance very nice for high-res, high-speed object tracking. -- If you got really fancy you could have a split optics into a lowish res camera pair with a high res camera, so that regions of interest could be automatically tracked... Simon. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 si...@mungewell.org schreef: > Using a decent mount (ie. DIY steady cam ideas) and in-built image > stablization in the camera may help. Check also the ContourHD camera :) We are also experimenting with that. Stefan -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREKAAYFAkqK2DsACgkQYH1+F2Rqwn35rACfTIq6mn44EARZWPitmvKEwfYh 6WgAn3HTpfDxprxtq13TxnYdZxhsJW9E =8B3j -END PGP SIGNATURE- ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
> Have you guys tried to take photos of signs with street names? You > need a steady hand, and you aren't going to get a better results by > using an video from a bike mounted cam. This probably explains why the 'pros' use some expensive cameras... ;-) http://damien.douxchamps.net/ieee1394/cameras/ Using a decent mount (ie. DIY steady cam ideas) and in-built image stablization in the camera may help. If you are attempting to record onto a PC (rather than just on the camera itself) you could look into DV4Linux (http://dv4l.berlios.de/) and use a firewire capable camcorder. >From what I understand most HD camcorders don't have the firewire port with live video stream, and the video stream is encoded as MPEG4 rather than DV (basically MJPG) so there is more work to extract the image afterwards. For HD maybe you could grab just the I frames (which would be equivilant to MJPG at a lower refresh rate)... Cheers, Mungewell. PS. I did look into using a DSLR over USB, however it seems the limiting factor is that the shutter would wear out pretty quickly. There are some EOSes with a live preview modes (supported by the sensor) but these are at a lowish resolution. See: http://sourceforge.net/forum/message.php?msg_id=7538524 ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Erik Johansson schreef: > Have you guys tried to take photos of signs with street names? We a lot of photos of that :) Stefan -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREKAAYFAkqKzFgACgkQYH1+F2Rqwn208QCgifK3b/sb3JLjujV5G8rN46wl aVEAnjUsgzbNUTS0hCyF8w3CCoPoinHw =SpEp -END PGP SIGNATURE- ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
On Mon, Aug 17, 2009 at 3:49 PM, Mike N. wrote: > From: "Elena of Valhalla" > >>> On Mon, 17 Aug 2009, John Smith wrote: Is 640x480 good enough? >>> ;) ofcourse we want 1080p ;) >> >> is 640x480 good enough e.g to read street names and other signs? > > http://home.att.net/~niceman/VidCap1.jpg > > I took that yesterday from a helmet cam 1280 X 720. Generally I cannot > read street signs across the street. This one is partially blurred by > motion. > Have you guys tried to take photos of signs with street names? You need a steady hand, and you aren't going to get a better results by using an video from a bike mounted cam. Though the video is very useful for other things, micro mapping. /Emj ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
From: "Elena of Valhalla" >> On Mon, 17 Aug 2009, John Smith wrote: >>> Is 640x480 good enough? >> ;) ofcourse we want 1080p ;) > > is 640x480 good enough e.g to read street names and other signs? http://home.att.net/~niceman/VidCap1.jpg I took that yesterday from a helmet cam 1280 X 720. Generally I cannot read street signs across the street. This one is partially blurred by motion. The actual results for a an OpenStreetView session would depend on the camera's field of view and speed of movement. In practice, if there were 4 videos with smaller fields of view, street signs would be more readable. OpenStreetView might prefer a larger field of view for a better feel for the location rather than being able to read small print street signs. Mike ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
On Mon, 17 Aug 2009, Elena of Valhalla wrote: > On Mon, Aug 17, 2009 at 3:12 PM, Stefan de Konink wrote: > > On Mon, 17 Aug 2009, John Smith wrote: > >> Is 640x480 good enough? > > ;) ofcourse we want 1080p ;) > > is 640x480 good enough e.g to read street names and other signs? Signs yes, names... I have doubts. But this will also depend on the shutterspeed (motion blur prevention). For now Tijs does only work on photos with the name as subject on the photo. Stefan ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
On Mon, Aug 17, 2009 at 3:12 PM, Stefan de Konink wrote: > On Mon, 17 Aug 2009, John Smith wrote: >> Is 640x480 good enough? > ;) ofcourse we want 1080p ;) is 640x480 good enough e.g to read street names and other signs? -- Elena ``of Valhalla'' homepage: http://www.trueelena.org email: elena.valha...@gmail.com ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
On Mon, 17 Aug 2009, Erik Johansson wrote: > On Sun, Jul 26, 2009 at 8:35 PM, OJ W wrote: > > I'm just looking at ways of getting video-camera data into openstreetview > > > > http://wiki.openstreetmap.org/wiki/Georeference_video > > > > http://dev.openstreetmap.org/~ojw/StreetPhotos/test3/output.kml > > > > is anyone else working with georeferenced videos for mapping? > > I tried but my point and shoot overheated, and the time > stamps/framerate was 10s off in the end.. :-) The Elphel geocamera gives direction GPS etc. embedded in the video stream. That would probably the killer cam ;) Stefan ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
On Mon, 17 Aug 2009, John Smith wrote: > --- On Mon, 17/8/09, Erik Johansson wrote: > > Anyways I was pointed to a camera that records your > > journey. > > http://technabob.com/blog/2009/08/12/selfic-cube-7100-car-black-box-recorder/ > > Is 640x480 good enough? ;) ofcourse we want 1080p ;) But to be honest, having seen progressing 480p out of a canon in MJPEG, I'm very happy to watch that ;) Stefan ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
--- On Mon, 17/8/09, Erik Johansson wrote: > Anyways I was pointed to a camera that records your > journey. > http://technabob.com/blog/2009/08/12/selfic-cube-7100-car-black-box-recorder/ Is 640x480 good enough? ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Video inputs to OpenStreetView
On Sun, Jul 26, 2009 at 8:35 PM, OJ W wrote: > I'm just looking at ways of getting video-camera data into openstreetview > > http://wiki.openstreetmap.org/wiki/Georeference_video > > http://dev.openstreetmap.org/~ojw/StreetPhotos/test3/output.kml > > is anyone else working with georeferenced videos for mapping? I tried but my point and shoot overheated, and the time stamps/framerate was 10s off in the end.. :-) Anyways I was pointed to a camera that records your journey. http://technabob.com/blog/2009/08/12/selfic-cube-7100-car-black-box-recorder/ Available for ~150 euro with shipping. http://english.gmarket.co.kr/challenge/neo_goods/goods.asp?goodscode=167668112 -- /Erik ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
