HDR Video:Some Current Examples and Possibilities

I was reading about XDepth Raw/Jpeg announcement. I was gonna write some snide comment about how utterly boring and useless this new File Format is(and It really is pretty stupid) but once I got on their site I discovered they had an HDR video codec.  They have an example posted but it doesn’t look that exciting .

Here it is.

[blip.tv ?posts_id=1189923&dest=-1]

they used the HDRC® MDC04 CL camera system to take the footage

640 x 480 Pixel) · > 140 dB Dynamic Range · Base Camera LinkTM Interface, 12 Bit per Pixel (upper 10 Bit are Fixed-Pattern corrected) · 30 fps at Full-, 35 fps at VGA-, 118 fps at CIF-Resolution · 12 MHz Pixel Rate · User defined Sub Framing · Very compact, only 54mm x 46mm x 46.4 mm (H, W, L) · Standard C-Mount Lens

The HDRC VGAx Camera LinkTM Camera Standard. Features · 768 x 496 Pixel (Standard Camera Configuration: 640 x 480 Pixel) · > 140 dB Dynamic Range · Base Camera LinkTM Interface, 12 Bit per Pixel (upper 10 Bit are Fixed-Pattern corrected) · 30 fps at Full-, 35 fps at VGA-, 118 fps at CIF-Resolution · 12 MHz Pixel Rate · User defined Sub Framing · Very compact, only 54mm x 46mm x 46.4 mm (H, W, L) · Standard C-Mount Lens

Perhaps It’s because the image is truly HDR as opposed to a tonemapped 8 bit version.  But then I suppose I couldn’t see it on my monitor if that was the case.

It seems that HDR video has actually been around awhile according to this book

real-time HDR video acquisition with a dynamic range of more than 7 ordersof magnitude has evolved to a mature technology since it was first demonstrated in 1992 [1]. Fundamentally, the pixels in these sensors mimic the logarithmic compression of the high input range similar to the photoreceptors in our eyes making them “bionic” sensors in many respects like contrast sensitivity, separation of the illuminant and color constancy [2]. Cameras with such sensors have been available since 1996 and a significant amount of research and development along the vision chain including video processing and the challenging art of displaying HDR video to our eyes has been performed.”

It seems there is interest in getting cameras to use for “sophisticated machine vision or process control applications.. Oh Boy Oh Boy!”

But there is that camera available. They also sell this one.

1.4, B/W camera) · Integrated realtime image processing · Analog output PAL/NTSC · Opto-isolated trigger control · RS232 control of output modes The HDRC® GEVILUX camera is a fully automatic CCTV video camera with an extremely high dynamic range of >120 dB. Various integrated image processing modes like contrast enhancement, different lock-up-tables and edge detection are particularly suitable for sophisticated machine vision or process control applications.

· HDRC® VGAx sensor 640 x 480 · Dynamic range > 120 dB · B/W or Color camera · Min. detectable illuminance 0.02 Lux ( f:1.4, B/W camera) · Integrated realtime image processing · The HDRC® GEVILUX camera is a fully automatic CCTV video camera with an extremely high dynamic range of >120 dB. Various

I’m not sure how much it costs but it looks like it hooks up to your computer and comes with some software.

Remember all those great artist of the past like Leonardo daVinci, Ansel Adams, Stanley Kubrick, Robert Mapplethorpe etc. etc. well they all had one thing in common they experimented with new techniques.  Did this interest in technology cause their works to be emotionless expression of form.  No they did not.  The hack or the “Proffessional” artist is the one who knows exactly what they are doing.  They are  the ones who could talk your ear off about technique.  They are the ones who buy all those ridiculous photography books like “Mastering the art of……” It’s all about knowing what your doing is going to be approved by other people. It all about having a skill.  But by the time the an art reaches the point of having tools for proffesionals it is already becoming invisible.  When was the last time a film shook you up are awakened you. Can you imagine the amazement people must have felt just seeing the first photographs.

Go back to the source! The light, the eye, perspective in more than just the 3D emulation.  Just experiment there are no rules.

Oops it appears my horse is getting much to high at this point.

Well here is a discussion thread about figuring out how someone could do HDR video with the current cameras.

“True HDR Video” Discussion On DOOM9

Here’s a time lapse video that looks HDR you want to watch the whole thing as the best part is near the end

Here’s another time lapse with the classic tone mapped look of some HDR photographs.

2 responses to “HDR Video:Some Current Examples and Possibilities

  1. Pingback: FCProse Episode 4 - cut color compress 5dmarkii footage « pro • active • ly·

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