Advancements in Image Sensors

Jim DeFilippis, Keynote speaker at IS2013 shares his thoughts on 3D imager & display technology

22 January 2013

Jim DeFilippis CGO, Consultancy to Media and Broadcasting (formerly Fox Technologies Inc) is a keynote speaker at this year's Image Sensors conference taking place on the 19-21 March 2013 at the Park Plaza hotel in Victoria, London.

Image Sensors keynote speaker Jim DeFilippis CGO, Consultancy to Media and Broadcasting speaks exclusively to Rob Stead in the run up to IS2013.

Q: Please briefly describe your background in digital imaging

"I have been involved in digital imaging since 1990. First as the Director of Engineering at the Advanced Television Test Center, which was responsible for testing all the proposed HDTV systems for the US. This included the creation of test imagery using available camera systems as well as recording on the first all digital HDTV video tape recorder. I was then involved with the 1996 Olympic Games in Atlanta Georgia (US), where I helped facilitate the first all digital super motion video camera system (480i180) with the first hard drive disk recording system for slo motion playback. After the Olympic Games, I went to work at FOX Television. There as head of the FOX Technology DTV Lab, we worked with Philips Broadcast (later Grass Valley) on the development of new progressive scan video camera systems including 480p30fps, 720p24fps, 720p180fps imaging systems. Also instrumental in the conceptual design of the first 'data imaging' camera system developed by Philips that allowed raw capture of 2k images at 24/35/30fps."

Q: So, the chicken or egg question - does 3D display technology drive 3D imager capabilities, or the other way around?

"I believe the two two end points are somewhat independent, aside from the fact that both are locked in on stereoscopic capture and display. I believe that as auto stereoscopic displays, which use multi-view 3D presentation enter the market, there will be a corresponding interest in developing multi-view capture from multiple imaging sources."

Q: You have a broad background across digital broadcast technology - what are the key milestones you have witnessed that have enabled significant advances in image quality and the viewer experience?

"First and for most was the transition from analog devices (vidicon/saticon/plumbicon) tube devices coupled with the CRT display to digitally sampled devices (CCD/CMOS along with pixel addressed displays LCD/Plasma/LCoS). The advances in digital compression have allowed the use of higher image resolutions as well as frame rates, which have complemented the improvements in display technology. Imager technology has kept up both in quality and cost reduction. Advanced processing has improved image quality overall by 'reversing' artifacts intrinsic to the imager and display devices."

Q: What are the limitation of current 3D image capture?

"Relying on stereoscopic capture. Multi-view capture could provide better 3D imaging but requires intensive processing to convert to Left/Right eye views. Challenge of stereoscopic camera capture is maintaining proper parallax with appropriate disparity, matching the optical and electronic responses in both views (my experience is that for excellent 3D stereoscopic imagery, the error between the Left and Right views needs to be less than 1%)."

Q: Where are the opportunities for further technology refinement and innovation?

"Image processing, especially the ability to use multi-view camera systems. On the display side, the ability to produce 'glasses' free auto stereo images, without artifacts. Ultimately a practical holographic display system will be developed."

Q: Where do we go after 3D?

"Well some would say back to greater resolution (4k/8k) and or greater frame rate (48/100/120/300 fps), while some clamor for greater color gamuts. I think all the above but to reach a saturation point so that the image/display couplet exceeds the human ability to perceive that the images are not 'real'. Achieving this level of performance would provide the ultimate flexibility for producing of moving image content."

Q: Finally, we are pleased to have you on board for the conference this year, what are you hoping to gain from the event?
"To learn about image technology development outside of television and movies. I believe this is much to be learned and adopted from the medical, commercial, space and military image applications."

Take a browse through the agenda to view other IS2013 keynote speakers.

You may also be interested in comments made by Jim Lewis, CEO MESA IMAGING who gives us a sneak peak of the topics he will be addressing at this year's Image Sensors conference, including his mythbust on Image Sensors.

View more information on Image Sensors 2013. For conference prices please click here.

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