pixels and pictures
Follow
Find tag "4K"
8.1K views | +0 today
pixels and pictures
Exploring the digital imaging chain from sensors to brains
Your new post is loading...
Your new post is loading...
Scooped by Philippe J DEWOST
Scoop.it!

Welcome to Faroudja Enterprises

Welcome to Faroudja Enterprises | pixels and pictures | Scoop.it

The Faroudja Enterprises founders have realized that their experience in video technology is applicable to video  compression.  The company designs pre-processors and post-processors, used before and after compression coding/decoding, to achieve a lower bit rate and better image quality with existing codecs.

 

THE COMPANY DOES NOT PERFORM COMPRESSION CODING OR DECODING.  THE COMPANY DESIGNS

PRE-PROCESSORS TO BE USED BEFORE COMPRESSION CODING, AND POST-PROCESSORS TO BE USED

AFTER DECODING.

 

A better image quality at the same bit rate may be chosen, or if desirable, a 35% to 50% bit rate reduction for the same image quality as before may be obtained.  In any case, compression artifacts are reduced or eliminated.

 

Significant results have already been achieved:  2 patents have been granted, and 3 more are in the works.  The processes are suited to a wide range of video, from teleconferencing and videophones, to Standard Definition, High Definition and Ultra High Definition applications.

Philippe J DEWOST's insight:

Absolutely delighted to see that Yves Faroudja is back in the video game with a new venture. I have the deepest respect for him and know how he regrets having missed the opportunity to invest in imsense :-)

more...
No comment yet.
Scooped by Philippe J DEWOST
Scoop.it!

Smallest 4K camera captures 21 frames per second –

Smallest 4K camera captures 21 frames per second – | pixels and pictures | Scoop.it

A new tiny camera captures better-than-HD video. The latest device from Point Grey is an “in an ice-cube sized, low-cost package,” says the British Columbia-base industrial camera maker.
The FL3-U3-88S2C captures 4,096 x 2,160 video with an 8.8 megapixel Sony IMX1221 Exmor R sensor. “The impressive 4K2K resolution combined with the ease of USB 3.0 and the camera’s small size makes the new Flea3 suitable for a variety of high resolution color applications including automatic optical inspection, ophthalmology, interactive multimedia, and broadcast,” the company says.
The Flea3 camera measures 29 x 29 x 30mm, and uses USB 3 connectivity. It is $945.

more...
No comment yet.
Scooped by Philippe J DEWOST
Scoop.it!

Who needs a television four times sharper than HDTV?

Who needs a television four times sharper than HDTV? | pixels and pictures | Scoop.it

At the recent Consumer Electronics Show in Las Vegas, talk of Ultra HD was on everyone’s lips. A handful of Ultra HD sets were even on display. No question, Ultra HD provides stunning images—at least when displaying content created in the new “4K” video format. Unfortunately, 4K content is virtually non-existent.

So far, only a handful of feature films have been shot with cameras capable of 4K, including “The Amazing Spider-Man”, “Prometheus” and “The Girl With the Dragon Tattoo”. That is hardly surprising given the amount of work involved. Insiders reckon making a full-length digital feature in 4K is equivalent to producing six ordinary 2K films.

Even so, some 17,000 cinemas around the world now have digital projectors capable of showing 4K films. So, if and when Hollywood upgrades wholesale to the new video standard, cinema-goers will be able to decide whether 4K is worth the premium they are bound to be charged.

The recent flood of 3D films largely failed that test. The lacklustre sales of 3D television sets suggest they are now doing the same. Will 4K suffer the same fate? It is far too early to say. But, for sure, 4K television—far more than 4K cinema—faces some formidable challenges.

Philippe J DEWOST's insight:

It's all about size and bandwith

more...
Mark Jefford-Baker's comment, January 22, 2013 6:28 AM
Some of us need HD reading glasses first
Scooped by Philippe J DEWOST
Scoop.it!

Canon debuts second-gen “Cinema” 4K cameras

Canon debuts second-gen “Cinema” 4K cameras | pixels and pictures | Scoop.it
Two new Canon cameras capture “4K” video — 4096 by 2160 resolution motion imagery that is “emerging as the new standard for advanced effects and post-production in Hollywood,” Canon says. “It is particularly important for big-budget motion pictures that include scenes compositing live-action cinematography with high-resolution computer-generated imagery.”

The EOS-1D C is an SLR camera providing video recording at 4K, as well as Full HD video, and 18-megapixel stills, using a full-frame 24 by 36mm CMOS sensor. 4K video is captured by an approximately APS-H-sized portion of the full image sensor.

The camera records 8-bit 4:2:2 Motion JPEG 4K video to dual CF cards. It has an expanded sensitivity range up to ISO 25600 “for exceptional motion-imaging results with reduced noise even in low-light settings.”

Also, Canon says its Log Gamma enables high-quality video “with rich gradation expression, making possible the type of impressive image quality required in motion pictures by maximizing both highlight and shadow detail retention while also providing a high level of color-grading freedom.”
The 1D C has a headphone jack for audio monitoring, and will be available this year for $15,000.
more...
No comment yet.