EBU and BBC testing and considerations

JVC Professional

APRIL 2007

NAB-2007

The ProHD Report

The EBU and BBC testing and considerations:

In 2004, EBU recommended the use of progressive scanning throughout the acquisition and delivery chain. There was one overriding logical fact driving this decision: CCD and CMOS imagers are progressive devices (although we can electrically operate them in interlaced mode) and all future consumer displays will be of native progressive design (rear projection, front projection, plasma, flat LCD etc.) Why throw away temporal resolution and compression efficiency by making the digital intermediate processes and distribution in an interlaced format.

The European desire: Let’s be progressive from glass to glass.

BBC tests concluded that the average home viewing distance in the typical UK home is also about 9 feet. At that viewing distance, with a 50” HD monitor, it was clear in these BBC tests that a 1280x720 image would saturate the human eye with details, thus to increase the acquisition, the delivery resolution and the monitor resolution to 1920x1080 would not increase the perceived resolution by the human eye.

It was noted that if the monitor was significantly larger than 50” at the same viewing distance, or the same 50” monitor at a significantly lesser viewing distance, an entire acquisition delivery chain of 1920x1080p50 would indeed improve the perceived resolution by the human eye, or, to say it differently, prevent the viewer from seeing “lines or pixels” in a 720p chain. Although the European decision is progressive, there are now planned several 1080i services, including BBC. But in the question between 1080p or 720p, the added costs in all areas of acquisition, processing, delivery and display in 1080p are NOT justified at this time, the Europeans conclude.

Your most cost effective local HD news equipment investments will be in the 1280x720p60 format area.

It is clear: About 75% of the US HDTV audience will be watching on 50” displays or smaller, and with a native resolution of 1280x720 (or the related 1366x768), and be 9 feet from the screen as an average, from now through 2010. The long term cost effective HD format choice for HD ENG & news for a TV station is 1280x720p60, even if you are a “1080i TV station”. 720p converts beautifully to 1080i going into master control. The ProHD format is very well suited for great looking, economical HD news from the field.

The TV Station-to-Home Delivery Chain:

The shortest path between two points is a straight line! That says it all. The ATSC delivery over the air directly to the home ATSC receiver (whether STB or built-in) is the highest quality consumer level HD delivery available, bar none.

Not even the emerging HD-DVD and Blue-ray may be as good, with all its multi- generational processing, when compared with a TV stations live HD studio camera shots sent over the air directly to the home viewer’s ATSC HD set.

Page 13 of 43

NAB-2007 specifications

The JVC NAB-2007 is a notable entry in the world of professional broadcasting and production equipment, showcased by JVC at the National Association of Broadcasters (NAB) Show in 2007. This camcorder was designed to meet the demanding needs of videographers and broadcasters, emphasizing high-definition video quality and advanced technology.

One of the standout features of the JVC NAB-2007 is its ability to capture high-definition video in various formats. It supports both 720p and 1080i resolutions, allowing users to choose the format that best fits their production needs. This flexibility has made it a popular choice among filmmakers, event videographers, and news organizations looking for quality in their content creation.

The camcorder utilizes JVC’s advanced HD CMOS technology, which enhances image quality by providing better low-light performance and reducing noise. This is coupled with a powerful optical zoom lens that enables users to capture detailed shots from a distance, making it ideal for dynamic shoots where proximity to the subject may be limited.

Another key feature of the JVC NAB-2007 is its ergonomic design, which is crafted for ease of use during extended shooting sessions. The camera is lightweight yet robust, providing operators with comfort and stability. Additionally, the user interface is intuitive, allowing for quick adjustments to settings without disrupting the workflow.

Built-in stabilization features further enhance the usability of the JVC NAB-2007, ensuring that footage remains smooth even during handheld operation. This is particularly advantageous for documentary shoots or on-the-go filming where traditional stabilization rigs may be impractical.

Connectivity options are expansive on the JVC NAB-2007, including HDMI and component outputs, enabling seamless integration with various editing systems and broadcast environments. The camcorder also includes features for live broadcasting, making it versatile for both recorded and real-time production scenarios.

In summary, the JVC NAB-2007 encapsulates a blend of impressive features, cutting-edge technology, and user-centric design, making it a suitable choice for professionals in the broadcasting and film industries seeking reliable and high-quality performance in their equipment.