Product Concept and Highlights This
exciting new addition to the popular CyberCam line-up, the GR-DVL9000 offers unprecedented
resolution -- 500 lines (horizontal) by 480 lines (vertical)* -- thanks to its progressive
scan CCD, progressive color filter, and high-band processor. All these features in one
unit bring out the full benefits of the DV platform. The resulting quality of both
full-motion video and still images sets a new standard for the industry, fully
complementing the unit's enhanced multimedia connectivity. |
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*In progressive recording mode |
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Four Key Technologies for High Picture Quality JVC
has equipped the GR-DVL9000 with four advanced technologies that make the most of digital
video and offer outstanding resolution: 500 lines (horizontal) by 480 lines (vertical). |
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Progressive Scan CCD |
Virtually all camcorders, analog or digital,
employ the conventional interlace scan system in which only half a frame (a field) is
recorded at a time. This works well for full motion images, but a 1/60-second gap exists
between the processing of each field. Combining two fields results in smooth full-motion
images, but this time gap causes picture blur when paused. To create razor-sharp still
images progressive scan technology is needed. This simply means that an entire frame image
is recorded in one scan. As there is no time gap, there is no picture blur when frame data
is used for stills. This is ideal for playback, and also for printing or capturing still
pictures to your computer. |
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In addition to clear freeze-frame stills, the progressive
scan CCD provides extremely high vertical resolution -- the equivalent of 760,000-pixel
quality* -- when the two fields are combined into a frame-still image. This is because
conventional CCD image sensors combine signals from adjacent scanning lines for
processing, whereas the scanning lines of a progressive scan CCD are processed
individually. |
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*The progressive scan system
outputs images per frame, the equivalent of doubling the vertical resolution of
conventional interlace CCDs which output per field. |
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Progressive Color Filter |
JVC's own progressive complementary color filter
generates a pure signal from each scanning line. Together with the progressive scan CCD,
this approach raises vertical resolution -- a major determinant of picture quality -- to
an impressive 480 lines. Furthermore, the complementary color filter offers greater
sensitivity compared to the RGB filter systems found on other DV cameras. Increased
sensitivity is also provided by the bright, large-aperture F1.2 lens. |
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High-band Processor |
The third key to ensuring first-rate picture
quality is a high-band processor. By restoring the high-band component of the luminance
signal that is removed to avoid interference with the chrominance signal, this expands
horizontal resolution to 500 lines. |
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Spline Interpolation (40x & 200x digital
zoom) |
In addition to the 10x optical zoom, this
CyberCam offers a 40x digital zoom and a 200x Super Digital Zoom. To smooth contours and
ensure high picture quality, both digital zoom modes generate spline interpolation data
from progressive-scan frame images. And since frame signals, not field signals, are
processed, vertical resolution is increased, also improving quality.*
*Note that picture resolution decreases as the zoom ratio increases. |
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High-quality Frame-still
Picture for Printing or Capturing on to a PC |
Progressive recording ensures that you will have
clear, blur-free still images as you record your favorite scenes. The fact that
progressive scan images are recorded as frame data means that high grade frame-still
pictures will be available whether for printing or transfer to computer. With the added
superior sensitivity of the progressive color filter and F1.2 lens, full-motion video and
still images taken by the GR-DVL9000 set a new standard, complementing the unit's enhanced
multimedia connectivity. |
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Bright F1.2 Lens with 10x
Optical Zoom |
The large-aperture lens assures enhanced
sensitivity, so you can shoot scenes with very low noise in low-light conditions. A 10x
optical zoom allows you to shoot your favorite scenes close-up and in detail. |
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Multimedia Connectivity |
As well as connecting to a TV for playback, the
GR-DVL9000 can output digital image data with no loss of image quality. A JLIP terminal
allows direct connection to the 9-pin serial port (RS-232C) of either desktop or laptop
computers (running Microsoft� Windows�). This makes it possible to capture video stills
without the need for a capture board. JLIP (Joint Level Interface Protocol), a
communications protocol developed by JVC, enables computer control of the camcorder
such-as video-to-video editing. The GR-DVL9000 can also output digital image and sound
data via its DV (i.Link, IEEE 1394 compliant) terminal to other equipment with DV input
terminals such as JVC's GV-DT1 digital printer.
Supplied with this digital video camera are all the software (JLIP Video Capture 2.0,
PhotoSuite SE, JLIP Video
Producer 1.1)* and cables needed for capturing and processing video stills as well as
editing video footage.
*For Microsoft� Windows� 95 or 3.1. |
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