30ENRECORDING

AdvancedFeatures(Cont.)

Description of Progressive Scan CCD

Progressive Scan is a special image sensing method which, unlike conventional interlace scanning, is able to pick up all the lines of picture information in one Scan. Since the Progressive Scan CCD is capable of outputting 50 full Frames* per second — twice the amount of conventional systems — it is able to deliver a high quality picture even when its output signal is converted to a format that can be viewed on a TV screen.

* A PAL TV screen image is composed of 25 Frames per second. 1 Frame is made up of 2 Fields.

1. Regular shooting of moving images

1 Frame

Scan A

 

Scan B

 

 

 

 

 

 

Records 25 odd and 25 even image Fields, for a total of 50 per second. Since there is a time lag between an odd and even Field, when they are combined to make 1 Frame the part of the image that is moving appears as image jitter. However, during normal playback, the moving picture looks smooth and natural.

Odd-number Field

Even-number Field

2.Progressive mode shooting of moving images (Progressive Video Recording pg. 44)

Scan A

Scan B

Scan C

Skip

Scan D

Skip

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Odd-number Even-number

 

Odd-number Even-number

 

 

 

 

 

 

 

 

 

 

 

 

 

Field

Field

 

Field

Field

25 Frames per second

Scan A is recorded, divided into an odd- and even-number Field, and then Scan B is skipped. Scans C and D are handled in the same way as Scans A and B, as illustrated above, thereby recording 25 Frames per second.

Since each recorded odd- and even-number Field originates from the same Scan there is no time lag between them, and so when they are combined into a Frame and a still image is displayed on a TV or PC monitor the picture does not look jittery. However, when moving images are played back, the picture can look unnatural.

3. Pro Snapshot recording (pg. 28)

When the Progressive button is pressed, the current frame will be recorded for about 6 seconds in the Progressive mode (except when a Multiple picture mode is being used).

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JVC GR-DVL9000 manual Description of Progressive Scan CCD, Frame

GR-DVL9000 specifications

The JVC GR-DVL9000 is a standout product in the realm of digital camcorders, showcasing a blend of advanced technology and user-friendly features. Released as part of JVC's line of DV camcorders, it quickly gained popularity among consumers seeking high-quality video recording without compromising on style and functionality.

At the heart of the GR-DVL9000 is its impressive 1/4-inch CCD sensor, which delivers a resolution of 800,000 pixels. This sensor ensures that the camcorder captures vibrant colors and sharp details, allowing users to record their precious moments in stunning clarity. Its capability to offer a 16:9 aspect ratio enhances the cinematic experience, making it particularly appealing for filmmakers and enthusiasts looking to achieve a more professional look in their videos.

The GR-DVL9000 employs JVC's advanced DV format, which offers superior video quality compared to traditional analog formats. This digital advantage is further amplified with the incorporation of 3D Digital Noise Reduction technology, ensuring clean and smooth playback, even in low-light conditions. The camcorder also supports a range of recording modes, allowing flexibility for various shooting environments, whether indoors or outdoors.

One of the key characteristics of the GR-DVL9000 is its user-centric design. The camcorder features an easy-to-navigate menu system and an ergonomic grip that enhances comfort during prolonged use. The large 3.5-inch LCD screen provides real-time feedback, making it easy to frame shots accurately and review recordings without straining the eyes.

Additionally, the GR-DVL9000 includes a 20x optical zoom lens, enabling users to get close to the action without sacrificing image quality. This is particularly useful for nature documentaries, sports events, or any scenario where capturing distant subjects is vital.

Connectivity options are also a highlight of this device. The camcorder includes both FireWire (IEEE 1394) and USB ports, allowing for seamless transfer of videos to computers for editing and archiving. This ease of connectivity underscores the GR-DVL9000’s suitability for both casual users and those who take their videography seriously.

In conclusion, the JVC GR-DVL9000 stands out with its combination of a strong CCD sensor, advanced digital recording capabilities, user-friendly design, and robust connectivity options. Whether for personal use or professional projects, it remains a compelling choice among digital camcorders, epitomizing JVC's commitment to quality and innovation in videography.