720 Progressive Scan Hd Images With Higher Resolution Than Interlaced 1080I - Panasonic HVX200A - Camcorder - 1080p Manual Book

1. Types and Differences of HD Video Formats
1-3 720 Progressive Scan HD Images with
Higher Resolution than Interlaced 1080i
Interlace Image
Many TV broadcasteres use the interlaced system, which divides each image into
alternating odd and even horizontal scan lines. For example, in 1080/60i, each field
displays 540 lines, or half of the total number of its 1,080 lines, every 1/60th of a
second. Each field combines with the next field to create a complete frame. This
naturally results in a time lag of 1/60th of a second, and none of the fields contain
the information for a complete image.
If you look closely at a frame taken by a 1080i or 480i interlaced camera, you'll
see blurring in fast-motion parts where the two images overlap. You'll also find
smearing in finely detailed parts because of the relatively low vertical resolution.
Each frame of a progressive image, on the other hand, contains all of the image
information, much like a film frame, because it consists of all of the scanning lines.
In this way, progressive images share more similarity with the images of film
cameras and computer graphics. From the viewpoint of versatility, there is a major
advantage in using progressive scanning for your original images.
The AG-HVX200 features a newly developed native progressive CCD. It produces
naturally high-quality images by capturing frames with complete image information
right from the beginning.
5
Progressive Image