HIGH DEFINITION EXPLAINED:

High-definition (HD) video refers to any video system of higher resolution than standard-definition (SD) video, most commonly at picture display resolutions of 1280×720 (720p) or 1920×1080 (1080i or 1080p).  The resulting images are of superior quality, well above standard and more appealing to the human eye, as the shades, faces and overall details are more realistic and full depth is achieved in the backgrounds.

High Definition is defining the new era in promotional video in the real estate and vacation markets, offering a richer, top quality display of your real estate for sale or rent. Think of HD aerial video footage of your villa, condo complex or commercial property showing lot area, full 360 bird's eye views of the main home/building/facilities and the horizon beyond... nothing can captivate the eyes of your prospective buyers more than the HD experience. Available for the north coast cities of Cabarete, Cabrera, Cofresi, Sosua and Puerto Plata and nearby locations in between. HQ Digital photography also available in the north coast area.

Technical details

High definition video (prerecorded and broadcast) is defined threefold, by:

• The number of lines in the vertical display resolution. High-definition television (HDTV) resolution is 1080 or 720 lines. In contrast, regular digital television (DTV) is 480 lines (upon which NTSC is based, 480 visible scan lines out of 525) or 576 lines (upon which PAL/SECAM are based, 576 visible scan lines out of 625). However, since HD is broadcast digitally, its introduction sometimes coincides with the introduction of DTV. Additionally, current DVD quality is not high-definition, although the high-definition disc systems Blu-ray Disc and HD DVD are.
• The scanning system: progressive scanning (p) or interlaced scanning (i). Progressive scanning redraws an image frame (all of its lines) when refreshing each image. Interlaced scanning draws the image field every other line or "odd numbered" lines during the first image refresh operation, and then draws the remaining "even numbered" lines during a second refreshing. Interlaced scanning yields greater image resolution if subject is not moving, but loses up to half of the resolution and suffers "combing" artifacts when subject is moving.
• The number of frames per second or fields per second. The 720p60 format is 1280 × 720 pixels, progressive encoding with 60 frames per second (60 Hz). The 1080i50 format is 1920 × 1080 pixels, interlaced encoding with 50 fields per second. Sometimes interlaced fields are called half-frames, but they are not, because two fields of one frame are temporally shifted; video engineers use the term 'picture' instead. Frame pulldown and segmented frames are special techniques that allow transmitting full frames by means of interlaced video stream.

For commercial naming of the product, either the frame rate or the field rate is dropped, e.g. a "1080i television set" label indicates only the image resolution. Often, the rate is inferred from the context, usually assumed to be either 50 or 60, except for 1080p, which denotes 1080p24, 1080p25, and 1080p30, but also 1080p50 and 1080p60 in the future.

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