Wiggle Trace displays can show structure and character (within a limited amplitude range) but they lack compactness and their effectiveness diminishes when traces overlap.
|A seismic section contains an
almost limitless amount of information which must be presented to
the viewer visually. Despite all of the advancements in processing
technology, presenting this information in a compact and meaningful
way, remains an outstanding challenge.
The traditional wiggle trace display communicates character and structural information very well. However it lacks compactness and the visual representation is only effective within a narrow range of amplitude. Once traces start to overlap our ability to discern character is dramatically reduced.
In addition, whereas our eyes can become well trained to read wiggle trace displays, they are not natural. A wiggle trace display does not look like anything we would normally see in nature.
With the advent of computer technology, color mapped or variable density displays have come to the forefront. These displays represent seismic using a color scale, with individual samples being colored according to their amplitude.
Although these displays are compact and ideally suited to the limited dimensions of a computer monitor they are not well suited for detecting subtle character changes and are often overlain with a wiggle trace display. In addition, because of their reliance on color mapping, they are not well suited to the large proportion of the population who suffer from any form of color deficiency.
What has been needed for a long time is a new type of display that shows both structural and character information and yet is compact enough to be viewed on a computer monitor. This is SeisScape.
SeisScape is an entirely new and revolutionary display technique that presents seismic data as a three dimensional surface. Users interact with the scene by illuminating it with various light sources, rotating it to various positions and by zooming into it, and all in real time.
SeisScape evolved from a simple question, "if seismic were invented today, how would we display it?" Would we choose to invent the wiggle trace display or would we use the power inherent in modern computers to represent it as a natural scene with sunlit peaks and shaded valleys.
SeisScape does just that. It takes seismic data and presents it to the viewer as a true three dimensional terrain like surface.
Variable Density displays are better suited for computer monitors but are limited in their ability to show character.
SeisScape adds true 3D realism to seismic data. Amplitude is color mapped and then displayed as "Terrain" to produce highly visual real world scenes.
You can view scenes from any angle and interact with them in real time by zooming into the scenes and then flying about them.
Editable light sources produce real world shadow effects. Subtle features can be brought out by simply changing the angle of light source