Overview of Virtual Home Tours
Virtual home tours offer buyers the opportunity to experience multiple properties in three-dimensions at a distance.
Humans interact with machines in various ways. Even just viewing
a calculator screen and typing on a keyboard is one such interaction.
However, human-computer interactions only qualify as synthetic reality when
they are immersive, engaged and smart in nature. Virtual
reality is an 3D engaging computer-simulated biosphere within which humans
interact with computer-generated things in a fashion governed by sufficient
computer reasoning that the interaction seems realistic.
A virtual reality surroundings must engross important human senses with enough accuracy to give participating humans a sense of being in a real setting. With the limits and norms of current technology, this commonly entails image projects that span a sizable portion of the human discipline of vision with reasonable clarity, high-fidelity three-dimensional sound, and human-computer interaction grounded on head and hand position, movement, and configuration that updates more than fifty times per second. More comprehensive haptic interaction that engages movement of the rest of the body and engages senses various than sight, hearing, and touch are regularly above today’s minimum criteria for virtual reality. These evolved functions could, on the other hand, become normal for virtual reality in the future.
To qualify as virtual reality, items within the computer-simulated environment should furthermore conform with reasonable reliability integrity to the physical and living laws that apply to their real counterparts. This is necessary for the computer-simulated elements to appear real to the higher-order functions of the human brain, not just lower-level observation. It is not sufficient for a cube to just look like a cube, it must additionally behave like a cube with respect to the conservation of substance, gravity, momentum, and various material laws. This becomes more ambitious with more complex physical or even organic elements within a computer-generated environment. Simulating an organism is more difficult than simulating a cube.
There are three categories of artificial reality based on the relative mix of computer-generated vs. real-world elements:
Category #1: Pure Virtual Reality – is a surrounding virtual environment composed completely of computer-simulated elements with the exception of the participating humans. The seeming form of the participating human could even be transformed in nature. In the purest form of category #1 virtual reality, the participating human interacts just with the calculator, not with other humans or real elements.
Category #2: Mixed Virtual Reality, sometimes abbreviated as “Mixed Reality” or termed “Augmented Reality, is either: a real-world environment with substantive superimposed and engaged synthetic elements; or a computer-simulated environment with substantive superimposed and two-way real elements other than the participating humans. Mixed reality environments may consist of merely a few synthetic elements, but these elements should be realistic and cognitively significant for the human participant.
As examples of category #2 synthetic reality, fighter pilots may view
computer-generated maps superimposed on the skyspace or ground. Also,
surgeons will likely function surgery with computerized medical pictures of interior
body forms superimposed on the patient's body. Other mixed reality
applications might be primarily synthetic with few real elements. For
example, a data processor screen will generally illustrate (and make feasible rudimentary control from)
the motion of a human hand via an instrumented glove. Mixed
reality surroundings must have proper alignment of the real and virtual
elements and additionally quick responses to avoid dysfunctional temporal lags
and spatial gaps.
Category #3. Telepresence Virtual Reality – is the application of virtual reality innovation to enable humans to be in one real-world location and yet function as if they were in a second, remote real-world location. Telepresence differs from pure or mixed reality in that the simulated reality may be transparent to the participating human. Virtual reality becomes a means, not an end. It serves as a way to “be” in a different area without traveling there. The participating human merely consciously interacts with real world surroundings. Category #3 simulated reality is useful for teleconferencing, telemedicine, virtual vacations, simulated home tours, and charting of dangerous environments (underwater, space discovery, and so forth.).
The strictest definition of simulated reality incorporates merely Category #1 applications. The broadest definition encompasses Category #2 and Category #3 uses as well.
In order be truly enveloping, the imaging piece of a synthetic reality system must assemble the vision of thickness and three-dimensionality. Depth observation can be accomplished using one or more of the following three methods.
The first method to convey three-dimensional perception is founded on the geometry of an object’s corners. An object’s outer edges form its outline. When an object’s outline overlaps over that of a second object, then it is perceived as closer than the second thing. Also, if the outline is more massive than that of a second item believed to be of similar actual scale, then it is seen as nearer than the second thing. Finally, when an object moves a greater distance in reaction to head movement than alternative items or the background ecology, then it is perceived as nearer.
An object’s inner lines may convey three-dimensional orientation and rotation. When distances between inner lines are shrinking, then this suggests that these surfaces are being seen at an increasing-acute angle and “moving away”. When the distances between inner edges are swelling, then this suggests that these surfaces are moving closer to a right angle view and “moving closer”. Thus, an object with inner lines shrinking on one half and increasing on the alternative half appears to rotate in three-dimensions. Early three-dimensional graphics used such effects to construct “wire” figures that appeared to rotate in three dimensions. Three-dimensional illustrations are much more sophisticated now, but the geometry of item boundaries is still core to volume vision.
The second technique to deliver three-dimensional visualization of objects deals with their surfaces. Surface texture, shading, and reflected lighting provide significant signals for three-dimensional comprehension. Two-dimensional texture gradients are applied to surfaces in a process called “texture mapping.” These surfaces will generally then be shaded and enhanced with reflected light to further refine depth vision. Humans are most familiar with objects lit from an isolated beam source above, so shading and light reflection constructed on an overhead beam source gives strong cues for extent observation. One of the more ambitious procedures of lighting virtual things depends on tracing the tracks of particular illumination rays as they are reflected and refracted from the objects. This is called “ray tracing.”
The third method for three-dimensional visualization uses parallax vision. Your two eyes view things from two different angles. Even though your two eyes watch two unique pictures, they work together and your brain merges the two pictures into an isolated vision with thickness observation. The muscles in each eye adjust the place of the eyes to form a single image of the thing – called axial convergence. Also, the lenses in each eye change structure to focus at the distance of the thing – called accommodation. Realistically simulating parallax vision in artificial reality is challenging. How will generally one produce the eyes observe two different images? How far away should the visions be? If the images are too far away, then the screen could be too minuscule to fill the right amount of of the field of vision. If the screen is too near, then muscles that achieve axial combination and accommodation could fight with each alternative.
Shutter glasses are one way to present diverse visions to the eyes. These goggles first block the illustration to one eye and then to the various eye, in synchronization with two distinct views alternatively shown on a screen. When the alternating perspective photos are displayed in sufficiently quick succession, then the brain joins them into a single three-dimensional photo. Head Mounted Displays (HMDs) frequently include some specification of shutter lenses within a helmet and illustration displays that are relatively close to the eyes. The near illustration illustrates make it easier to span a huge portion of the subject of vision (e.g. over 60 degrees), but requires very high-resolution photo-rendering. The helmet might be: physically attached to an armature for tracking head motion; or physically unconnected with head motion tracked by optical, magnetic, or ultrasonic sensors.
Most virtual reality illustration illustrate systems result in conflict between axial convergence because the stereoscopic render does not variation the focal plane. Lags in visual photo processes will likely additionally make conflict between movement sensed by the semicircular ear canals and action sensed by vision. These conflicts will likely result in eye fatigue, disorientation, and sickness. The extent of these problems is affected by age, gender, and other factors. These problems will generally be reduced by incrementally exposing people to virtual reality, starting with very brief sessions and then working up to longer sessions.
Interaction between humans and computers based on sound is another key element of artificial reality. Fortunately, forming a realistic sound ecology builds on fewer technological barriers than simulating three-dimensional visions or realistic touch-based interaction. A good surround-sound audio system can give high quality computer-to-human sound transmission to accompany objects and events in artificial reality. For sophisticated applications, “aural ray tracing” will likely be used to simulate the effects of multiple interactions between sounds and surfaces in the virtual ecology.
The predominant form of sound-based communication from humans to computers is speech recognition. Speech recognition innovation has made considerable progress independently of artificial reality. Application of advance speech recognition systems to simulated reality greatly enhances the breadth and realism of the human-computer interaction.
Although artificial reality may be applied in numerous ways, entertainment was one of the first applications and still tops the list. The immersive and two-way attributes of VR make it a natural for simulated computer gaming. In the coming decade, revolutionary simulated amusement (“virtainment”) applications will come from hybrid combinations of data processor game playing, internet access, and television. These uses will generally be centrally synchronous, multi-user, engaged, and three-dimensional entertainment experiences. There remains social value of physically gathering in one place, so there will still be a role for videos in the world of virtainment. Virtual films (“virties”) will go far beyond 3D effects with polarized lens goggles; they will incorporate realistic three-dimensional visions and multi-sensory audience participation.
Analysis of intricate multivariate files research will generally be done with numbers supplemented by two-dimensional images. However, application of simulated reality to information investigation unlocks up a whole recent world of “virtualization” with three-dimensional visual and contact-based interaction between humans and data. Three-dimensional projects and touch-based manipulation of data facilitate humans to more easily understand and analyze multi-dimensional data and intricate experimental designs. Applications incorporate research of three-dimensional physical areas and flows, exploratory study of multivariate relationships and causation, and different complicated systems. Related PhotoModeler.
Virtual reality is furthermore a high performance machine for three-dimensional creation. Design is central to engineering, new product design and modeling, architecture and construction, biotechnology and nanopharmacology, chemistry and molecular modeling, health care and bionics, the clothing industry, the fine arts, and other areas as well. With synthetic reality and a better haptic interface, humans may use artificial reality: to direct three-dimensional models of micro-scale materials or biologic configurations; to compile electronics; to sculpt “virtual clay” into forms for aesthetic or functional purposes; and for most different design applications. When original product prototypes are both designed and tested virtually, then the total product development cycle is sped up.
During the last five years there has been colossal progress in the use of artificial reality invention for medical diagnosis, treatment, schooling, and investigation. Virtual tomography joins three-dimensional imaging internal body design from multiple CT or MRI scans with a simulated haptic interface to aid in medical diagnosis and elimination. In endovascular simulation, a head mounted visualize superimposes three-dimensional scans on a patient’s body to guide the placement of catheters, balloons, and stents within blood vessels.
Virtual reality may additionally support surgeons to superior identify the borders of malignant tissue and extract it from surrounding healthy tissue. VR-guided medibots enable microsurgery on a much more miniature scale and with greater refinement than is possible with unaided manual surgery. The largescale movement of the robotic controls by a surgeon is downscaled to microscale movements of the robotic components within the patient.
Virtual reality is furthermore used for cognitive and neurological treatments. Psychologists are using simulated reality to treat phobias by incrementally exposing patients to feared objects or situations in a controlled, virtual-reality setting. This helps patients to develop psychological control and overcome their fears. The debilitating effects of chronic pain can be lessened by periodic being surrounded in artificial reality. The virtual reality experience brings relief by taking attention away from the pain.
Virtual reality may improve people with neurological damage to regain the ability to function simple activities by retraining damaged brain locations or helping patients to learn to use new areas. Virtual reality can also prepare people with sensory impairments for transportation in a new setting by first exposing them to a simulated (e.g. sonic and haptic) layout of that setting.
Virtual reality is useful for healing education and study as well as practice. With the aid of synthetic visual and haptic systems, surgical education robots simulate the look, feel, and response of real patients for physicians who are knowledge how to diagnose conditions and perform procedures. Sophisticated haptic systems enable physicians-in-training to have their hands follow the recorded hand action of an expert to learn the expert’s technique. Medical schools may form collections of virtual patients with unusual conditions that health-related students might not otherwise watch “first hand.” In the area of health-related investigation, virtual reality is used molecular modeling, drug discovery, genomics, and other virtual biology products and services.
Virtually-enabled telerobotics is used in to facilitate humans to perform activities in hazardous settings such as: outer space; locations with chemical or life science hazards; battlefields; oil subjects; and the ocean depths. Virtually-enabled robotics is also useful for large-scale jobs (such as mining, landscaping, and architecture) and small-scale activities (such as microsurgery, nanomanfacturing, genetic engineering and simulated biology). Virbots are used for cyberspace products and services.
Commerce is another area which is ripe for expanded practical usage of virtual reality. Expectations for computing commerce go ahead of the business reality during the dotcom craze at the turn of the millenia, but the reality of integrated circuit transactions is now catching up to expectations. The internet is transforming search and trade in investment, transportation, real estate, accommodations, automobiles, fabric and other consumer goods. With continuing reductions in the cost of computing power, virtual trade will grow in scale, envelopment and interactivity.
If consumer and investor behavior has been dramatically changed by human interaction with machines just based on screens, keyboards and mouse clicks, imagine the transformation that will come from enveloping and interactive virtual business. Shoppers of the future might use simulated reality to see how fabric "fits" or "appears" on them. Investors of the future may view multi-dimensional stock and commodity charts. eCommerce may be just the commencing of a novel era of global virtual commerce.
Virtual Reality is being used extensively for aircraft guidance. The most prominent products and services are VR systems for pilots that superimpose images of maps, navigational illustrations, or focusing material on the sky, other aeronautical or the ground from a Head Mounted Display (HMD). Although air traffic controllers deal constantly with three-dimensional situations, VR usages to air traffic control systems are not broad. Also in the aerospace domain, but not travel per se, artificial reality is used extensively for flight practice.
Computer-assisted transportation for automobiles is much less sophisticated than that for flight. Few automobile systems use VR invention at this time, but this could variation with increased data processor power and use of high science in land vehicles.
Virtual cartography and the related discipline of virtual topography include three-dimensional artificial maps with two-way contour lines or colors representing alternative geological or topographic characteristics. Virtual cartography is useful for construction, landscaping, mining and energy charting, and real estate applications.
In addition to its use in guidance of fighter planes and ships, virtual reality has numerous capacity military usages including telerobotics for rationality or (eventually) combat operations in poisonous locations. VR-based simulations are also useful for practice for combat situations and anti-terrorism scenarios.
Virtual home tours, and simulated real estate tours in general, are taking off as a popular way to demand real estate through the network. Physical open houses are labor intensive for the realtor, displace the family living in the home, depend on the vagaries of the weather, and are difficult for promise buyers from out-of-town. Virtual real estate tours enable prospective buyers to view property from the comfort of their home, with little incremental effort for the realtor or inconvenience for the seller. Another plus for artificial tours is safety. Realtors do not have to worry related to trying to monitor various people who may wander through alternative areas during a physical open house. On the other hand, it is significant to pay attention to how much detail of security systems and valuables arises on artificial tours.
Although the vast majority of artificial home tours are not yet immersive or genuinely three-dimensional virtual reality, their progress is impressive and it is probable that genuinely surrounding and three-dimensional real estate tours for both the commercial and residential property will be developed during the next five years. For more Supercomputing Institute: Scientific Visualization and Graphics.
There is additionally huge potential for the use (and abuse) of virtual reality to the arena of human links. There are many venues of artificial human associations, but one form that is growing by leaps and bounds is simulated dating. The positives of artificial dating include: transcending geographic lines to connect with people in different states or approximately the world (particularly useful to find various people who share specialized or unusual interests); focusing on words and thoughts (which may be lost in the hustle and bustle of loud, visually-oriented bars and clubs); convenience, time management, and date screening techniques which simply do not exist in the real world. However, there are potential negatives as well. Identity deception with bad intent remains a problem with online interactions. Then too, it is not uncommon to have a disappointing reality shock when you meet someone in person after having gotten to know them online.
Virtual dating currently is founded on usual web connect with techniques such as keyboard, mouse, screen, video, etc. With increased use of genuinely 3D engaging, engaged artificial reality for true Virtual Reality Dating (VR Dating), then the above positives will be further more advanced and at least one negative (the reality shock) should be lessened. However, sadly, practical usage of more-developed VR technology to dating will need even greater caution with respect to possible identity deception.
Virtual reality is being used for multiple schooling applications. Two of the the majority of prominent uses are: advanced simulation practice; and virtual schooling as distance education programs mature with more advanced VR technology. Virtual reality is already being used for to train physicians, aircraft pilots, soldiers, and people in different professions. With respect to distance training, the virtual instruction revolution is already underway. Distance training that started with rudimentary text and illustration exchange, is emerging into educational programs that attract the mind immersively and interactively through many senses. Although three-dimensional (holographic) virtual professors do not yet lecture approximately the globe, that day might come in the not-so-distant future.
Virtual Reality is already a multi-billion-dollar area with applications in entertainment, data investigation, development, health care, robotics, transactions, navigation, military, real estate, transportation, dating, games and schooling. Several forces are predicted to further push growth in rudimentary VR technology and enlarge its utilization to these and different industries. Evolutionary and revolutionary (e.g. nanocomputing, holocomputing, life science and quantum computing) advances in computing power will improve the quality and decrease the resource of simulated reality systems available to businesses and the general population. Breakthroughs in computer-assisted sight and computer-neural connectivity will likely lead to next-generation imaging systems without shutter spectacles and accompanying sickness. Progress in the field of telerobotics will increase the demand for high-quality VR-based interfaces for human operators.
It is sobering to reflect on the expectations concerning the internet that far outpaced financial realities during the dotcom boom approximately the turn of the millennia. In like fashion, some of the promise for virtual reality which we have discussed above might lag or fizzle. However, humans commonly have a strong desire to control and configuration their environment and artificial reality is a powerful implement toward that ends. Accordingly, it is a good bet that artificial reality and its uses will continue to grow rapidly in both dimension and scope during the coming decade.
Inquiries about this material and the domain VirtualHome.info may be sent to:
copy 2005 by VirtualHome.info