Stereoscopic depth perception is based on binocular disparities. Although neurons in primary visual cortex (V1) are selective for binocular disparity, their responses do not explicitly code perceived depth. The stereoscopic pathway must therefore include additional processing beyond V1. We used functional magnetic resonance imaging (fMRI) to examine stereo processing in V1 and other areas of visual cortex. We created stereoscopic stimuli that portrayed two planes of dots in depth, placed symmetrically about the plane of fixation, or else asymmetrically with both planes either nearer or farther than fixation. The interplane disparity was varied parametrically to determine the stereoacuity threshold (the smallest detectable disparity) and the upper depth limit (largest detectable disparity). fMRI was then used to quantify cortical activity across the entire range of detectable interplane disparities. Measured cortical activity covaried with psychophysical measures of stereoscopic depth perception.
Once you have both handy, perform these steps to test your depth perception: Repeat this process a few times to see if your results change or stay consistent. adj., adj percep´tive. noun. A depth perception test removes some of these cues to measure vision and brain function. Depth perception Depth perception is the visual ability to perceive the world in three dimensions and the distance of an object. 10.5, is to hold your index fingers pointing upward in front of the patient at eye level, one finger closer to the patient than the other. I went through the exact same thing a few months ago. A simple tool called the Randot Stereo Test may be used in the optometry office as a quick measure of depth perception. Our perception test shows that your eyes see more than those of the average person. adj., adj percep´tive. These tests also measure monocular depth perception, or how you see the world when looking with only one eye. When both eyes are both focusing on the same object, each eye sees it ...
We explore the relative utility of shape from shading and binocular disparity for depth perception. Ray-traced images either featured a smooth surface illuminated from above (shading-only) or were defined by small dots (disparity-only). Observers judged which of a pair of smoothly curved convex objects had most depth. The shading cue was around half as reliable as the rich disparity information for depth discrimination. Shading- and disparity-defined cues where combined by placing dots in the stimulus image, superimposed upon the shaded surface, resulting in veridical shading and binocular disparity. Independently varying the depth delivered by each channel allowed creation of conflicting disparity-defined and shading-defined depth. We manipulated the reliability of the disparity information by adding disparity noise. As noise levels in the disparity channel were increased, perceived depths and variances shifted toward those of the now more reliable shading cue. Several different models of cue ...
The identification of brain regions that are associated with the conscious perception of visual stimuli is a major goal in neuroscience. Here we present a test of whether the signals on neurons in cortical area V1 correspond directly to our conscious perception of binocular stereoscopic depth. Depth perception requires that image features on one retina are first matched with appropriate features on the other retina. The mechanisms that perform this matching can be examined by using random-dot stereograms, in which the left and right eyes view randomly positioned but binocularly correlated dots. We exploit the fact that anticorrelated random-dot stereograms (in which dots in one eye are matched geometrically to dots of the opposite contrast in the other eye) do not give rise to the perception of depth because the matching process does not find a consistent solution. Anti-correlated random-dot stereograms contain binocular features that could excite neurons that have not solved the correspondence problem.
Testing after his playing days revealed that Babe Ruth had terrible vision in one eye (he claimed never to have had an eye exam before. have noted that it involves more than simply stereopsis, the term for how the eyes work together to.. Referral for a comprehensive eye examination is recommended when vision is 20/40 or worse for those younger than five years of age and the eye care specialist diagnoses Amblyopia when. programs to test color vision, stereopsis and.. Eye care services at Lake Mary Eye Care include eye exams, surgical and non- surgical eye care, contact lens fitment and more. eye), Convergence Insufficiency (near vision disorder), Diplopia (double vision), Lack of Stereopsis ( two-eyed depth perception), and Strabismus (cross-eyed, wandering eye, eye turns, etc.).. What is 3D Stereo Vision? Binocular Depth Perception? Stereoscopic Vision? Stereopsis? Benefits of Stereoscopic Vision..Lazy Eye?. In contrast to the more traditional methods for examination of stereopsis, the two ...
TY - JOUR. T1 - The Influence of Instrument Length Calibration on Laparoscopic Depth Perception. T2 - A Randomised Controlled Trial. AU - Riaz, Mohammad K.. AU - Tang, Manhon. AU - Tang, Benjie. AU - Alijani, Afshin. PY - 2018. Y1 - 2018. N2 - Aim: Laparoscopic task performance relies on the interpretation of 2-D visual image with deteriorating depth perception. This study aims to investigate the impact of laparoscopic instrument length calibration on the depth perception through a randomised controlled trial.Methods: Twenty medical students were randomised into two groups (scale and control). Studied instrument was calibrated with scale markings, 10 mm apart from instrument tip. Predesigned sheet (10 cm diameter) inside an endotrainer box was marked at 8 peripheral clockwise points. Total distance from the centre of sheet to any of these clockwise points was 10 cm. This distance was concealed from candidates. Instructions were provided to mark the sheet eight times at target distance (TD) from ...
In an automotive contact analog head-up display (cHUD), virtual information can be presented in augmented reality manner in the drivers primary field of view, minimizing mental transformation effort for the driver. Whether virtual information in the cHUD is really perceived at the correct location in the environment depends on several factors such as the technological specifications of the cHUD, the design of the virtual information or environmental conditions. One possibility to realize a cHUD is to implement an upright virtual image in a distance at which human depth perception is supposed to rely on monocular depth cues only (, 6m). So far it has not been investigated whether this technology succeeds at conveying the correct spatial impression of the virtual information to the driver. In the current study, we investigated whether depth perception of lying navigation arrows in a cHUD with a fixed virtual image distance of 10m was influenced by (a) whether the arrow was overlaid on the road ...
Sports fans have come to expect some of the extras they see on their TV screen, such as the yellow lines that appear on a football field to highlight where the ball needs to go for a first down. Augmented reality, or AR, is used to superimpose computer-generated virtual objects on our view of the real world. With support from the National Science Foundation, Mississippi State University (MSU) researchers are working to improve depth perception in the augmented reality environment. One challenge is aligning an object in the real word so that it precisely lines up with virtual objects. Accurate depth perception is critical to medical and military applications of augmented reality.
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I had a weird misconception about stereoscopic vision when I was younger, which is that without it the world is some sort of crazy Picassoland devoid of perspective and 3-dimensional space. I was so confused as a kid after wandering around with one eye closed to find that everything looked dissapointingly similar. This in turn led me to think that maybe I was different, maybe I didnt have correct stereoscopic vision and other strange conclusions. It wasnt until I was randomly forced to spend a couple days with only one contact in rather than both that started to notice differences. It doesnt really affect perception much at all, but processing tasks (as many who cannot see stereoscopically have commented already). Anything that requires you to unconsciously and quickly calculate distance is impossibly harder. To me the difference is closer to comparing a pro athlete with an amateur ...
The image formed on the retina of a single eye contains no information about the distance of objects. After all, a retina image is a two-dimensional projection of the outside world. Nevertheless, even with the use of one eye, conclusions can be made about distance based upon perspective: the angle at which objects of known size are observed and the partial masking of distant objects by objects that are closer to us. The fact that our spatial awareness hardly changes when we use only one eye is the best proof of the effectiveness of this capability.. However, to determine very small relative distance differences, people are dependent on the use of information derived from two eyes. Stereopsis, also known as stereoscopic depth perception or binocular parallax, is the ability of both eyes to see the same object as one image and to create a perception of depth. This parallax is a direct consequence of the fact that our eyes perceive the world from slightly different positions. Objects that are at ...
Desktop 3D displays vary in their optical design and this results in a significant variation in the way in which stereo images are physically displayed on different 3D displays. When precise depth judgements need to be made these differences may become critical to task performance. Applications where this is a particular issue include medical imaging, geoscience and scientific visualization. We investigate perceived depth thresholds for four classes of desktop 3D display; full resolution, row interleaved, column interleaved and colour-column interleaved. Given the same input image resolution we calculate the physical view resolution for each class of display to geometrically predict its minimum perceived depth threshold. To verify our geometric predictions we present the design of a task where viewers are required to judge which of two neighboring squares lies in front of the other. We report results from a trial using this task where participants are randomly asked to judge whether they can ...
A stereoscope required a special kind of dual photograph or stereo-pair painting. A number of artists, including Salvador Dali, created exceptional stereo-pair paintings for the stereoscope.. Around 1849-1850, David Brewster, a Scottish scientist, improved the Wheatstone stereoscope by using lenses instead of mirrors, thus reducing the size of the contraption. Brewster also noticed that staring at repeated patterns in wallpapers could trick the brain into matching pairs of them and thus causing the brain to perceive a virtual plane behind the walls. This is the basis of single-image wallpaper stereograms.. In 1959, Dr. Bela Julesz, a vision scientist, psychologist, and MacArthur Fellow, discovered the random-dot stereogram while working at Bell Laboratories on recognizing camouflaged objects from aerial pictures taken by spy planes. Dr. Julesz also invented the autostereogram as a definitive test of Binocular Depth perception. At the time, many vision scientists still thought that depth ...
Stereopsis recovery, also recovery from stereoblindness, is the phenomenon of a stereoblind person gaining partial or full ability of stereo vision (stereopsis). Recovering stereo vision as far as possible has long been established as an approach to the therapeutic treatment of stereoblind patients. Treatment aims to recover stereo vision in very young children, as well as in patients who had acquired but lost their ability for stereopsis due to a medical condition. In contrast, this aim has normally not been present in the treatment of those who missed out on learning stereopsis during their first few years of life. In fact, the acquisition of binocular and stereo vision was long thought to be impossible unless the person acquired this skill during a critical period in infancy and early childhood. This hypothesis normally went unquestioned and has formed the basis for the therapeutic approaches to binocular disorders for decades. It has been put in doubt in recent years. In particular since ...
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There has been no direct examination of stereoscopic depth perception at very large observation distances and depths. We measured perceptions of depth magnitude at distances where it is frequently reported without evidence that stereopsis is non-functional. We adapted methods pioneered at distances up to 9 m by R. S. Allison, B. J. Gillam, and E. Vecellio (2009) for use in a 381-m-long railway tunnel. Pairs of Light Emitting Diode (LED) targets were presented either in complete darkness or with the environment lit as far as the nearest LED (the observation distance). We found that binocular, but not monocular, estimates of the depth between pairs of LEDs increased with their physical depths up to the maximum depth separation tested (248 m). Binocular estimates of depth were much larger with a lit foreground than in darkness and increased as the observation distance increased from 20 to 40 m, indicating that binocular disparity can be scaled for much larger distances than previously realized. Since these
TY - JOUR. T1 - Grasping in Depth Shows the Same Biases as Depth Perception. AU - Kopiske, Karl. AU - Bozzacchi, Chiara. AU - Volcic, Robert. AU - Domini, Fulvio. PY - 2019/4. Y1 - 2019/4. M3 - Meeting Abstract. VL - 48. SP - 171. EP - 171. JO - Perception. JF - Perception. SN - 0301-0066. ER - ...
Depth perception is the visual ability to perceive the world in three dimensions and the distance of an object. Depth sensation is the corresponding term for
Stereopsis (from the Greek στερεο- stereo- meaning solid, and ὄψις opsis, appearance, sight) is a term that is most often used to refer to the perception of depth and 3-dimensional structure obtained on the basis of visual information deriving from two eyes by individuals with normally developed binocular vision. Because the eyes of humans, and many animals, are located at different lateral positions on the head, binocular vision results in two slightly different images projected to the retinas of the eyes. The differences are mainly in the relative horizontal position of objects in the two images. These positional differences are referred to as horizontal disparities or, more generally, binocular disparities. Disparities are processed in the visual cortex of the brain to yield depth perception. While binocular disparities are naturally present when viewing a real 3-dimensional scene with two eyes, they can also be simulated by artificially presenting two different images ...
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New Tests to Screen Young Children Add to Extensive Product Line. Dallas, TX, Essilor Instruments today announced the launch of three stereotests including LEA Symbols, the Original Stereo Fly, Butterfly, and Randot®, by its Stereo Optical division. Stereo depth perception tests are an effective and easy-to-use method of screening stereoscopic vision for all ages. The three new stereotests including LEA Symbols are designed to screen the vision of young children and supplement the existing extensive Stereo Optical product line.. Lea Hyvarinen, MD, created the LEA Symbols® in 1976. Dr. Hyvarinen designed the circle, square, apple, and house so that each symbol measured visual acuity similarly. Numerous professional associations, including the American Academy of Pediatrics and the American Academy of Ophthalmology, have recommended LEA Symbols as vision screening tests for young children in a policy statement.. Stereo tests help to detect visual problems such as stereopsis, amblyopia, ...
Welcome to my website. Im Jenny Read, a Professor of Vision Science at the Institute of Neuroscience at Newcastle University, and a member of Newcastles Centre for Behaviour and Evolution. My particular interest is 3D or stereo depth perception, also known as stereopsis. As sketched out here, I study pretty much all aspects of this ability, ranging from detailed psychophysical measurements of depth perception, to computational models of the underlying neuronal mechanisms, to stereopsis in other species, to clinical disorders of vision, to commercial applications of 3D display technologies. Youll find my Google Scholar profile here.. The major projects ongoing in the lab at the moment are Man, Mantis and Machine, looking at insect 3D vision, and ASTEROID, developing a new vision test for children. You can read much more about these projects at the links provided.. A lot of my research uses volunteers who participate in my experiments probing human vision. If you have volunteered in one of ...
Stereopsis is an important binocular cue to depth perception. Stereopsis cannot occur monocularly and is due to binocular retinal disparity within Panums fusional space. Stereopsis is the perception of depth produced by binocular retinal disparity. Therefore, two objects stimulates disparate (non-corresponding) retinal points within Panums fusional area.. Fusion describes the neural process that brings the retinal images in the two eyes to form one single image. Fusion occurs to allow single binocular vision. Fusion takes place when the objects are the same. When the objects are different, suppression, superimposition or binocular (retinal) rivalry may occurs. Suppression occurs to eliminate one image to prevent confusion. Superimposition results in one image presented on top of the other image. Binocular rivalry describes alternating suppression of the two eyes resulting in alternating perception of the two images. This usually occurs when lines are presented to the two eyes differ in ...
Results Randot stereoacuity improved by an average of one plate (ie, one test level) on repeat testing but was little changed when tested on the third occasion. Within-subject variability was up to three test levels on repeat testing. When stereoacuity was categorised as fine, intermediate or coarse, the greatest variability was found among younger children who exhibited intermediate or coarse/nil stereopsis on initial testing. Whereas 90.8% of children with fine stereopsis (≤50 arc-seconds) on the first test exhibited fine stereopsis on both subsequent tests, only ∼16% of children with intermediate (,50 but ≤140 arc-seconds) or coarse/nil (≥200 arc-seconds) stereoacuity on initial testing exhibited stable test results on repeat testing. ...
Results Randot stereoacuity improved by an average of one plate (ie, one test level) on repeat testing but was little changed when tested on the third occasion. Within-subject variability was up to three test levels on repeat testing. When stereoacuity was categorised as fine, intermediate or coarse, the greatest variability was found among younger children who exhibited intermediate or coarse/nil stereopsis on initial testing. Whereas 90.8% of children with fine stereopsis (≤50 arc-seconds) on the first test exhibited fine stereopsis on both subsequent tests, only ∼16% of children with intermediate (,50 but ≤140 arc-seconds) or coarse/nil (≥200 arc-seconds) stereoacuity on initial testing exhibited stable test results on repeat testing. ...
Stereo matching is one of the most active research areas in computer vision. While a large number of algorithms for stereo correspondence have been developed, relatively little work has been done on...
There are at least two possible explanations for the difference between thresholds. First, a subjects sensitivity to test stimulus slant may be suppressed by the surface moving in the opposite direction in much the same depth plane. Alternatively, sensitivity to the test stimulus may be facilitated by a surface moving in the same direction at the same depth or with opposite direction in a different depth plane. To choose between these possibilities we needed a control measurement in which the test stimulus differed from both cylinder surfaces in either depth or velocity so that, as far as possible, sensitivity to the test stimulus was uninfluenced by the inducing stimulus. The control, consisting of the test stimulus located at the cylinders axis, yielded the thresholds shown on the right of Figure 2B. The confidence intervals show that the control measurements resulting from leftward and rightward stimulus movements were not significantly different, and the two measurements were therefore ...
Find everything You need to know about Monocular Cues Guide in this detail. Interposition, relative size, depth from motion, and much more explained!
12th-grade students: 4, 2, 0, 2, 3, 1. Calculate the mean and standard deviation for each of these data sets. Which is more spread out, the ninth-grade or 12th-grade data set?. Problem 3. Height of 4-year-old boys is approximately normally distributed with mean μ = 40 inches and standard deviation σ = 1.5 inches. Sketch a copy of this curve. On the horizontal axis, mark the location of the mean. Then mark points on the horizontal axis that are one standard deviation on either side of the mean.. Problem 4. IQ scores are normally distributed with mean 100 and standard deviation 15.. Sketch a copy of this curve. Then on the horizontal axis mark the mean, 100, and one standard deviation on either side of the mean. Label the horizontal axis as IQ Test Scores. Scores above 120 represent superior intelligence. Shade the area under your normal curve that represents the proportion of people with superior intelligence.. Study:. ...
A surface shape recognition apparatus includes detection circuit, comparison circuit, storage circuit, and control circuit. The detection circuit electrically detects a surface shape pattern in a partial region of the target collation surface of an object using a plurality of sensor elements and outputs detection data representing the surface shape pattern. The comparison circuit compares the detection data from the detection circuit with predetermined collation data and outputs a comparison result. The storage circuit stores template data representing the surface shape pattern of the entire target collation surface, the template data being obtained from the object in advance. The control circuit partially reads out, as collation data, the template data stored in the storage circuit from an arbitrary position, outputs the collation data to the comparison circuit, and performs determination for authentication between the template data and the object on the basis of the comparison result from the
Standard for stereo depth perception testing. Tests both gross and fine stereo vision. Buy online from Precision Vision today! In stock.
Principal Investigator:KAWAI Hideo, Project Period (FY):1992 - 1993, Research Category:Grant-in-Aid for General Scientific Research (C), Research Field:Informatics
Vergence is the motor ability that allows us to move our eyes to point them at the target. However, binocularity comes from the the sensory ability to interpret two images into one richer image. Each eye actually sees a slightly different image. The brain puts these images together and creates a 3D picture out of it by a process called fusion. If your eyes arent team players, it is difficult to judge depth, relationships, and other types of spatial awareness. If your eyes are not aligned well, your brain has a hard time fusing the two images, which can lead to double vision, confusion or ignoring an image (suppression). Think of a pair of binoculars. If you dont have the two oculars set up correctly, it doesnt feel good and it is hard to concentrate on what you are looking at, or judge where you are looking. When this happens, many people will ignore one eye and just use the other. The brain makes these types of compensations as well.. DEPTH PERCEPTION. Depth perception is the visual ability ...
A sufficiently large overestimation would mean that measures taken to avoid collision would be too late. Radiant & Hydronics Columnists Radiant & Hydronics Columns John Siegenthaler: ... theres no chance of changing tubing depth once that screed slides over the concrete. Assessment of Visual Perception of Web-Based Virtual Environments Simulations of an Urban Context AYMAN HASSAAN A. MAHMOUD 115 attention selects regions of space independent of the objects they contain (Posner and Cohen, 1984; Treisman, and Gelade, 1980). 1 Evaluating wide-field-of-view augmented reality with mixed reality simulation D. Ren , T. Goldschwendt , Y. Chang , and T. H llerer . Scenes. Robot Autonomous Racing DeCal is a course dedicated to teaching students to gain a holistic view and hands-on(virtual) experiences about building a high-performance fully … The right ear received either no input, one of three CI simulations in which the insertion depth was varied, or the original signal. The present study ...
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When I hooked the pattern, my fence was nearly as tall as my barn which was not good. I also realized I had to break up the background to create some more depth in the pattern. Color is a great way to create depth but so is direction. Between the sky and ground there is adequate contrast however between the two grass colors, I needed more differentiation than just the colors ...
This episode is an interview with Tinghui Zhou. In the recent paper Unsupervised Learning of Depth and Ego-motion from Video, Tinghui and collaborators propose a deep learning architecture which is able to learn depth and pose information from unlabeled videos. We discuss details of this project and its applications.. ...
abstract = {We present the in-situ visualization of medical data taken from CT or MRI scans in real-time using a video see-through head mounted display (HMD). One of the challenges to improve acceptance of augmented reality (AR) for medical purpose is to overcome the misleading depth perception. This problem is caused by a restriction of such systems. Virtual entities of the AR scene can only be presented superimposed onto real imagery. Occlusion is the most effective depth cue [3] and let e.g. a correctly positioned visualization of the spinal column appear in front of the real skin. We present a technique to handle this problem and introduce a Virtual Window superimposed onto the real skin of the patient to create the feeling of getting a view on the inside of the patient. Due to motion of the observer the frame of the window covers and uncovers fragments of the visualized bones and tissue and enables the depth cues motion parallax and occlusion, which correct the perceptive misinformation. An ...
When a person reaches out to place an object in just the right place, their mind makes a series of judgments requiring vision, stability and careful movement.
Bollé is launching the most technologically advanced high contrast lens in the marketplace with the introduction of Volt +, the industrys first lens ever developed using Artificial Intelligence.. The goal in developing the Volt + was to create a lens that provided high contrast and enhanced all colours to improve depth perception without compromising white balance. In the past, high contrast lenses enhanced one colour while diminishing other colours. The Volt + enhances all colours, offering the most complete high contrast lens that improves depth perception.. Using AI, Bollé was able to evaluate 20 million different lens formula combinations to settle on an incomparable colour experience that sets a new standard. The Volt + lens is the latest innovation to come out EPIC, Bollés new state-of-the-art design and technology innovation lab based in Lyon, France.. The lens technology will be included throughout Bolles line of sport sunglasses for the Spring 2021 season.. Back ...
In relationships of all kinds, we practice diplomatic dishonesty in many different forms. Out of balance, diplomatic dishonesty becomes codependence, one of the most unhealthy types of controlling behavior, I think. It can also go out of balance in the other direction. I am no fan of radical honesty. Ive seen people use that excuse to say the most hurtful things you can imagine. Part of being two-eyed means we can think before we speak. Well, we can, even though sometimes its difficult. We can ask ourselves what we hope to accomplish by saying whatever it is thats tickling our throats, rattling the voicebox in its eagerness to get out. What I really dislike about radical honesty is the idea that we should never filter what we say. Should we say everything? To what end ...
I was in line at Publix the other night. Grabbing some chicken tenders at their deli, I needed to pay for the poultry and get back to work. The kid in the checkout was helping the customer in front of me, and in the back of my mind, Im sure I noticed the sweet track of music playing over the speaker system in the grocery: Seals Kiss From a Rose. What I then noticed was that as he was transitioning from ringing up the previous customer to ringing up my meal, he was mouthing words, while looking down. I thought, what is he saying? and who is he talking to? Then, to my horror and delight, I put 2 and 2 together. This young buck had Seal in his soul. The part of the song that he was so synched up to was (courtesy of www.lyricsmania.com ...
Details: Material: Cotton+ Polyester Color: As Pic Size:S,M,L,XL,XXL,3XL,4XL,5XL Size Chart: Care Instructions: · We recommend hand washing this garment, and w
Churches have a need for leadership but the disconnect remains. For too long the church has thought that any person that can read a book, can teach a small group. Really? The ability to read gives you the right to speak on spiritual matters? These undiscipled people in a traditional church setting become leaders, teachers, deacons, committee members and so on ...
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Deep in winter, and even deeper in British Columbia, youll find more than just one of the worlds best places to ride - around every corner, some wild...
Theres no way to say this without sounding smug, so Ill just come out and say it. I think my writing has reached a new level. I say this not out of ego, but from a sort of realization that stems from a discussion I had with a trusted colleague last week. Hed read my…
For people who dont happen to read the Los Angeles Times, I would suggest clicking here for an excellent article posted on October 21 by Neal Gabler. It is
Im a person whos stimulated by discussion, debate, and thinking, in general. I enjoy the arts a great deal. I love humor and absurdist things, as well as a powerful, dramatic rendering of events. Personally, I have a lovely wife, a beautiful and funny 5 year-old daughter, a mischievous and sweet 3 year-old son, and a newborn baby boy. My family means so much to me. My extended family are great as well, including my Dad, Mom, brother, his wife and their 2 sons, and my Father and Mother-in-law, and Brother-in-law ...
A Head-Up Display(HUD) is required that can give information to the driver in an easy to understand manner which can prevent traffic accidents. AR-HUDs are used to display driving information that overlay the image on the actual scenery. It is important for AR-HUDs to see the information and the actual scene at the same time and the depth feeling and the distance feeling are key factors. Binocular parallax used in stereoscopic 3D display is one of the most useful method to provide the depth feeling and the distance. In general, the stereoscopic 3D display sets the image range in the Panums fusional area to avoid inhibition of fusion. However, in the case of using the stereoscopic 3D display for AR-HUD, the image range must be set beyond the Panums fusional area to see the information and the actual scene at the same time. In this study, we were investigated the visibility of stereoscopic 3D display beyond the Panums fusional area for AR-HUDs. Easiness of fusion was measured by the ...