ipl-logo

Optical Camouflage Analysis

941 Words4 Pages

ABSTRACT:- Invisibility are heard in stories but it is made true using optical camouflage, image based-rendering, retro-reflective material. The object is made transparent by painting with retro-reflective material. The background image is projected using the projector making it virtually transparent. Video camera captures the background behind the masked object. Digital video camera should be used so that it can be sent to the computer for image processing KEYWORDS : Optical camouflage ,retro reflective material. I. INTRODUCTION Optical camouflage is a active camouflage. The concept is simple. If the background image is projected on the object painted with retro reflective material, it creates invisibility. Digital Video camera, computer, …show more content…

The masked object acts like a screen in which the background is projected using video camera. The format of the video should be digital for easy processing. COMPUTER: Powerful computers synthesize graphics and superimpose on real world image on augmented outputs. Computer reckons perspective to simulate the reality and modify the captured image into the image that will be projected on the clock. This technique is image based rendering. PROJECTOR AND COMBINER: PROJECTOR: The transformed image must be shone on to the cloak. The image is sent through an opening controlled by iris diaphragm .Its is made of thin opaque plates and rings to change the diameter. The size of the opening must be in the size of the pin hole to ensure larger depth of field. larger field depth allows the screen to be located at any difference from the projector. COMBINER: A special mirror known as a combiner or beam splitter is required for both reflection and transmission .silvered half of mirror reflects the light while the other transparent half transmits light.the combiner must be properly positioned to view the image processed by the computer.the cloak and the background image must be fully integrated for realistic …show more content…

The computer gives the processed image to the computer and sends it through the iris diaphragm on to the combiner.th silvered half is completely reflective and project the image to the image to the cloak. The cloak acts as a movie screen and reflects light back to the source. Light rays from the cloak pass through the transparent mirror and reach the user. These rays contain the background scene. Object covered with the retro reflective material appears invisible due to the background scene which is being display on it HEAD-MOUNTED DISPLAYS : HMD is a wearable device capable of projecting images and helps the user to see through it HMD display assemble combiner and optics in a mobile device .two types of HMD exists; optical see through displays and video see through displays. The former looks like hi-tech goggles. These goggles provide the display and optics for each eye to provide a stereoscopic effect. Video see through displays combines camera image with computer graphics. The combined is presented on a LCD displays. Video see through displays can make virtual object fully obscure real world objects VII.REAL-WORLD APPLICATIONS While an invisibility cloak is an interesting application of optical camouflage, it's probably not the most useful one. Here are some practical ways the technology might be

Show More
Related
1125 Words | 5 Pages

Focus the eyepieces to adjust your view. 3. Adjust the illumination to an appropriate level by adjusting the iris diaphragm and the condenser. The light should appear on the side directly below the objective lens, and give an even amount of illumination. 4.

Read More
804 Words | 4 Pages

A hologram is a three-dimensional version of a photograph produced by the interference patterns of two laser light beams. It contains the whole message or entire picture in every portion of its surface. The two laser beams are actually part of one beam; one part illuminates the object and is reflected from the object to the film and the second part is reflected from a mirror to the film, called the reference beam. It may appear to be an imageless piece of transparent film to a normal person, but its entire surface is made up of a pattern of tiny interference fringes.

Read More
538 Words | 3 Pages

Images can be deceiving and have a direct purpose intended by the creator. Knowing the purpose and goal behind the image will help us to see how it is being used to persuade the viewer. Virtual analysis gives us the ability to see what is beyond the image displayed. We can try to interpret and breakdown the content. An example of how analysis is useful is a detective in a murder investigation between a husband and wife. .

Read More
943 Words | 4 Pages

The book Things Not Seen by Andrew Clements, is about a 15 year old boy, Bobby Phillips. One typical Tuesday morning he went to take a shower as usual. That’s when he realized he was invisible, when he couldn’t see himself in his mirror. Bobby told his parents quickly. His mom, a literature professor and his dad, a physicist, both try to figure out how this could have happened to their son, but have no clue where to start searching for the solution to what seems like an impossible problem.

Read More
658 Words | 3 Pages

Ralph Ellison’s novel, Invisible Man, has many references to police brutality, discrimination, and white supremacy. The protagonist faces dilemmas that have him questioning his own identity, as well as the society he lives. This all begins after the death of his friend Tod Clifton; he watches the policeman pulls the trigger on his friend. Ellison makes sure that it is an important moment in the story to show that black people are continuously dehumanized, and the protagonist learns it the very hard way. He experiences it through oppression, growth, and loss.

Read More
645 Words | 3 Pages

What makes The General significant is its use of diffusion and backlight. Bert Haines (1896-1991) shot the film on panchromatic film in sepia tone. Giving the film a pleasing dynamic image. Throughout the film, Haines capitalizes on the recent technological innovations in the 20’s with lighting instruments. Lighting the exterior of most shots balances the interior so that there are no harsh shadows on any of the faces.

Read More
2132 Words | 9 Pages

Oculus VR is an American virtual reality technology company founded by Palmer Luckey and Brendan Iribe. Their first product, still in development, is the Oculus Rift, a head mounted display for immersive virtual reality (VR). It reads as both “O” and as the viewfinder (that the probably don’t even call it that) of the Oculus. It’s as simple as it gets and it’s still highly distinctive. It’s extremely elegant but also very bold

Read More
728 Words | 3 Pages

Using mirrors as tools for magic comes from the Middle Ages when it was believed that wizards looked into mirrors to see the future. (Colbert 108) This does happen in later books, but in the first book, the use of the mirror is arguably much less mystical. Legend has it that whoever looks in the mirror will see their hearts’ deepest desire. It is known to drive the people who gaze into it insane.

Read More
1465 Words | 6 Pages

The movie Hidden Figures by Theodore Melfi is talking about the civil rights and equality of men and women in 1970 's to 1990’s. The Mise-en-scene means "setting up a scene. " There are six elements that make up mise-en-scene acting, costume and make-up, setting, lighting, composition or space and lastly. In Hidden Figures, the mise-en-scene helps audiences to become closer to the story and have the same feeling as those main characters. The director uses many different kind of shout angles to show the unbalanced between black people and white people at that time and the color and lighting also help the director can present the emotions that the characters are facing different kind of events or people.

Read More
2751 Words | 12 Pages

Racism is one of the most important social and national issues that face the word. As resistance literature is decrying oppression, injustice, terrorism and violations of the people rights , it also decries racism .Ralph Ellison is one of the writers of the resistance literature , who is fighting against racism though his writings. Invisible Man by Ralph Ellison , represents resistance literature and its important issues which is racism ; through racial polices and the loss of individual identity. The novel starts with the narrator who is college-educated black man struggling to survive and succeed in a racially divided society that refuses to see him as a human being, he introduces himself as an "invisible man" which is the title of the novel .

Read More
1127 Words | 5 Pages

So just before this clip you can tell that someone was watching videos on the internet on some random website. We know that were on the perspective of someone surfing the web. Then as we go towards after the clip we see our main character watching the video through a camera on his computer. Someone then knocks on the door and it goes to an awkward shot of him sitting in

Read More
733 Words | 3 Pages

In spite of the indifference, Virtual Reality has awoken the world in giant ways. Society should not stay doubtful of the countless possibilities it has to bring in an optimistic and technological way. Recently, in order to describe something that holds spirit and effect without having form, but having an effect on the actual, the word ‘virtual’ was used. Virtual reality is developing all the time and has found hitches not formerly considered. Applications of Virtual reality are starting to find their way into normal society.

Read More
7336 Words | 30 Pages

CHAPTER TWO LITERATURE REVIEW AND THEORETICAL FRAMEWORK 2.1 Introduction: This chapter would analysis photography under conceptual review as the main concept of this study, it would look at the history of photography, types of photography, and types of cameras available till date, followed by empirical review and lastly the theoretical framework would come at the end of this chapter. 2.2.1 History of photography The concept of photography was coined out of a Greek words “photo” meaning light and “graphy” meaning writing and when merged together the word means writing with light. Although different scholars proffered different definitions of photography, the concept, however still remains the same.

Read More
911 Words | 4 Pages

Whether it’s a mundane or practical application like instructions in a piece of equipment or medical information of a patient or something more a little complex like taking situational awareness information presenting it to a soldier or to a police men, augmented reality seems to have such a great advance impact in technology and has become an important aspect of

Read More
1516 Words | 7 Pages

The plano-convex lens is replaced with another glass plate and a section of optical fibre was placed between them at one end. Light falling normally on the plates will be reflected back out with a phase difference. Figure 3: Apparatus set up for finding the thickness of an optical fibre, showing the optical fibre between the two glass plates This is due to the fact that some of the coherent light waves were reflected from the top plate and others from the bottom, this path difference resulted in the interference of these waves with one another. This caused an interference pattern similar to the below image: Figure 4: Image similar to the observed interference pattern.

Read More

More about Optical Camouflage Analysis

Related Topics

Open Document