Pdf fast threestep phaseshifting algorithm researchgate. Highspeed threedimensional shape measurement system optical engineering 16032 november 2007vol. Sift the scale invariant feature transform distinctive image features from scaleinvariant keypoints. The purpose of shape shifting has never been impressing others, but rather partaking of strength, wisdom or power pertaining to the specific animal and for the sake of gaining some learnings. Edward jackowski, exude fitness founder and author of escape your shape, classifies body shapes into four basic types. Shape shifting tries for faster ip route lookup haoyu song, jonathan turner, john lockwood applied research laboratory washington university in st. Dynamic 3d shape measurement by iterative phase shifting. Abstract this paper presents pneui, an enabling technology to build shape changing interfaces through pneumaticallyactuated soft composite materials. Efficient collective shape shifting and locomotion of. This is the first time researchers have been able to combine several smart abilities. Gpuassisted highresolution, realtime 3d shape measurement. Its the metamorphosis of a person into an animal or other form. The ghost cube can be solved in a similar way to the 3x3 beginners layerbylayer method.
Techniques for global and personal transformation kindle edition by perkins, john. Flexible distributed algorithm for modular robots shapeshifting. An example illustrating this process is shown in figure 2. Composite phaseshifting algorithm for threedimensional shape compression nikolaus karpinsky song zhang, member spie iowa state university department of mechanical engineering ames, iowa, 50011 email. A variety of phaseshifting algorithms have been developed, that include threestep, fourstep, and leastsquare algorithms 7. May 26, 2015 mean shift clustering is one of my favorite algorithms. In this section i will present some rubiks cube twisty puzzle shape mods which all have the classic 3x3x3 core mechanism in the inside but from outside they seem to. Harnessing algorithms to create shape shifting typography kyuha shim creates algorithmicallygenerated typography.
Errorcompensating phaseshifting algorithm for surface shape. Search engines help us navigate massive databases of information, or the entire web. By implementing this new algorithm in a highresolution, realtime three dimensional shape measurement system, we were able to achieve a measurement speed. Elasticity and stability of shapeshifting structures. Shape shifting a film by elke marhofer and mikhail lylov.
Highspeed threedimensional shape measurement system. The second one is used to match object pixels in consecutive images, acquired at various object positions. According to the characteristic of automatic reconfiguration, the shape shifting robot can be considered as one that holds the reconfiguration ability to strengthen the accessibility. We propose a new threestep phase shifting algorithm, which is much faster than the traditional threestep algorithm. The basic step in the search algorithm requires decoding the shape bitmap. Feb 12, 2016 the insane shape shifting technology that will change the way you work. By implementing this new algorithm in a highresolution, realtime threedimensional shape measurement system, we were able to achieve a measurement speed. Enhanced high dynamic range 3d shape measurement based on. Highspeed threedimensional shape measurement system using. In fact, if you know how to solve a regular rubiks cube and have some knowledge of shapeshifting puzzles, you may be able to complete this puzzle unaided, although be aware that there is a parity case for this puzzle. Mobile modules which flow out of the structure attach to the frame, advancing its boundary. This algorithm is the simplest algorithm and it is easy to understand. Mean shift clustering the mean shift algorithm is a nonparametric clustering technique which does not require prior knowledge of the number of clusters, and does not constrain the shape of the clusters.
Scale down the input image since the desired features can ben detected in lower resolution. Jun 01, 2010 nikolaus karpinsky and song zhang composite phaseshifting algorithm for threedimensional shape compression, optical engineering 496. Researchers develop shapechanging smart material wsu. The insane shapeshifting technology that will change the way you work. The phase is only encoded with two fringe images and the third image is zhang and yau. The summer of 2009 might be remembered for the death of michael jackson, tormented genius. Abstract this paper presents pneui, an enabling technology to build shapechanging interfaces through pneumaticallyactuated soft composite materials. We propose a method to enhance high dynamic range 3d shape measurement based on a generalized phaseshifting algorithm, which combines the complementary techniques of inverted and regular fringe patterns with a generalized phaseshifting algorithm. We show that this meta algorithm, described as a general functioning schema, presents a good framework to easily conceive distributed algorithms for shape shifting problems. Harnessing algorithms to create shapeshifting typography. Highspeed threedimensional shape measurement system using a. The composite materials integrate the capabilities of both input sensing and active shape output. Flexible distributed algorithm for modular robots shape shifting.
Dynamic 3d shape measurement based on the phaseshifting moire. The new emerging technology in modern the world is shape shifting robots. The technology is still years awaybut its application could be huge. To achieve highspeed 3d shape measurement, a threestep phaseshifting algorithm with a phase shift of 2. For each object, extract its features, in this case, just the number of corners. Composite phase shifting algorithm for threedimensional shape compression nikolaus karpinsky song zhang, member spie iowa state university department of mechanical engineering ames, iowa, 50011 email. Shapeshifter meaning in the cambridge english dictionary. Superfast phaseshifting method for 3d shape measurement. Washington state university researchers have developed a unique, multifunctional smart material that can change shape from heat or light and assemble and disassemble itself. In contrast, a threestep phaseshifting algorithm is able to solve the phase uniquely from the fringe images. Shapeshifter definition of shapeshifter by merriamwebster.
Preprogramming materials to shape shift at a given time w. Shapeshifting structured lattices via multimaterial 4d printing. I am struck by my own caughtupness in the swirls of rumor surrounding his sudden death, by the emotion flooding out from his memorial, by the sordidness of his life story, slowly emerging, dripping, we could say, like the drops of diprivan into his body hand. Nov 19, 2015 shapeshifting is a tradition that exists in most native cultures. Knowing your arpeggios all over the fingerboard using different fingerings is one of the most important things youll ever practice. The basic idea of our method is that we use four sinusoidal patterns with.
Enhanced high dynamic range 3d shape measurement based on generalized phase shifting algorithm minminwanga,guangliangdua,canlinzhoua,chaoruizhanga,shuchunsia,huilia,zhenkunleib,yanjielic. This research work aims to design controllers for a shape shifting tracked robotic vehicle, thus enabling it to autonomously climb obstacles by adapting its geometric configuration. The data acquisition speed is as high as 60 framess with an image resolution of 640. Shapeshifter definition is one that seems able to change form or identity at will. Therefore, for highspeed, accurate measurement of complex geometric shapes, a threestep phaseshifting algorithm is the. In this section i will present some rubiks cube twisty puzzle shape mods which all have the classic 3x3x3 core mechanism in the inside but from outside they seem to be something else. Finally, the surface shape of a fused silica wedge plate obtained using a wavelength tuning fizeau interferometer and the sample algorithm are presented. Shape shifting tries for faster ip route lookup applied research. The video is so clear that theres no need of a brief description of how to solve it. Pdf 101frame algorithm for phaseshifting interferometry. A shapeshifting distributed metaalgorithm for modular. Thanks to the heisingsimons foundation for supporting this video. With recent advancements in 3d imaging and computational technologies, acquiring 3d data is unprecedentedly simple.
Enhanced high dynamic range 3d shape measurement based on generalized phaseshifting algorithm minminwanga,guangliangdua,canlinzhoua,chaoruizhanga,shuchunsia,huilia,zhenkunleib,yanjielic. Composite phaseshifting algorithm for absolute phase measurement. Harnessing algorithms to create shapeshifting typography kyuha shim creates algorithmicallygenerated typography. When this image is superimposed on the four corners of the binary image i. His gen project uses images as inputs to create an everchanging, random typeface.
We propose a methodology of planning effective shape shifting and locomotion of largeensemble modular robots based on a cubic lattice. Carl friedrich gausss likeness upper left and generate a 3d surface the target shape via an artificial intelligence algorithm. Automated shapeshifting for function recovery in damaged. The team reports that they can control the shape shifting to within hours, minutes or even seconds. Sep 28, 2016 preprogramming materials to shape shift at a given time w video. The shifting nth root algorithm is an algorithm for extracting the nth root of a positive real number which proceeds iteratively by shifting in n digits of the radicand, starting with the most significant, and produces one digit of the root on each iteration, in a manner similar to long division. He suggests that using your body type to determine your fitness routine can help you slim down and build up in all the right places without adding bulk anywhere it might be unwelcome. Enhanced high dynamic range 3d shape measurement based. Owing to the engineering requirements, the 3d shape measurement of dynamic objects is a widely concerning issue. Realtime 3d shape measurement with composite phaseshifting.
In many traditional cultures, its still practiced today, and theres value in learning to do this for yourself. Focusing on the existing issues, we proposed a dynamic 3d shape measurement method based on the phaseshifting moire algorithm. Computing science, utrecht university padualaan 14, 3584 ch utrecht, the netherlands remco. In this paper, we present a new path planning method that uses the reconfiguration ability of robot. The first one is used to retrieve the phase map by an iterative leastsquares method.
Its a simple and flexible clustering technique that has several nice advantages over other approaches in this post ill provide an overview of mean shift and discuss some of its strengths and weaknesses. Three control algorithms are proposed to solve the autonomous locomotion problem for climbing obstacles. Pneumatically actuated soft composite materials for. The experimental results indicate that the surface shape measurement accuracy for a transparent fused silica plate is 3 nm. We show that this metaalgorithm, described as a general functioning schema, presents a good framework to easily conceive distributed algorithms for shapeshifting problems.
In this work, we introduce a highspeed 3d shape measurement technique based on. Dynamic 3d shape measurement based on the phaseshifting. We achieve the speed advantage by using a simple intensity ratio function to replace the arctangent function in the traditional algorithm. Measurement example of a 3d statue continued from fig. Popular shapeshifting creatures in folklore are werewolves and vampires mostly of european, canadian, and native americanearly american origin, the huli jing of east asia including the japanese kitsune and korean kumiho, and the gods, goddesses, and demons of numerous mythologies, such as the norse loki or the greek proteus. Lowe, international journal of computer vision, 60, 2 2004, pp. In this work, we propose a novel technique to retrieve 3d shape of dynamic objects by the simultaneous projection of a fringe pattern and a homogeneous white light pattern, both coded in an rgb image. This paper describes a highresolution, realtime, threedimensional shape measurement system using the modified twoplusone phaseshifting algorithm.
With this system, together with the fast threestep phaseshifting algorithm and parallel processing software we developed, highresolution, realtime 3d shape measurement is re alized at a. For example, in worst case the whole functionality of the cube is lost and it needs to. Removal of pectoral muscle based on topographic map and. Jun 09, 2015 hello everyone this is the mirror cube, shape mod of a 3x3 and a shape shifting puzzle. We propose a method to enhance high dynamic range 3d shape measurement based on a generalized phase shifting algorithm, which combines the complementary techniques of inverted and regular fringe patterns with a generalized phase shifting algorithm. Now she could smell what the jaguar could smell, odors deeper and richer than anything she had experienced before, layers of smell she could read like fray tomas had read the words in her fathers book. We also prove the facility to instantiate the algorithm for special target shapes and we give an adaptation of the algorithm to reach any horizontally convex form. Composite phaseshifting algorithm for threedimensional. With this system, together with the fast threestep phase shifting algorithm and parallel processing software we developed, highresolution, realtime 3d shape measurement is re alized at a. We propose a new threestep phaseshifting algorithm, which is much faster than the traditional threestep algorithm. Nikolaus karpinsky and song zhang composite phaseshifting algorithm for threedimensional shape compression, optical engineering 496. Familiarize yourself with the chord tones from a ii v i progression in the key of c major. Hello everyone this is the mirror cube, shape mod of a 3x3 and a shape shifting puzzle.