A design of an on-line Java applet that allows the user to upload images being close to a stereo pair and reconstruct a depth map of a depicted3d scene is described. It is accessible to a wide range of users and can ...
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A design of an on-line Java applet that allows the user to upload images being close to a stereo pair and reconstruct a depth map of a depicted3d scene is described. It is accessible to a wide range of users and can serve as a tool that allows the Internet users to learn and explore the research domain of computational stereo vision. The images are automatically rectified into an epipolar stereo pair after several corresponding points were interactively specified. The rectified pair is converted into an anaglyphic image of the scene, or a dense depth map is reconstructed from this pair using available or even user-submitted stereo algorithms. After the depth map is computed, the user can display arbitrary 3d views of the scene based on the depth and textural information. The implementedweb-community sharing port allows the users to upload and share their own solutions. The current version of this applet is temporarily stored at http://***/~mngu012.
The PLASTIC project adopts and revisits service-oriented computing for Beyond3rd Generation (B3G) networks, in particular aiming at assisting the development of services targeted at mobile devices. Specifically, PL...
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The PLASTIC project adopts and revisits service-oriented computing for Beyond3rd Generation (B3G) networks, in particular aiming at assisting the development of services targeted at mobile devices. Specifically, PLASTIC introduces the PLASTIC platform to enable robust distributed lightweight services in B3G networking environments through: (a) A development environment for the thorough development of SLA- and resource-aware services, which may be deployed on the various networked nodes, including handhelddevices; (b) A service-oriented middleware leveraging multi-radio devices and multi-network environments for applications and services deployed on mobile devices, further enabling context-aware and secure discovery and access to such services; (c) A validation framework enabling off-line and on-line validation of networked services regarding functional and non-functional properties.
With the increased precision in dose delivery provided by highly conformal radiotherapy techniques such as intensity modulated radiotherapy (IMRT), the requirement for accuracy in patient positioning for treatment is ...
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With the increased precision in dose delivery provided by highly conformal radiotherapy techniques such as intensity modulated radiotherapy (IMRT), the requirement for accuracy in patient positioning for treatment is emphasised. This system uses augmented reality (AR) to allow the radiation therapist to visually guide the patient during positioning for treatment. It superimposes three-dimensional scan data acquired from the planning CT over a real-time view of the patient, which is obtained from a conventional webcam. The 3ddata is positioned relative to AR tracking markers visible to the camera. Throughout development, the system was tested on a 30 cm wooden phantom in place of the patient. A CT scan was performed on the phantom to obtain 3ddata, and a small scale test couch was set up to perform registration tests. Modifications to the position of the phantom on the test couch on the order of a millimetre have been visible.
Tissue engineering and regenerative medicine are hoped as the most promising advanced medicine of 21st century. Both are the most promising and reasonable approaches to save patients with organ failure, instead of tra...
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ISBN:
(纸本)9780892082735
Tissue engineering and regenerative medicine are hoped as the most promising advanced medicine of 21st century. Both are the most promising and reasonable approaches to save patients with organ failure, instead of transplantation. To date, simple and thin tissues have been successfully engineered such as skin and cartilage, however, a number of challenges are needed in engineering other thicker, larger and more complicated tissues and finally available organs. Biological tissues are composed of several types of cells and biomaterials, and have 3d architectures with micro-scaled resolution and macro-scaled mass. To engineer such tissues, printing technologies are promising, because the printer must print pictures on macro-scaled papers simultaneously with micro-scaled resolution. Then, we have developed 2d to 3d biofabrication using inkjet and hydrogel. 3d bioprinter has been developed using inkjet by our selves and several structures with hydrogel and living cells were fabricated. In this presentation, we introduce our progress of the research anddevelopment using inkjet technology. digital fabrication including inkjet will provide promising and innovative approaches for sophisticated tissue engineering.
An investigation has been carried out on the control of a micro-droplet in electrostatic inkjet phenomena, because the electrostatic inkjet has a merit that the formation and locus of the droplet can be controlled by ...
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ISBN:
(纸本)9780892082735
An investigation has been carried out on the control of a micro-droplet in electrostatic inkjet phenomena, because the electrostatic inkjet has a merit that the formation and locus of the droplet can be controlled by the application of the electric field and it is possible to treat highly viscous liquid. It was observed that a Taylor cone of the paste was formed at an end of a tube and the tip of the cone was broken to form a very small droplet at the beginning of the corona discharge. droplets of paste that contains Ag nanoparticles are injected on a glass substrate to form electrode patterns. The formation of the droplet is controlled by the application of pulse voltage between the plate electrode and the fine tube that is filled with Ag paste. A multi-layered printing was realized by over-coating insulative glass paste on line electrodes. A direct 3d printing was also developed by taking advantage that highly viscous liquid can be ejected by the electrostatic inkjet system.
The application of 3d printing in conventional printing technology was studied. Two methods of using of 3d prints in function of 2d printing were considered. Physical and mechanical characteristics of printed3d mater...
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ISBN:
(纸本)0892082739
The application of 3d printing in conventional printing technology was studied. Two methods of using of 3d prints in function of 2d printing were considered. Physical and mechanical characteristics of printed3d material were determined in order to verify the use of 3d prints in conventional flexography printing process. 3d prints can be used as flexographic printing plate directly and as a negative matrix for conventional photopolymer flexographic printing plate production. Current material 3d prints are brittle and porous;therefore the finishing is required before further use. Liquid epoxy resin was considered as an appropriate agent as well as some other infiltrates, such as cyanoacrylate and Polyurethane infiltrants. It is important that the applied infiltrant penetrates completely into the 3d print without any influence to its dimensions. The digital test form of the flexographic printing plate is required for the 3d printing. It can be constructed either by computer program or by scanning. 3d scanner is appropriate if the conventional flexographic printing plate exists and the 3dtechnology is used to produce the copy. The attempt of producing the 3ddigital test form of the flexographic printing plate by means of computer programming was done.
In this paper, we present a methodology for creating a diamond substrate infrastructure that is appropriate for creating high-performance devices with high power densities that can efficiently dissipate heat. This tec...
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In this paper, we present a methodology for creating a diamond substrate infrastructure that is appropriate for creating high-performance devices with high power densities that can efficiently dissipate heat. This technique is an enabling technology that will allow the design of complex, high power systems such as systems on chip (SoC) architectures.
One of the interconnection related challenges that face future computer designers is the so called "memory wall." While currently marketed processor clock rates have temporarily stalled, and multiple core mi...
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One of the interconnection related challenges that face future computer designers is the so called "memory wall." While currently marketed processor clock rates have temporarily stalled, and multiple core microprocessors are growing in importance, there is no escape from the memory wall. The peak processor performance using either single high clock rate, or multiple core slower clock rate systems, will doubtless create the same amount of demand on memory especially if the multiple cores need access to one shared memory address space. It will be the total demand upon this memory in bytes per second that limits performance regardless of the source of this demand. The widening gap between this total processor demand and what real memory can sustain constitutes the memory wall. Current on chip memory such as LI or L2 cache demonstrates the advantage of ultra short wiring in reducing latency. But eventually access must be to L3 or other main memory, which traditionally requires a multiple chip solution. Conventional packaging increases wiring capacitance to these distant chips, limits bus bit bandwidth, anddemands additional power consumption for paddrivers. 3d integration of SRAM, and eventually dRAM, can facilitate much wider bus bit bandwidth and reduce latency for these higher-level cache memories. Long external interconnections can be then reduced to extremely short, low parasitic, low driver power demand, low-skew vertical vias. For extremely small lateral dimensions these vertical vias can be packed very tightly, presenting the opportunity for much larger numbers of data and address lines to pass between the processor and memory. Additionally, for extremely large main memories, chip stacking can reduce the number of dIMM's or SIMM's needed, and hence physical board size and length of board level interconnections that remain to be implemented using conventional packaging. Hence, 3d is seen as a technology that can reduce main memory latency, and reduce driver pow
While mobile 3d maps are not a new idea, implementations have been sparse. One reason is the serious lack of computing resources in the mobile environment, while another has been the lack of feasible programming inter...
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ISBN:
(纸本)0889864640
While mobile 3d maps are not a new idea, implementations have been sparse. One reason is the serious lack of computing resources in the mobile environment, while another has been the lack of feasible programming interfaces. As the mobile 3d programming interfaces OpenGL ES1 and JSR-1842 have lately emerged, the remaining main obstacles are the limited resources. In this paper, we discuss the technical challenges in creating a mobile real-time 3d city map application with support for dynamic content, and present a set of feasible solutions.
The proceedings contain 30 papers. The topics discussed include: analysis of ink scuff in heatset web offset printed silk papers;ink drying in sheet-fed offset printing-effect of temperature;deviations from the gloss-...
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ISBN:
(纸本)1897023049
The proceedings contain 30 papers. The topics discussed include: analysis of ink scuff in heatset web offset printed silk papers;ink drying in sheet-fed offset printing-effect of temperature;deviations from the gloss-tack relationship;impacts of ink properties on downstream piling;the 3d observation of the ink penetration in paper by confocal scanning laser microscope;two-sidedness of print mottle for uncoated fine papers;lineboard surface chemistry and structure effect flexographic print quality;observation of the dye ink penetrated into the ink jet printing papers;relationship between microgloss variations and surface texture of paper;and spectral reflectance prediction of fulltone offset printed LWC papers.
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