摘要:
Provided are a method and system for determining an optimal exposure of a structured light based 3D camera. The system includes a projecting means for illuminating a predetermined pattern on a target object, an image capturing means for capturing an image of the target object with the pattern projected, and a processing means for reconstructing 3D data for the target object by identifying the pattern of the captured images from the image capturing means. The system automatically determines an optimal exposure of the structured light based 3D camera system through analyzing the captured image of the target object.
摘要:
Provided are a method and system for determining an optimal exposure of a structured light based 3D camera. The system includes a projecting means for illuminating a predetermined pattern on a target object, an image capturing means for capturing an image of the target object with the pattern projected, and a processing means for reconstructing 3D data for the target object by identifying the pattern of the captured images from the image capturing means. The system automatically determines an optimal exposure of the structured light based 3D camera system through analyzing the captured image of the target object.
摘要:
An apparatus for generating an independent coherent beam array from a single light source, in which individual coherent beams are selectively activated. The independent coherent beam array generating apparatus, which ensures high-efficient independent coherent beams from a single light source, are implemented by using a phase grating and a spacial light modulator. The number of multiple beams to be used as a light source for high-density recording and reading can be adjusted by varying the design of the phase grating. Regardless of the number of light sources required in various applications, once the beam array generating apparatus is adopted to the applications, the desired function of the applications can be implemented at low cost.
摘要:
A distributed proximity sensor system is provided with multiple photosensitive devices and light emitters embedded on the surface of a robot hand or other moving member in a geometric pattern. By distributing sensors and emitters capable of detecting distances and angles to points on the surface of an object from known points in the geometric pattern, information is obtained for achieving noncontacting shape and distance perception, i.e., for automatic determination of the object's shape, direction and distance, as well as the orientation of the object relative to the robot hand or other moving member.
摘要:
A nozzle and an electrostatic field induction ink-jet nozzle are disclosed. In accordance with an embodiment of the present invention, the nozzle includes a concave part, which is formed along an outer circumference of the nozzle and in which the outer circumference is adjacent to a liquid discharging surface. The discharging nozzle can minimize the overflow and damping by a liquid during a process of discharging the liquid and thus maintain the discharging performance constant despite an extended operation of the nozzle.
摘要:
An assembly planning system that operates based on a recursive decomposition of assembly into subassemblies, and analyzes assembly cost in terms of stability, directionality, and manipulability to guide the generation of preferred assembly plans. The planning in this system incorporates the special processes, such as cleaning, testing, labeling, etc. that must occur during the assembly, and handles nonreversible as well as reversible assembly tasks through backward assembly planning. In order to increase the planning efficiency, the system avoids the analysis of decompositions that do not correspond to feasible assembly tasks. This is achieved by grouping and merging those parts that can not be decomposable at the current stage of backward assembly planning due to the requirement of special processes and the constraint of interconnection feasibility. The invention includes methods of evaluating assembly cost in terms of the number of fixtures (or holding devices) and reorientations required for assembly, through the analysis of stability, directionality, and manipulability. All these factors are used in defining cost and heuristic functions for an AO* search for an optimal plan.
摘要:
A method of decoding hierarchically orthogonal structured light and a 3-D depth measurement system using the same include a step of detecting boundary lines encoded at an identical position between layers and a boundary line inheritance step of converting the detected boundary lines into identical boundary lines. The present invention relates to a method of precisely searching for the boundary line of a pattern of radiated structured light based on the real coordinate system of an image plane, and an object thereof is to search for a boundary line irrespective of the reflection of a surface of an object, clearly classify a true boundary line and a false boundary line in a poor radiance environment, and increase the accuracy of a boundary line placed in another layer through inheritance.
摘要:
A nozzle and an electrostatic field induction ink-jet nozzle are disclosed. In accordance with an embodiment of the present invention, the nozzle includes a concave part, which is formed along an outer circumference of the nozzle and in which the outer circumference is adjacent to a liquid discharging surface. The discharging nozzle can minimize the overflow and damping by a liquid during a process of discharging the liquid and thus maintain the discharging performance constant despite an extended operation of the nozzle.
摘要:
Provided are a system and method for real-time object recognition and pose estimation using in-situ monitoring. The method includes the steps of: a) receiving 2D and 3D image information, extracting evidences from the received 2D and 3D image information, recognizing an object by comparing the evidences with model, and expressing locations and poses by probabilistic particles; b) probabilistically fusing various locations and poses and finally determining a location and a pose by filtering inaccurate information; c) generating ROI by receiving 2D and 3D image information and the location and pose from the step b) and collecting and calculating environmental information; d) selecting an evidence or a set of evidences probabilistically by receiving the information from the step c) and proposing a cognitive action of a robot for collecting additional evidence; and e) repeating the steps a) and b) and the steps c) and d) in parallel until a result of object recognition and pose estimation is probabilistically satisfied.
摘要:
The present invention relates to a droplet jetting apparatus using electrostatic force, a manufacturing method thereof and an ink providing method thereof. The droplet jetting apparatus using electrostatic force includes a lower electrode unit in which a nozzle and a lower electrode positioned in the nozzle equipped in the upper part of a first substrate, and an ink inflow channel equipped in the lower part of the first substrate are integrally formed; an upper electrode unit having an upper electrode formed on the top surface of a second substrate and an ink discharge hole formed by being penetrated to the upper electrode from the bottom surface of the second substrate; and a bonding layer for bonding the lower electrode unit and the upper electrode unit with each other so that the nozzle is vertically aligned with the ink discharge hole. According to this configuration, the ink used in the droplet jetting apparatus is easy to select, the electrostatic force can be efficiently concentrated and manufacturing processes of the droplet jetting apparatus can be simplified.