Motion segmentation in moving camera videos is a very challenging task because of the motion dependence between the camera and moving objects. Camera motion compensation is recognized as an effective approach. However...Motion segmentation in moving camera videos is a very challenging task because of the motion dependence between the camera and moving objects. Camera motion compensation is recognized as an effective approach. However, existing work depends on prior-knowledge on the camera motion and scene structure for model selection. This is not always available in practice. Moreover, the image plane motion suffers from depth variations, which leads to depth-dependent motion segmentation in 3D scenes. To solve these problems, this paper develops a prior-free dependent motion segmentation algorithm by introducing a modified Helmholtz-Hodge decomposition （HHD） based object-motion oriented map （OOM）. By decomposing the image motion （optical flow） into a curl-free and a divergence-free component, all kinds of camera-induced image motions can be represented by these two components in an invariant way. HHD identifies the camera-induced image motion as one segment irrespective of depth variations with the help of OOM. To segment object motions from the scene, we deploy a novel spatio-temporal constrained quadtree labeling. Extensive experimental results on benchmarks demonstrate that our method improves the performance of the state-of-the-art by 10%-20% even over challenging scenes with complex background.展开更多
We propose that the comparative psychological principle of “levels” be used as a new research methodology to investigate psi in humans. Rather than investigate psi in animals, as is sometimes done, we propose to inv...We propose that the comparative psychological principle of “levels” be used as a new research methodology to investigate psi in humans. Rather than investigate psi in animals, as is sometimes done, we propose to investigate psi in humans using animals as a receptor. Our approach is to start with simple organisms such as protozoans and progress to planarians and honey bees. The behavior of these organisms is well characterized and easily manipulated. Deviations from standard behavior patterns during an experiment on telekinesis can suggest psi effects. A major advantage of using invertebrates for psi research is that if a psi effect is found, the underlying mechanism of the effect can be analyzed using molecular and genetic tools. We provide suggestions on how telekinesis can be studied using this approach and suggest that Observation Oriented Modeling be used to analyze psi data.展开更多
OOT is one of the main technological sustainments in software industry,the OMT will be the prominent model-constructing method in the software-developing area. In this paper,the OOT's essential characters and its&...OOT is one of the main technological sustainments in software industry,the OMT will be the prominent model-constructing method in the software-developing area. In this paper,the OOT's essential characters and its'important meaning during the period of software-developing are discussed,the individual qualities of three kinds of models and the solid relations between each other are analyzed,the basic approaches of OOM in MIS are also pointed out. Moreover on this basis a modeling example built by this means is given in brief.展开更多
基金This work is supported by the National Natural Science Foundation of China under Grant No. 61503277.
文摘Motion segmentation in moving camera videos is a very challenging task because of the motion dependence between the camera and moving objects. Camera motion compensation is recognized as an effective approach. However, existing work depends on prior-knowledge on the camera motion and scene structure for model selection. This is not always available in practice. Moreover, the image plane motion suffers from depth variations, which leads to depth-dependent motion segmentation in 3D scenes. To solve these problems, this paper develops a prior-free dependent motion segmentation algorithm by introducing a modified Helmholtz-Hodge decomposition （HHD） based object-motion oriented map （OOM）. By decomposing the image motion （optical flow） into a curl-free and a divergence-free component, all kinds of camera-induced image motions can be represented by these two components in an invariant way. HHD identifies the camera-induced image motion as one segment irrespective of depth variations with the help of OOM. To segment object motions from the scene, we deploy a novel spatio-temporal constrained quadtree labeling. Extensive experimental results on benchmarks demonstrate that our method improves the performance of the state-of-the-art by 10%-20% even over challenging scenes with complex background.
文摘We propose that the comparative psychological principle of “levels” be used as a new research methodology to investigate psi in humans. Rather than investigate psi in animals, as is sometimes done, we propose to investigate psi in humans using animals as a receptor. Our approach is to start with simple organisms such as protozoans and progress to planarians and honey bees. The behavior of these organisms is well characterized and easily manipulated. Deviations from standard behavior patterns during an experiment on telekinesis can suggest psi effects. A major advantage of using invertebrates for psi research is that if a psi effect is found, the underlying mechanism of the effect can be analyzed using molecular and genetic tools. We provide suggestions on how telekinesis can be studied using this approach and suggest that Observation Oriented Modeling be used to analyze psi data.
文摘OOT is one of the main technological sustainments in software industry,the OMT will be the prominent model-constructing method in the software-developing area. In this paper,the OOT's essential characters and its'important meaning during the period of software-developing are discussed,the individual qualities of three kinds of models and the solid relations between each other are analyzed,the basic approaches of OOM in MIS are also pointed out. Moreover on this basis a modeling example built by this means is given in brief.
