Abstract: A method for constructing a convolutional neural network model based on farmland images is applied in an electronic device. The method includes following steps: obtaining a number of farmland images of at least one farmland; obtaining a plurality of standard segmentation farmland images corresponding to each of the farmland images; dividing the farmland images and the standard segmentation farmland images into a training image set and a test image set; taking the farmland images and the standard segmentation farmland images in the training image set as input of a convolutional neural network, and constructing a convolutional neural network model based on the farmland images; and verifying the convolutional neural network model by using the farmland images in the test image set and the standard segmentation farmland images, and optimizing a plurality of parameters of the convolutional neural network model based on the farmland images.

Abstract: A method is described for manipulating a view displayed on one or more follower participants' devices to track a view displayed on a lead participant's device. A request to manipulate the view displayed on the one or more follower participant devices is received. The lead participant is identified. The follower participants are identified. A lead view of the lead participant is determined. The lead view is communicated to the follower participants computing devices for display. A computing device and a non-transitory computer readable medium having instructions configured to implement the method are also described.

Abstract: Certain aspects involve managing permissions in collaborative workspaces using visual representations of clients. For example, a graphical interface can be displayed that represents a collaborative workspace and that includes visual representations of different clients accessing the workspace. A workspace application executed by a processor can determine that visual representations for at least two clients are positioned in a common region of the graphical interface. The workspace application can authorize the clients to collaboratively modify electronic content that is accessible via the graphical interface based on the visual representations being positioned in the common region. Subsequently, the workspace application can determine that the visual representations are positioned outside the common region and restrict access to the collaboratively modified content accordingly.

Abstract: An interactive input system includes a touch panel; and processing structure displaying on the touch panel at least one graphic object depicting a book having one or more page stacks. The processing structure displays each page stack of the book graphic object with a respective width that is based on a number of pages in the page stack. A method for manipulating a book object, and computer program embodied by a computer readable medium are also disclosed.

Abstract: Computerized methods and interactive input systems for manipulation of 3D objects are disclosed. An image of 3D object is displayed on a 2D interactive surface, and input is received and is interpreted for manipulating the 3D object. When the 3D object is selected, rotation control handles indicating available rotation directions are displayed. In one embodiment, the method comprises capturing images of a 3D input space, recognizing at least one object in the images, and comparing the recognized objects in the images to determine a difference therebetween based on a difference threshold. Depending on the outcome of the comparison, the recognized objects are emerged and associated with digital content, or only one of the recognized objects is maintained and associated with digital content.

Abstract: A method comprises detecting the location of a portable computing device within a collaboration system based on wireless communications between the portable computing device and a plurality of collaboration sites within the collaboration system; and displaying a map on the portable computing device that identifies the location of the portable computing device within the collaboration system and that specifies a path to a target collaboration site.

Abstract: An interactive input system comprises computing structure; and an input device detecting at least one physical object carrying a recognizable pattern within a three-dimensional (3D) input space and providing output to the computing structure, wherein the computing structure processes the output of the input device to: recognize the pattern carried by the at least one physical object in the 3D input space; and modify an image presented on a display surface by applying a transition to digital content associated with the at least one physical object based on a detected state of the at least one physical object.

Abstract: A method is described for manipulating a view displayed on one or more follower participants' devices to track a view displayed on a lead participant's device. A request to manipulate the view displayed on the one or more follower participant devices is received. The lead participant is identified. The follower participants are identified. A lead view of the lead participant is determined. The lead view is communicated to the follower participants computing devices for display. A computing device and a non-transitory computer readable medium having instructions configured to implement the method are also described.

Abstract: A computerized method of managing a collaboration space comprises partitioning the collaboration space into a plurality of tiles in a tree structure; and associating each graphic object with a tile in said tree structure; said tile being the smallest tile in the tree structure that substantially accommodate said graphic object.

Abstract: An interactive input system comprises an interactive surface; at least one proximity sensor in proximity with the interactive surface and generating output signifying user proximity to the interactive surface; and processing structure configured to process user input generated in response to user interaction with said interaction input system and output from the at least one proximity sensor, said processing structure controlling interactive input system operation based upon at least one of said user input and proximity sensor output.

Abstract: Certain aspects involve managing permissions in collaborative workspaces using visual representations of clients. For example, a graphical interface can be displayed that represents a collaborative workspace and that includes visual representations of different clients accessing the workspace. A workspace application executed by a processor can determine that visual representations for at least two clients are positioned in a common region of the graphical interface. The workspace application can authorize the clients to collaboratively modify electronic content that is accessible via the graphical interface based on the visual representations being positioned in the common region. Subsequently, the workspace application can determine that the visual representations are positioned outside the common region and restrict access to the collaboratively modified content accordingly.

Abstract: A method of modifying an annotation input on an interactive display in an interactive input system is described. Reference pixel values in a region of interest of a reference frame are determined. The region of interest is associated with the annotation. The reference pixel values are stored in memory. It is determined whether current pixel values in the region of interest of a current frame differ from the reference pixel values. The annotation is faded if the current pixel values in the region of interest differ from the reference pixel values. A computing device configured to implement the method and a computer-readable medium having stored thereon instruction to implement the method are also described.

Abstract: A method is described for manipulating a view displayed on one or more follower participants' devices to track a view displayed on a lead participant's device. A request to manipulate the view displayed on the one or more follower participant devices is received. The lead participant is identified. The follower participants are identified. A lead view of the lead participant is determined. The lead view is communicated to the follower participants computing devices for display. A computing device and a non-transitory computer readable medium having instructions configured to implement the method are also described.

Abstract: A computerized method of managing a collaboration space comprises partitioning the collaboration space into a plurality of tiles in a tree structure; and associating each graphic object with a tile in said tree structure; said tile being the smallest tile in the tree structure that substantially accommodate said graphic object.

Abstract: A method is described for manipulating a view displayed on one or more follower participants' devices to track a view displayed on a lead participant's device. A request to manipulate the view displayed on the one or more follower participant devices is received. The lead participant is identified. The follower participants are identified. A lead view of the lead participant is determined. The lead view is communicated to the follower participants computing devices for display. A computing device and a non-transitory computer readable medium having instructions configured to implement the method are also described.

Abstract: Computerized methods and interactive input systems for manipulation of 3D objects are disclosed. An image of 3D object is displayed on a 2D interactive surface, and input is received and is interpreted for manipulating the 3D object. When the 3D object is selected, rotation control handles indicating available rotation directions are displayed. In one embodiment, the method comprises capturing images of a 3D input space, recognizing at least one object in the images, and comparing the recognized objects in the images to determine a difference therebetween based on a difference threshold. Depending on the outcome of the comparison, the recognized objects are emerged and associated with digital content, or only one of the recognized objects is maintained and associated with digital content.

Abstract: A method comprises detecting the location of a portable computing device within a collaboration system based on wireless communications between the portable computing device and a plurality of collaboration sites within the collaboration system; and displaying a map on the portable computing device that identifies the location of the portable computing device within the collaboration system and that specifies a path to a target collaboration site.

Abstract: A method of modifying an annotation input on an interactive display in an interactive input system is described. Reference pixel values in a region of interest of a reference frame are determined. The region of interest is associated with the annotation. The reference pixel values are stored in memory. It is determined whether current pixel values in the region of interest of a current frame differ from the reference pixel values. The annotation is faded if the current pixel values in the region of interest differ from the reference pixel values. A computing device configured to implement the method and a computer-readable medium having stored thereon instruction to implement the method are also described.

Abstract: A method of operating an interactive input system, comprises detecting user interaction with an interactive surface; acquiring schedule information from a scheduler; and transitioning said interactive input system to an operating mode according to at least one of said user interaction and said schedule information.

Abstract: A method of establishing a collaborative event comprises creating an event session having an event identifier and setting up a wireless network to which one or more participant computing devices can connect having a network identifier associated with said event identifier.