Abstract: A debugging tool comprises user input apparatus to receive user input from a debugging user, computer storage configured to hold a piece of code to be debugged, the code embodying a state machine defining a user input action, a display configured to display a timeline, and at least one processor configured to execute an iterative debugging process for visualising behaviour of the code on the timeline. The debugging process is driven by changes in the user input received at the user input apparatus and is performed so as to represent on the timeline a sequence of expected user input states of the state machine as they are actualized by the debugging user according to the permitted transitions.

Abstract: A gesture recognition method comprises receiving at a processor from a sensor a sequence of captured signal frames for extracting hand pose information for a hand and using at least one trained predictor executed on the processor to extract hand pose information from the received signal frames. For at least one defined gesture, defined as a time sequence comprising hand poses, with each of the hand poses defined as a conjunction or disjunction of qualitative propositions relating to interest points on the hand, truth values are computed for the qualitative propositions using the hand pose information extracted from the received signal frames, and execution of the gesture is tracked, by using the truth values to determine which of the hand poses in the time sequence have already been executed and which of the hand poses in the time sequence is expected next.

Abstract: A system for creating hand gestures representations, comprising an interface for interacting with a user, a storage storing a plurality of discrete pose values and discrete motion values, a memory storing a gesture visual builder code, one or more processors coupled to the interface, storage and memory to execute the gesture visual builder code allowing the user to create hand gesture. The gesture visual builder code comprising code instructions to present the user with a GUI which displays a hierarchical menu driven interface, code instructions to receive iteratively user instructions from the user using the hierarchical menu driven interface, for creating a logical sequence of hand gesture by defining one or more hand pose features records and hand motion features records and code instructions to generate a code segment defining the one or more hand pose/motion features records through the discrete pose/motion values respectively.

Abstract: A gesture recognition method comprises receiving at a processor from a sensor a sequence of captured signal frames for extracting hand pose information for a hand and using at least one trained predictor executed on the processor to extract hand pose information from the received signal frames. For at least one defined gesture, defined as a time sequence comprising hand poses, with each of the hand poses defined as a conjunction or disjunction of qualitative propositions relating to interest points on the hand, truth values are computed for the qualitative propositions using the hand pose information extracted from the received signal frames, and execution of the gesture is tracked, by using the truth values to determine which of the hand poses in the time sequence have already been executed and which of the hand poses in the time sequence is expected next.

Abstract: A debugging tool comprises user input apparatus to receive user input from a debugging user, computer storage configured to hold a piece of code to be debugged, the code embodying a state machine defining a user input action, a display configured to display a timeline, and at least one processor configured to execute an iterative debugging process for visualising behaviour of the code on the timeline. The debugging process is driven by changes in the user input received at the user input apparatus and is performed so as to represent on the timeline a sequence of expected user input states of the state machine as they are actualized by the debugging user according to the permitted transitions.

Abstract: A system for creating hand gestures representations, comprising: (a) An interface for interacting with a user. (b) A storage storing a plurality of discrete pose values and discrete motion values. (c) A memory storing a gesture visual builder code. (d) One or more processors coupled to the interface, storage and memory to execute the gesture visual builder code allowing the user to create hand gesture. The gesture visual builder code comprising: (1) Code instructions to present the user with a GUI which displays a hierarchical menu driven interface. (2) Code instructions to receive iteratively user instructions from the user using the hierarchical menu driven interface, for creating a logical sequence of hand gesture by defining one or more hand pose features records and hand motion features records. (3) Code instructions to generate a code segment defining the one or more hand pose/motion features records through the discrete pose/motion values respectively.