Abstract: The present invention relates to a method and electronic device for a gesture-based key input and, more particularly, to a method and electronic device for a gesture-based key input, wherein an input region corresponding to a virtual keyboard is set according to any one of a single-hand typing mode and a double-hand typing mode and a key input is obtained based on gesture for the set input region. A gesture-based key input method according to an embodiment of the present invention includes displaying a virtual keyboard, setting an input region, corresponding to the displayed virtual keyboard, according to a typing mode selected from among a single-hand typing mode and a double-hand typing mode, recognizing gesture for the input region, and obtaining a key input based on the recognized gesture.

Abstract: Disclosed are a display device and a control method thereof. The display device and the control method include a camera acquiring an image including a gesture made by a user, and a controller extracting an object making the gesture from the image acquired by the camera, and setting a specific spot in the extracted object to be a reference point of a movement of the object, the controller fixing the reference point to a set location regardless of a change in a shape of the extracted object. Accordingly, a reference point is set at a specific spot of an object having made a gesture corresponding to the acquisition of control thereon, thereby allowing for the accurate and effective recognition of a gesture made by a user.

Abstract: An electronic device for displaying a three-dimensional image and a method of using the same, and more particularly, to an electronic device for displaying a three-dimensional image and a method of using the same that can provide a user interface for controlling positions of a three-dimensional icon and a virtual layer including the same according to a user gesture are provided. The electronic device for displaying a three-dimensional image includes a camera for photographing a gesture action in three-dimensional space; a display unit for displaying a virtual layer including at least one object with a first depth at three-dimensional virtual space; and a controller for selectively performing one of a first action of changing a depth in which the virtual layer is displayed to a second depth and a second action of changing a position of the object, according to the gesture action based on a gesture input mode.

Abstract: A multimedia device includes a first image sensor to acquire a first image, a second image sensor to acquire a second image, and a processor to determine coordinate information of the person in the first image and to extract a feature of the person in the second image based on the coordinate information. The first and second image sensors have overlapping fields of view, the coordinate information provides an indication of a distance to the person, and the processor compares the extracted feature to reference information and recognizes the person based on the comparison.

Abstract: A gesture-based user interface method and corresponding apparatus that includes a light source configured to irradiate light to a user, an image sensor configured to receive light reflected from the user and output a depth image of the user, an image processor configured to recognize a user gesture based on the depth image output from the image sensor, and a controller configured to control the light source and the image sensor such that at least one of an optical wavelength of the light source, an optical power level of the light source, a frame rate of the light source and a resolution of the depth image is adjusted according to a gesture recognition mode.

Abstract: The present invention relates to a method and electronic device for a gesture-based key input and, more particularly, to a method and electronic device for a gesture-based key input, wherein an input region corresponding to a virtual keyboard is set according to any one of a single-hand typing mode and a double-hand typing mode and a key input is obtained based on gesture for the set input region. A gesture-based key input method according to an embodiment of the present invention includes displaying a virtual keyboard, setting an input region, corresponding to the displayed virtual keyboard, according to a typing mode selected from among a single-hand typing mode and a double-hand typing mode, recognizing gesture for the input region, and obtaining a key input based on the recognized gesture.

Abstract: Disclosed are a display device and a control method thereof. The display device and the control method include a camera acquiring an image including a gesture made by a user, and a controller extracting an object making the gesture from the image acquired by the camera, and setting a specific spot in the extracted object to be a reference point of a movement of the object, the controller fixing the reference point to a set location regardless of a change in a shape of the extracted object. Accordingly, a reference point is set at a specific spot of an object having made a gesture corresponding to the acquisition of control thereon, thereby allowing for the accurate and effective recognition of a gesture made by a user.

Abstract: A gesture-based user interface method and corresponding apparatus that includes a light source configured to irradiate light to a user, an image sensor configured to receive light reflected from the user and output a depth image of the user, an image processor configured to recognize a user gesture based on the depth image output from the image sensor, and a controller configured to control the light source and the image sensor such that at least one of an optical wavelength of the light source, an optical power level of the light source, a frame rate of the light source and a resolution of the depth image is adjusted according to a gesture recognition mode.

Abstract: An electronic device for displaying a three-dimensional image and a method of using the same, and more particularly, to an electronic device for displaying a three-dimensional image and a method of using the same that can provide a user interface for controlling positions of a three-dimensional icon and a virtual layer including the same according to a user gesture are provided. The electronic device for displaying a three-dimensional image includes a camera for photographing a gesture action in three-dimensional space; a display unit for displaying a virtual layer including at least one object with a first depth at three-dimensional virtual space; and a controller for selectively performing one of a first action of changing a depth in which the virtual layer is displayed to a second depth and a second action of changing a position of the object, according to the gesture action based on a gesture input mode.

Abstract: A display device and a method of controlling the same are provided. The display device comprises: a camera for acquiring an image comprising a gesture taken by a user; and a controller for extracting the gesture from the image acquired by the camera and for setting a specific point of an object in which the gesture is performed as a reference point when the gesture corresponding to acquisition of a control right is comprised in the extracted gesture. Therefore, by setting a specific point of an object in which the gesture corresponding to acquisition of a control right is performed as a reference point, a gesture taken by a user can be accurately and effectively recognized.

Abstract: A multimedia device includes a first image sensor to acquire a first image, a second image sensor to acquire a second image, and a processor to determine coordinate information of the person in the first image and to extract a feature of the person in the second image based on the coordinate information. The first and second image sensors have overlapping fields of view, the coordinate information provides an indication of a distance to the person, and the processor compares the extracted feature to reference information and recognizes the person based on the comparison.