Abstract: A method and system provide light to project to an operation space so that a received image from the operation space will include, if an object is in the operation space, a bright region due to the reflection of light by the object, and identify a gesture according to the variation of a barycenter position, an average brightness, or an area of the bright region in successive images, for generating a corresponding command. Only simple operation and calculation is required to detect the motion of an object moving in the X, Y, or Z axis of an image, for identifying a gesture represented by the motion of the object.

Abstract: The present invention discloses an optical touch panel system and a positioning method for positioning an object existing in a touch control area. The system includes: at least one reflective element disposed on a side of the touch control area; at least one light guide module disposed on a side of the touch control area adjacent to or opposite the reflective element and emitting light; an image sensor capturing an image of the object; a plurality of photo detectors arranged on a side of the touch control area adjacent to the image sensor and sensing the object to obtain shade information; and a processor calculating the coordinates of the object according to the image and the shade information.

Abstract: An image capturing apparatus comprising: a light source, for transmitting incident light to an objective without utilizing any medium besides air, such that the light emits from the objective to generate passing-through light; and a sensor, for capturing an image of the objective according to the passing-through light.

Abstract: A handheld pointing device includes a body, an image sensing module and a processing circuit. The image sensing module is disposed in the body and configured to sense a reference light source and thereby capturing an image including of the reference light source. The processing circuit, disposed in the body and electrically connected to the image sensing module, is configured to obtain the image including of the reference light source, calculate a coordinate of the image of the reference light source relative to the image captured by the image sensing module, and correct the coordinate according to a distance or a distance change between the body and the reference light source. An operation method of a handheld pointing device is also provided.

Abstract: An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.

Abstract: The present invention discloses a touch panel apparatus, system and an operation method using for the same system. The apparatus recognizes a track of an object for executing a corresponding gesture function, and it includes: a touch control surface for the object to move on or above to form the track; at least one image sensor for capturing a plurality of continuous pictures including images of the object; and a processor for obtaining a plurality of displacement vectors according to changes in positions of the images of the object, comparing the displacement vectors with a set of basic vectors to obtain a code or a set of codes, and recognizing the code or the set of codes to execute the corresponding gesture function.

Abstract: The present invention discloses an optical touch panel system, an optical sensing module, and an operation method using for the same system. The system recognizes a track of an object moving on or above a touch control surface to determine a corresponding gesture function; it includes a touch control surface, at least one image sensor, and a processor. The touch control surface includes at least two touch control areas. The image sensor captures a plurality of continuous pictures including the images of the objects. The processer determines which touch control area the object is moving on or above according to a starting position or a path of the track, and executes a gesture function corresponding to the track and the touch control area.

Abstract: An electronic system comprises an image-sensing device and a processor coupled with the image-sensing device. The image-sensing device includes an image-sensing area configured to generate a picture. The picture includes a noisy region. The processor is configured to select a tracking region from the portion of the picture outside of the noisy region. The tracking region corresponds to an operative region of the image sensing area.

Abstract: The present invention discloses an object tracking apparatus including a reference object, an optical sensor and a controller. The reference object has a plurality of light emitting devices, for generating an optical signal. The optical sensor is for detecting the optical signal and generating an identification signal in response to the optical signal. The controller is for generating a control signal according to the identification signal and outputting the control signal to the reference object, thereby adaptively adjusting a light emitting number or light emitting intensity of the plurality of light emitting devices. The present invention discloses a method for controlling an object tracking apparatus.

Abstract: An optical touch control apparatus, which comprises: a light source; a light guiding board, for emitting the light, including at least one reflecting region for generating reflected light for adjusting; a detecting surface, for generating an object image when a distance between a object and the detecting surface is lower than a predetermined distance; an image sensor, for computing a brightness for adjusting that the light source generates to the light guiding board according to the reflected light for adjusting, and for catching a plurality of frames of the object image; and a control unit, for adjusting the light source according to the brightness for adjusting, or for adjusting the image sensor according to the brightness for adjusting, such that the image sensor can sense a plurality of adjusted frames; wherein the control unit computes a location of the object on the detecting surface according to the adjusted frames.

Abstract: A multipoint positioning method for a touchpad including the steps of: scanning a touchpad to retrieve two-dimensional data; calculating an object area and a number of maxima of local maxima in the two-dimensional data; comparing the object area with an area threshold when the number of maxima is larger than 1; and identifying positions of the local maxima as a plurality of contact positions when the object area is larger than or equal to the area threshold.

Abstract: An operation method of an optical touch system is provided. The optical touch system includes a touch surface, a light sensing unit, a switch unit and an analog-to-digital conversion unit. The light sensing unit includes a plurality of light sensing elements. The operation method includes: turning on one specific light sensing element group and thereby configuring the light sensing elements thereof to sense the light on the touch surface; and controlling the switch unit to electrically connect the light sensing elements of the turned-on light sensing element group to the input terminals of the analog-to-digital conversion unit, respectively, so as to transmit the sensing signals outputted from the turned-on light sensing element group to the input terminals, and thereby configuring the analog-to-digital conversion unit to generate at least one digital output signal according to the sensing signals supplied to the input terminals thereof. An optical touch system is also provided.

Abstract: An optical touch control apparatus, for detecting displacement between an object and the optical touch control apparatus. The optical touch control apparatus comprises: an object detecting apparatus, for detecting the object to generate an object image, having a first detecting area in a first mode and having a second detecting area in a second mode, wherein the first detecting area is larger than the second detecting area; an image sensor, for capturing at least one frame of the object image; and a control unit, for adjusting an image capturing area of the image sensor, according which one of the first detecting area and the second detecting area the object detecting apparatus utilizes.

Abstract: An optical tracking device includes a light source, an image sensor and a processing unit. The light source emits light at a lighting frequency. The image sensor outputs an operating image when the light source is being turned on and outputs a background image when the light source is being turned off. The processing unit is configured to obtain background information from the background image, calculate a differential image of the operating image and the background image, obtain object information from the differential image and compare the background information and the object information thereby removing background noise.

Abstract: An optical touch control method includes steps of: providing a bright background from at least one edge of a touch surface in a first period; providing illumination light to the touch surface in a second period; capturing a first image of an indicator object blocking a portion of the bright background in the first period; and capturing a second image of the indicator object reflecting the illumination light in the second period. An optical touch system is also provided.

Abstract: An interactive system includes a display, a processor and a remote controller. The display includes at least one reference beacon for providing light with a predetermined feature. The remote controller includes an image sensor configured to capture an image containing the reference beacon and calculates an aiming coordinate according to an imaging position of the reference beacon in the captured image. The processor calculates a scale ratio of a pixel size of the display with respect to that of the image captured by the image sensor and moves a cursor position according to the scale ratio and the aiming coordinate.

Abstract: The present invention discloses embodiments for an optical touch systems and methods. One embodiment of the present invention is directed to an optical touch system that includes at least two image sensors configured to detect a plurality of objects over a touch surface to generate a plurality of object images; a plurality of first light receiving elements, wherein the first light receiving elements are arranged on a side of the touch surface along a first direction and are configured to detect the objects; and a processing unit configured to calculate a plurality of candidate coordinate data, based on the object images, and select the coordinate data that represents coordinate data of the objects from the candidate coordinate data, based on detection data of the first light receiving elements.

Abstract: An image detecting method, comprising: controlling a synchronizing controller to transmit a first activating signal to a light source controller; controlling the light source controller to control at least one light source to generate a predetermined radiating pattern, and controlling the light source controller to transmit back a first responding signal to the synchronizing controller when the light source controller receives the first activating signal; and controlling an image sensor to start an image detecting when the synchronizing controller receives the first responding signal.

Abstract: A displacement detection device includes an image sensor, a light source and a processing unit. The image sensor is configured to successively capture images. The light source provides light with an emission frequency and an emission duration for the image sensor in capturing the images. The processing unit is configured to calculate a displacement according to the images and to adjust both the emission frequency and the emission duration according to the displacement.

Abstract: A pupil detection device includes an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball. The image sensor captures at least one image frame of the eyeball to be served as an image to be identified. The processing unit is configured to calculate a minimum gray value in the image to be identified and to identify a plurality of pixels surrounding the minimum gray value and having gray values within a gray value range as a pupil area.