Abstract: A method, computer program product, and system for detecting and displaying user status is described. A method may comprise receiving activity data from at least one of an audio input device, a video input device, and a command input device. The method may further comprise calculating a text availability index corresponding, at least in part, to a likelihood of a user to be available for text communication, a voice availability index corresponding, at least in part, to a likelihood of the user to be available for voice communication, and a video availability index corresponding, at least in part to a likelihood of the user to be available for video communication, wherein at least one of the text availability index, the voice availability index, and the video availability index is based upon, at least in part, the activity data.

Abstract: A moving object detection method and an image processing system thereof are provided. First, a pixel-wise distance of a received image to a reference image is computed to obtain a distance map. A histogram analysis is performed on the distance map to obtain a distance distribution. An entropy value of the distance distribution is computed and a peak distance value which is with a maximum occurrence probability in the distance distribution is searched out. Then, by using a mapping rule, the entropy value and the peak distance value are transformed into a decision threshold value. The decision threshold value is applied in classifying the pixels of the distance map into a group of foreground attributes and a group of background attributes and thereby moving objects in the current image are obtained.

Abstract: Strings entered into a computer system are converted to a common language. The process of converting strings to a common language comprises determining a user-selected target language, associating a user-selected primary input language with the target language and associating a user-selected secondary input language with the target language. The process further comprises obtaining a string of at least one character, converting the obtained string from the primary input language to the target language if the obtained string corresponds to a valid string in the primary input language and converting the obtained string from the secondary input language to the target language if the obtained string corresponds to a valid string in the secondary input language and is not a valid string in the primary input language.

Abstract: A foreground image separation method is disclosed to separate dynamic foreground and static background in a sequence of input images which have been processed either with automatic white balance or brightness control by the camera. First, an input image is received from the camera, and then a white balance or brightness compensation is performed to the input image according to a reference image to generate a compensated image with background color and background brightness which are approximately similar to that of the reference image. Finally, a background subtraction algorithm is performed to the compensated image to generate a background separation result. The background subtraction algorithm could be a Gaussian Mixture Model based algorithm. The method could process successive images received from the camera to continuously generate background separation results and update the reference image accordingly, such that video surveillance system could adapt to the change of illumination.

Abstract: Disclosed is an object detection method and system in an image plane. A Hidden Markov Model (HMM) is employed and its associated parameters are initialized for an image plane. Updating HMM parameters is accomplished by referring to the previous estimated object mask in a spatial domain. With the updated HMM parameters and a decoding algorithm, a refined state sequence is obtained and a better object mask is restored from the refined state sequence. Consequently, estimation of the HMM parameters can be rapidly achieved and robust object detection can be effected. This allows the resultant object mask to be closer to the real object area, and the false detection in the background area can be decreased.

Abstract: Disclosed is a method and apparatus for adaptive object detection, which may be applied in detecting an object having an ellipse feature. The method for adaptive object detection comprises performing an object shape detection based on the extracted foreground from the object; determining whether the object being occluded according to the detected feature statistic information of the object; if the object being not occluded, determining whether to switching object shape detection to ellipse detection; if the object being occluded or necessary to switch to ellipse detection, performing ellipse detection on the foreground; when the foreground being detected to have ellipse features, the object is continuously tracked; and when the current detection being ellipse detection, determining whether the ellipse detection being able to switch back to object shape detection.

Abstract: The present invention discloses an auxiliary cooling water supplier for a dental implant device, which comprises a main machine having a built-in water-supply module, a conduit, an outlet module, a flowrate control circuit and a pedal. The main machine further comprises a control unit; the control unit is connected to the flowrate control circuit, and the flowrate control circuit is connected to the water-supply module. The user can use the control unit to regulate the flowrate of the outlet module or to switch between an automatic water-supply mode and a pedal control mode. The auxiliary cooling water supplier for a dental implant device of the present invention has the advantages of lightweight, portability, maneuverability, simple structure and easy operation.

Abstract: The present invention discloses an illuminator for a dental drill, which comprises a body having a front end and a rear end and having an accommodation room thereinside, a drill installed at the front end of the body, and an illuminator having a light-emitting diode (LED). The body further has an opening-located portion, and the opening-located portion has a through-hole. The LED is installed in the through-hole and has a light-emitting portion facing outward from the through-hole. The present invention adopts a LED as the light source and is simpler and cheaper than the conventional illuminator using an electric bulb or optical fibers.

Abstract: Disclosed is an object detection method and system in an image plane. A Hidden Markov Model (HMM) is employed and its associated parameters are initialized for an image plane. Updating HMM parameters is accomplished by referring to the previous estimated object mask in a spatial domain. With the updated HMM parameters and a decoding algorithm, a refined state sequence is obtained and a better object mask is restored from the refined state sequence. Consequently, estimation of the HMM parameters can be rapidly achieved and robust object detection can be effected. This allows the resultant object mask to be closer to the real object area, and the false detection in the background area can be decreased.

Abstract: A method for corresponding, evolving and tracking feature points in a three-dimensional space performs corresponding, evolving and tracking on the features points after transferring the two-dimensional feature point information in an image information into a corresponding state in the three-dimensional space. A recursion is employed to continuously update the states of the feature points in the three-dimensional space and evaluate the stability of the feature points by evolving. Hence, the obtained three-dimensional feature point information has a stronger corresponding relationship than the feature point information conventionally generated on the basis of the two-dimensional feature point information. As a result, a more precise three-dimensional scene can then be constructed.

Abstract: The present invention discloses a transmission device for agitator of impression material, wherein belt pulleys are installed on the V-frame of the agitator of impression material and the fixing pole of a motor; complementary rollers are also installed on the V-frame, and belts wrap over those belt pulleys, those complementary rollers, and an annular trench on the perimeter of the containing cup. When the containing basin on the V-frame is driven to rotate by the motor of the agitator of impression material, the containing cup is driven to rotate opposite the rotating direction of the containing basin via the interlinked actuation of the aforementioned belts, belt pulleys, and complementary rollers, so that the impression material can be evenly mixed by the high-speed rotation and can be densified by the centrifugal force and the air bulbs inside the impression material can be eliminated.

Abstract: A transcoder for transcoding digital video signals includes a decoder and an encoder. In the decoder, an end-of-block (EOB) position of an incoming block received by the decoder is determined and a discrete cosine transform (DCT) block type is determined based on the determined EOB position. A reduced number of DCT coefficients is computed in a subsequent inverse DCT computation based on the DCT block type. In the encoder, if the incoming block is intercoded, no DCT coefficients are computed after the EOB of the incoming blocks is performing a DCT. Further, in the encoder when the incoming block is intercoded, an algorithm is applied to predict which DCT coefficients may become zero after a subsequent quantization operation, and only DCT coefficients that may not become zero are computed in performing the DCT.

Abstract: An optical curing apparatus consists of a body, a gun and control circuits located in the body and the gun to solidify dental resin filling in the decayed teeth in the shortest time so that the dental resin will be filled in the teeth firmly and repeated teeth decay may be avoided. The control circuits may control light projecting time period and adjust optical output power, and detect if optical power output is normal. When the optical output power is below a preset standard value, the apparatus will generate an alert to notify users to replace the lamp set in the curing apparatus.

Abstract: A transcoder for transcoding digital video signals includes a decoder and an encoder. In the decoder, an end-of-block (EOB) position of an incoming block received by the decoder is determined and a discrete cosine transform (DCT) block type is determined based on the determined EOB position. A reduced number of DCT coefficients is computed in a subsequent inverse DCT computation based on the DCT block type. In the encoder, if the incoming block is interceded, no DCT coefficients are computed after the EOB of the incoming blocks is performing a DCT. Further, in the encoder when the incoming block is intercoded, an algorithm is applied to predict which DCT coefficients may become zero after a subsequent quantization operation, and only DCT coefficients that may not become zero are computed in performing the DCT.