Abstract: A method of classifying a scene for each person in a video, the method including: detecting a face within input video frames; detecting a shot change of the input video frames; extracting a person representation frame in the shot; performing a person clustering in the extracted person representation frame based on time information; detecting a scene change by separating a person portion from a background based on face extraction information, and comparing the person portion and the background; and merging similar clusters from the extracted person representation frame and performing a scene clustering for each person.

Abstract: A method, system, and medium of providing various types of broadcast services such as a record, a summary, a navigation and a real-time event service with respect to a broadcast content, utilizing a home server, according to a user's request. A broadcast service providing method includes: storing broadcast summary data, navigation data and real-time event data which is generated by analyzing received broadcast data according to a broadcast record request from a user's portable device, in a database; and providing the user's portable device with a streaming service with respect to the stored broadcast summary data, the navigation data and the real-time event data, according to a summary selection request from the user's portable device.

Abstract: A method, system, and medium of providing various types of broadcast services such as a record, a summary, a navigation and a real-time event service with respect to a broadcast content, utilizing a home server, according to a user's request. A broadcast service providing method includes: storing broadcast summary data, navigation data and real-time event data which is generated by analyzing received broadcast data according to a broadcast record request from a user's portable device, in a database; and providing the user's portable device with a streaming service with respect to the stored broadcast summary data, the navigation data and the real-time event data, according to a summary selection request from the user's portable device.

Abstract: A method of classifying a scene for each person in a video, the method including: detecting a face within input video frames; detecting a shot change of the input video frames; extracting a person representation frame in the shot; performing a person clustering in the extracted person representation frame based on time information; detecting a scene change by separating a person portion from a background based on face extraction information, and comparing the person portion and the background; and merging similar clusters from the extracted person representation frame and performing a scene clustering for each person.

Abstract: An apparatus for and a method of detecting a gradual shot transition in a moving picture The method includes: setting at least one feature point of a frame included in the moving picture, tracking the set at least one feature point, and setting a feature point of a subsequent frame, from the tracked at least one feature point; calculating a feature value corresponding to each feature point of each of the frames; and comparing corresponding feature values of corresponding feature points which are tracked for each of the frames, and determining that a gradual shot transition between the frames occurs when the comparison value is greater than a predetermined threshold value.

Abstract: A method, system, and medium of providing various types of broadcast services such as a record, a summary, a navigation and a real-time event service with respect to a broadcast content, utilizing a home server, according to a user's request. A broadcast service providing method includes: storing broadcast summary data, navigation data and real-time event data which is generated by analyzing received broadcast data according to a broadcast record request from a user's portable device, in a database; and providing the user's portable device with a streaming service with respect to the stored broadcast summary data, the navigation data and the real-time event data, according to a summary selection request from the user's portable device.

Abstract: An apparatus detects the number of tracks traversed on an optical disk. The apparatus includes a differentiation part for differentiating an output signal of a bandpass filter provided on an adjacent stage which eliminates a low DC component, a high frequency component and noise of an inputted modulation signal. A sample trigger generating circuit generates top and bottom signals in response to a data signal outputted through the differentiation part and a signal outputted through a comparator. A top hold part and a bottom hold part holds the data signal at top and bottom. A subtraction part performs a subtraction to obtain a difference between the top and bottom signals outputted from the top and bottom hold parts, thereby resulting in counting the number of the tracks traversed, while increasing a jumping speed required for a detection of the number of the tracks traversed.

Abstract: A clock recovery circuit is disclosed for recovering the data of a non-return to zero signal received at an optical transceiver. The clock recovery circuit includes an active element mixer for doubling the frequency of the received non-return to zero encoded digital signal. The mixer includes a delay element for delaying the received non-return to zero signal and an exclusive-OR circuit for exclusive-ORing the delayed and received non-return to zero signals. A SAW filter is also provided for recovering a clock from the frequency doubled signal outputted by the mixer.

Abstract: A method and arrangement for resolution enhancement of a coordinate input device. The method includes the steps of receiving a predetermined number of light beams, which are generated from a light source and passed through a rotating grating disc, by a light detector; detecting the intensity of the light beams by the light detector so as to receive a continuous response voltage signal; converting the continues response voltage signal to a digital signal; and distinguishing the digital signal as at least three different detecting modes by a plurality of predetermined critical values for enhancing the resolution of the coordinate input device.

Abstract: An apparatus and method for approaching a focusing region are provided. The apparatus for approaching the focusing region includes a focus error detector, a signal envelope detector, a focusing region detector, a pulse generator for generating search pulses, a time counter, an offset generator, an adder, an actuator driver and a controller. The apparatus approaches the focusing region based on the generating search pulses, which are output in response to a signal generated by the signal envelope detector and a signal output by the focusing region detector. When a subsequent approach to the focusing region is made after finishing a first approach to the focusing region, the actuator is controlled by adding the search pulses to an offset voltage calculated when the first approach to the focusing region was performed to quickly position the object lens in the focusing region.