Abstract: Bit streams are divided on a block-by-block basis based on information of bit numbers and a parity bit added to each bit stream is checked to generate a switching signal. Either each bit stream or a proximate bit stream for each bit stream is selected as an optimum bit stream based on the switching signal, wherein the proximate bit stream is generated based on degrees of proximity for reference bit streams spatially adjacent to each bit stream, and the optimum bit stream is decoded to generate decoded data on a block-by-block basis.

Abstract: The photosensitive portion of an image sensor which is used for monitoring a forward view of a vehicle on a roadway is formed that is horizontally elongated with an aspect ratio in a range from 1:1.8 to 1:3.1 adjustable in correspondence with the design speed of the roadway, the minimum radius of curvature R, the maximum longitudinal slope S of the roadway, the braking distance D of the vehicle, and the number of lanes to be imaged. Here, the aspect ratio of the photosensitive portion is set at a ratio within a range from 1:1.8 to 1:3.1 in correspondence with the conditions of the design speed of the roadway and of the number of lanes to be imaged including the lane in which the vehicle is driving.

Abstract: A picture compressing apparatus compresses pictures which are classified into three types of pictures. They are an I picture that is intra-frame coded, a P picture that is forward inter-frame coded, and a B picture that is forward/backward inter-frame coded. An apparatus controlling device checks the ID of existing CPU 2 and the CPU ID of program currently created and determines whether or not they match. When the determined result is No, the apparatus controlling device extracts a compressed code of basic modules and differential modules corresponding to the existing CPU. With reference to a code table 17, a decoder decodes the compressed codes to generate an optimun program for the existing CPU. The picture reproducing apparatus performs the similar process to that of the picture compressing apparatus.

Abstract: A method of motion compensated frame interpolation wherein an intermediate image frame is generated between two image frames in a motion image sequence. The method includes the steps of: identifying a moving foreground or object and the background for two successive frames in a motion image sequence; estimating a velocity vector field for the foreground, and a velocity vector field for the background; using the estimated velocity vector field for the foreground to identify the location of the foreground and the background in the intermediate image; and obtaining the intermediate image by using the foreground velocity vector field to perform motion compensated interpolation for the foreground in the intermediate image and using the background velocity vector field to perform motion compensated interpolation for the background in the intermediate image.

Abstract: A method and an apparatus for tracking a target wherein a shape of a target is extracted from a former image which includes an initial image of the target for tracking, and then an area including the shape of the target is extracted as a correlation area. Based on the correlation area, a checking area is extracted from a current image to check for a correlation. By utilizing a correlation function, the correlation between the former image and the current image is calculated. A location change of the target is calculated to estimate a movement of the target, on the basis of the calculated correlation. Compensating the estimated movement during operation of a camera, the camera is controlled so that a gazing point of the camera can track the target.

Abstract: An automatic tracking device is disclosed that extracts data from the comite video output signal of a camera and uses it to electronically isolate an object in the image information on the video output signal and follows the object with a crosshair added to the video by the autotracking device. The autotracking device generates steering signals that are applied to the camera directing circuits to cause the camera to automatically follow the object as the object moves.

Abstract: A method to provide automatic content-based video indexing from object motion is described. Moving objects in video from a surveillance camera 11 detected in the video sequence using motion segmentation methods by motion segmentor 21. Objects are tracked through segmented data in an object tracker 22. A symbolic representation of the video is generated in the form of an annotated graphics describing the objects and their movement. A motion analyzer 23 analyzes results of object tracking and annotates the graph motion with indices describing several events. The graph is then indexed using a rule based classification scheme to identify events of interest such as appearance/disappearance, deposit/removal, entrance/exit, and motion/rest of objects. Clips of the video identified by spatio-temporal, event, and object-based queries are recalled to view the desired video.

Abstract: A video display appliance having a device for eliminating the radiation wave emitted from a cathode ray tube. The appliance includes a shielding wire wound one to several times along the periphery of a degaussing coil. The pulses having the same level and phase, but inverse polarity to those applied to an anode of the cathode ray tube, is applied to the shielding wire, thereby offsetting the radiation wave emitted from the cathode ray tube.

Abstract: A monitoring system for an agricultural vehicle. The vehicle is provided with a video camera and an associated video monitor. The video monitor is located in a cab of the vehicle and the video camera is oriented facing the rear of the vehicle. When an agricultural implement is connected to the vehicle, the monitor may be used to view the implement without turning away from the direction of travel.

Abstract: A method and an apparatus for reordering frames in MPEG coder/decoder, in which input image frames of a displaying order are transformed to a transmitting order, and conversely, transmitted order to the displaying order, for coding and decoding by dividing image frame data into I-pictures, P-pictures, and B-pictures, comprise the steps of: determining whether current input image frames are B-pictures or not, and by-passing to an outer frame buffer if determined to be B-pictures; inputting line-scanned pixel data for B-pictures and storing the line-scanned data into a slice buffer in slice units; reading the stored data from the slice buffer and storing the read data into an inner frame buffer in macro block (MB) units; determining whether the processed slice is the last frame or not and repeating the previous steps, if not; and repeating the above entire steps for the next picture if the processed slice is the last frame.