Abstract: In a recording apparatus, a high-speed camera continuously shoots a series of images at a high shutter speed. Next, an MV calculating unit calculates motion vectors, based on a sequential relationship of the series of images shot by the high-speed camera. Then, a recorder records the images shot by the high-speed camera, together with the motion vectors corresponding to the images. On the other hand, in a reproducing apparatus, the series of images recorded by the recorder are reproduced, with the motion vectors recorded by the recording apparatus added thereto.

Abstract: A shot size identifying device (1) includes an edge detecting element (102) for detecting edges in a frame constituting a video, a connected edge area detecting element (103) for detecting connected edge areas in which the detected edges are connected, an edge area counting element (104) for counting the number of edge areas which is the total number of the detected connected edge areas for each frame, and shot size identifying element (110, 113) for identifying the frame as a long shot if the number of counted edge areas is larger than the threshold value of a first edge area. This makes it possible to easily and immediately identify a shot size.

Abstract: An editing device selects, among the video of the video data, a scene such as a backlit scene and a camera shake scene which has a characteristic different from a necessary scene, as an unnecessary scene, and reproduces the selected unnecessary scene on a display unit. Accordingly, the editing device allows the user to select necessary scenes and unnecessary scene from among the camera shake scenes or the backlit scenes. In addition, for example, if a camera shake scene is present in similar videos that are captured at substantially identical locations, the user can recognize that the camera scene is present without conducting an operation to select the camera shake scene.

Abstract: Frequency analysis is performed on an image signal on a pixel by pixel basis or on a block by block basis, each block including a plurality of pixels, for each frame of the image signal. Then, a motion level or blur level is calculated on a pixel by pixel basis or on a block by block basis in accordance with a result of the frequency analysis. After the calculated motion level or blur level is converted into a binary value, 2-dimensional continuous regions are detected and a large region is extracted from the detected regions. It is then determined whether the large region is a blocker part based on at least one of an area ratio, a shape, and a position of the large region.

Abstract: The present invention relates to a production method of an optically active morpholine compound represented by the formula 10, which includes the following steps: wherein each symbol is as defined in the specification. The present invention also relates to a production method of an compound represented by the formula 55, which includes the following steps: wherein each symbol is as defined in the specification. According to the production method of the present invention, an optically active 2-aryl-substituted morpholine compound and 3-oxo-3-(pyrimidin-4-yl)propionate, which are important as starting materials for synthesizing 2-(2-arylmorpholin-4-yl)-1-methyl-1H-[4,4?]bipyrimidinyl-6-one having a tau protein kinase 1 inhibitory activity and useful as a therapeutic drug for Alzheimer's disease and the like, can be produced in a high yield by an industrially advantageous method.

Abstract: An object of the present invention is to provide an electronic watermark embedding apparatus, an electronic watermark embedding method, a record medium having an electronic watermark capable of securely detecting the watermark in the case of performing the noise reduction process or data compression process to the information on the contents and a manufacturing method of record medium. The electronic watermark embedding apparatus is provided with an embedding device for embedding an electronic watermark comprised of a signal generated based on a predetermined rule into contents comprised of digital information; a variation device for varying intensity of the electronic watermark to be embedded into the contents; and a controlling device for controlling the variation device so as to change the intensity of the electronic watermark, and wherein the controlling device for controlling the variation means so as to increase the intensity of the electronic watermark at intervals are provided.

Abstract: Object: To offer novel quinazoline derivatives, which are useful as intermediates in the production of agents for the treatment and prevention of cancer, and an industrially useful method for manufacture of the same. Means: The quinazoline derivative represented by general formula (I) below: (in the formula, each of the symbols is the same as described in the specification) or a salt thereof, or a hydrate or solvate thereof, and a method for using the same to produce novel quinazoline derivatives.

Abstract: Plural shots in a picture are classified into plural groups based on a similarity between the shots, and further, the shots particularly similar to each other in the group are linked to each other, to be hierarchically arranged, as shown in the drawings. For example, in a group A in the drawings, a representative frame “KA1” in a shot “A1” is intra-encoded, and then, all of respective representative frames “SA21”, “SA22”, and “SA23” in shots “A21”, “A22”, and “A23” in one lower hierarchy are subjected to prediction encoding using the frame “KA1”. In the same manner, representative frames in the shots are subjected to the prediction encoding using a representative frame in one upper hierarchy in the same group in a daisy-chain manner. Frames other than the representative frames are subjected to the prediction encoding using a representative frame to which the frame belongs.

Abstract: An information recording apparatus include: a processing unit for processing recording information to be recorded and for generating processed information; a storage unit for temporarily storing the processed information; a recording unit for recording the processed information onto an information storage medium; a position storing unit for storing, at a time of interrupting recording of the processed information, an interruption storage position which is a storage position in the storage unit of the processed information corresponding to a timing at which interruption is instructed; an interrupting unit for interrupting recording of the processed information after storing the interruption storing position; and a restart unit for restarting the recording of the processed information based on the stored interruption storage position.

Abstract: An information detecting apparatus which can surely detect specific information such as a digital watermark in high-speed data stream and can be configured at low cost. The apparatus extracts data including specific information from a high-speed data stream, and detects the specific information in the extracted data at low speed.

Abstract: An information recording apparatus for recording digital information inputted from outside onto an information storage medium, includes: a multiplexing unit for multiplexing the digital information by a plurality of window functions to generate a plurality of multiplied digital information, each of the plurality of window functions having a fade-out time-axis characteristic and having overlaps with neighboring window functions on time axis; a recording unit for recording the plurality of multiplied digital information corresponding to the respective window functions; an ending unit for changing ending multiplexed digital information which are the multiplied digital information corresponding to the window function including a recording end timing of the digital information to zero information, and for ending recording the digital information after recording the zero information onto the information storage medium in place of the ending multiplexed digital information.

Abstract: An object of the present invention is to provide an electronic watermark embedding apparatus, an electronic watermark embedding method, a record medium having an electronic watermark capable of securely detecting the watermark in the case of performing the noise reduction process or data compression process to the information on the contents and a manufacturing method of record medium. The electronic watermark embedding apparatus is provided with an embedding device for embedding an electronic watermark comprised of a signal generated based on a predetermined rule into contents comprised of digital information; a variation device for varying intensity of the electronic watermark to be embedded into the contents; and a controlling device for controlling the variation device so as to change the intensity of the electronic watermark, and wherein the controlling device for controlling the variation means so as to increase the intensity of the electronic watermark at intervals are provided.

Abstract: An information detecting apparatus which can surely detect specific information such as a digital watermark in high-speed data stream and can be configured at low cost. The apparatus extracts data including specific information from a high-speed data stream, and detects the specific information in the extracted data at low speed.

Abstract: A band-division signal processing system includes a coding unit and a decoding unit. The coding unit includes: an extracting unit for extracting a part of an original signal to produce a partial band signal; a first quantizer for quantizing the partial band signal to produce a quantized partial band signal; a subtracter for subtracting the quantized partial band signal from the original signal to produce a differential signal; and a first output unit for outputting the partial band signal and the differential signal. The decoding unit includes: a second quantizer having an identical configuration to the first quantizer and for quantizing the partial band signal outputted from the first output unit to produce the quantized partial band signal; an adder for adding the quantized partial band signal produced by the second quantizer to the differential signal outputted from the first output unit to produce the original signal; and a second output unit for outputting the original signal produced by the adder.

Abstract: An over-sampling device is provided for double over-sampling the input signal and for outputting as a sampling signal. The sampling signal is filtered at one of conversion rates of 147/160, 160/147, and 1/1 by using a prototype filter, based on the first sampling frequency and the second sampling frequency, and a filtering signal is produced. The filtering signal is filtered by a low pass filter having a predetermined cutoff frequency band, and a low frequency signal is produced. A down-sampling device is provided for down-sampling the low frequency signal by one half.

Abstract: Described herein is an SiC-reinforced aluminum alloy composite material of the type having silicon carbide uniformly dispersed in an aluminum alloy matrix containing magnesium as a strengthening element, characterized in that the composite material contains Al4C3 in an amount smaller than 0.5 wt % and residual oxygen in an amount smaller than 0.4 wt %, and has a modulus of elasticity higher than 9000 kgf/mm.sup.2.

Abstract: A video signal recording and reproducing system enables recording and reproducing of a video signal with high quality. The system includes a recording system for recording the video signal on a record medium by a median filter and a reproducing system for reproducing the video signal from the record medium. The recording system separates a brightness signal and a color signal from an interlaced scanning signal. The recording system divides picture elements of each line into two phases by sorting the elements such that an element is put into one phase and the next element into the other. The recording system then carries out two-dimensional subsampling to the brightness signal and the color signal to reduce the amount of data. Then, the recording system compresses and time-division multiplexes the brightness signal and the color signal to provide a video signal to be recorded onto a record medium.

Abstract: A video signal recording and reproducing system enables recording and reproducing of a video signal with high quality. The system includes a recording system for recording the video signal on a record medium by means of a median filter and a reproducing system for reproducing the video signal from the record medium. The recording system separates a brightness signal and a color signal from an interlaced scanning signal. The recording system divides picture elements of each line into two phases by sorting the elements such that an element is put into one phase and the next element into the other. The recording system then carries out two-dimensional subsampling to the brightness signal and the color signal to reduce the amount of data. Then, the recording system compresses and time-division multiplexes the brightness signal and the color signal to provide a video signal to be recorded onto a record medium.

Abstract: An HDTV signal (dot density: 2N dots/line) is converted into a luminance signal and a line sequential color signal, and the resulting signals are both subjected to vertical interpolation and vertical filtering to derive a sequential scanning luminance signal and a sequential scanning color signal. The resulting sequential scanning luminance signal and sequential scanning color signal are subjected to frame thinning to reduce the frequency thereof to a half. Then, subsampling is performed to reduce the dot density to N dots/line. Next, dot rearranging for distributing adjacent dots to adjacent lines is performed to double the number of frames, whereby the dot density of each frame is reduced to N/2 dots/line. These consequently derived frames are encoded for recording. In this manner, the frequency bandwidth required to a recording medium for recording HDTV signals can be reduced.

Abstract: An apparatus for controlling acoustical transfer characteristics having an input section for inputting data on acoustical transfer decision factors determining the acoustical transfer characteristics of an audio reproduction output signal, an arithmetic section for calculating a value of control of the acoustic transfer characteristics of the audio reproduction output signal by fuzzy inference based on the decision factors, and an operational section for changing the acoustical transfer characteristics. The factors for compensating for auditory sensation characteristics vary depending upon the sound volume level. Acoustic transfer characteristics suitable for the auditory sensitivity characteristics of the listener with changes in the sound volume can be obtained by a simple operation.