Nec Corporation

Atsushi Hatabu

Kazunori Ozawa

Hiroaki Dei

Yuzo Senda

Hiroshi Imai

Katsunori Tanaka

Jun Takada

Gaku Nakano

Masahiko Ohta

Katsutoshi Seki

Kosuke Nishihara

Tomoyoshi Kobori

Zhen Wang

Soji Mori

For detecting a crack formed on a structure surface without erroneously, an information processing device that detects a crack on a structure, includes a change detection unit that detects a change in positions of at least two measurement points on the structure; and a crack detection unit that detects a crack based on the change in the positions of the measurement points detected by the change detection unit.

Information processing device, information processing method and medium

Provided is a device for evaluating the importance of an in-image region and that can appropriately evaluate the importance in terms of meaning of an in-image region. A processing unit performs a process including color reduction with respect to an evaluation subject region of an image. An importance determination unit determines the importance of the evaluation subject region on the basis of the degree of magnitude of the error between the pre-processing signal value of the evaluation subject region and the post-processing signal value of the evaluation subject region.

Storage medium, method, and device for evaluating importance of in-image region

A program debugging method of debugging a memory access to memory areas during an execution of a program includes changing only addresses allocated to segments among addresses of the memory areas to change an arrangement of the segments, executing the program in which the arrangement of the segments is changed, tracing memory accesses involved in the execution of the program to obtain reference addresses referred to by the memory access, and obtaining at least one of execution results, and analyzing the reference addresses of a memory access to be analyzed according to an execution command, which includes an analysis target, and determining whether the memory access to be analyzed is valid, when it is determined that at least one of the plurality of execution results, the numbers of accesses, and the execution orders are the same in all executions in the analyzing of the execution result.

Program debugging method and program transformation method, program debugging device and program transformation device using the same, and storage medium

To provide a dynamic image receiving apparatus which receives dynamic image streams coded with inter-frame prediction such as MPEG from a plurality of channels, and collects the dynamic image streams containing intra-frame coded pictures from each channel in a short time. The dynamic image receiving apparatus includes: a time information accumulative processing device which accumulates code receiving time of the intra-frame coded picture of the dynamic image stream, and periodicity time information containing one of or both of presentation time information and decoding time information contained in the dynamic image stream for each dynamic image stream of the plurality of channels; code receiving time predicting devices which predict the code receiving time of the intra-frame coded pictures based on the periodicity time information; and a channel selection control device which controls channel selection of the dynamic image stream to be received based on the predicted code receiving time information.

Dynamic image receiving apparatus, dynamic image receiving method and program

The moving picture decoding device receives a moving picture bit stream compressed according to a coding method using interframe prediction and 2-dimensional discrete cosine transform. The device generates a decoded picture in a block unit from an interframe prediction picture generated by decoding the bit stream and a prediction residual generated by performing the 2-dimensional discrete cosine transform and integerization processing on a discrete cosine transform coefficient. The device judges, block-by-block, whether it is highly probable that the prediction residual of '0' is obtained by the processing of the 2-dimensional discrete cosine transform and integerization executed by the encoding device when compressing the bit stream. If YES, the interframe prediction picture is selected and outputted. Otherwise, the prediction residual generated by the decoding device is added to the interframe prediction picture so as to obtain a picture, which is selected and outputted.

Moving picture decoding device, moving picture decoding program, and moving picture decoding method

A code conversion/transmission apparatus for being supplied with compressed encoded data and converting and outputting the data to a transmission path has code converter/transmitters for outputting the encoded data input thereto and encoded data produced by re-encoding the encoded data input thereto, or outputting a plurality of encoded data comprising encoded data produced by separately re-encoding the encoded data input thereto, respectively, and transmitting the plurality of encoded data to at least one transmission path. At least a portion of the encoded data input thereto and at least a portion of the re-encoded encoded data are transmitted to the transmission path.

Moving picture data code conversion/transmission method and device, code conversion/reception method and device

There is provided a template matching method having a small amount of calculation and high detection accuracy. The amount of calculation is reduced while minimizing the degradation of the detection accuracy by calculating the similarity between a template image region and a reference image region at rough position intervals and estimating by interpolation of the similarity at a position where it is not calculated from the similarity calculated at a peripheral position. At the time, even if the gradient of a similarity greatly changes at the minimal point, estimation can be realized with high accuracy by executing estimation making use of the directional gradients of the similarity obtained in plural different directions independently. Additionally, occurrence of wrong detection is avoided by the restriction to disable the difference between the estimated similarity and adjacent similarity to exceed a threshold, which is defined based on the similarity between the template image region and the image region obtained by moving the template image region in the same direction as or in the opposite direction to the direction of estimation.

Template matching method, template matching apparatus, and recording medium that records program for it

A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatusfor inputting audio coded data includes first to N-th code conversion and transmission unitsandtofor converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines. The second to N-th audio code conversion and transmission unitstocodes a frame at a compression rate equal to or higher than the rate of input coded data. The code conversion and reception apparatusselects a transmission line using a selection unit, and selecting data from correctly received coded data in a frame or packet unit, thereby reconfiguring the coded data using a coded data reconfiguration unit

Method, apparatus, system, and program for code conversion transmission and code conversion reception of audio data

A moving picture editing method is disclosed, in which if one or two reference frames utilized for motion compensation of P or B frame, constituting a part of moving picture before editing and not deleted in edition so as to constitute moving picture after editing, is subject to error generation in processing although not subject to lack in edition, motion vectors in a range centered on each motion vector V before editing of the P or B frame, are searched for the motion vector V' after editing corresponding to the minimum value of the difference between the motion compensated picture MC (X, V) before edition and motion compensated picture MC (X&#x2032;, V&#x2032;) after editing.

Moving picture editing method, moving picture editing system and storing medium with moving picture editing programs stored therein

In a process of resolving the two-dimensional orthogonal transformation into the one-dimension orthogonal transformations in a horizontal direction and a vertical direction, with respect to each signal vector within the block memory to be orthogonal-transformed in a vertical direction orthogonal transforming unit after having been orthogonal-transformed in a horizontal direction orthogonal transforming unit, a power calculating unit calculates the power of each signal vector, a threshold obtaining unit requires a threshold enabling the quantized coefficient signal to take a value other than zero, and a value comparing unit compares the both powers. When the power calculated by the power calculating unit is below the threshold, the vertical-directional orthogonal transformation and quantization processing as for the corresponding signal vector is omitted and a zero coefficient vector generating unit generates the quantized coefficient signal vector simply consisting of zero and supplies it as the calculation result.

Growing community of inventors

Tokyo, Japan

Atsushi Hatabu