Abstract: A method for diagnosis of diseases adopted on an electronic stethoscope which includes at least two sound receiving portions, a noise control portion, a processing portion, a data portion and an output portion. The method includes: first, the sound receiving portions receive sound signals issued from a patient's lungs included external noises; next, the sound signals are sent to the noise control portion which eliminates the external noise, and the processing portion to be overlapped and intensified; then characteristic values are retrieved from the sound signals to be compared with disease sound signal data in the data portion; finally the output portion outputs a diseases judgment result. Thus the electronic stethoscope can perform automatic interpretation of diseases to reduce human erroneous diagnostic judgment. Users also can get preliminary understanding of their body conditions when doctors are absent.

Abstract: In some aspects, message data is generated from a first representation of a message and a reference image. The message data is generated to hide the message such that generating a second representation of the message from the message data requires processing of a second image that is perceptually similar to the first image. In some examples, a degree to which the second representation of the message is perceptually similar to the first representation of the message is related to a degree to which the second image is perceptually similar to the first image.

Abstract: The present invention disclose an iris recognition method, which utilizes a matching pursuit algorithm to simplify the extraction and reconstruction of iris features and reduce the memory space required by each iris feature vector without the penalty of recognition accuracy. The iris recognition method of the present invention comprises an iris-localization component and a pattern matching component. The iris-localization component locates the iris region via the color difference between different portions of the eyeball. The primary iris features are extracted from iris information and transformed into a sequence of iris feature vectors by a matching pursuit algorithm. Thus, the iris image can be represented by a sequence of atoms, and each atom contains base, amplitude and location. Then, the comparison between the feature vectors of two irises is performed to determine whether the two irises match.

Abstract: In some aspects, message data is generated from a first representation of a message and a reference image. The message data is generated to hide the message such that generating a second representation of the message from the message data requires processing of a second image that is perceptually similar to the first image. In some examples, a degree to which the second representation of the message is perceptually similar to the first representation of the message is related to a degree to which the second image is perceptually similar to the first image.

Abstract: According to an asymmetric watermarking technology, which is particularly resistant to projection attack, an original image is analyzed to obtain its watermarking space. The watermarking space is then divided to obtain two orthogonal subspaces g and h. An embedding key G, which is a matrix and which columns form bases of subspace g, is selected and a matrix H, HTG=0 is calculated. Columns of matrix H form bases of subspace h. A detecting key D, which equals the sum D= GT=BHT, wherein B is a matrix, is calculated, and a watermark w is obtained and embedded into the original image ?0 to obtain a watermarked image ?w=?0+Gw, wherein D?0=m0 is not a 0 vector.

Abstract: An encoding system for a data set, particularly for a video data set is disclosed in the present invention. The encoding system includes a coding strategies represented as a tree-based structure, a cost projection system for each tree node, and a parameter searching algorithm for coding strategies to encode a data set. When the encoder parameters are obtained, the coding strategies and rate-allocation have better performance comparing to the related art.

Abstract: An encoding system for a data set, particularly for a video data set is disclosed in the present invention. The encoding system includes a coding strategies represented as a tree-based structure, a cost projection system for each tree node, and a parameter searching algorithm for coding strategies to encode a data set. When the encoder parameters are obtained, the coding strategies and rate-allocation have better performance comparing to the related art.

Abstract: The present invention disclose an iris recognition method, which utilizes a matching pursuit algorithm to simplify the extraction and reconstruction of iris features and reduce the memory space required by each iris feature vector without the penalty of recognition accuracy. The iris recognition method of the present invention comprises an iris-localization component and a pattern matching component. The iris-localization component locates the iris region via the color difference between different portions of the eyeball. The primary iris features are extracted from iris information and transformed into a sequence of iris feature vectors by a matching pursuit algorithm. Thus, the iris image can be represented by a sequence of atoms, and each atom contains base, amplitude and location. Then, the comparison between the feature vectors of two irises is performed to determine whether the two irises match.

Abstract: A novel method for coding and decoding video data and codec thereof are disclosed. The invented method provides an FGS (fine grained scalability) algorithm using bit plane coding technique. While conducting the bit plane encoding, the spatial and temporal dependence between bit planes is used to exploit the redundancy in the bit planes. In the embodiment of this invention, the bit plains are represented by quadtrees and bit plane prediction is made to remove the spatial and temporal redundancy in a video. The scalability of the video data is fine grained since atoms of the motion residuals do not have to be grouped as coding units.

Abstract: The present invention discloses an asymmetric watermarking technology, which is particularly resistant to projection attack. The asymmetric watermark embedding technology of this invention comprises the following steps: Analyze an original image ?o to obtain its watermarking space W. Divide said watermarking space W to obtain two orthogonal subspaces g and h. Select an embedding key G, which is a matrix and which columns form bases of subspace g. Calculate a matrix H, HTG=0. Columns of matrix H form bases of subspace h. Calculate detecting key D: D=GT+BHT; wherein B is a matrix. Obtain a watermark w and embed said watermark w into said original image ?o to obtain a watermarked image ?w, as follows: ?w=?o+Gw wherein D ?o=mo is not a 0 vector.

Abstract: The present invention relates to a heat sink. The heat sink includes a casting, a block, heat pipes, and fins. The block is placed in a cavity of the casting. The heat pipes are composed of a straight heat pipe and two second degree curve heat pipes. The heat pipes are coupled to the casting. The fins are also coupled to the casting. The block absorbs heat from a heat source and transfer to the fins via heat pipes for heat dissipation.

Abstract: A heat dissipation device with heat pipes is described. The heat dissipation device includes at least one U-shaped heat pipe, a plurality of heat fins, and a heat sink base. A middle portion of the U-shaped heat pipe is coupled to the heat sink base to receive thermal energy and transmit the same to two arm portions of the U-shaped heat pipe so as to improve the heat dissipation efficiency. A fixing plate is further utilized to fix the U-shaped heat pipe onto the heat sink base. The fixing plate further absorbs the thermal energy and the thermal energy is transmitted from the middle portion of the U-shaped heat pipe to the two arm portions of the U-shaped heat pipe and then to the heat fins. Therefore, the heat dissipation device can increase the heat dissipation efficiency while reducing the space it occupies in an electrical device.

Abstract: A heat dissipation module including heat pipes. The heat dissipation module includes a seat with grooves, heat pipes and two fin assemblies. The heat pipes are secured in the grooves at a first end and extend at the second end thereof. A first fin assembly with parallel first fins is soldered to the seat, covering the grooves and heat pipes. A second fin assembly with parallel second fins is secured to the cantilevered end of the heat pipes.

Abstract: A novel method for coding and decoding video data and codec thereof are disclosed. The invented method provides an FGS (fine grained scalability) algorithm using bit plane coding technique. While conducting the bit plane encoding, the spatial and temporal dependence between bit planes is used to exploit the redundancy in the bit planes. In the embodiment of this invention, the bit plains are represented by quadtrees and bit plane prediction is made to remove the spatial and temporal redundancy in a video. The scalability of the video data is fine grained since atoms of the motion residuals do not have to be grouped as coding units.