Sun Patent Trust

Panasonic Intellectual Property Corporation of America

Panasonic Intellectual Property Management Co., Ltd.

Tagivan Ii LLC

Velos Media, LLC

Panasonic Corporation

Other

Velos Media International Limited

Toru Matsunobu

Toshiyasu Sugio

Youji Shibahara

Hisao Sasai

Kyoko Tanikawa

Takahiro Nishi

Kengo Terada

Chong Soon Lim

Hai Wei Sun

Viktor Wahadaniah

Sue Mon Thet Naing

Satoshi Yoshikawa

Tatsuya Koyama

Tadamasa Toma

Daisaku Komiya

Masaki Fukuda

Kyaw Kyaw Win

Yoichi Sugino

Pongsak Lasang

Kensho Teranishi

Yuki Maruyama

Kenji Takita

Satoshi Sakaguchi

Chi Wang

Jin Li

Yi Xuan Zhang

Ukyou Katsura

Haiwei Sun

Kyoto Tanikawa

Seiji Higuchi

Natsuki Nagamori

Junichi Fujihira

Zhen Peng Bian

Mikihiro Ouchi

Sheng Mei Shen

Takako Hori

Tokuzo Kiyohara

Tadanori Tezuka

Tomoaki Itoh

Masao Hamada

Kuniaki Isogai

Keng Liang Loi

Pradit Mittrapiyanuruk

Jian Gao

Ryuji Muta

Chisato Yamashita

Vikto Wahadaniah

Shunsuke Yasugi

Shuuhei Sasakura

Sue Mon Naing

Sugio Toshiyasu,

An image coding method includes: determining a maximum number of merging candidates; deriving first merging candidates based on blocks spatially or temporally neighboring a current block; determining whether or not a total number of the first merging candidates is smaller than the maximum number; deriving, by making a combination out of the derived first merging candidates, a second merging candidate for bi-directional prediction when it is determined that the total number of the first merging candidates is smaller than the maximum number; selecting a merging candidate to be used for the coding of the current block from the first merging candidates and the second merging candidate; and coding, using the determined maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream.

Image decoding method and image decoding apparatus using candidate motion vectors

A three-dimensional model generation method includes: detecting a first line from each of a plurality of images of a target area shot to detect a plurality of first lines, the plurality of images being shot from a plurality of viewpoints; excluding, from the plurality of first lines detected, a second line that reaches an edge of an image among the plurality of images; and generating a line segment model which is a three-dimensional model of the target area represented by lines, using a plurality of line segments which are the plurality of first lines from which the second line is excluded.

Three-dimensional model generation method and three-dimensional model generation device

A three-dimensional model generation method executed by an information processing device includes: obtaining images generated by shooting a subject from respective viewpoints; searching for a similar point that is similar to a first point in a first image among the images, from second points in a search area in a second image different from the first image, the search area being provided based on the first point; calculating an accuracy of a search result of the searching, using degrees of similarity between the first point and the respective second points; and generating a three-dimensional model using the search result and the accuracy.

Three-dimensional model generation method and three-dimensional model generation device for calculating an accuracy of a similar point search

A method for transmitting a bitstream via a network is provided. The bitstream being generated by: deriving a first candidate having a first motion vector that has been used to code a first block; deriving a second candidate having a second motion vector and a first reference picture index value that identifies a first reference picture corresponding to the second motion vector, with the second motion vector being a first zero vector; deriving a third candidate having a third motion vector and a second reference picture index value that identifies a second reference picture corresponding to the third motion vector, with the third motion vector being a second zero vector. One candidate from a plurality of candidates, including the first, second, and third candidate is selected, and an index identifying the selected one candidate is coded.

Image coding method, image coding apparatus, image decoding method, image decoding apparatus, and image coding and decoding apparatus

A three-dimensional information processing method includes: obtaining, via a communication channel, map data that includes first three-dimensional position information; generating second three-dimensional position information from information detected by a sensor; judging whether one of the first three-dimensional position information and the second three-dimensional position information is abnormal by performing, on one of the first three-dimensional position information and the second three-dimensional position information, a process of judging whether an abnormality is present; determining a coping operation to cope with the abnormality when one of the first three-dimensional position information and the second three-dimensional position information is judged to be abnormal; and executing a control that is required to perform the coping operation.

Three-dimensional information processing method and three-dimensional information processing device

A displacement detection method, performed by a computer, includes: obtaining (i) a first three-dimensional (3D) model representing a region at a first timing by 3D points and including first objects and (ii) a second three-dimensional model representing the region at a second timing by 3D points and including second objects, the second timing being different from the first timing; detecting, by use of attribute information of the first objects and the second objects, (i) first 3D points included in the first 3D model and (ii) second 3D points included in the second 3D model and associated with the respective first 3D points; performing alignment of the first 3D model and the second 3D model by use of the first 3D points and the second 3D points; and detecting displacement between the first 3D model and the second 3D model after the alignment.

Displacement detection method, image-capturing instruction method, displacement detection device, and image-capturing instruction device

A moving picture coding apparatus for coding a current block from among blocks in a picture is provided. A motion vector predictor candidate list, having a fixed size, is generated, with the motion vector predictor candidate list including first and second candidates. The motion vector predictor candidate list is generated by: deriving the first candidate from a first motion vector used to code a first block, with the first block being adjacent to the current block; and deriving the second candidate that has a second motion vector that is a non-zero value vector based on an X-Y axis of a fixed offset value, with the second motion vector not being derived by coding a block adjacent to the current block and the fixed offset value being a non-zero value that is added in a picture header and commonly used for the blocks in the picture.

Derivation method and apparatuses with candidate motion vectors

An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; writing, into the sequence parameter set, reference list description defining information for defining a plurality of reference list descriptions corresponding to the buffer descriptions; and writing, into a first header of each processing unit which is included in a coded bitstream, buffer description selecting information for specifying a selected buffer description.

Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus

A moving picture coding includes: coding a first flag indicating whether or not temporal motion vector prediction is used; when the first flag indicates that the temporal motion vector prediction is used: coding a first parameter for calculating the temporal predictive motion vector; wherein when the first flag indicates that the temporal motion vector prediction is not used, the first parameter is not coded.

Moving picture coding method, moving picture decoding method, moving picture coding apparatus, moving picture decoding apparatus, and moving picture coding and decoding apparatus

A three-dimensional reconstruction method of generating a three-dimensional model including a three-dimensional point cloud using images obtained by image capturing devices that capture a common three-dimensional space includes acquiring the images captured at corresponding timings and generating three-dimensional points based on the acquired images. The generating includes generating one or more first three-dimensional points based on a result of a first matching performed on points in two or more first images obtained by two or more first image capturing devices, of the image capturing devices, having fields of view with higher similarity than a predetermined threshold, and generating one or more second three-dimensional points based on a result of a second matching performed on points in two or more second images obtained by two or more second image capturing devices, included in the image capturing devices, having fields of view with lower similarity than the predetermined threshold.

Three-dimensional reconstruction method, three-dimensional reconstruction device, and computer

A moving picture decoding apparatus for decoding a current block of a picture is provided. A motion vector candidate list includes motion vector candidates. Each motion vector candidate includes a value. A second candidate is arranged before a first candidate in the motion vector candidate list. The first candidate is sorted before the second candidate in the motion vector candidate list based on the value of the first candidate and the value of the second candidate. An index identifying a motion vector candidate from the motion vector candidate list is decoded, and the current block is generated using the identified motion vector candidate. The value of the first candidate is higher than the value of the second candidate, and the value is based on a number of times the candidate is selected as a motion vector predictor for neighboring blocks.

Coding method and apparatus with candidate motion vectors

A moving picture coding apparatus includes an intra-inter prediction unit which calculates a second motion vector by performing a scaling process on a first motion vector of a temporally neighboring corresponding block, when selectively adding, to a list, a motion vector of each of one or more corresponding blocks each of which is either a block included in a current picture to be coded and spatially neighboring a current block to be coded or a block included in a picture other than the current picture and temporally neighboring the current block, determines whether the second motion vector has a magnitude that is within a predetermined magnitude or not within the predetermined magnitude, and adds the second motion vector to the list when the intra-inter prediction unit determines that the second motion vector has a magnitude that is within the predetermined magnitude range.

Moving picture coding method, moving picture coding apparatus, moving picture decoding method, moving picture decoding apparatus, and moving picture coding and decoding apparatus

A moving picture coding method includes: making a determination as to whether or not to code all blocks in a current picture in the skip mode; setting, based on a result of the determination, a first flag indicating whether or not a temporally neighboring block is to be referenced, a value of a parameter for determining a total number of merging candidates, and a second flag for each block included in the current picture, the second flag indicating whether or not the block is to be coded in the skip mode; calculating, as a merging candidate, a neighboring block usable for merging; and coding an index which indicates a merging candidate to be used for coding of the current block and attaching the coded index to a bitstream.

Video coding method, video decoding method, video coding apparatus and video decoding apparatus

A method of performing motion vector prediction for a current block in a picture is provided which includes: deriving a candidate for a motion vector predictor to code a current motion vector of the current block, from a first motion vector of a first block that is spatially adjacent or temporally adjacent to the current block; adding the derived candidate to a list of candidates; and deriving at least one motion vector predictor based on a selected candidate from the list of candidates, wherein the deriving of the candidate includes determining whether to derive the candidate from the first motion vector, based on a type of a current reference picture and a type of a first reference picture, the current reference picture being referred to from the current block using the current motion vector, the first reference picture being referred to from the first block using the first motion vector.

Method of performing motion vector prediction, and apparatus thereof

An image coding method includes: performing context arithmetic coding to consecutively code (i) first information indicating whether or not to perform sample adaptive offset (SAO) processing for a first region of an image and (ii) second information indicating whether or not to use, in the SAO processing for the first region, information on SAO processing for a region other than the first region, the context arithmetic coding being arithmetic coding using a variable probability, the SAO processing being offset processing on a pixel value; and performing bypass arithmetic coding to code other information which is information on the SAO processing for the first region and different from the first information or the second information, after the first information and the second information are coded, the bypass arithmetic coding being arithmetic coding using a fixed probability.

Arithmetic coding for information related to sample adaptive offset processing

Growing community of inventors

Osaka, Japan

Toru Matsunobu