Panasonic Intellectual Property Corporation of America

Zheng Wu

Toshiyasu Sugio

Pongsak Lasang

Chi Wang

Takahiro Nishi

Noritaka Iguchi

Chung Dean Han

Keng Liang Loi

Sheng Mei Shen

Tatsuya Koyama

An encoding method for encoding three-dimensional points each having a position represented by a distance and an angle, the encoding method comprising: identifying three-dimensional points that belong to a second processing unit and have been encoded, for inter prediction of a first three-dimensional point belonging to a first processing unit; and selecting a reference three-dimensional point from the three-dimensional points identified to calculate an inter predicted value of the first three-dimensional point. The three-dimensional points identified include a second three-dimensional point and a third three-dimensional point, the second three-dimensional point having a second angle corresponding to a first angle of the first three-dimensional point, the third three-dimensional point having a third angle greater than the second angle.

Encoding method, decoding method, encoding device, and decoding device

A three-dimensional data encoding method of encoding three-dimensional points obtained by a sensor includes: encoding local coordinate information indicating sets of local coordinates that are coordinates of the three-dimensional points and are dependent on a location of the sensor; and generating an encoded bitstream including the local coordinate information encoded and global coordinate information indicating global coordinates that are coordinates of a reference point or at least one of the three-dimensional points and are independent from the location of the sensor.

Three-dimensional data encoding method, three-dimensional data decoding method, three- dimensional data encoding device, and three- dimensional data decoding device

A three-dimensional data encoding method includes: calculating a predicted value of a position of a three-dimensional point according to one of inter prediction and intra prediction; calculating a residual between the predicted value and the position; arithmetic-encoding the residual using a first context when the predicted value is calculated according to the inter prediction; and arithmetic-encoding the residual using a second context different from the first context when the predicted value is calculated according to the intra prediction. The residual is expressed by third residual information indicating a bit count of the residual.

Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device

A three-dimensional point cloud generation method for generating a three-dimensional point cloud including one or more three-dimensional points includes: obtaining (i) a two-dimensional image obtained by imaging a three-dimensional object using a camera and (ii) a first three-dimensional point cloud obtained by sensing the three-dimensional object using a distance sensor; detecting, from the two-dimensional image, one or more attribute values of the two-dimensional image that are associated with a position in the two-dimensional image; and generating a second three-dimensional point cloud including one or more second three-dimensional points each having an attribute value, by performing, for each of the one or more attribute values detected, (i) identifying, from a plurality of three-dimensional points forming the first three-dimensional point cloud, one or more first three-dimensional points to which the position of the attribute value corresponds, and (ii) appending the attribute value to the one or more first three-dimensional points identified.

Three-dimensional point cloud generation method, position estimation method, three-dimensional point cloud generation device, and position estimation device

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Singapore, Singapore

Zheng Wu