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公开(公告)号:US11721040B2
公开(公告)日:2023-08-08
申请号:US16577403
申请日:2019-09-20
Inventor: Tatsuya Koyama , Toshiyasu Sugio , Yoichi Sugino , Toru Matsunobu , Satoshi Yoshikawa
IPC: G06T7/80 , G06T7/70 , B64C39/02 , B64U101/30
CPC classification number: G06T7/80 , B64C39/024 , G06T7/70 , B64U2101/30 , G06T2207/10032
Abstract: A calibrator for a camera includes a controlling circuit, a photographing circuit, a calculating circuit, and an instructing circuit. The controlling circuit is configured to control a movable body to move into a shooting area of the camera. A marker is provided on the movable body for calibration of the camera. The photographing circuit is configured to control the camera to photograph the marker. The calculating circuit is configured to calculate at least one parameter of the camera based on the photographed marker. The instructing circuit is configured to transmit the at least one parameter to the camera to calibrate the camera.
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公开(公告)号:US11425382B2
公开(公告)日:2022-08-23
申请号:US17231167
申请日:2021-04-15
Inventor: Satoshi Yoshikawa , Takahiro Nishi , Kengo Terada
IPC: H04N11/02 , H04N19/124 , H04N19/176 , H04N19/126 , H04N19/154 , H04N19/159 , H04N19/46 , H04N19/136
Abstract: An encoding method which allows reduction in the amount of codes is provided. The encoding method includes: setting step S11 for setting a quantization matrix set; quantization step S12 for performing quantization on a target block using the selected quantization matrix; and encoding step S13 for encoding, in a mutually associated manner, the target block which has been subjected to the quantization and identification information for identifying the quantization matrix set which has been set. In setting step S11, a quantization matrix set selected from a plurality of quantization matrix sets is set as the quantization matrix set to be used to perform the quantization on the target block, the plurality of quantization matrix sets including a custom quantization matrix set which is arbitrarily specified and a plurality of defined quantization matrix sets which have been respectively defined in advance.
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公开(公告)号:US09807411B2
公开(公告)日:2017-10-31
申请号:US14656509
申请日:2015-03-12
Inventor: Kengo Terada , Hisao Sasai , Satoshi Yoshikawa
CPC classification number: H04N19/50 , H04N5/23229 , H04N19/573 , H04N19/58
Abstract: An image coding apparatus is an image coding apparatus which encodes a plurality of to-be-displayed images forming video by using inter prediction. The image coding apparatus includes an obtaining unit that obtains a reference-specific image which is an image different from the plurality of to-be-displayed images or different from a plurality of reconfigured images obtained by reconfiguration of the plurality of to-be-displayed images and which is an image used as an image that is specific to reference for the inter prediction, and an encoding unit that encodes one or more to-be-displayed images among the plurality of to-be-displayed images by referring to the reference-specific image as a reference image for the inter prediction.
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