Abstract: A coefficient presence/absence flag decoding unit, included in a quantized residual information decoding unit which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.

Abstract: In a case that a pixel shape in a luma domain is not similar to a pixel shape in a chroma domain in an input image, a prediction image that is generated in the reuse of a luma prediction mode is made more accurate. A moving image decoding apparatus 1 includes a gradient deriving unit 1453B that references a chroma gradient definition DEFANG1C, and derives a chroma prediction direction from a prediction mode based on a luma prediction direction.

Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.

Abstract: A robot system including robot control devices, a network, and a mode changing device which switches between an automatic operation mode and teaching mode. In the state where the mode changing device selects the automatic operation mode, drive power is supplied to all of the robots regardless of the state of the enable device. In the state where the mode changing device selects the teaching mode, when the enable device does not permit operation of at least two robots, the drive power of all of the robots is cut.

Abstract: A hierarchy video decoding device (1) includes a parameter set decoding unit (12) that decodes reference region information, and a predicted image generation portion (1442) that derives a scale or a corresponding reference position, and generates a predicted image, based on a target layer reference region position and a reference layer reference region position which are derived from the reference region information.

Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.

Abstract: According to an aspect of the present invention, in an output layer set, decoding processing of a non-output and non-reference layer is omitted, and thus a processing amount and a memory size required for decoding the non-output and non-reference layer can be reduced.

Abstract: In a conventional art, an output layer set having no output layer is sometimes defined. Consequently, even if the decoder decodes a bit stream to obtain each layer in the output layer set without the output layer, there is no picture to be outputted. There is a possibility that such coded data causes the decoder expecting an output to operate unexpectedly. Output layer sets having the same configuration may be defined. Consequently, the amount of code pertaining to the output layer sets defined in an overlapping manner is redundant. According to an aspect of the present invention, specification of a bit stream conformance pertaining to the output layer set prevents occurrence of an output layer set without an output layer and a redundant output layer set.

Abstract: A layer incapable of being decoded on a bit stream which is generated through a bit stream extraction process from a bit stream including a prescribed layer set and which only includes a layer set made up of a subset of the prescribed layer set, occurs. An aspect of the present disclosure specifies a bit stream constraint pertaining to a parameter set, and a bit stream extraction process.

Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.

Abstract: A coefficient presence/absence flag decoding unit, included in a quantized residual information decoding unit which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.

Abstract: A robot control device comprises a mass parameter setting unit which sets a mass parameter, and a stop command unit which sends a stop command of a robot. A first upper limit value regarding external force and a second upper limit value smaller than the first upper limit value have been set. The stop command unit stops the robot when estimated external force exceeds the first upper limit value. Furthermore, the stop command unit makes the robot to be in a stop state when an average value of the external force exceeds the second upper limit value.

Abstract: A robot controller for ensuring safety of an operator, which is capable of reducing operational cost by avoiding unnecessary emergency stop of a robot. A teaching pendant has an emergency stop button for interrupting drive power for the robot, and a main body of the controller has a signal part which receives an emergency stop signal from the teaching pendant when the emergency stop button is pushed, and a power interrupting part which interrupts the drive power for the robot when the signal part receives the emergency stop signal under a predetermined condition. Until a first predetermined period of time has passed after a connection/disconnection switch is operated, the power interrupting part does not interrupt the drive power when a connection-recognition signal representing that the teaching pendant is connected to the main body is not generated, even when the emergency stop signal is input from the teaching pendant.

Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.

Abstract: A hierarchical image decoding apparatus, a hierarchical image coding apparatus, and a hierarchical coded data transformation apparatus where the hierarchical image decoding apparatus includes a parameter set decoder that decodes scale adjustment information, and a predictive image generator that generates a predictive image on the basis of the scale adjustment information, and the hierarchical image coding apparatus includes a parameter set encoder that encodes scale adjustment information, and the hierarchical coded data transformation apparatus includes a parameter set adjustor that transforms input hierarchically coded data based on inputted information of interest region, and adjusts scale adjustment information such that inter-layer scales derived from the hierarchically coded data before and after transformation coincide with each other.

Abstract: A robot control apparatus includes a stop command unit which stops a robot. A first external force judgement value smaller than a stop judgement value and a second external force judgement value smaller than the first external force judgement value are previously determined. The stop command unit inhibits a restart of execution of an operation program when, in a state where the execution of the operation program is temporarily stopped, an external force is continuously equal to or less than the first external force judgement value during a period of a first time length, and additionally, the external force continuously exceeds the second external force judgement value during a period of a second time length.

Abstract: The amount of encoding of hierarchically encoded data is reduced with an improvement in the accuracy of a predicted image by including information for accurate derivation of a position of a reference layer pixel corresponding to a pixel in a higher layer, which is a target layer, in the hierarchically encoded data. A hierarchical moving image decoder (1) includes a parameter set decoding unit (12) decoding inter-layer phase correspondence information and a predicted image generator (1442) generating a predicted image on the basis of the inter-layer phase correspondence information.

Abstract: In a case of applying a shared parameter set between layers in a certain layer set, there occurs an undecodable layer on a bitstream that is generated by a bitstream extraction process from a bitstream including the layer set and that includes only a subset layer set of the layer set. According to an aspect of the present invention, a bitstream constraint and a dependency relationship between layers that use a shared parameter set are defined in a case of applying a shared parameter set between layers in a certain layer set.

Abstract: An image decoding device which can extract an independent layer without rewriting of syntax and cause a non-scalable decoder to reproduce the extracted is realized. An image decoding device (1) includes a NAL-unit header decoding unit (211) that decodes a layer ID of an SPS, a dependency layer information decoding unit (2101) that decodes dependency layer information, and a profile level information decoding unit (2102) that decodes profile level information from a VPS. The decoding unit (2102) decodes the profile level information also from the SPS in a case where, it is determined that a layer indicated by the layer ID is an independent layer, based on the dependency layer information.

Abstract: While maintaining a high degree of freedom in choosing partition sizes and transformation sizes adapted for local characteristics of videos, the amount of metadata is decreased. A video encoding apparatus (10) divides an input video into blocks of a prescribed size and encodes the video block by block. The video encoding apparatus is provided with: a prediction parameter determining portion (102) that decides the block partition structure; a predictive image producing portion (103) that generates predictive images, partition by partition, as prescribed by the partition structure; a transform coefficient producing portion (107) which applies one of the frequency transformations included in a prescribed transformation preset to prediction residuals, i.e. the differences between predictive images and the input video; a transform restriction deriving portion (104) which generates the list of transform candidate, i.e.