Abstract: A transmission apparatus receives information used to identify video data in which an error occurs on a communication path, and changes a coding mode in which data coding is performed by referring to video data in other frame so that video data coded by referring to the video data corresponding to the identification information is coded in a coding mode in which data coding is performed without referring to the video data in the other frame. Further, the transmission apparatus codes video data in the changed coding mode.

Abstract: An information transmission apparatus that transmits data whose generation amount per unit time changes is provided. If a data amount that exceeds a predetermined threshold is generated, an excess data portion, which is a portion of a piece of data, the portion being of a data amount by which the piece of data exceeds the threshold, is distributed to at least a piece of preceding data whose data amount does not reach the threshold. The excess data portion is distributed at a ratio determined in accordance with a difference between the data amount of a piece of data to which the excess data portion is to be distributed and the threshold.

Abstract: It aims to provide the technique capable of reducing the process to be executed on the reception side and shortening the time from the occurrence of an error to the sending of a retransmission request. To achieve this, the image data is encoded in units of block by the encoding unit, the reference information representing whether or not the block is referred when another block is encoded is generated by the reference map generation unit, and then the encoded block and the reference information are transmitted by the transmission unit.

Abstract: In the case of a conventional image apparatus that generates refocus image on the occasion of image display, there is a waiting time because the image apparatus generates the refocus image in response to an operation of a user and requires the time to generate the refocus image. To address this situation, an image apparatus determines ranks of targets to be in focus based on history information indicating operation history, and generates sequentially combined image data from multi-viewpoint image data obtained by capturing images from multiple viewpoints, by focusing on the targets in accordance with the determined ranks.

Abstract: A communication control apparatus includes a packetizing unit configured to generate packets based on coded data; a calculating unit configured to calculate, based on at least one of information regarding the amount of code of the coded data, reception state information indicating a reception state of a reception device serving as a transmission destination to which the packets are to be transmitted, information regarding the effective speed of a communication line to be used for transmission of the packets, and information regarding an available capacity of a communication channel that can be ensured for communication of the packets, the number of packets to be continuously transmitted; and a transmitting unit configured to continuously transmit, via the communication line to the reception device, packets corresponding to the number of packets calculated by the calculating unit.

Abstract: A transmission apparatus of the present invention includes an encoder unit configured to encode data including plural layers for each of the layers, a packetizing unit configured to generate a packet based on the data encoded by the encoder unit, a determination unit configured to determine transmission intervals at which the generated packet is transmitted for each of the layers, and a transmission unit configured to transmit the generated packet at the determined transmission intervals, wherein the transmission intervals are changed for each specified packet, where the change varies with each of the plurality of layers.

Abstract: It aims to provide the technique capable of reducing the process to be executed on the reception side and shortening the time from the occurrence of an error to the sending of a retransmission request. To achieve this, the image data is encoded in units of block by the encoding unit, the reference information representing whether or not the block is referred when another block is encoded is generated by the reference map generation unit, and then the encoded block and the reference information are transmitted by the transmission unit.

Abstract: A transmission apparatus receives information used to identify video data in which an error occurs on a communication path, and changes a coding mode in which data coding is performed by referring to video data in other frame so that video data coded by referring to the video data corresponding to the identification information is coded in a coding mode in which data coding is performed without referring to the video data in the other frame. Further, the transmission apparatus codes video data in the changed coding mode.

Abstract: A communication control apparatus includes a packetizing unit configured to generate packets based on coded data; a calculating unit configured to calculate, based on at least one of information regarding the amount of code of the coded data, reception state information indicating a reception state of a reception device serving as a transmission destination to which the packets are to be transmitted, information regarding the effective speed of a communication line to be used for transmission of the packets, and information regarding an available capacity of a communication channel that can be ensured for communication of the packets, the number of packets to be continuously transmitted; and a transmitting unit configured to continuously transmit, via the communication line to the reception device, packets corresponding to the number of packets calculated by the calculating unit.

Abstract: A transmission apparatus of the present invention includes an encoder unit configured to encode data including plural layers for each of the layers, a packetizing unit configured to generate a packet based on the data encoded by the encoder unit, a determination unit configured to determine transmission intervals at which the generated packet is transmitted for each of the layers, and a transmission unit configured to transmit the generated packet at the determined transmission intervals, wherein the transmission intervals are changed for each specified packet, where the change varies with each of the plurality of layers.

Abstract: An information transmission apparatus that transmits data whose generation amount per unit time changes is provided. If a data amount that exceeds a predetermined threshold is generated, an excess data portion, which is a portion of a piece of data, the portion being of a data amount by which the piece of data exceeds the threshold, is distributed to at least a piece of preceding data whose data amount does not reach the threshold. The excess data portion is distributed at a ratio determined in accordance with a difference between the data amount of a piece of data to which the excess data portion is to be distributed and the threshold.

Abstract: An image processing apparatus and method therefor for presenting an image corresponding to the capability of equipment to which an image is supplied, and the needs of users. The apparatus present the image by inputting external information represents desired scalability from external equipment, encoding the image data with the desired scalability according to the external information, and outputting the encoded data to external equipment.

Abstract: An encoding apparatus/method for encoding input image data on a block unit basis of a predetermined size by using a motion compensation is provided. Among blocks constructing one picture, motion vectors with respect to blocks located at a first predetermined position are searched. A first motion vector showing a motion of image data of one picture is formed from the searched motion vectors of the blocks. A motion compensation is performed to the input image data in accordance with the formed first motion vector, thereby encoding the data.

Abstract: A single base layer is formed by reducing information of input image data with at least a plurality of scalable factors, and a plurality of enhancement layers having information associated with a plurality of scalable factors are formed by using the base layer, thereby minimizing the amount of data to be transmitted and allowing the receiving side to arbitrarily select one of images with large information amounts based on various scalable factors. A system suited for image selection on the receiving side is also constructed.

Abstract: An image processing apparatus and method therefor for presenting an image corresponding to the capability of equipment to which an image is supplied, and the needs of users. The apparatus present the image by inputting external information represents desired scalability from external equipment, encoding the image data with the desired scalability according to the external information, and outputting the encoded data to external equipment.

Abstract: An image processing apparatus and method therefor for presenting an image corresponding to the capability of equipment to which an image is supplied, and the needs of users. The apparatus present the image by inputting external information represents desired scalability from external equipment, encoding the image data with the desired scalability according to the external information, and outputting the encoded data to external equipment.

Abstract: Apparatus and method for cross-fading moving image signals include structure and steps for temporarily storing moving image signals in a memory for a predetermined period of time. Moving image signals read out from the memory and newly-input moving image signals are continuously combined for an operation time equal to or greater than the predetermined period of time. Thus, it is possible to obtain combined signals such that the moving image signals overlap each other in a relatively simple arrangement without using a special magnetic head.

Abstract: A single base layer is formed by reducing information of input image data with at least a plurality of scalable factors, and a plurality of enhancement layers having information associated with a plurality of scalable factors are formed by using the base layer, thereby minimizing the amount of data to be transmitted and allowing the receiving side to arbitrarily select one of images with large information amounts based on various scalable factors. A system suited for image selection on the receiving side is also constructed.

Abstract: An image reproducing apparatus reproduces an encoded image signal, detects a motion vector of a block including undecodable image signal by using the reproduced image signal, and structuring an image signal for the block including the undecodable signal by using the motion vector to reproduce a visually high quality image even when the block including the undecodable image signal moves.

Abstract: A recording/reproducing apparatus for recording encoded data on a recording medium by time sequentially and independently recording normal reproduction data and specific reproduction data contained in the encoded data, the normal reproduction data and specific reproduction data including decode control information. The recording/reproducing apparatus includes a detection circuit for detecting the decode control information from reproduced data in a specific reproduction mode and in a normal reproduction mode, and a memory circuit for storing the control information detected by the detection circuit.