Canon Kabushiki Kaisha

Reiko Fujino

Satoshi Naito

Tadayoshi Nakayama

Makoto Kimura

Saku Hiwatashi

A moving image coding apparatus includes a feature amount derivation unit configured to derive a feature amount of a block having a reference size smaller than the block unit, the block included in a subject frame being a processing subject of the frames included in the moving image, a decision unit configured to, in a case where the feature amount, derived by the feature amount derivation unit, of the block having the reference size is matched with a first condition, decide the reference size as a block size for inter-prediction and decide a size equal to or smaller than the block size for inter-prediction as a block size for intra-prediction, and a selection unit configured to perform a predetermined evaluation and select one of inter-prediction and intra-prediction as a prediction method for the block having the block size decided by the decision unit.

Moving image coding apparatus, moving image coding method and recording medium

An image processing apparatus includes an image capturing unit configured to capture a real space, a detection unit configured to detect, from image data captured by the image capturing unit, feature points to be used to obtain a position and an orientation of the image capturing unit, a generation unit configured to generate compressed image data by compressing a data amount of the image data, a transmission unit configured to transmit, to an external server, the compressed image data and position information of the feature points detected by the detection unit, and a display unit configured to display composite image data generated in the external server based on the position information and the compressed image data by receiving the composite image data from the external server.

Image processing apparatus, image processing system, control method for image processing apparatus, and non-transitory computer-readable storage medium for mixed reality

A multi-viewpoint image which has been captured with respect to an object from a plurality of viewpoints is coded by setting a base viewpoint among the plurality of viewpoints. An image captured from a viewpoint that is not the base viewpoint is then coded using a reference image selected based on imaging parameters and a parallax.

Imaging apparatus, imaging method and storage medium, image coding apparatus, image coding method and storage medium

This invention decreases the count of access to a memory which stores image data regarding orthogonal transform, and quickly generates orthogonal transform coefficients. An apparatus includes a storage unit which stores image data, a memory controller which reads each block from the storage unit, a first transforming unit which receives and orthogonally transforms the input block, and calculates only one DC component, a selector which selects and outputs one of the block read out via the memory controller, and data of DC components from the first transforming unit that are equal in number to pixels included in the block, a second transforming unit which orthogonally transforms data that have been output from the selector and are equal in number to pixels included in the block, and outputs either one DC component or a plurality of AC components, and a controller which controls the memory controller, selector, and second transforming unit.

Data transform apparatus

This invention enables parallelly sorting data in substantially M blocks though statistical information is updated. In the first scan conversion, () input transform coefficients of a two-dimensional array are read out and output in accordance with scan order information ScanOrder[ ], thereby outputting sorted one-dimensional array data. At this time, a significant coefficient detection unit determines whether the sorted data is a significant coefficient. Upon receiving a notification that the sorted data is a significant coefficient, a statistical information update unit updates statistical information ScanTotals[x] at a corresponding position. When the relationship between statistical information ScanTotals[x] and immediately preceding statistical information ScanTotals[x&#x2212;1] is an ascending order, ScanOrder[x&#x2212;1] and ScanOrder[x], and ScanTotals[x&#x2212;1] and ScanTotals[x] are swapped respectively. A second scan conversion unit starts scan conversion of transform coefficients with a delay of at least two transform coefficients from a first scan conversion unit.

Scan conversion apparatus, image encoding apparatus, and control method therefor

An object of this invention is to provide an image processing apparatus capable of preventing any color misregistration in printing even when the image processing apparatus is divided into a plurality of semiconductor integrated circuits. An image processing apparatus is used for an image forming apparatus for sequentially printing image processing results of color components by a plurality of photosensitive drums separated by predetermined distances in correspondence with the colors. In the image processing apparatus, a plurality of image processing sections for the respective color components are divided into a plurality of semiconductor integrated circuits. At least two of the plurality of image processing sections have storage sections which adjust the printing timings of the color components corresponding to the distances between the photosensitive drums. The image processing apparatus includes a synchronization circuit which synchronizes, with an image processing clock for image processing, a print request signal from a printer controller. The print request signal synchronized by the synchronization circuit is commonly used to adjust the read timings of the storage sections of the plurality of image processing sections.

Growing community of inventors

Kawasaki, Japan

Reiko Fujino