Canon Kabushiki Kaisha

Saku Hiwatashi

Koji Okawa

Makoto Kimura

Satoshi Naito

Reiko Fujino

An apparatus configured to divide a captured image into a plurality of regions and carry out imaging under a different exposure condition for each of the regions, includes an acquisition unit configured to acquire an exposure value for each of the regions in the captured image, a detection unit configured to detect a motion region based on the captured image, and a determination unit configured to determine an exposure time and a gain based on the exposure value for each of the regions and a result of detection of the motion region, wherein the determination unit sets a limitation on an adjustment range of at least any of the exposure time and the gain based on the result.

Apparatus, method for controlling apparatus, and storage medium

In order to appropriately control the image quality of an intended specific region in an image without delaying an encoding process, an image processing apparatus includes a determination unit configured to determine a specific region in a first image targeted for the encoding process on the basis of (a) a time difference between a first time associated with the first image and a second time associated with a second image in which an object has been detected by a detection unit before the encoding process is executed on the first image, and (b) information on a region corresponding to the object detected by the detection unit in the second image, and executes, on the first image, the encoding process of varying image quality between a region corresponding to the specific region determined by the determination unit, and any other region.

Image processing apparatus for controlling image quality of a specific region in an image while minimizing delay of the encoding process

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

An image processing apparatus according to the present invention is configured to encode frames forming a moving image using temporal hierarchies, and includes an acquisition unit configured to acquire information related to a temporal hierarchy corresponding to an encoding target frame, a determination unit configured to determine, based on the information related to the temporal hierarchy acquired by the acquisition unit, whether to use an encoding parameter based on a bit rate of at least one past frame encoded before the encoding target frame is encoded, and an encoding unit configured to encode the encoding target frame using the encoding parameter based on the bit rate of the at least one past frame.

Image processing apparatus, image processing method, and storage medium

An amount of code is reduced for blocks in which visible degradation is not easily susceptible, while a large amount of code is assigned to blocks whose degradation in image quality is easily perceptible thereby suppressing the number of blocks for which a process is performed to achieve high quality image and thus suppressing an increase in the total amount of code. An input image is encoded in units of blocks. A block evaluation value for the block is calculated. The block is divided into N sub-blocks where N is equal to or greater than 2, and a sub-block evaluation value is calculated for each sub-block. A quantization parameter for the block is controlled based on the block evaluation value and the sub-block evaluation values.

Image encoding apparatus for determining quantization parameter, image encoding method, and program

An image encoding apparatus includes an encoding unit which encodes an input image of a block, a calculating unit which calculates a plurality of evaluation values for the block, an identifying unit which generates identification information by comparing a plurality of evaluation values calculated by the calculating unit with a plurality of threshold values, and a controller which controls a quantization parameter on the basis of the identification information identified by the identifying unit.

Image encoding apparatus, image encoding method and program

An image of a prescribed frame of images of respective frames is set as a target image, and an area including a prescribed pattern is detected from the target image as a specific area. An image other than the target image is set as a non-target image, and the specific area in the non-target image is predicted. The images of the respective frames are encoded so that the specific area is encoded to have higher image quality than an area other than the specific area. In encoding, the images of the respective frames are encoded so that the specific area in the non-target image is not referred to from another frame.

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Tokyo, Japan

Saku Hiwatashi