Embodiments relate to extracting features from images, such as by identifying keypoints and generating keypoint descriptors of the keypoints. An apparatus includes a pyramid image generator circuit, a keypoint descriptor generator circuit, and a pyramid image buffer. The pyramid image generator circuit generates an image pyramid from an input image. The keypoint descriptor generator circuit processes the pyramid images for keypoint descriptor generation. The pyramid image buffer stores different portions of the pyramid images generated by the pyramid image generator circuit at different times and provides the stored portions of the pyramid images to the keypoint descriptor generator circuit for keypoint descriptor generation. When first portions of the pyramid images are no longer needed for the keypoint descriptor generation, the first portions are removed from the pyramid image buffer to provide space for second portions of the pyramid images that are needed for the keypoint descriptor generation.

An image terminal apparatus includes: an imaging unit configured to image an object continuously and generate image data sequentially; a buffer memory configured to store temporarily and sequentially the image data; an I/F circuit configured to sequentially write the image data stored in the buffer memory on a recording medium attached externally; a communicating circuit configured to sequentially transmit the image data stored in the buffer memory through communication with a peripheral device according to a predetermined communication standard; a detecting circuit configured to detect a remaining amount of data storable in the buffer memory; a first determining circuit configured to determine whether the remaining amount is equal to or less than a predetermined threshold; and a data control circuit configured to control a mode of the image data sequentially stored in the buffer memory based on a determination result by the first determining circuit.

A computer vision processing device is provided which comprises memory configured to store data and a processor. The processor is configured to store captured image data in a first buffer and acquire access to the captured image data in the first buffer when the captured image data is available for processing. The processor is also configured to execute a first group of operations in a processing pipeline, each of which processes the captured image data accessed from the first buffer and return the first buffer for storing next captured image data when a last operation of the first group of operations executes.

Examples described relate to systems, methods, and apparatus for transmitting image data. The apparatus may comprise a memory buffer configured to store data elements of an image frame and generate a signal indicating that each of the data elements of the image frame have been written to the memory buffer, a processor configured to initiate a flush operation for reading out at least one data element of the image frame from the memory buffer and to output the at least one data element at a first rate, a rate adjustment unit configured to receive the at least one data element from the processor at the first rate and to output the at least one data element at a second rate, and a multiplexer configured to receive the at least one data element from the processor at the first rate and configured to receive the at least one data element from the rate adjustment unit at the second rate. The multiplexer may select the at least one data element at the second rate for transmitting on a bus in response to receiving the signal from the memory buffer.

A computer vision processing device is provided which comprises memory configured to store data and a processor. The processor is configured to store captured image data in a first buffer and acquire access to the captured image data in the first buffer when the captured image data is available for processing. The processor is also configured to execute a first group of operations in a processing pipeline, each of which processes the captured image data accessed from the first buffer and return the first buffer for storing next captured image data when a last operation of the first group of operations executes.

All image capturing apparatus includes an interval shooting section (51) that performs an interval shooting process, a lighten compositing section (54) that performs a lighten compositing process using images captured one by one by the interval shooting process, and a composite-image-in-progress displaying section (55) that, when a first operation is performed, causes a composite image in a first memory area, which is used as a compositing buffer for the lighten compositing process, to be displayed on an LCD monitor without causing the interval shooting process to be stopped.

An image forming apparatus includes a sheet conveying portion, an image data outputting portion, a plurality of buffer memories, an image forming portion, and a timing control portion. At least one of the plurality of buffer memories corresponding to at least one predetermined channel among the plurality of color channels other than a head color channel is configured to store image data of two different pages individually. After the image data outputting portion starts outputting image data of the first page to the buffer memory corresponding to the predetermined channel, the image data outputting portion starts outputting image data of the second page to the buffer memory regardless of whether or not the image data of the first page has been read from the buffer memory.

An image capturing apparatus includes an interval shooting section (51) that performs an interval shooting process, a lighten compositing section (54) that performs a lighten compositing process using images captured one by one by the interval shooting process, and a composite-image-in-progress displaying section (55) that, when a first operation is performed, causes a composite image in a first memory area, which is used as a compositing buffer for the lighten compositing process, to be displayed on an LCD monitor without causing the interval shooting process to be stopped.

An electronic device includes a camera module including image acquiring circuitry and at least one lens; a display configured to display an image acquired through the camera module; a processor electrically connected to the camera module and the display; and a memory electrically connected to the processor, wherein the memory stores instructions which, when executed, cause the processor to provide at least a portion of at least one image acquired through the camera module to the first application in response to a camera service request of a first application and to distribute the at least one image to the first application and the second application, when the processor receives a camera service request from a second application while the processor provides the at least a partial image to the first application.

An image capturing apparatus includes an interval shooting section (51) that performs an interval shooting process, a lighten compositing section (54) that performs a lighten compositing process using images captured one by one by the interval shooting process, and a composite-image-in-progress displaying section (55) that, when a first operation is performed, causes a composite image in a first memory area, which is used as a compositing buffer for the lighten compositing process, to be displayed on an LCD monitor without causing the interval shooting process to be stopped.