After a command to stop recording a video is received, an image capture device may buffer footage in a buffer memory. The buffer memory may be used as a post-capture cache. The footage buffered in the buffer memory may be appended to the end of previously captured footage, appended to the beginning of subsequently captured footage, and/or used to bridge two separately captured footage.

An information processing apparatus comprises: an output unit configured to perform video output to an external apparatus; a switching unit configured to switch an operation mode of the information processing apparatus between a first mode in which the video output by the output unit is performed and a second mode in which the video output by the output unit is not performed; and a synchronization control unit configured to, in the video output by the output unit, control whether or not to perform Genlock based on an external synchronization signal inputted from an external unit. The synchronization control unit, in a case where an instruction for performing Genlock has been received while operating in the first mode and not performing Genlock, prevents start of Genlock while operating in the first mode.

An electronic device including circuitry is provided. The circuitry generates a synchronization signal. The circuitry controls drive of one or more light-emitting devices based on the synchronization signal to generate a pattern of alternating light pulses. The circuitry further acquires a plurality of videos of the pattern of alternating light pulses from a plurality of imaging devices. The one or more light-emitting devices are positioned in a field of view of each of the plurality of imaging devices. The circuitry determines a frame in each video of the plurality of videos that includes a specific portion of the pattern of alternating light pulses. The determined frame in each of the plurality of videos corresponds to the same time instant. The circuitry synchronizes the plurality of videos based on the determination.

Real-time latency of audio/video streams is identified. Signatures of a reference audio/video stream and signatures of a test audio/video stream are buffered. A needle is constructed as a vector including a set of signatures of the reference audio/video stream. Correlations of the needle to successive vectors of sets of signatures of the test audio/video stream are computed using a correlation function that calculates relatedness of the needle vector to each of the successive vectors of the test audio/video stream. A synchronization offset is identified between the test stream and the reference stream according to a maximum correlation point of the correlations of the needle to the successive sets of signatures of the test audio/video stream. The reference audio/video stream and the test audio/video stream are aligned according to the synchronization offset.

[Problem to be Solved] When a cable length between a CHU and a CCU varies, images-capture timings of the plural CHUs mismatch. [Solution] In order to match the images-capture timing of the CHU, a phase control circuit in each CCU transfers, to the CHU, a frame pulse signal, a phase of which is advanced by a correction time corresponding to the cable from a time position of beginning of a frame of a reference synchronizing signal input to the CCU. In this way, a timing of the beginning of a frame of a synchronizing signal, which is received by the CHU from a synchronizing signal generation circuit, matches in a case of 1 m transfer, 400 m transfer, and 1 km transfer. Therefore, the images-capture timings of the CHUs can match.

Methods, devices, systems and computer software/program code products include techniques for creating a deep frame buffer, such techniques being implementable in conjunction with an apparatus comprising a main camera and an array of buddy cameras, the main camera and the buddy cameras being operable to capture images; and techniques for creating at least one depth buffer, such techniques being implementable in conjunction with an apparatus comprising at least two cameras.

After a command to stop recording a video is received, an image capture device may buffer footage in a buffer memory. The buffer memory may be used as a post-capture cache. The footage buffered in the buffer memory may be appended to the end of previously captured footage, appended to the beginning of subsequently captured footage, and/or used to bridge two separately captured footage.

An electronic device including circuitry is provided. The circuitry generates a synchronization signal. The circuitry controls drive of one or more light-emitting devices based on the synchronization signal to generate a pattern of alternating light pulses. The circuitry further acquires a plurality of videos of the pattern of alternating light pulses from a plurality of imaging devices. The one or more light-emitting devices are positioned in a field of view of each of the plurality of imaging devices. The circuitry determines a frame in each video of the plurality of videos that includes a specific portion of the pattern of alternating light pulses. The determined frame in each of the plurality of videos corresponds to the same time instant. The circuitry synchronizes the plurality of videos based on the determination.

A dual-aperture camera comprising a first camera having a first sensor and a first image signal processor (ISP), the first camera operative to output a first stream of frames, a second camera having a second sensor and a second ISP, the second camera operative to output a second stream of frames, and a synchronization and operation control module configurable to control operation of one camera in a fully operational mode and operation of the other camera in a partially operational mode and to output an output of the fully operational camera as a dual-aperture camera output, whereby the partially operational mode of the other camera reduces a dual-aperture camera the power consumption in comparison with a full operational mode of the other camera.

This invention provides an electronic apparatus which comprises a TIME-CODE terminal configured to output a time code signal which an external apparatus utilizes to perform synchronization related to a video, and a control unit configured to output a time code signal in which a bit in a predetermined field in the time code signal is set to a predetermined value, from the TIME-CODE terminal.