H04N2201/04768

Systems and methods for asymmetric image splitter clock generation
11570400 · 2023-01-31 · ·

Described herein are systems and methods that provide for asymmetric image splitter image stream applications. In one embodiment, a system supporting image multi-streaming comprises an asymmetric image splitter engine that splits super-frame image streams into two or more image streams and a fractional clock divider circuit. The fractional clock divider may comprise a digital feedback control loop and a one-bit sigma delta modulator. The fractional clock divider circuit may provide compatible display clock frequencies for each of the two or more image streams. When a multi-image stream comprises the two image streams, the asymmetric image splitter engine adjusts a vertical asymmetry of a first image stream with a shortest height to same height as a second image stream by adding vertical padding to the first image stream. The super-frame image streams may comprise image streams from video, LIDAR, radar, or other sensors.

METHOD AND APPARATUS FOR CAPTURING AN IMAGE OF AN OBJECT USING A SCANNING MICROSCOPE

A method for capturing an image of an object includes guiding a scanning beam along a scanning trajectory over the object using a scanner, with the scanning movement being periodic in a direction. The scanning movement is sampled at a first sampling frequency for detecting and capturing a current position of the scanner as position values and radiation from the object is captured as captured sampling values at a second sampling frequency. Current values of the amplitude and the phase of the scanning movement are calculated. A current amplitude, phase and/or frequency and future changes in the amplitude, phase and/or frequency over time are calculated. An image grid is set, with grid elements being assigned the sampling values based on times at which the scanning beam crosses or will cross at least one boundary of the grid elements.

SYSTEMS AND METHODS FOR ASYMMETRIC IMAGE SPLITTER CLOCK GENERATION
20230156149 · 2023-05-18 · ·

Described herein are systems and methods that provide for asymmetric image splitter image stream applications. In one embodiment, a system supporting image multi-streaming comprises an asymmetric image splitter engine that splits super-frame image streams into two or more image streams and a fractional clock divider circuit. The fractional clock divider may comprise a digital feedback control loop and a one-bit sigma delta modulator. The fractional clock divider circuit may provide compatible display clock frequencies for each of the two or more image streams. When a multi-image stream comprises the two image streams, the asymmetric image splitter engine adjusts a vertical asymmetry of a first image stream with a shortest height to same height as a second image stream by adding vertical padding to the first image stream. The super-frame image streams may comprise image streams from video, LIDAR, radar, or other sensors.

Synchronization of MEMS projector slow axis mirror to input video frame rate
11054635 · 2021-07-06 · ·

A system includes a mirror controller driving fast and slow axis mirrors of a projector with fast and slow axis drive signals to reflect a collimated light beam in a scan pattern across the target. The scan pattern includes trace lines which cause display of an input video stream on the target, and retrace lines which operate to return the slow axis mirror to a proper location to begin a next frame of the scan pattern. The slow axis drive signal is generated to maintain a number of trace lines in each frame of the scan pattern constant across frames, but the slow axis drive signal is modified to lock a phase and frequency of the displayed video to a phase and frequency of the input video stream by changing a number of retrace lines in each frame of the scan pattern on a frame-by-frame basis by a non-integer number.

SYSTEMS AND METHODS FOR ASYMMETRIC IMAGE SPLITTER CLOCK GENERATION
20190387197 · 2019-12-19 · ·

Described herein are systems and methods that provide for asymmetric image splitter image stream applications. In one embodiment, a system supporting image multi-streaming comprises an asymmetric image splitter engine that splits super-frame image streams into two or more image streams and a fractional clock divider circuit. The fractional clock divider may comprise a digital feedback control loop and a one-bit sigma delta modulator. The fractional clock divider circuit may provide compatible display clock frequencies for each of the two or more image streams. When a multi-image stream comprises the two image streams, the asymmetric image splitter engine adjusts a vertical asymmetry of a first image stream with a shortest height to same height as a second image stream by adding vertical padding to the first image stream. The super-frame image streams may comprise image streams from video, LIDAR, radar, or other sensors.

Image forming apparatus for scanning light beam at non-uniform scan speed and exposing photosensitive member

An image forming apparatus includes: a halftone processing unit configured to perform halftone processing on image data by a dither matrix that includes a plurality of submatrices and decide an exposure region of an image. In at least one of a first dither matrix corresponding to a first section, and a second dither matrix corresponding to a second section adjacent to the first dither matrix in the main scanning direction and corresponding to a second section different from the first section in tone value, at least a size of an exposure region of an image formed by using a first submatrix corresponding to a predetermined tone value in the dither matrix and a size of an exposure region of an image formed by using a second submatrix corresponding to the predetermined tone value are different.

Method and apparatus for capturing an image of an object using a scanning microscope

A method for capturing an image of an object includes guiding a scanning beam along a scanning trajectory over the object using a scanner, with the scanning movement being periodic in a direction. The scanning movement is sampled at a first sampling frequency for detecting and capturing a current position of the scanner as position values and radiation from the object is captured as captured sampling values at a second sampling frequency. Current values of the amplitude and the phase of the scanning movement are calculated. A current amplitude, phase and/or frequency and future changes in the amplitude, phase and/or frequency over time are calculated. An image grid is set, with grid elements being assigned the sampling values based on times at which the scanning beam crosses or will cross at least one boundary of the grid elements.

IMAGE FORMING APPARATUS FOR SCANNING LIGHT BEAM AT NON-UNIFORM SCAN SPEED AND EXPOSING PHOTOSENSITIVE MEMBER
20180329335 · 2018-11-15 ·

An image forming apparatus includes: a halftone processing unit configured to perform halftone processing on image data by a dither matrix that includes a plurality of submatrices and decide an exposure region of an image. In at least one of a first dither matrix corresponding to a first section, and a second dither matrix corresponding to a second section adjacent to the first dither matrix in the main scanning direction and corresponding to a second section different from the first section in tone value, at least a size of an exposure region of an image formed by using a first submatrix corresponding to a predetermined tone value in the dither matrix and a size of an exposure region of an image formed by using a second submatrix corresponding to the predetermined tone value are different.

Systems and methods for asymmetric image splitter clock generation
12177604 · 2024-12-24 · ·

Described herein are systems and methods that provide for asymmetric image splitter image stream applications. In one embodiment, a system supporting image multi-streaming comprises an asymmetric image splitter engine that splits super-frame image streams into two or more image streams and a fractional clock divider circuit. The fractional clock divider may comprise a digital feedback control loop and a one-bit sigma delta modulator. The fractional clock divider circuit may provide compatible display clock frequencies for each of the two or more image streams. When a multi-image stream comprises the two image streams, the asymmetric image splitter engine adjusts a vertical asymmetry of a first image stream with a shortest height to same height as a second image stream by adding vertical padding to the first image stream. The super-frame image streams may comprise image streams from video, LIDAR, radar, or other sensors.

Channel scanning
09584850 · 2017-02-28 · ·

Methods, systems, and apparatus can provide channel scanning. In various examples, a channel scanning module can instruct scanning of multiple channels within a wideband frequency range by assigning channels to demodulators to attempt to lock onto a signal at the assigned channel. In other examples, a channel scanning module can instruct scanning for downstream channels by assigning channels to multiple narrowband tuners and multiple demodulators to attempt to lock onto a signal on the assigned channel.