An illumination system including an excitation light source, a first light splitting element, a wavelength conversion element, a second light splitting element, a third light splitting element and a fourth light splitting element is provided. The excitation light source provides a light beam. The first light splitting element allows the light beam to pass through to generate a first light beam or reflects it to generate a second light beam. The wavelength conversion element is located on a light path of the first light beam. The second light splitting element allows the first light beam to pass through to be transmitted to the wavelength conversion element to generate a third light beam and reflects the third light beam. The third light splitting element reflects the second light beam. The fourth light splitting element allows the second light beam to pass through and reflects the third light beam.

A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side multiband dichroic color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side multiband dichroic color filter are positioned on the image-side. The object-side half-mirror and the object-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.

A seeker imaging system and method includes at least one imager, a plurality of optical elements, and control electronics. The at least one imager is configured to output image frame data. The plurality of optical elements are configured to receive light and direct the light to the at least one imager. The control electronics are configured to receive the image frame data from the at least one imager. The control electronics is configured to obtain a plurality of initial images from each frame of the image frame data, and wherein the control electronics is configured to generate a single output image based upon the plurality of initial images.

An apparatus and method for video encoding comprising one or more electronic devices configured to: receive input data associated with a coding unit (CU) of video data, determine a binary tree partitioning structure corresponding to a block partitioning process including a binary tree partitioning process for the CU, wherein the binary tree partitioning structure represents partitioning the CU into a plurality of transform units (TUs), and when the binary tree partitioning process decides to apply binary tree partition to one given CU, said one given CU is always split into two Tus, and apply an encoding process comprising transform process to the CU by applying the encoding process at a level corresponding to the TUs.

A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side multiband dichroic color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side multiband dichroic color filter are positioned on the image-side. The object-side half-mirror and the object-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.

An illumination apparatus includes first and second laser light source units, each of which is configured by juxtaposing a plurality of laser light sources in an array, and which are provided to oppose each other. The illumination apparatus further include first and second reflecting members. The second reflecting member has a predetermined first gap and is divided into first and second reflecting portions, and the first reflecting member is disposed so as to pass through the first gap. The second outgoing light beam transmitted through the transmitting region of the first reflecting member and the fourth outgoing light beam transmitted through the transmitting region of the second reflecting member are reflected in the output light direction by the reflecting region of the second reflecting member and the reflecting region of the first reflecting member, respectively.

A method of spectrally multiplexing diode pump modules to increase brightness includes generating one or more pump beams from respective diode lasers at a first wavelength in a diode laser package, generating one or more pump beams from respective diode lasers at a second wavelength different from the first wavelength in the diode laser package, wavelength combining at least one of the pump beams at the first wavelength with at least one of the pump beams at the second wavelength to form one or more combined pump beams, and receiving the combined pump beams in a pump fiber coupled to the diode laser package. Laser systems can include multi-wavelength pump modules and a gain fiber having a core actively doped so as to have an absorption spectrum corresponding to the multiple wavelength, the gain fiber situated to receive the pump light and to produce an output beam at an output wavelength.

Embodiments disclosed herein address these and other issues by providing for an optical tag that uses an optical assembly with beam splitters to allow for simultaneous detection and retro-modulation, as well as the use of a camera to facilitate alignment of the optical tag with a laser interrogator. Additional components may be used to allow for a large aperture to be used, to help maximize light received by the optical tag and minimize diffraction of retro-modulated light, which can significantly increase distances at which the optical tag can operate. Moreover, a beam splitter may further be used to balance the light directed toward an optical sensor and a retro-modulator, to help achieve optimal results.

A method and apparatus of video coding using block partitioning process including a binary tree partitioning process are disclosed. The block partitioning structure corresponding to the block partitioning process for a block of video data is derived by parsing a first indicator associated with a current block and determining whether the binary tree partitioning process applies a binary tree partition to the current block based on a value of the first indicator. When it is determined that the binary tree partition is applied to the current block, the current block is always split into two primary sub-blocks with same size or two primary sub-blocks with different sizes. The block partitioning structure represents partitioning the block of video data into final sub-blocks. The block of video data is decoded based on the final sub-blocks decoded according to the block partitioning structure derived.

A method of video coding using block partitioning process including a binary tree partitioning process is disclosed. The block partitioning process is applied to a block of video data to partition the block into final sub-blocks. Coding process comprising prediction process, transform process or both for the block will be applied at the final sub-blocks level. The binary tree partitioning process can be applied to a given block when an associated indicator has a first value. In another embodiment, the quadtree partitioning process is applied to a block first. The quadtree leaf nodes are further partitioned using one or more stages of binary tree partitioning process. The quadtree partitioning process can be applied to a given block recursively to generate quadtree leaf nodes until a termination condition is met.