Abstract: A system for performing a medical procedure on a patient is provided. The system can include an imaging head defining a field of view relative to the patient. The imaging head can include at least one transmitter that emits at least one signal in the field of view, and at least one receiver that receives at least one reflected signal from the field of view. The at least one reflected signal received can be based on at least one electrical property of at least one material in the field of view. The system can further include a workstation, which can determine, based on the at least one reflected signal received by the at least one receiver, a location of at least one boundary of the material within the field of view. The system can include a display that displays an image of the location of the at least one boundary.

Abstract: The invention provides a three-dimensional object scanning device using structured lights and method using the same. A combination of specific monochrome light sources is used to construct the content of the structured lights to form a predetermined image, which is projected to the three-dimensional object such as an intraoral object. The combination of blue and green lights effectively eliminates reflective interference of the red or white environment within the intraoral space. Default patterns of the predetermined image are distinguished from one another by using well designed arrangement of color blocks so that specific coding information of location may be embedded and exploited.

Abstract: A method to improve the efficiency of coding high-dynamic range (HDR) signals in a dual-layer system is presented. A piece-wise linear, two-segment, inter-layer predictor is designed where base-layer codewords larger than a highlights threshold (Sh) are all mapped to a constant value. Given a target bit rate for the enhancement layer, which can be expressed as a percentage (?) of the bit rate of the base layer, an optimal highlights threshold is derived by computing estimated bit rates for the base and enhancement layers based on pixel complexity measures of pixels in the input HDR signal and the threshold value, and by minimizing an optimization criterion.

Abstract: An image processing device includes a display device, a video display controller configured to display video data imaged by an imaging device in a predetermined display region to be displayed by the display device, and a region display controller configured to display a plurality of display elements representing determination regions based on a plurality of types of determination functions with respect to the video data in the display region by superimposing the plurality of display elements on the video data in aspects different from each other.

Abstract: Disclosed are a method for partitioning a block and a decoding device. A method for decoding an image comprises the steps of: partitioning one prediction unit, in which an intra prediction is performed in a predetermined intra prediction mode, into a plurality of transform units; and performing the intra prediction for each of the plurality of the transform units on the basis of the predetermined intra prediction mode. Thus, the invention increases the image encoding efficiency.

Abstract: The present invention relates to the field of aircrafts and provides a photographic assembly applied to an aircraft, where the aircraft includes a vehicle body. The photographic assembly includes: a vibration absorption member, a frame provided at the periphery of the vehicle body and connected to the vehicle body through a vibration absorption member, a gimbal connected to the frame and a camera connected to the gimbal. The frame of the photographic assembly in embodiments of the present invention can be mounted on unmanned aerial vehicle bodies of different specifications and the frame is sleeved over the vehicle body, so that the structure of the vehicle body can be designed compactly. The embodiments of the present invention further provide an unmanned aerial vehicle having the photographic assembly.

Abstract: A coder (e.g., an encoder or decoder) implements coding of two dimensional blocks of image data using two dimensional differential pulse code modulation (2D DPCM). The coder may switch between DPCM and other types of coding, such as transform coding on a block by block basis. The 2D DPCM may obtain a reconstructed pixel within the two dimensional bloc and code a second, different, pixel within the two dimensional block using the reconstructed pixel. The coder may also create a bitstream of entropy encoded residuals that supports hybrid implicit/explicit specification of coding parameters.

Abstract: Utility locators for providing information about hidden or buried pipes or other cavities are disclosed. A locator may be configured to provide positional information associated with the buried utility based on signals received from a line trace signal and a sonde signal and present the positional information on a visual display or other output device.

Abstract: The functional effect of having additional color-sensing cone types in the human eye is implemented by an encoding of some spectral information differently for the left and right eyes. This different encoding for identical features seen by the left and right eyes is interpreted as a perceptively different feature by the human brain, allowing additional spectral information to be conveyed through the limited tristimulus sensitivity of the human eye.

Abstract: An image coding method for coding a current block, by assigning two or more reference picture indexes to one or more reference pictures that are different from a current picture which includes the current block, and the image coding method comprises the following when the two or more reference picture indexes are used to code the current block: determining whether or not reference pictures identified by two or more reference picture indexes are identical to each other; and switching, based on a result of the determining, between whether or not a prediction direction for coding the current block in a predetermined coding mode is fixed.

Abstract: Provided is an imaging apparatus (10) including an imaging optical system (20), an image sensor (31), one or more circuit boards including at least one of the image sensor and an electronic component mounted thereon, a housing (11) including an opening that exposes the imaging optical system to a subject and supporting the imaging optical system, the image sensor, and the one or more circuit boards, a signal terminals (41) that transmit an image signal of the subject image captured by the image sensor to an outside of the housing, and a heat transfer unit (44) having heat conductivity connected to the plurality of terminals, the heat transfer unit that transfers heat generated from at least one of the image sensor and the electronic component to the plurality of terminals.

Abstract: A system for automatically adjusting a baseline of an imaging system for stereoscopic imaging and methods for making and using same. The imaging system includes a plurality of imaging devices that cooperate via a baseline adjustment mechanism. The imaging devices can acquire images of an object of interest and ascertain an object distance between the stereoscopic imaging system and the object of interest using triangulation. Based on the object distance, the baseline adjustment mechanism automatically adjusts a baseline between any pair of imaging devices. The baseline can be reduced when the object of interest is proximate to the imaging system and can be increased when the object of interest is distal. Once the baseline has been adjusted, one or more extrinsic parameters of the imaging devices are calibrated using a two-step optimization method. The imaging system is suitable for use aboard a mobile platform such as an unmanned aerial vehicle.

Abstract: Embodiments of the present application disclose a light field display control method and apparatus and a light field display device. The light field display control method comprises: determining a partial depth distribution sub-region of content according to at least depth distribution information of the content; and adjusting a focal length of a first lenslet according to at least a display depth of field (DoF) range of a light field display device and the depth distribution sub-region, wherein the first lenslet is a lenslet that is in a lenslet array of the light field display device and affects display of a first object, and the first object is a part, which is located in the depth distribution sub-region, of the content. The present application can improve display quality of an object which is located in a partial depth distribution sub-region of content to be displayed or content being displayed.

Abstract: Methods and apparatus relating to encoding and decoding stereoscopic (3D) image data, e.g., left and right eye images, are described. Various pre-encoding and post-decoding operations are described in conjunction with difference based encoding and decoding techniques. In some embodiments left and right eye image data is subject to scaling, transform operation(s) and cropping prior to encoding. In addition, in some embodiments decoded left and right eye image data is subject to scaling, transform operations(s) and filling operations prior to being output to a display device. Transform information and/or scaling information may be included in a bitstream communicating encoded left and right eye images. The amount of scaling can be the same for an entire scene and/or program.

Abstract: An imaging system includes an imaging unit, a detecting unit, a recording unit, a correcting unit, and a video generating unit. The imaging unit captures images of a plurality frames. The detecting unit detects a tilt of the imaging unit with respect to a reference direction. The recording unit records time-series data of the tilt detected by the detecting unit. The correcting unit applies tilt correction to an image of each of the frames captured by the imaging unit, based on the time-series data of the tilt recorded by the recording unit and additional information unique to the imaging unit. The video generating unit generates video data based on the image of each of the frames corrected by the correcting unit.

Abstract: A system may be provided for optically testing the integrity of a sealed article such as a lithium-ion battery. The system may include a chamber, a pressurizing apparatus that provides a pressure differential between the interior and exterior of the chamber, and an optical imaging apparatus that detects a change in shape of the article in response to provision of the pressure differential. The optical imaging apparatus may be a shearography device, which may be connected to a computing apparatus that receives images before and after provision of the pressure differential and generates a comparison image indicating the change in shape. The comparison image may be manually or automatically analyzed to determine whether the change in shape is significant, indicating the existence of a proper seal.

Abstract: Methods, apparatuses and systems may provide for conducting a quality assessment of a depth localization mode, a color localization mode and an inertia localization mode, and selecting one of the depth localization mode, the color localization mode or the inertia localization mode as an active localization mode based on the quality assessment. Additionally, a pose of a camera may be determined relative to a three-dimensional (3D) environment in accordance with the active localization mode.

Abstract: Various examples are directed to methods and systems for compressing panoramic video. An image processor may receive a frame comprising a plurality of pixel values arranged according to a two-dimensional grid and divide the frame into a plurality of pixel blocks comprising a first pixel block and a second pixel block. The first pixel block may be positioned in a first edge column adjacent a first edge of the frame and the second pixel block may be positioned in a second edge column adjacent a second edge of the frame opposite the first edge. The image processor may identify a spatial continuity between the first pixel block and the second pixel block and replace the first pixel block with a reference to the second pixel block.

Abstract: A camera device according to an aspect of the invention includes an imaging unit, an imaging direction adjustment unit, a direction control unit that controls the imaging direction adjustment unit, a camera-side tracking processing unit that analyzes captured image data to acquire first target information indicating the position of a tracking target and outputs the first target information, a camera-side communication unit that receives second target information from a terminal device, and a camera-side target information correction unit that corrects the first target information on the basis of the second target information.

Abstract: The present invention provides an improved video encoding and decoding method, which maintains the advantages of LCU-based filter parameter signaling as compared to frame-based filter parameter signaling, but considerably reduces signaling overhead. Therefore, signaling syntax is modified by grouping LCUs (Largest Coding Units) together for signaling employing a mapping function. Consequently, filter parameters no longer need to be signaled for each single LCU, but for a group of several LCUs. The syntax structure of the invention avoids redundancies present in the state of the art as far as possible and thus increases the information content of the syntax elements. At the decoder side, the mapping function is applied to infer information about the filter parameters to be applied to a current LCU from information encoded in different syntax structures.