213 results about "Local illumination" patented technology

The invention provides a stack image enhancement processing method, and relates to the technical field of image enhancement, and the method comprises the steps: collecting and preprocessing a stack image, and constructing a training sample set containing a risk level and an inclination angle label; an encoder-classifier dual-stage model is constructed, an encoder extracts features through a multi-scale feature extraction and enhancement module, a space perception attention enhancement module, a dynamic feature pyramid fusion module and a deformation gradient enhancement residual module, and a classifier outputs a risk level and an inclination angle; during training, classification and regression loss weights are dynamically adjusted, an adversarial enhancement sample is generated to enhance robustness, and a gradient is adaptively cut based on a channel attention enhancement vector. According to the method, local illumination interference can be effectively eliminated, multi-scale features are fused, the sensitivity to a sparse risk area is enhanced, and the self-adaptive enhancement processing effect of the heaped image in a complex environment is improved.

The invention discloses a nighttime image enhancement method based on multidirectional information extraction and color loss optimization, which comprises the following steps: firstly, collecting nighttime and normal light road scene images, constructing a nighttime road image enhancement model based on deep learning, and adopting an image enhancement framework based on GAN and a superficial layer semantic enhanced U-Net network as a generator; the five-layer convolutional network is used as a discriminator, then horizontal-vertical bidirectional differential convolution is used to extract multi-directional information of the image, a local illumination attention module is used to balance dark area brightness and bright area overexposure, and finally an adaptive color loss function is used to recover original colors of the image. The method can effectively solve the problems of image quality reduction, detail loss, color distortion and the like under the low-illumination condition, and is particularly suitable for night scene visual perception improvement in the field of vehicle-assisted automatic driving.

A device may perform local illumination compensation. The device may determine whether local illumination compensation is to be performed for a luma component of a video block. The device may determine a value of a chroma local illumination compensation variable based on local illumination compensation being performed for a luma component of a video block and one or more thresholds. The chroma local illumination compensation variable may indicate whether local illumination compensation is to be performed for a chroma component of the video block.

A non-transitory machine-readable medium of an electronic device storing computer-executable instructions for decoding a bitstream is provided. The computer-executable instructions, when executed by a processor of the electronic device, cause the electronic device to receive an image frame of the bitstream; determine a first mode from a plurality of local illumination compensation (LIC) modes; determine a first template of a block unit of the image frame and at least one second template of at least one reference block based on the first mode; determine a first model based on the first template and the at least one second template; obtain a slope adjustment parameter; adjust the first model based on the slope adjustment parameter; and modify a prediction illumination of the block unit of the image frame based on the adjusted first model.

A sensing system may include an illumination projector, an image sensor, and one or more controllers. The illumination projector may project a partial illumination pattern on a target object. The image sensor may sense the partial illumination pattern projected on the target object and may generate signals representative of the sensed illumination pattern. The one or more controllers may control the illumination projector and process the signals generated by the image sensor. The illumination projector may include a microlens array and an emitter array. A spatial relationship of emitters of the emitter array to microlenses of the microlens array may cause the emitter array and the microlens array to project light upon the target object in the partial illumination pattern.

The invention provides an image enhancement method based on double-domain illumination prior and electronic equipment, and relates to the field of image processing. The method comprises the steps of obtaining a to-be-processed illumination image; according to local illumination distribution characteristics of the to-be-processed illumination image, multi-scale enhancement is carried out on the to-be-processed illumination image after global illumination enhancement, a first illumination image after spatial domain enhancement is obtained, and the local illumination distribution characteristics comprise a brightness mean value and a brightness standard deviation; amplitude information of the to-be-processed illumination image in the frequency domain is enhanced, and a second illumination image enhanced in the frequency domain is obtained; and fusing the to-be-processed illumination image, the first illumination image and the second illumination image to obtain an enhanced target illumination image.

The invention relates to the field of underground illumination management, and discloses an underground multi-mode illumination collaborative management method and system in a red-mine scene, and the method comprises the steps: capturing the personnel distribution, equipment operation state, environment change and local illumination condition in a working region in real time, employing a time sequence prediction model based on deep learning, and carrying out the real-time monitoring of the operation region, the method comprises the following steps: analyzing and identifying local illumination requirements of different operation areas, predicting an insufficient illumination phenomenon occurring in a short time in the future in combination with a personnel moving track, an equipment moving area and an environmental condition, dynamically adjusting the working state of each illumination unit, calculating a control scheme of each illumination unit by utilizing a collaborative scheduling technology, and performing real-time control. And the output power of the lighting system is dynamically adjusted, an abnormal feedback mechanism is automatically triggered, the dimming strategy is recalculated and adaptive adjustment is carried out, and the effect of the current lighting dimming strategy is analyzed by using a multi-dimensional evaluation method. The method has the advantage of improving the safety of mine operation.

The invention provides an unmanned aerial vehicle remote sensing monitoring and evaluating method and system for field orchard diseases and insect pests, and relates to the technical field of orchard disease and insect pest monitoring and evaluating. The interference of complex background noise is effectively eliminated by constructing a ternary separation index integrating feature enhancement, background suppression and brightness normalization; a threshold value is determined based on the exponential distribution, pixels are accurately divided into a non-canopy background, a shadow canopy and an illumination canopy, and fine segmentation of an unstructured scene is achieved; constructing a gain compensation item by using a local illumination reference mean value, correcting a shadow canopy reflectivity curve, and eliminating illumination non-uniform interference; selecting a local high quantile to establish a health reference basis, coupling a discriminant item and an attenuation item, and resolving to obtain a physiological stress index, so as to realize acute capture of early weak disease characteristics; and performing power weighted accumulation on the abnormal pixel difference value, outputting a regional hazard level index, and objectively quantifying the overall disaster risk of the region through nonlinear aggregation.

The invention relates to the technical field of new energy power system control, in particular to an adaptive power control system based on distributed photovoltaic group dispatching and group control. The self-adaptive power control system based on distributed photovoltaic group regulation and group control comprises a distributed data acquisition module which is used for acquiring illumination intensity, environment temperature, inverter output power and bus voltage of all photovoltaic nodes in real time; according to the method, the threshold value is automatically adjusted along with the environment change through dynamic threshold value calculation and real-time fusion of illumination, temperature and historical voltage deviation data, so that the dynamic threshold value can be synchronously reduced in a photovoltaic shed tree shielding scene when local illumination is suddenly reduced, false triggering caused by threshold value stiffness under a fixed threshold value strategy is avoided, and the reliability of the photovoltaic shed tree shielding scene is improved. And meanwhile, by setting a multi-level power adjustment strategy, a flexible adjustment means is called preferentially, and the photovoltaic unit is cut off only in an extreme scene, so that the loss of power generation is reduced.

Disclosed in the present embodiment are a video coding method and device using bi-predictive local illumination compensation. In the present embodiment, an image decoding device acquires reference pictures of the current picture on the basis of a bitstream. The reference pictures include a reference picture in a direction of LX (X=0 or 1) and a reference picture in a direction of LY (Y=1-X). The image decoding device applies local illumination compensation to the current block regardless of whether the distance between the current picture and the reference picture in the LY direction is the same as the distance between the current picture and the reference picture in the LX direction.

The invention provides an inter-frame prediction method and device, electronic equipment and a computer program product, and relates to the technical field of video coding and decoding. The method comprises the steps that candidate motion information of a current to-be-predicted block is acquired, a reference block corresponding to the current to-be-predicted block is determined based on the candidate motion information, and the candidate motion information comprises an initial identification value corresponding to a local illumination compensation identification; determining a target template of the current block to be predicted, a reference template corresponding to the reference block, and template distortion between the target template and the reference template; performing identification updating operation on the initial identification value according to the template distortion to obtain an updated identification value; and performing inter-frame prediction processing on the current to-be-predicted block according to the update identification value to obtain a predicted value of the current to-be-predicted block. According to the implicit LIC identifier exporting method provided by the invention, on the premise of not additionally increasing the identifier cost, a more accurate LIC opening state is decided, and the prediction error caused by directly inheriting the LIC identifier is reduced.

The invention discloses an image shadow removal method based on multi-scale illumination decomposition, and belongs to the field of image processing, and the method comprises the steps: proposing an improved Retinex-based illumination decomposition network, and decoupling an input image into an illumination component representing illumination distribution and a reflection component containing the inherent texture of an object; a local illumination recovery method based on wavelet features is provided, frequency domain features are extracted by using multi-scale wavelet transform, weight distribution of a shadow area and a non-shadow area is dynamically adjusted through a wavelet attention mechanism, and global illumination consistency is ensured in combination with a reflection component; and a local detail enhancement method based on spatial domain features is provided, the image is further enhanced and refined by using the spatial domain features under the optimized illumination condition, and the texture authenticity of an output shadow removal result is ensured. According to the method and the device, end-to-end shadow removal of the input shadow image can be realized without depending on shadow position prior information, and a high-quality shadow removal result can be obtained.

The embodiment of the invention provides a global illumination rendering method and device, a GPU and a computer readable storage medium, and relates to the technical field of global illumination. Acquiring a plurality of local illumination models corresponding to the current frame; each local illumination model corresponds to one illumination probe, and the local illumination models are calculated by the CPU according to GI primitive parameters of adjacent grid units corresponding to the illumination probes; for each illumination probe in the current frame, performing iterative calculation according to a local illumination model of the illumination probe in the current frame and historical visibility information and historical illumination information of the illumination probe and an adjacent illumination probe of the illumination probe in the previous frame to obtain visibility information and illumination information of the illumination probe in the current frame; and performing global illumination rendering on the current frame according to the visibility information and the illumination information of each illumination probe in the current frame, thereby improving the operation performance and the picture effect of GI processing of the mobile terminal equipment.

In one embodiment, a video codec receives a local luminance compensation (LIC) linear model generated using samples of two adjacent, different blocks, which is a linear model of local luminance compensation (LIC), which is a linear model of local luminance compensation (LIC) generated using samples of the two adjacent, different blocks of samples of the two adjacent, different blocks of samples of the two adjacent, different blocks of samples. The linear model includes a scaling factor and a y-axis intercept. The video codec adjusts the linear model by applying an offset to adjust a scaling factor (or slope) of the linear model. The scaling factor or y-axis intercept of the adjusted linear model may be tailored to remain within a prescribed range. The offset may be selected from a set of predefined values for a syntax element signaled in a bitstream. The applied offset may be inherited from a previously encoded location. When a current block is encoded by bidirectional prediction, the linear model may be one of a first and a second linear model used to generate a predictor of the current block.

The application discloses an intelligent lighting device and relates to the technical field of intelligent lamps.The device comprises a lampshade, the lampshade comprises an outer cover and an inner cover, a gap is arranged between the outer cover and the inner cover, the outer cover and the inner cover are coaxially arranged and are connected through a plurality of light isolation sheets, the light isolation sheets are equidistantly distributed around the axis of the outer cover and the inner cover, and the light isolation sheets are connected through a surrounding sheet between the axis of the outer cover and the inner cover.The application forms a plurality of independent light source cavities through the outer cover and the annular inner cover nested structure, the light isolation sheets and the surrounding sheet, and the physical separation design effectively solves the pain point of the light efficiency dispersion of the traditional lamps, each cavity is equipped with an independent bulb and supports independent disassembly, not only realizes the physical isolation of the light source to reduce light pollution, but also reduces the maintenance cost through the clamping seat type fixing structure, when local illumination is needed, the specific cavity can be accurately lighted, compared with the overall illumination mode of the traditional lamps, the energy consumption can be obviously reduced.

A video processing method includes: for a conversion between a current video block of a first component of the video and a bitstream of the video, determining a prediction using the current video block from a linear combination of samples of a second video block of a second component of the video according to a rule; and performing the conversion based on the determination. The current video block and the second video block are encoded and decoded using a local illumination compensation tool.

Embodiments of this disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: for a conversion between video units and a bitstream of video, determining whether to apply an illumination compensation method to the video units based on information associated with the video units, wherein at least one Local Illumination Compensation (LIC) parameter of the illumination compensation method is derived based on at least one of: neighboring samples or a template; and performing the conversion based on the determination.

Example apparatus, methods, and computer-readable media for decoding video data are described. An example method includes determining to decode a current block of video data using a merge mode. The example method includes generating a first merge list for the current block, wherein generating the first merge list includes applying template matches to candidates of the first merge list. The example method includes generating a second merge list based on the first merge list. The example method includes decoding the current block using the merge mode and based on the first merge list or the second merge list.

The utility model discloses a bedside handrail, which comprises a handrail module, a fixing module and a lighting element, wherein the handrail module is used for being installed on the side of a bed; the fixing module is fixedly connected with the handrail module; and the lighting element is fixedly installed on the handrail module. The utility model effectively solves the pain point that the existing bedside handrail lacks the lighting function. When a user needs to get up at night or in a dim environment, the user can obtain local lighting through the lighting element on the handrail module without turning on the main lighting in the room. The light is concentrated in the bedside area, which can meet the needs of the user to see the path of getting up and ensure the safety of movement, can minimize the light interference on other resters in the same room, can avoid disturbing others from resting, is especially suitable for scenes such as a multi-person living ward and a health care room, and fully meets the "minimum interference principle" in the field of care.

An encoding method is provided for encoding a picture to generate a coded stream. The encoding method includes: generating a first prediction image of a current block included in a current picture by referring to a first region included in a reference picture different from the current picture; operating a bi-directional optical flow process to generate a second prediction image based on the first prediction image by referring to a second region entirely included in the first region, the bi-directional optical flow process being performed without applying local illumination compensation; and encoding the current block based on the second prediction image.

The utility model relates to a backlight source lamp mirror which comprises a mirror body, a frame arranged on the periphery of the mirror body, a lamp strip sectional material arranged on the frame and a lamp strip fixed to the lamp strip sectional material, side light-emitting LED lamps are arranged on the lamp strip, and the irradiation direction of the side light-emitting LEDs faces the edge position of the mirror body. The edge of the mirror is provided with a light-transmitting area with a coating on the back face of the mirror, the light-transmitting area is covered with a diffusion plate, and the light-transmitting area is opposite to the side light-emitting LED lamp. The side light-emitting LED lamps are arranged on the lamp strip, the side light-emitting LED lamps can guide and diffuse light rays, the light rays can be more evenly distributed on the light-emitting face, therefore, more even and softer light rays are provided, the problem that the center is bright, the edge is dark or local illumination is too strong possibly is effectively solved, and light spots and shadows are reduced.

The utility model relates to the technical field of ultrasonic cutting, in particular to a cordless portable ultrasonic cutter, and solves the problems that the ultrasonic cutter in the prior art is cumbersome in plugging-in and wired operation, and the use freedom degree and efficiency of the ultrasonic cutter in a mobile efficient operation scene are limited. A cordless portable ultrasonic cutter comprises an integrated storage box, a main machine groove is formed in the integrated storage box, a main shell is placed in the main machine groove, one end of the main shell is fixedly connected with a front cover, the end, away from the front cover, of the main shell is fixedly connected with a rear cover, and the end, away from the main shell, of the rear cover is provided with a rear cover plate. A decorative cover is fixedly connected to one side of the main shell, a machine core support is installed in an inner cavity of the main shell, a tool bit is installed in an inner cavity of the machine core support, and a clamping piece is installed in the end, away from the machine core support, of the tool bit. The mobile working platform can cope with a mobile efficient working scene, and the illuminating lamp is arranged in the mobile working platform, so that local illumination and accurate working of a user under low light are facilitated.

Embodiments of the present disclosure provide a solution for video processing. A method for video processing is presented. The method includes, for a transition between a video unit of a video and a bitstream of the video, deriving a local illumination compensation (LIC) parameter using at least one of: reconstructed samples in adjacent rows or reconstructed samples in columns adjacent to a current block in response to the video unit being encoded in a first target codec mode; and performing a conversion based on the LIC parameter.

Systems, methods, and instrumentalities are disclosed for performing operations associated with intra block copy (IBC) local illumination compensation (LIC) merge mode. An IBC-LIC model merge mode can be performed, which can include creating a model candidate list including model parameters from spatial neighboring neighbor blocks, non-neighboring neighbor blocks, history candidates, default mode, and the like. The model candidate list can be reordered based on template costs. The reordering of the model parameter candidate list can be improved, for example, to reduce computational burden. For example, the LIC model candidates can be reordered based on a determined merge candidate (e.g., a best merge candidate).

An example device includes memory, and one or more processors configured to determine to decode a current block of the video data using motion information of a second block of the video data. The one or more processors are configured to determine a value of a LIC flag of the second block, the value of the LIC flag of the second block indicative of LIC being applied to the second block. The one or more processors are configured to determine, based on the value of the LIC flag, to apply LIC to the current block. The one or more processors are configured to infer LIC model parameters of the current block to be equal to LIC model parameters of the second block. The one or more processors are configured to decode the current block including using the inferred LIC model parameters and the motion information of the second block.

A method and apparatus for video coding for using LIC (Local Illumination Compensation) are disclosed. According to this method, input data associated with a current block is received, wherein the input data comprise pixel data to be encoded at an encoder side or coded data associated with the current block to be decoded at a decoder side. Whether an LIC (Local Illumination Compensation) flag is signalled or parsed for merge mode is determined for the current block. In response to the LIC flag being signalled or parsed for the merge mode for the current block: a plurality of multi-tap LIC candidates are determined; the plurality of multi-tap LIC candidates with different filter shapes are inserted into different merge lists respectively; and the current block is encoded or decoded by using coding information comprising the different merge lists.

This invention discloses a tunnel advance detection method based on point spread function correction, comprising: setting up receiver points and shot points, and acquiring observed seismic data; constructing a rectangular grid tunnel geological model; given a velocity model, performing forward modeling to obtain the forward propagation wavefield; using the seismic data to propagate backward in time to obtain the backward propagation wavefield from the receiver points, and obtaining the reverse time migration imaging result through cross-correlation imaging conditions; using the Poynting vector method to obtain the propagation angles of the forward propagation wavefield from the shot point and the backward propagation wavefield from the receiver point; decomposing the wavefield into beam superposition based on the propagation angles, and then obtaining the local illumination matrix; performing coordinate transformation on the local illumination matrix to obtain the angular domain point spread function; and using the point spread function to correct the reverse time migration imaging result to obtain the corrected imaging result m. psf This invention can obtain a more accurate angular domain point spread function and can be used to correct tunnel advance detection imaging.

To provide systems, methods and instruments for calculating local illumination compensation (LIC) parameters for a bi-predicted coding unit (CU).SOLUTION: LIC parameters may be used to generate adjusted samples for a current CU and to address local illumination changes that may exist among temporal neighboring pictures. The LIC parameters are calculated on the basis of, bi-predicted reference template samples and template samples for the current CU. The bi-predicted reference template samples may be generated on the basis of reference template samples neighboring temporal reference CUs. The bi-predicted reference template samples are generated on the basis of, averaging the reference template samples. The reference template samples may correspond to template samples for the current CU. A CU may be or may include a coding block and / or a sub-block that may be derived by dividing the coding block.SELECTED DRAWING: Figure 9