308 results about "Latent image" patented technology

A method includes adding an outpaint mask to an image to generate a masked image. The method also includes processing the image using an encoder neural network to generate an image representation of the image in a latent space. The method further includes processing the masked image using a convolution neural network and adding the image representation to generate an image embedding. The method also includes processing the image representation and the image embedding using at least one of a diffusion model and an interpolation process to generate a noisy latent image representation. The method further includes using a large language model to contextualize an outpainting prompt. The method also includes denoising the noisy latent image representation based on the contextualized outpainting prompt to generate a denoised latent image representation. In addition, the method includes processing the denoised latent image representation using a decoder neural network to generate an outpainted image.

The invention aims to provide a multi-condition diffusion model-based Shengtuo calligraphy rubbing fusion restoration method, which comprises the following steps of: firstly, acquiring a plurality of Shengtuo calligraphy rubbing images from different sources, preprocessing the images, and constructing a standardized training data set; designing a multi-image feature extraction and alignment module to obtain a fused structural feature tensor; constructing a core network structure of the multi-conditional diffusion model, and supporting guidance of a plurality of conditional vectors; jointly inputting the obtained fusion structure feature tensor and a plurality of condition guide items into a diffusion model to generate a fused and repaired potential image; and finally, restoring the potential image obtained by reconstruction into a final output image through a reverse mapping module. According to the method, the problems of blurring, pen lacking, breakage and non-uniform styles during fusion and restoration of the rubbing image in the prior art are solved.

The invention discloses a multi-degraded image restoration method based on semantic guidance. According to the method, for degraded images captured by a vehicle-mounted camera under severe weather conditions, potential features of the images are extracted by adopting a trunk network based on Transform, multi-modal semantic information is extracted in combination with a CLIP visual language model, and semantic guidance is provided for different degradation types through a dynamic text prompt generation mechanism. A self-adaptive feature fusion module is designed, channel attention and space attention mechanisms are combined to realize effective integration of multi-modal features, and a degradation feature extraction and fusion module is introduced to enhance the generalization ability of the model. According to the semantic guidance multi-type image recovery network SGIRN provided by the invention, the global modeling capability of the Transform and the cross-modal representation capability of the CLIP visual language model are combined, so that high-quality recovery of various weather degradation types is realized.

An image forming apparatus includes a light emitter; a photoconductor to form a latent image on a surface of the photoconductor; a deflector to deflect light at a write start timing; an optical sensor; and circuitry. The optical sensor detects the scanning light scanning, with one of multiple sensitivities. The circuitry adjusts a light intensity of the emitted light and the write start timing based on the detection signal; switches from the one of multiple sensitivities to other of multiple sensitivities or from the other of multiple sensitivities to the one of multiple sensitivities based on the light intensity adjusted; and determines whether to perform a color misregistration correction based on a shift in the write start timing caused by a switch from the one of multiple sensitivities to the other of multiple sensitivities or from the other of multiple sensitivities to the one of multiple sensitivities.

Disclosed in the present invention is a process cartridge, comprising: a photoconductor drum, wherein an electrostatic latent image can be formed on the photoconductor drum; a developer accommodating chamber for accommodating a developer therein; a rotatable developer roller, wherein the axial direction of the developer roller extends in the length direction, and the developer roller is configured to transfer the developer to the photoconductor drum to develop the electrostatic latent image on the photoconductor drum; a rotatable toner supply roller, wherein the axial direction of the toner supply roller extends in the length direction, and the toner supply roller is in contact with the developer roller to supply the developer to the developer roller; a developing chamber, wherein the developer roller is located in the developing chamber, and when the process cartridge is mounted to an electronic imaging device, the developing chamber is located above the developer accommodating chamber; and a developing coupling which receives a driving force to enable the developer roller and the toner supply roller to rotate, and when the developer roller and the toner supply roller are driven to rotate, the peripheral speed of the surface of the toner supply roller is smaller than or equal to the peripheral speed of the surface of the developer roller. The solution ensures stable driving of the developer roller, the toner supply roller, etc., in a developing unit.

A method of image compression implemented by a coding device. The method comprises receiving an input latent image comprising latent image patches containing latent image data, selecting a subset of the latent image patches; applying the latent image patches to the input of a first encoder in the coding device, receiving conditioning side information, encoding, by the first encoder, the subset of latent image patches based on the conditioning side information to generate encoded latent image patches. The method further includes combining the encoded latent image patches with a plurality of mask tokens, applying the combined encoded latent image patches and plurality of mask tokens to the input of a decoder in the coding device, decoding the combined encoded latent image patches and plurality of mask tokens based on the conditioning side information to generate a reconstructed latent feature map, and rearranging the reconstructed latent feature map to produce an output latent image.

A developing device includes a developer bearer, a developer container, a supply rotator, and a layer thickness regulator. The developer bearer is rotatable in a first direction to supply developer to a latent image bearer. The developer container contains the developer to be supplied to the developer bearer. The supply rotator supplies the developer in the developer container to the developer bearer at a contact position at which the supply rotator contacts the developer bearer. The layer thickness regulator forms a layer of the developer having a regulated thickness on the developer bearer. The developer bearer collects residual toner from the latent image bearer. The supply rotator rotates in a second direction opposite the first direction of the developer bearer at the contact position. The supply rotator has a surface of a foam layer including a single foam cell having a diameter smaller than 300 μm.

The invention relates to the technical field of optical waveguide preparation, and discloses an optical waveguide mother set splicing-free preparation method based on a DMD dynamic mask, and the method comprises the steps: obtaining the layout data of an optical waveguide mother set as initial design information, and generating a mask pattern sequence which comprises a plurality of partition mask patterns; establishing a pixel mapping relationship between the on-off state of the micro-mirror unit and the partition mask pattern; driving the transparent substrate to execute partition positioning movement on the platform, and controlling the current exposure area of the photosensitive material layer to be aligned with the projection area of the partition mask pattern; on the basis of the pixel mapping relation and the partition positioning movement result, activating the mask pattern, and carrying out non-interval continuous exposure to form a full-page latent image pattern; the whole latent image pattern is subjected to developing treatment, the embossment structure of the optical waveguide master mask is treated and transferred into the transparent substrate, a waveguide core layer pattern is formed, the effects of non-interval continuous exposure and no segmented splicing are achieved, the preparation period of the surface embossment optical waveguide master mask is shortened, and the processing efficiency and the batch preparation yield are improved.

An image forming apparatus including: a photosensitive drum; a rotary configured to be rotatable around an axial direction; a toner cartridge configured to be supported by the rotary and have a discharge opening discharging toner, and a developing unit configured to be supported by the rotary, develop an electrostatic latent image formed on the photosensitive drum at a development position, and have a discharged receiving opening receiving toner, an accommodating chamber accommodating the received toner, a developing roller, a supply roller rotating around a roller axis along the axial direction and supplying the housed toner to the developing roller, and a guide portion, in which the guide portion guides toner moving in a direction intersecting the axial direction away from the receiving opening, is used.

The invention discloses a water quality turbidity intelligent monitoring method and system based on vision, and relates to the technical field of water environment monitoring and intelligent perception, an industrial camera and an event camera perform coaxial acquisition, and an electric control polaroid and an adjustable incident angle realize angle-polarization dual scanning and construct a polarization prior tensor. Adaptive standardization is carried out on the dazzle removal reference frame, a forward operator is established by combining polarization geometry and particle size mapping, and a latent image is obtained through physical consistency inversion of split iteration. The method comprises the following steps: extracting multi-scale features from RGB / HSV / Lab three branches and a cavity pyramid by using time domain polarization transformation and reliability selection, carrying out cross-space fusion based on particle size spectrum estimation and spatial gating, outputting a turbidity value, and synchronously giving a particle size spectrum, depolarization confidence and flicker intensity. And the internet-of-things execution subsystem performs hierarchical linkage according to threshold values and performs online self-calibration.

An image forming apparatus includes: a photoconductor; a charging portion that charges a surface of the photoconductor; an exposure portion including a substrate including a plurality of light emitting portions for exposing the photoconductor; a developing portion that develops a latent image formed on the surface of the photoconductor with toner; a fan that generates an airflow for cooling the exposure portion; and a duct that communicates with the fan and communicates with the support portion, the duct guiding the airflow generated by the fan to the substrate; in which a part of the duct is formed by a charging support portion that supports the charging portion, a developing support portion that supports the development, and a duct portion, and a space between the duct portion and the charging support portion and a space between the duct portion and the developing support portion are sealed by a sealing member.

The invention discloses a fan blade aerial image deblurring method fused with auxiliary image prior, which comprises the following steps of: establishing an image degradation model, estimating a blurring kernel and a potential image in the image degradation model by optimizing a target function, and after the blurring kernel is obtained, performing image deblurring on the image degradation model; non-blind deconvolution is applied to the input blurred image to generate a final clear image. According to the method, the auxiliary image is introduced in the process of estimating the blurring kernel, the structural consistency and defect identification degree of the recovered image are remarkably improved, a breakthrough from natural image priori to task specific priori is achieved, after the blurring kernel estimation is completed, standard deconvolution is not directly used, and the algorithm is simple and convenient to operate. Compared with the prior art, the non-blind deconvolution energy model fusing multiple image structure priori is innovatively proposed, the common problems of artifacts, edge blurring and the like in a traditional deconvolution image are greatly solved, high-fidelity image reconstruction is achieved, and the accuracy and robustness of a subsequent defect detection system are enhanced.

The present application relates to the field of image forming apparatus, and particularly relates to a control method of image forming apparatus and related equipment. The image forming apparatus comprises: a plurality of image carriers, a primary transfer component, an intermediate transfer body, a first driving component and a control unit; each image carrier is used for carrying an electrostatic latent image and forming a toner image through toner development; the intermediate transfer body is configured to abut or separate from the image carrier to receive the toner image on the image carrier; the primary transfer component is used for abutting the intermediate transfer body on the image carrier to transfer the toner image on the image carrier to the intermediate transfer body; the first driving component is used for driving the primary transfer component to move, so that the intermediate transfer body switches between the state of abutting and separating from the image carrier; and the control unit controls the primary transfer component to drive the intermediate transfer body to abut the image carrier when the power supply of the developing component to the corresponding developing component of the image carrier is turned on.

To provide an image forming apparatus that can efficiently execute maintenance.SOLUTION: According to an embodiment, an image forming apparatus has a plurality of photoreceptors, an exposure unit, developing units, and a processor. The exposure unit irradiates the surfaces of the plurality of photoreceptors with rays of light according to images formed on the plurality of photoreceptors. The developing units supply toner to the surfaces of the plurality of photoreceptors on which electrostatic latent images are formed by the irradiation of the rays of light from the exposure unit. The processor adjusts, for each of the photoreceptors, a contrast potential for supplying the toner from the developing units to the electrostatic latent images formed on the surfaces of the plurality of photoreceptors, and when a contrast potential having a difference from the other contrast potentials exceeding a reference value is present, notifies a warning.SELECTED DRAWING: Figure 3

The image forming system includes: an image holding body that rotates; a charging unit that rotates while being in contact with the image holding body and charges the surface of the image holding body by applying a charging bias voltage; a pressing member that presses the charging portion against the image holding body so as to create a bite width; a developing unit that develops a latent image formed on the surface of the image holding body with a toner; and at least one processor that performs a process in which an absolute value of a surface potential of the image holding body charged by the charging portion is lower than an absolute value of a developing potential of the developing portion; the absolute value of the potential of the charging part is raised in a rectangular wave manner only during a set time during which the charging part instantly discharges before and after the nip width of the image holding body and does not discharge at the center of the nip width, and the absolute value of the potential of the charging part is raised in a rectangular wave manner only during a set time during which the charging part does not discharge at the center of the nip width. The absolute value of the surface potential of the image holding body is higher than the absolute value of the developing potential.

There is provided an apparatus having an exposure head including K light-emitting chips arranged along a rotation axis of a photosensitive body. Light-emitting elements to form a latent image are arranged in each light-emitting chip. The apparatus includes: a dividing unit that divides image data into K pieces of partial image data for the K light-emitting chips that are temporarily stored in memory resources; and a control unit that controls output of the K pieces of partial image data from the memory resources to the K light-emitting chips. The control unit controls allocation of the memory resources to the K light-emitting chips based on information indicating which ones of odd-numbered and even-numbered light-emitting chips of the K light-emitting chips are arranged on downstream side with respect to the photosensitive body which rotates.

To provide an image forming apparatus that can efficiently remove a toner accumulated on a developing device to more surely prevent an image defect caused by the toner.SOLUTION: An image forming apparatus comprises: a developing device 412 that attaches toner to a latent image, with a toner carrier (developing roller 204) arranged opposite to a latent image carrier (photoreceptor drum 413) on which the latent image is formed, to develop the latent image; a pressing and separation mechanism 416 that presses the developing device 412 against the latent image carrier or separates the developing device 412 from the latent image carrier; an excitation mechanism (drive transmission member 214) that applies vibration to a housing (developer housing 201) of the developing device 412; and a first control unit (control unit 100) that controls the pressing and separation mechanism 416 and the excitation mechanism. The first control unit causes the pressing and separation mechanism 416 to separate the developing device 412 from the latent image carrier and subsequently causes the excitation mechanism to vibrate the housing of the developing device 412.SELECTED DRAWING: Figure 3

A cartridge includes a frame; a photosensitive drum supported by the frame so as to be rotatable about a rotational axis thereof; a cleaning member for removing residual toner on the photosensitive drum; a charging roller for electrically charging a surface of the photosensitive drum; a developing roller for developing an electrostatic latent image on the photosensitive drum by supplying toner to the photosensitive drum; a residual toner conveying member for conveying the residual toner, removed by the cleaning member in a direction of the rotational axis; and a residual toner accommodating portion for accommodating the residual toner conveyed by the residual toner conveying member and detachably mounted to the frame. The residual toner accommodating portion includes a receiving opening, in a part thereof in the direction of the rotational axis, for receiving the residual toner conveyed by the residual toner conveying member.

A developing device includes a developer holder that supplies developer to an image carrier on which an electrostatic latent image is formed. The developing device further includes a removing member that removes the developer that has not been supplied to the image carrier and remains on the developer holder and a transport unit that includes a helical rotating body, the transport unit rotating the rotating body to transport the developer and supply the developer to the developer holder. The developing device further includes an accommodating unit that accommodates the developer holder, the removing member, and the transport unit; and a drive mechanism that operates the developer holder and the transport unit together in a first operation mode for image formation and operates the developer holder and the transport unit individually in a second operation mode for cleaning an inside of the accommodating unit by removing the developer.

Toner for development of electrostatic latent images has a toner particle including a toner core particle and a shell layer that coats it. The toner core particle includes, at least, a binder resin and a colorant. The toner core particle contains as the binder resin a particular polyester resin having a repeating unit derived from 1,2-propanediol. The shell layer contains a alcoholic hydroxy group containing resin having one or more types of repeating unit having an alcoholic hydroxy group. The proportion of an alcoholic hydroxy group containing monomer in the alcoholic hydroxy group containing resin is 1 mass % or more. The coverage ratio of the surface of the toner core particle with the shell layer is 75% or more.

This prevents water vapor inside the device from condensing on the photosensitive drum, thereby reducing the negative impact on print quality. [Solution] The image forming device 1 has a process cartridge 67 that can be attached to the main body housing 3, an exposure unit that exposes the photosensitive drum 61 to form an electrostatic latent image, a fixing unit 8 that has a heater 81A and fixes the developer image to a sheet, and a control unit 100 that controls the process cartridge 67, exposure unit, and fixing unit 8 and performs printing, and the control unit 100 executes count value acquisition control that acquires a count value C that changes depending on the number of sheets printed by fixing the developer image to a sheet by the fixing unit 8, and preparatory rotation control that rotates the photosensitive drum 61 and developing roller 71 without forming an electrostatic latent image on the photosensitive drum 61 when the process cartridge 67 is attached to the main body housing 3, and switches between executing the preparatory rotation control for a first period or a second period that is longer than the first period based on the count value C.

To suppress image defects caused by foreign matters (sheet powder and the like) collected together with transfer residual toner being caught between a developer carrier and a layer thickness regulating member, and maintain image quality at a high image area ratio.SOLUTION: A developing device 4 supplies a developer in a developer accommodating section 46 onto a developer carrier 41 which is rotationally driven by a supply rotating body 42, develops a latent image on a latent image carrier 1 and collects transfer residual toner T3 on the latent image carrier after thinning the developer on the developer carrier by a layer thickness regulating member 44. The supply rotating body is rotationally driven such that its surface moving direction is opposite to the surface moving direction of the developer carrier at an opposing part to the developer carrier. The surface of the supply rotating body is an adhesion-suppressing surface that suppresses adhesion of foreign matters collected together with the transfer residual toner.SELECTED DRAWING: Figure 2

A display technology capable of displaying special images is provided. A display body (1) includes: a light-shielding layer (12) having a plurality of slits (SL) arranged at intervals in the width direction; and an image recording layer (22) spaced apart from a main surface of the light-shielding layer (12) and opposite it, and recording a latent image that is made visible by being partially hidden by the light-shielding layer (12).

A developing device that develops a latent image formed on a surface of an image bearer includes a housing, a developing roller, a first conveying screw, a second conveying screw, a partition, and a toner concentration sensor. The first conveying screw is disposed below the developing roller and supplies developer to the developing roller. The second conveying screw is disposed below the first conveying screw and forms a circulation path for the developer together with the first conveying screw. The partition separates a first conveyance path and a second conveyance path in a region excluding a first communication portion formed on one end of the housing and a second communication portion formed on the other end of the housing. A detection region of the toner concentration sensor is located below the partition at a bottom of the second conveyance path and at a position close to the first communication portion.

An image forming apparatus includes an apparatus body, an image bearing member, and a process unit attached to the apparatus body. The process unit includes a frame including a storage portion configured to store developer, a developer bearing member configured to supply developer to the image bearing member to develop an electrostatic latent image, and a circuit board attached to the frame. The circuit board includes a light emitting portion configured to emit light, and a light receiving portion configured to receive the light emitted from the light emitting portion and having passed through an interior of the storage portion.

Patterning of organometallic radiation sensitive compositions is facilitated using alkylsulfonic acid developer compositions and patterning methods. The alkylsulfonic acid developer compositions comprise an alkylsulfonic acid composition and a solvent, such as water or an organic solvent. In some embodiments, contact with an alkylsulfonic acid developer composition can be performed on an organometallic composition having a latent image to form a developed, physical pattern. The latent image may be formed by irradiation of an organometallic composition with a pattern of radiation, such as EUV radiation. In some embodiments, contact with an alkylsulfonic acid developer composition can be performed on an organometallic composition having a physical pattern to form a higher contrast, descummed pattern. Methods for patterning with an alkylsulfonic acid developer composition may include heating prior to and / or after contacting with the alkylsulfonic acid developer composition as well as resting for selected periods of time.

A process cartridge includes a first unit including an image bearing member configured to carry an electrostatic latent image, and a second unit including a developer bearing member configured to develop the electrostatic latent image carried on the image bearing member into a toner image, the second unit being capable of being mounted on the first unit in a mounting direction. The first unit includes a moving member that moves the second unit mounted on the first unit at a mounting position to a detachment position. The second unit includes a storage unit that stores information about the second unit. The moving member is disposed on a first side of the process cartridge in a longitudinal direction of the image bearing member. An electrode of the storage unit is disposed on a second side of the process cartridge in the longitudinal direction.

An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a toner container, a toner concentration sensor, a toner charge amount detection portion, and a control portion. The developing device includes a developer carrying member carrying a two-component developer and develops an electrostatic latent image into a toner image. The toner concentration sensor detects a toner concentration in the developing device. The toner charge amount detection portion detects a toner charge amount in the developing device. Based on a result of detection by the toner concentration sensor, the control portion controls replenishment of the developing device with the toner from the toner container. Based on the toner charge amount detected by the toner charge amount detection portion, the control portion executes first target value changing control of changing a target value of the toner concentration.

The present invention provides an image forming apparatus that can suppress image defects such as image fogging by suppressing contact charging between fluorine particles and toner due to the embedding of fluorine particles in the drum recesses, and contact charging between the toner and the drum recesses. [Solution] The image forming apparatus comprises an image carrier having a conductive substrate and a photosensitive layer laminated on the surface of the conductive substrate, a charging device, an exposure device, and a developing device. The developing device contains a non-magnetic one-component developer consisting only of toner and supplies the toner to the image carrier on which an electrostatic latent image has been formed. The toner comprises toner matrix particles and fluororesin particles with a number-average primary particle diameter of 100 nm to 300 nm that are externally added to the surface of the toner matrix particles. The amount of fluororesin particles added per 100 parts by mass of toner matrix particles is 1.2 parts by mass or less, and the number-average primary particle diameter r of the fluororesin particles and the arithmetic mean roughness Ra of the surface of the photosensitive layer satisfy r > Ra.

To provide an image forming apparatus capable of effectively removing deposits attached to a charged member. [Solution] The device comprises a photoreceptor having a charge injection layer containing conductive particles, a charging member in contact with the surface of the photoreceptor, a developing unit that develops an electrostatic latent image as a toner image, a transfer unit, and a control unit that controls the voltage applied to the charging member, and is capable of executing an image forming mode for transferring a toner image to a transfer member and a cleaning mode executed at a different timing from the image forming mode. In the cleaning mode, the control unit (i) periodically switches the voltage applied to the charging member within a range less than a discharge threshold relative to the surface potential of the photoreceptor before passing through the charging member, and (ii) sets the period of the voltage waveform pattern such that 0.05 ≤ Vpp_d / Vpp_t ≤ 0.865, where Vpp_t is the amplitude of the voltage and Vpp_d is the amplitude of the surface potential of the photoreceptor after passing through the charging member.