184results about How to "Remove shadows" patented technology

A high efficiency, environmentally friendly system comprising a plurality of photovoltaic solar collecting panels (PV panels) is disclosed. The system comprises an outer frame to which a plurality of inner frames are mounted to which the plurality of PV panels are attached. To minimize shadowing by the outer frame upon one or more PV panels, at least one PV panel may extend beyond an endpoint of the main frame. The system also comprises an outer frame rotation actuator that rotates the outer frame and an inner frame rotation actuator that rotates the inner frames and the plurality of PV panels. The solar tracking array frames disclosed herein help to improve the quality of the environment by conserving a variety of energy resources (e.g., fossil fuels, hydroelectric energy, etc.) The solar tracking array frames disclosed herein also help to reduce greenhouse gas emissions, as solar tracking array frames do not produce carbon dioxide byproducts.

An illuminating device for photographing includes: an illuminating unit having a plurality of current-controlled light emitting elements, which illuminates a subject with light emitted from the plurality of light emitting elements; a storage unit in which light emission brightness information is stored in correspondence to each of the plurality of light emitting elements; and a light emission control unit that controls light emission at the plurality of light emitting elements based upon the light emission brightness information stored in the storage unit so that the plurality of light emitting elements achieve uniform brightness levels at the subject.

The present disclosure relates to a number of inventions directed, generally, to the application of image processing techniques to traffic data acquisition using video images. The inventions reside in a traffic monitoring system, the basic function of which is for traffic data acquisition and incident detection. More specifically, the application of image processing techniques for the detection of vehicle, from sequence of video images, as well as the acquisition of traffic data and detection of traffic incident. In one aspect, the present invention provides a method of processing images received from a video based traffic monitoring system. In another aspect, the present invention is directed to a Region Of Interest (ROI) for detection of a moving vehicle and a further aspect is directed to a method of detecting day or night status in a traffic monitoring system. It's The application of various algorithms to a video based traffic monitoring system is also considered inventive. Other inventive aspects of the present traffic monitoring system are outlined in the claims.

A multi-target object tracking system of a panorama video sequence image comprises a panorama camera shooting device and a microprocessor. The panorama camera shooting device is used for acquiring a scene in a large area, and the microprocessor is used for video analyzing and processing a panorama image shot by the panorama camera shooting device. During the processing process of moving target object extracting and simple multi-target object tracking, an MHoEI (motion history or energy images) algorithm which is low in computation complexity, simple in parameters and threshold value selection and convenient to realize in a system-on-chip is utilized. In order to effectively track multi-target objects in the scene in cases of shielding, separating and merging, the multi-target objects are sequentially tracked via motion characteristics, color characteristics and shape characteristics of the target objects according to matched results, and while tracking efficiency is improved, robustness for tracking the multi-target objects is improved.

The present invention is directed towards the holding of medical devices during manufacture to enable the application of therapeutic and/or protective coatings. More specifically, the present invention provides medical device holders that securely retain stents and other medical devices during the application of a coating while minimizing compressive and tensile forces applied to the stents. The invention avoids disruptions to coating quality due to holder blockage during coating deposition. The invention discloses an improved device containing a mandrel and frame that may improve coating uniformity by eliminating shadowing from the frame of the medical device holder when applying coatings to stents and other medical devices.

An interactive image projection system and method provides for projection of an interactive image on a projection surface. A copy of the image is broadcast by two projectors onto the projection surface in registration with one another to form a single projection copy on the surface. Sensors on the surface detect a position on the projection surface of an object manipulatable by a user and a computing device connected to the object generates an output in response thereto. The projectors are configured such that any shadow cast by the object in the path of a projection from one projector is at least partially eliminated by the projection of the other projector.

The invention relates to a LED bulb having light on the back, including a lamp body, a lamp seat and a lamp head, the inner of the lamp body is provided with LED lamps, the shape of the lamp is protruding surface, inside which is partly provided with a convex mirror, or the outside is partly provided with curved surface. The convex side on the inner surface of the lamp protruding surface is coated with tapetum lucidum, which adds the reflecting effect. The invention has the following beneficial effect: through the convex mirror and the concave surface to reflect the LED light, the light can be reflected to the back of the lamp, thereby advancing the photometric brightness of the lamp back, eliminating the shadow to make the illuminating and decorative effect even better. The invention has simple structure, easy realization.

The invention discloses a background updating method and a vehicle target extracting method in traffic video monitoring. The background updating method comprises the following step of: carrying out background updating judgment based on Canny edge detection. The background updating method solves the problem that the real-time background updating property is poor when traffic jams occur in urban cross roads and people wait a traffic light at a traffic light cross road. The vehicle target extracting method comprises the background updating method disclosed by the invention and a shadow and adhesion eliminating method. The vehicle target extracting method comprises the following step of: extracting a foreground image of a vehicle target on the premise of obtaining an ideal background based onthe background updating method; and then eliminating shadows and adhesions, wherein the shadow and adhesion eliminating method comprises the following steps of: eliminating the shadows by using a cross-correlation function, filling a hole, cutting edges, and sequentially carrying out noise reduction, vertical projection and horizontal projection, and thus the problems of target vehicle adhesion and inaccurate outline caused by the shadows are solved; and extracting an ideal vehicle target.

The invention discloses an intelligent dimming controller in an LED shadowless lamp lighting system. A blurred visual image processing technology is adopted to conduct feature analysis and processing on images in a surgical view field, brightness information and chrominance information of a lighting environment are extracted, and current control parameters of LED light sources are calculated through an intelligent processing algorithm. Specifically, the images in the surgical view field are converted into digital image signals firstly, the signals are read into the system through a video image collecting module, then the signals are analyzed through an image analysis and processing module, illuminance distribution information and chrominance distribution information are extracted, corresponding illuminance feature vectors and corresponding chrominance feature vectors are extracted through an illuminance and chrominance feature extraction module, a shadow area generated by a shielding object is split through a blurred image dividing module, the driving current value of the corresponding LED light source is worked out through a blurred neural network, the driving current value is sent to an LED controller to adjust the brightness of a corresponding LED. Thus, the purposes of shadow eliminating, illuminance evening and constant-light control are achieved, automatic dimming control is realized, no manual intervention is needed, and shadows are completely eliminated.

The invention discloses a method for extracting foreground in piggery monitoring video. The method comprises the steps of firstly acquiring an initial background frame containing no foreground and a background frame sequence containing the foreground, then carrying out adjacent symmetric frame difference and background frame difference, carrying out foreground motion analysis according to the adjacent symmetric frame difference and the background frame difference, acquiring a status code, updating background and fusing the two frame differences by utilizing the status code so as to acquire a shade containing foreground, calculating background Euclidean distance of local texture operators and S (saturation) and H (hue) channel background frame difference of HSV (hue-saturation-value) colour space, combining shade discriminating conditions, and finally extracting a foreground frame according to result of pixel attribute values. The invention is applicable to piggery monitoring of large-scale piggery farms, has adaptability, robustness and higher foreground target segmentation accuracy and creates favorable conditions for subsequent work which is pig video intelligent analysis.

A design and process are provided in which a plurality of differently colored adhesives underlie differently colored flock fibers.

The invention belongs to the field of machine vision and pattern recognition, and particularly discloses a robust pointer instrument reading automatic identification method. The automatic identification method comprises the following steps: s1, acquiring an instrument panel image; s2, extracting an intrinsic image corresponding to the instrument panel image, and eliminating shadow during the intrinsic image extraction process; s3, determining the center of the instrument panel based on the intrinsic image, and then positioning the scale mark and the instrument pointer; s4, determining the location area of the numbers on the instrument panel and identifying the numbers in the location area on the instrument panel; s5, determining the relative relationship between the instrument pointer position and the scale mark according to the position of the instrument pointer, and obtaining instrument reading according to the scale reading. According to the method provided by the invention, the intrinsic image of the instrument panel is extracted to eliminate the shadow generated due to shielding by the edge of the instrument panel, and mistakes during subsequent identification of the scale mark and pointer of the instrument panel are prevented.

A backlight module is provided, which includes a base, a light source, and at least one polygonal support member. The base has a lower surface, and the light source is disposed on the base. A transverse section of the polygonal support member includes a first side, and an angle formed by a projection line of a connecting line between the midpoint of the first side and the light source on the lower surface and a projection line of the first side on the lower surface is between 80 degrees and 100 degrees.

The invention discloses a U-shaped soft light shadowless studio system, which comprises a main studio structure and a lighting system, wherein the main studio structure comprises an upright surface and a top surface; the upright surface is a U-shaped curved surface; the top surface covers the upper part of the upright surface; spreading soft light cloth is arranged at the inner side of the upright surface and the lower part of the top surface; the lighting system comprises a plurality of soft light lamps with adjustable brightness; and the soft light lamps are evenly distributed on the upright surface and the top surface. The U-shaped soft light shadowless studio system is relatively comprehensive in light distribution, low in demands on buildings, simple in structure, low in cost, and good in optical shadow elimination effect; the site is saved; a late shadow elimination treatment does not need to be carried out after shooting; manpower is saved; the U-shaped soft light shadowless studio system is convenient to dim and efficient to work; light distribution parameters can be memorized; standardization of a shooting operation is easy to implement; and various shooting backgrounds can be highly restored.

A lighting device having one or more pair of side-emitting light-emitting diodes arranged end-to-end, one “flipped” relative to the other, such that the beam spreads of the LEDs complement one another and increase the overall beam spread of the device, or instead the intensity of the beam about a narrow angle.

In an imaging method according to the present invention, in an imaging device including a taking lens having a plurality of regions each with an independent characteristic and an image pickup element having a plurality of light-receiving sensors provided so as to correspond to the plurality or regions, the plurality of light-receiving sensors performing pupil division of a light beam passing through any of the plurality of regions for selective light-receiving, from an imaging signal from a light-receiving sensor corresponding to one region of the plurality of regions, an image corresponding to the one region is generated. When the generated image is corrected, an influence of a light beam passing through a region other than the one region is removed from the image generated so as to correspond to the one region.

The invention provides a method and system for simultaneously imaging multiple views of a plant embryo. First, the method provides a camera for receiving a first view of a plant embryo (e.g., the top view). Second, the method provides a first reflecting surface for receiving and reflecting a second view of the plant embryo (e.g., the side view) toward the camera. Thus, the method permits simultaneously imaging both the first and second views of the plant embryo. In one embodiment, the method further provides a second reflecting surface for receiving and reflecting a third view (e.g., the end view) of the plant embryo toward the camera, so that the camera can simultaneously image the first, second, and third views of the plant embryo. The invention reduces the time required to obtain multiple views of an embryo, which can then be analyzed to classify the embryos according to their germination vigor.

The invention belongs to textile measuring device field; it discloses a new device and method for detecting the humidity leading performance of textile. The testing device includes an upper and a subjacent image sensor, an upper and a subjacent flash-less astral lamp, automatic titration device, testing agent, sample bracket, constant temperature and humidity box, computer, a displaying device and a printer. The invention can estimate the humidity leading performance to each kind of textile objectively.

The invention discloses a method and a device for detecting a vehicle at night, which relate to the field of intelligent traffic systems and aim to solve the problem that the influence of illumination and halo of vehicle lamps causes the reduction of accuracy in detecting the vehicle at night. The technical scheme provided by the invention comprises: acquiring adjacent video frames; extracting aninterested area according to a difference between two adjacent video frames; and detecting the vehicle at night according to the interested area. The technical scheme provided by the embodiment of the invention is suitable for the intelligent traffic systems.

The present invention discloses a face image illumination compensation method. The method comprises the following steps that: step 1, classical retinex illumination compensation is performed on an original image; step 2, edge detection is performed, a pseudo edge is judged by using an equation (13), and a low-illuminance region C (x, y) corresponding to the pseudo edge is marked by using an equation (17); step 3, structural tensors and eigenvalues mu1 and mu2 corresponding to the structural tensors are obtained according to equations (14) and (16); step 4, values are re-assigned to mu1 and mu2, the values obtained in the step 2 and step 3 are introduced into an equation (20); and step 5, the environment function of the Retinex algorithm is improved, illumination processing is performed on the original image, and an illumination-compensated image is obtained by using an equation (5). With the method of the invention adopted, the inadequacies of traditional Retinex and PCNN in eliminating shadows and causing fogging phenomena in illumination compensation can be eliminated, shadows in the image can be diluted to a certain extent, the shadow edges of the image can be eliminated, detail information can be presented, a face recognition rate can be improved, and a face misjudgment rate can be decreased.