99 results about "Cropping" patented technology

A method of cropping a digital image and preserving a reserve for subsequent use includes cropping the digital image to produce a first cropped digital image, the first cropped digital image having a first size and a first aspect ratio; determining, based on the location of the cropping, at least one reserve portion of the image adjacent to at least one edge of the first cropped digital image; and storing, in an image file, the first cropped digital image and the reserve(s).

A digital camera allows the photographer to specify an aspect ratio at which a photograph will be used, typically an aspect ratio of a standard photographic print format. The aspect ratio may optionally be specified by indicating which standard format is to be used. The aspect ratio may optionally be specified by a numerical value. The camera may optionally alter its preview image to match the desired aspect ratio. The resulting photograph may optionally be cropped to the desired aspect ratio before being stored. The resulting photograph may optionally be stored in its uncropped size, and aspect ratio and cropping information stored with it as metadata.

In order to improve a cropping system by obtaining the coverage of a wide range of contents for smaller sized displays of handheld devices, the invention proposes a method starting from a metadata aggregation and the corresponding video, e.g. in post-production, programme exchange and archiving, wherein (a) the video is passed through a video analysis to deliver video, e.g. by use of motion detection, morphology filters, edge detection, etc., (b) the separated video and metadata are combined to extract important features in a context wherein important information from the metadata is categorised and is used to initialise a dynamically fitted chain of feature extraction steps adapted to the delivered video content, (c) extracted important features are combined to defione regions of interest (ROI) which are searched in consecutive video frames by object tracking, said object tracking identifies the new position and deformation of each initialised ROI in consecutive video frames and returns this information to the feature extraction thereby obtaining a permanent communication between said feature extraction and said object tracking, (d) one or several ROIs are extracted and inputted video frame by video frame into a cropping step (e); based on weighting information a well composed image part is cropped by classifying said supplied ROIs by importance, and (f) said cropped image area(s) are scaled to the desired small screen size.

The invention relates to a dynamic guideline overlay with image cropping. A method for dynamically registering a graphic upon a cropped image obtained from a camera device includes capturing an original image obtained from the camera device. Intrinsic calibration information for the camera device, extrinsic information for the camera device and vehicle information are monitored. The cropped image is generated based on cropping parameters to exclude undesirable content from the original image. The intrinsic calibration information is adjusted based on a relationship to the cropping parameters. The graphic is dynamically registered upon the cropped image based on the adjusted intrinsic calibration information for the camera device, the monitored extrinsic information for the camera device and the monitored vehicle information.

The embodiment of the invention discloses a video cropping method and device, and the method comprises the steps: obtaining a to-be-processed target video, and recognizing the position of a target object from a video frame of the target video; determining a motion track of the target object in the target video according to the identified position of the target object; based on the determined motion trail, cutting out a region image containing the target object from a video frame of the target video; and making a clipped video corresponding to the target object according to the cropped region image. According to the technical scheme provided by the invention, the cropped video can still display the main content of the original video.

The invention discloses a blind digital watermarking encoding and decoding method capable of withstanding a cropping attack for a fusion vision model; according to the invention, the scene information of a video image collected by a camera in a monitoring scene is directly added in the video image by digital watermarking encoding and decoding technology to facilitate a policymaker to make decision according to the video image and the self-carrying scene information; the watermarking encoding method optimized on the basis of secondary planning of the invention has strong stability on such attacks as cropping, noise, filtering and lossy data compression, and the like, so that the added scene information can withstand common amends on the video image; and a deconvolution synchronization point locating method of Fourier transform is adopted in the invention to improve the operation speed of the method and to operate a real-time watermarking encoding and decoding procedure on a PC platform by the method.

The invention discloses a cultivation method for increasing grains per spike and the grain weight of winter wheat and making the winter wheat ripen in advance. The cultivation method is especially suitable for superhigh-yield cultivation of the winter wheat in regions where wheat and corns are insufficient in heat quantity for double cropping. The cultivation method mainly includes the following steps that (1) a shed frame of which the height ranges from 20cm to 25cm is built, after the winter wheat is vernalized, three layers of plastic films cover a wheat field in late January, and temperature rises to make the winter wheat revive as soon as possible; (2) after air temperature rises, the number of layers of covered films is reduced to make the temperature under the films stable, and the first layer is removed in mid-to-late February; (3) the second layer is removed at the beginning of March; (4) the two opposite shed walls are uncovered in the mid-to-late March for ventilation, and cold resistance exercise time ranges from 5 days to 7 days; (5) at the end of March and the beginning of April, the third layer of pore films is removed when jointing is conducted on the wheat in the shed. The number of spikelets is increased by covering the plastic films to prolong time from reviving to jointing, temperature is relatively low after the films are removed, the wheat grows slower after jointing, and floret degeneration number is reduced; flowering is conducted in advance, the ripening rate is improved, grain filling time is prolonged, then, the wheat ripens in advance, and the grain weight is increased by avoiding dry and hot wind.

The invention discloses a double cropping mode remote sensing monitoring method for bulk grain and oil crops in a double cropping area, and the method comprises the following steps: A, acquiring cropping information of a research area by combining with Chinese cropping zoning data, and carrying out geographical location zoning on the research area according to a longitude and latitude range; B, performing a series of processing on the high-resolution multispectral satellite image of the research area to obtain a preprocessed multiband image, an EVI gray image, an edgNDVI gray image, an LSWI gray image and a D-value gray image, of which the time phases can be distinguished in the northern region and the southern region of one year with two matures; C, classifying and identifying the two-season bulk grain and oil crops in the northern double-cropping area and the southern double-cropping area; D, optimizing a classification identification result by using a small plaque aggregation method; E, judging a multiple cropping mode. According to the invention, rapid and high-precision acquisition of the multiple cropping mode of the bulk grain and oil crops under a large spatial scale and a complex planting system can be realized.

A method and apparatus for “double cropping”, with photovoltaic panel arrays mounted on and operating from specialized photovoltaic solar array support structures that are supported above agricultural fields at heights that allow the passage of large mechanized farm equipment to pass beneath. The arrays are optimized for sun sharing operation in that their solar panel design, spacing and computerized movement are optimized to both generate electricity and increase the agricultural efficiency of the underlying land.

The invention relates to a batched field-of-view cropping and ruler adding method for metallographic digital photographs, in particular to a batched field-of-view cropping and ruler adding method for the metallographic digital photographs by using Photoshop software, wherein the method is simple, efficient and capable of achieving batched manufacturing. The method includes the steps of photograph acquisition, ruler calibration, length conversion, action recording and batched processing. According to the method, field-of-view cropping and ruler adding for the metallographic digital photographs are achieved with the method of combining a 'batched processing' function and an 'action' function of the Photoshop software, a large number of photographs can be processed in single-step operation, therefore, work efficiency is greatly improved, and labor intensity of workers occupied in metallographic analysis is alleviated; in addition, the photographs after being cropped are consistent in size, added rulers are fixed in position, and the manufactured metallographic digital photographs are uniform in overall style.

The invention belongs to the field of cropping equipment, and discloses a cropping device. At least two components of a cutter, a bag pressing piece, a bag twisting piece and a heat isolation piece are included. A rotary main shaft is arranged. A transmission structure for converting the rotation movement of the main shaft into the linear movement or for transmitting the rotation movement of the main shaft is arranged between the main shaft and at least two components. A rotary power source is adopted in the cropping device, a traditional air cylinder linear driving manner is replaced, the structure design can be optimized, the equipment size is reduced, and assembling and maintaining are convenient; and under the coaxial situation, the two ends of the cutter can act more easily, stress iskept consistent, and the cropping equipment has better action stability and can adapt to the occasion where the action speed is high.

An image cropping process of a multifunction peripheral is provided. Firstly, a top edge endpoint of an object image is searched from a band image of an original image. Then, each band image of the original image is read to search the object endpoint coordinate of a to-be-printed object image zone. The object image zone is outputted to be printed. The image cropping process further provides a strategy for detecting spots in order to enhance the accuracy of searching the object image.

The present invention relates to a rotating image generation method, comprising the steps of: displaying a preview screen which displays an image input through a camera in advance; when a shooting button is selected, receiving an image frame about a specific shot object from the camera; tracking a photographed object existing in each image frame by using a preset tracking algorithm; cropping (crop) at least a portion of each image frame according to a position of the subject; and stabilizing the cut image frame.

The invention relates to a video clipping method and device, a storage medium and electronic equipment, and aims to save the time overhead in the video cropping process and improve the video croppingefficiency. The video clipping method comprises the steps of obtaining a to-be-cropped original video and a target clipping size; determining an initial clipping frame according to the main body contents of a plurality of target video frames in the original video; determining whether each frame of picture of the original video is clipped through the same clipping frame or not according to the difference condition between the size of the clipping frame and the target clipping size and the change condition of the main body content in the plurality of target video frames; if it is determined thateach frame of picture of the original video is clipped through the same clipping frame, determining a target clipping frame capable of including the maximum main content in the original video from multiple candidate clipping frames, and the size of each candidate clipping frame being consistent with that of the initial clipping frame; and clipping the original video according to the target clipping frame.

The embodiment of the invention discloses a video cropping method and a server. The video cropping method provides a target object in a video, and comprises the steps of determining an object contourof a target object in a current frame of a video; determining a target area in the current frame based on the object contour, and determining an image in the target area as a cut frame of the currentframe, wherein in the video, the first deviation degree between the center coordinate of the target area in the current frame and the center coordinate of the target area in the previous frame is smaller than or equal to a specified deviation degree threshold value, and the proportion of the part of the object contour contained in the target area in the current frame is larger than or equal to a specified proportion; and generating a clipped video corresponding to the video according to the clipped frame determined from the video. According to the technical scheme provided by the embodiment ofthe invention, the jitter phenomenon of the clipped video can be prevented, so that the watching effect of the clipped video is improved.

In order to maintain the space-time coherence of a redirected video and the reconstruction quality of important contents of the video, the invention provides an intelligent cropping video redirectionmethod based on relative displacement constraints. The method comprises the following steps: firstly, adaptively fusing a spatial saliency map and a motion history map to obtain an importance map of each frame; obtaining relative displacement between frames through an SIFT matching algorithm and an RANSAC method, and adding the relative displacement between the frames into a time coherence constraint term; carrying out scaling optimization on the video groups after scene detection grouping, and determining an optimal redirection window and a scaling factor of the video groups; and finally, redirecting the video group by using the corresponding redirection window and scaling factor. And if the jump frame exists, performing smoothing processing on the importance degree graph through a feedback mechanism, and performing scaling optimization and redirection again to reduce jitter. Experimental results show that compared with an existing video redirection method, the method not only can obtain better reconstruction quality of important content of the video, but also effectively reduces jitter of the redirection video.

The invention relates to a single cropping rice SAR (Synthetic Aperture Radar) identification method for small and medium-sized fields in a complex terrain environment, which comprises the following steps of: preprocessing SAR remote sensing image data of the whole year, and converting SAR remote sensing image pixel values into actual ground feature backscattering intensity to obtain ground feature backscattering intensity data of a time sequence of the whole year; average value synthesis is carried out on the ground feature back scattering intensity data of the whole-year time sequence in each set period length, and time sequence Savitzky-Golay filtering is carried out on the synthesized time sequence data. The method has the advantages that average value synthesis is carried out on the single cropping rice SAR back scattering intensity time sequence, the rice back scattering time sequence is reconstructed by introducing Savitzky-Golay filtering, the influence of SAR speckle noise and abnormal values is effectively restrained, the real intensity of rice back scattering is well reserved, and the method has the advantages of being high in accuracy and high in accuracy. The method can be used for seasonal characterization of phenological development characteristics of rice all the year round, and is beneficial to accurate extraction of phenological characteristics of rice.

The invention relates to the field of computer vision, provides a video cropping method and device, computer equipment and a computer readable storage medium, and aims to solve the problem that the video cropping efficiency is low or key parts in a video are easily cropped off in the prior art. The method comprises the following steps: obtaining a region of interest of an initial video frame in ato-be-cropped video; tracking the region of interest in each frame of video after the initial video frame in real time; cropping each frame of the to-be-cropped video by taking the edge of the regionof interest or the extended edge around the region of interest as a cutting boundary according to a real-time tracking result of the region of interest to obtain a cropped video; and outputting the cropped video. According to the technical scheme, on one hand, the efficiency is high, the cost is low, and on the other hand, important and key parts of the to-be-cropped video are reserved when the to-be-cropped video is clipped, so that the video cropping effect can meet the requirement of a user for the video.

The invention discloses a picture clipping method and device and computer equipment. The picture cutting method comprises the following steps: cutting a picture, receiving a picture cutting instruction input by a user, performing corresponding equal-ratio processing on the first cut picture according to a preset pop-up layer, receiving the size of the cutting frame; determining the actual size ofthe cutting frame in the first cutting picture; the size of the cut box is determined according to the ratio of the width to the height of the cutting frame; therefore, the scaling of the first cut picture is determined; scaling the first cut picture according to the scaling ratio, and a cutting area of the cutting frame in the target cutting picture, according to the left offset and the upper offset of the tailoring area, the tailoring area is tailored; according to the method, the position of the cropping area in the target cropping picture is determined, the images outside the cropping areaare hidden, all pixel contents of the whole picture do not need to be read into a memory, the picture cropping function is achieved under the condition that a new picture does not need to be output again, and therefore the picture cropping efficiency is improved.

The invention relates to a video cropping method and device, electronic equipment and a storage medium. The method is applied to an anchor client, and comprises the following steps: acquiring video data running on the anchor client, and acquiring a screen type of the anchor client; if the screen type is a preset screen type, obtaining a size parameter of a video picture in the video data; and if the size parameter of the video picture is different from the preset size parameter, cutting the video data according to the preset size parameter to obtain a cut video. According to the invention, thevideo content watched by audiences can be larger and clearer, and the display effect of video pictures can be improved.

The invention relates to a video cropping method and device, a storage medium and electronic equipment, so as to achieve the purpose of dynamically adjusting the size of a corresponding cropping frameaccording to main body contents in different target video frames, retain most main body contents of each frame of picture in an original video, and improve the quality of cropped videos. The video cropping method comprises the steps of obtaining a to-be-cropped original video; performing frame extraction on the original video to obtain a plurality of target video frames; for each target video frame, determining a target candidate cutting box corresponding to the target video frame according to the main body content in the target video frame; performing interpolation according to the target candidate clipping frame corresponding to each target video frame to determine a target clipping frame corresponding to each frame of picture in the original video; and clipping the original video according to the target clipping frame corresponding to each frame of picture.

The invention provides a video cropping method and device, equipment and a storage medium. The method comprises the following steps: acquiring at least one detection box of a first image frame; determining the cost of the detection box according to at least one selected from the importance score, the coverage area and the smooth distance of any detection box in the at least one detection box; determining the first detection box with the lowest cost in the at least one detection box as a cropping box; and cropping a first image frame based on the cropping frame. Based on the cost of each detection frame, the first detection frame with the minimum cost in the at least one detection frame is determined as the cropping frame so as to crop the first image frame, thereby improving the flexibility of video cropping and enhancing the cropping effect under the condition of ensuring the simplification of a video cropping process.

The embodiment of the invention relates to the technical field of Internet, and discloses a video cropping method, electronic equipment and a computer readable storage medium. The video cropping method comprises the following steps: performing shot segmentation on a to-be-cropped video to obtain each video frame under each shot; determining the position of a motion area in each video frame under each shot; determining a cutting position sequence corresponding to each lens according to the position of the motion area; wherein the clipping position sequence comprises clipping positions of all video frames under all the shots; and according to the clipping position sequence, clipping the to-be-clipped video to obtain a clipped target video, so that effective and continuous clipping positionscan be accurately positioned, the continuity of the clipped video is enhanced, and the clipped video can be prevented from deviating or jumping.

The invention discloses a high-yield cultivation method improving grain number per spike and grain weight of winter wheat and advancing maturity. The method is especially suitable for winter wheat ultra-high yield cultivation in wheat and corn double cropping heat shortage regions. Main steps and principles comprise: (1) building a shed frame with height of 20-25 cm, after vernalization of the winter wheat, in the late ten days of January, covering three layers of plastic films on a rye, increasing temperature to promote the winter wheat to turn green early; (2) after temperature rises, keeping temperature under the film stable through reducing the number of film layers, in mid-and-late March, uncovering shed walls on two opposite sides to ventilate, training cold resistance for 5-7 days;(5) in the end of March and beginning of April, when wheat in the shed joints, uncovering a third layer of pore film. Through covering the plastic film, time from turn green to jointing is prolonged,so spikelet number is increased. After the film is uncovered, temperature is relatively low, after wheat jointing, growth becomes slow, floweret deterioration number is reduced, flowering is brought forward, setting percentage is improved, grouting time is prolonged, and wheat matures in advance, and dry hot wind is avoided and grain weight is improved.

A system and method are disclosed for communicating video / images from a first electronic device to a second electronic device via a network. The first electronic device can include a digital video camera and the second electronic device can include a mobile electronic device, such as a smart phone. The method can include, with the first electronic device, acquiring a first image (as part of a video) having a first resolution, transmitting the first image with a second resolution to the second electronic device, receiving a cropping parameter from the second electronic device, acquiring a second image (as part of a video), cropping the second image based on the crop parameter resulting in a third image having a third resolution, and transmitting the third image with the third resolution.