128results about How to "Reduce memory cost" patented technology

The present invention provides a method to automatically regulate brightness of liquid crystal displays (LCDs), which resolves the overload and easy fatigue of human eyes and poor image contrast due to high brightness of the conventional LCD. The present invention includes use of four parts, including an image brightness regulating unit, an image brightness ratio computation and output controlling unit, an ambient light detection and brightness adaptation regulating unit and an image gray level expanding unit. The image signals of an LCD are processed in such a manner to enable automatic control of optical flux of LCD TV by regulating the gray level of output images. Also, optical flux of LCD TV can be automatically controlled with the change of images and ambient light, thus alleviating overburdening of human eyes and improving the contrast and comfort of images for a better visual effect.

A system and method for encryption, transmission and decryption of data based on a publicly or other wide area broadcast random number sequence. Encryption is by a selected subsequence from the broadcast random number sequence, the selection being at a sample time relative to a synchronization event, with the sample time calculated based on a private key. Decryption uses the same private key to select the same subsequence from the broadcast random number sequence, as detection by the sender and receiver of the synchronization event and a sampling time based on a commonly known private key allows the sampling to be synchronous. Alternative embodiments employ trusted agents if the tender and receiver do not have a common private key.

The invention provides a method for uniformly providing login for multiple network services. The method includes: a cloud server of a network service provider receives a login request which is sent by a user through a first client side; the cloud server generates a two-dimensional code according to an identification string distributed to the login request and an identification code of the network service provider; the cloud server sends the two-dimensional code to the first client side and displays the two-dimensional code via the first client side; the cloud server receives user account information sent after the second client side shoots and analyzes the two-dimensional code; and the cloud server performs login authentication for the first client side according to the account information. The method provides uniform two-dimensional code login for multiple network server providers, so that user memory cost is reduced, login information input for each login is not required, login operation cost is low, user experience is fine, and user account safety is good. The invention further discloses a system for uniformly providing login for the multiple network service and the cloud server.

CCD data is compressed by compression means and stored in a raw image data buffer (step 10). Then, the compressed data is expanded by expansion means, so that pixel data thereof is sequentially output to an RPU (step 11). The RPU executes real-time image processing on the pixel data, so that the processed data is stored in a processed data buffer in units of frames. Then, a CPU reads an image from the processed data buffer at a proper timing and performs software processing such as high-efficiency coding through a temporary storage data buffer, for storing and preserving the processed data in a storage medium (step 12). Thus provided is an image processing circuit capable of reducing the scale of buffer areas in a memory for remarkably reducing the cost for the memory as well as power consumption.

Systems and methods are provided for login and authorization. For example, a third-party terminal receives a login request from a user and sends an authorization request from the third-party terminal to a network server; the network server generates first two-dimensional-barcode information and sends the first two-dimensional-barcode information to the third-party terminal; the third-party terminal displays a first two-dimensional-barcode image; a mobile terminal extracts the first two-dimensional-barcode information from the first two-dimensional-barcode image and sends first user account information and the first two-dimensional-barcode information to the network server; the network server validates the first user account information and the first two-dimensional-barcode information based on at least information associated with stored second user account information and second two-dimensional-barcode information generated by the network server.

An image pickup apparatus includes an image pickup device that converts an image entering through a lens system into a captured image; a display unit that displays an image with a first field angle obtained from the captured image that is currently being shot; a moving distance detecting unit that detects a moving distance between images with the first field angle based on a plurality of images with the first angle sequentially captured; a partial image storing unit that stores an image with a second field angle that is less than the first field angle; and a panorama composing unit that composes a panoramic image based on a plurality of images with the second field angle stored in the partial image storing unit and the moving distances between the images with the first field angle that are respectively associated with the plurality of images with the second field angle.

A display processor integrated circuit includes a display processor portion and an on-chip programmable logic portion. The programmable logic portion can be configured to implement custom video and/or image enhancement functions. The display processor portion performs block-based motion detection. If no motion is detected for a given block of pixels, then interline gaps in the block are filled using temporal interpolation. If motion is detected, then interline gaps are filled using spatial interpolation. To maintain accuracy without unduly increasing computational complexity, a less complex high angle spatial interpolation method is employed where a low angle tilt condition is not detected. A more computationally intensive low angle spatial interpolation method can therefore be employed in low angle tilt conditions. Integrated circuit cost is reduced by employing pipelining to write parts of segment buffers at the same time that other parts are being read to perform the interpolation process.

The invention discloses a method for improving the traffic sign recognition precision in extreme weather and environment, which is based on a YoV5 target detection model, integrates a focusing module, a cross-stage local fusion module and a spatial pyramid pooling structure, and can better extract feature map information from local features for traffic sign images with poor light, and the feature map more accurately expresses the image. For a small number of training data, the expressions of the traffic signs in different environments are simulated by using Gaussian noise, adding salt and pepper noise, reducing brightness, sharpening an image, reducing the size and the like in proportion, and the traffic signs are copied to a target-free picture by using a copying-pasting method, so that a data set is greatly enriched. By using the method provided by the invention, different image modes under different resolutions can be captured more easily, and the features of the target can be extracted and fused to the greatest extent; and meanwhile, convergence is quicker and more accurate, fewer positioning errors exist, and more accurate prediction is generated.