8 results about "Visual masking" patented technology

The present application relates to the field of three-dimensional graphics processing and intelligent rendering, in particular to a three-dimensional model processing system for exhibition hall; comprising data acquisition interface, sensing acquisition device, model topology preprocessing, space-time attention prediction, adaptive grid reconstruction and visual masking transition module; the system combines the observer space state and the environment guide flow to predict the visual landing point area and the visual field edge area, and generates the topology grid data containing the visual attraction index based on the preset semantic weight; the core is to follow the rules of the non-uniform subdivision of the visual landing point area and the grid collapse of the visual field edge area to reconstruct the model, and to trigger the detail level switching when the sight line angular velocity is higher than the saccade speed threshold; the present application discards the traditional way of fixed rendering according to observation distance or overall uniform precision, uses the audience attention dynamic scheduling rendering computing power, effectively considers the local key detail performance and the overall overhead, and eliminates the picture mutation caused by precision switching.

The application discloses a display screen environment adaptive brightness adjusting method and device, which fuses environmental illumination data and facial brightness data to form a brightness perception data frame, constructs an illumination distribution matrix through blink cycle shielding and scene type detection; performs illumination jump characteristic analysis on the illumination distribution matrix to identify a high-illumination jump area, determines an adjusting reference position through continuous jump attenuation priority enhancement analysis, positions a backlight adjusting node after comparing the adjusting reference position with the brightness perception data frame; determines backlight driving parameters according to the backlight adjusting node and generates a backlight optimization sequence, generates an adjusting configuration scheme through advanced multi-scene brightness fusion; determines an adjusting period based on visual masking window alignment of the adjusting configuration scheme, and executes PWM closed-loop modulation to output a brightness adjusting instruction. The application integrates multi-source perception fusion, jump identification and visual masking execution into a unified adjusting process, and improves the matching degree of display screen brightness adjustment and user visual comfort.

The application discloses an image content protection method for an Android platform, and proposes a JND model watermarking method suitable for the Android platform. First, by calling various parameters of the Android end, such as screen brightness, screen size and light sensor parameters, a spatial contrast sensitivity function threshold suitable for the Android platform is obtained. By analyzing the weights of three features of sharpness, texture and direction complexity, a saliency value is obtained through multi-feature weighted fusion, and finally a visual masking value of the multi-feature weighted fusion is obtained through modulation and added to the JND model suitable for the Android platform. Finally, the JND model suitable for the Android platform based on the multi-feature weighted fusion is applied to a quantization watermarking scheme. Experiments show that the JND model suitable for the Android platform based on the multi-feature weighted fusion has good robustness and invisibility for watermark embedding and extraction. The designed watermarking system can better authenticate and protect the image content of the Android platform.

The application discloses a kind of based on multi-paradigm cooperation's electroencephalogram signal interaction and decoding method and system, it is related to brain-computer interface and extended reality interaction technical field.The method includes: according to display terminal refresh cycle generation base frequency brightness modulation sequence, when real-time monitoring that phase is in preset wave crest interval, based on psychophysics parameter configuration superimposed transient enhancement signal, form the mixed visual stimulation using visual masking effect;Through the biological sensing module integrated with heterogeneous edge computing architecture, using main control microcontroller and special signal processing core collaborative execution channel mask screening and hardware level frequency domain filtering, remove artifact in source end;To preprocessed data parallel execution frequency domain and time domain feature extraction, and using normalized signal-to-noise ratio as dynamic weight to double-flow feature is weighted fusion, generates convergence decision result.The application overcomes the visual interference problem of AR device in outdoor low-light environment through soft and hard collaborative mechanism, and significantly reduces mobile terminal wireless transmission power consumption and system delay.

This application provides laminated glass, a projection system, and a vehicle. The laminated glass includes a first glass plate, an intermediate adhesive layer, a second glass plate, and an adjustment layer. The laminated glass has a wedge shape. When the proportion of S-polarized light in the projected light is ≥90% and the incident angle β of the projected light is >65°, the brightness ratio RR12 of the primary and secondary images of the laminated glass is ≥12.5. This application not only reduces the ghosting separation between the reflected primary and secondary images by setting a wedge shape, but also converts S-polarized light into P-polarized light by setting an adjustment layer. Combined with the high proportion of S-polarized light in the projected light and the high incident angle, the reflected secondary image is dimmed. The laminated glass has a high brightness ratio RR12, thereby achieving synergy with the head-up display system. By utilizing the visual masking effect in visual perception, the user can observe a clear display image, improving driving safety.

This application relates to the technical field of e-ink screen control, and in particular to an intelligent power-saving refresh method for e-ink screens. The method includes acquiring the current display frame data and the target frame data to be refreshed, and performing a pixel-by-pixel XOR operation; writing the changed pixels whose XOR result is not zero into an active refresh queue; acquiring the real-time ambient light illuminance: switching to a masked state when the illuminance is greater than a first illuminance threshold in the non-masked state; switching back to the non-masked state when the illuminance is less than a second illuminance threshold in the masked state; acquiring the truncation counters and their count values ​​corresponding to each changed pixel in the active refresh queue; and during the synchronous output of a complete waveform sequence or a truncated waveform sequence to the changed pixels, outputting a voltage equivalent to the common electrode potential for the unchanged pixels whose XOR result is zero. This application dynamically maintains charge balance while utilizing visual masking to save power.

The invention discloses an exhibition visual effect intelligent optimization method based on deep learning, and relates to the technical field of computer vision and digital image processing, and the method comprises the steps: employing a projector and camera closed-loop architecture, and building pixel mapping through geometric alignment; extracting visual saliency characteristics of the original frame and environment interference characteristics of the feedback picture in parallel; pixel-level nonlinear coupling is carried out on the two to generate a strategy weight map; and performing hierarchical adaptive rendering on the image, including GAN texture reconstruction for a high-weight region, visual masking for a defective region and basic color correction. According to the method, intelligent distribution of computing power and accurate repair of textures are realized through a double-flow coupling mechanism, content dynamic avoidance of physical blind areas is supported, and the immersive projection effect under a complex non-ideal surface is remarkably improved.

The invention discloses a panoramic three-dimensional scene interactive display method for intervening visual angle dizziness, and relates to the technical field of three-dimensional digital modeling, and the method comprises the following steps: detecting the spatial position of a camera, and monitoring whether the camera is in a model interpenetration or geometric penetration state in real time; the movement speed of the camera is controlled through the spring arm to relieve 3D vertigo; a springback function is added to the spring arm; adding a camera view mask to intervene in 3D vertigo, and intervening in the rotational movement speed through acceleration in the rotational movement process; the system has the advantages that the linear motion speed of the camera is effectively controlled, the visual mask is added to the camera, the rotary motion speed of the camera is effectively restricted, the spring arm is combined with the visual mask, the 3D vertigo generated in the experience process is greatly reduced on the premise of ensuring the immersive experience of an experiencer, the deep interaction between the digital virtual cultural relics and audiences is optimized, and the experience experience is improved. The participation degree and experience quality of audiences are improved, and a novel display interaction mode is provided for the field of digital cultural relic protection.