57 results about "Image cube" patented technology

Apparatus and methods for characterizing panoramic content, such as by a wide field of view and large image size. In one implementation, a panoramic image may be mapped to a cube or any other projection e.g icosahedron or octahedron. The disclosure exploits content continuity between facets, such as in the case of encoding / decoding cube-projected images. One facet may be encoded / decoded independently from other facets to obtain a seed facet. One or more transformed versions of the seed facet may be obtained; e.g., one corresponding to a 90° counterclockwise rotation, another to a 90° clockwise rotation, and one to an 180° rotation. Transformed versions may be used to form an augmented image. The remaining facets of the cube may be encoded using transformed versions within the augmented image. Continuity between transformed facets in the top row of the augmented image and facets in the middle row of the augmented image may be utilized for motion or intra prediction, and to obtain greater encoding performance compared to encoding facets independently.

A method of detecting oxygen and / or chemical content in a subject, comprising generating at least one spectral image of the subject; generating at least one spectral image of a reference object; comparing spectrum from the subject image to the reference image to thereby reveal the relative oxygen content of the subject. A system for determining the level of oxygenation of the blood of a subject body part comprising: a hyperspectral image generator for generating a plurality of spectral images; an image capture device for capturing the spectral images; a processor for generating hyperspectral image cubes such that the spectrum of the body part is extracted and normalized using the spectrum from the reference object to cancel out the spectral response of the light source and the imager; said processor comparing spectral from a subject image to reference images to thereby reveal the relative oxygen content of the subject.

The invention discloses an LED-based low-cost hyperspectral detection system, comprising: a light source module, a light splitting module, a sampling module and a data processing module. The light splitting module sorts each LED according to a peak wavelength, and sequentially turns on the LED lamp separately to complete a light splitting process of the hyperspectral detection system; the drivingcurrent of the LED is adjusted to change the spectral distribution and the peak wavelength of a light beam, and current modulation is applied to the LED light source, thereby improving the light splitting precision; the data processing module uniformly divides a hyperspectral image cube into sub-cubes, sequentially arranges an unfolded two-dimensional matrix of each sub-cube in a sub-cube group onthe direction of column, merges the two-dimensional matrices into a two-dimensional matrix, and achieves the low-rank constraint of the hyperspectral image cube on the spectrum and the space throughthe rank of the two-dimensional matrix for removing all kinds of different noise; and a spatial-spectral dictionary of sparse representation is learned by using a dictionary learning algorithm according to the above sub-cubes, and the dictionary is used for improving the spectral resolution of a hyperspectral data cube.

Apparatus and methods for characterizing panoramic content, such as by a wide field of view and large image size. In one implementation, a panoramic image may be mapped to a cube or any other projection e.g icosahedron or octahedron. The disclosure exploits content continuity between facets, such as in the case of encoding / decoding cube-projected images. One facet may be encoded / decoded independently from other facets to obtain a seed facet. One or more transformed versions of the seed facet may be obtained; e.g., one corresponding to a 90° counterclockwise rotation, another to a 90° clockwise rotation, and one to an 180° rotation. Transformed versions may be used to form an augmented image. The remaining facets of the cube may be encoded using transformed versions within the augmented image. Continuity between transformed facets in the top row of the augmented image and facets in the middle row of the augmented image may be utilized for motion or intra prediction, and to obtain greater encoding performance compared to encoding facets independently.

The invention discloses a hyperspectral-analysis-based copper quality detection method, which comprises the following steps of: (1) constructing a characteristic image cube of a copper material to be detected; (2) extracting contents and spectral information of ingredients of the copper material to be detected from the characteristic image cube; and (3) evaluating the quality of the copper material to be detected. According to the method disclosed by the invention, the concept of the characteristic image cube is introduced based on the traditional hyperspectral image processing technology, meanwhile, the image characteristics and the spectral characteristics of the copper material to be detected are acquired, and the copper material is subjected to characteristic extraction and quality detection by using a fused PSO-nsNMF (Particle Swarm Optimization-based non-smooth Nonnegative Matrix Factorization) algorithm, therefore, the accuracy in the detection of copper quality is ensured. The invention further discloses a hyperspectral-analysis-based copper quality detection system which comprises a hyperspectral imaging unit and an image processing unit; the hyperspectral-analysis-based copper quality detection system disclosed by the invention is used for carrying out real-time online acquisition and data processing on an image of a copper sample by utilizing a computer and combining with a hyperspectral imaging instrument, therefore, the timeliness in the detection of copper quality is ensured.

The invention relates to a system for rebuilding spectrum of high spectrum intervention data and a method thereof. Based on the interference imaging mechanism of an HJ-1A high spectrum camera, the system adopts a particular data processing method to rebuild intervention data into spectrum data, which solves the practical engineering problems in processing ground system building data. The system comprises a relative radiation correction unit, an interference data de-noising unit, an apodization processing unit, a spectrum recovering unit and a spectrum checking unit; wherein, the spectrum recovering unit converts an interference data cube into a spectrum image data cube by the symmetrization processing of interference data; the spectrum checking unit carries out wavelength positioning to areal object spectrum image cube by checking the position of the characteristic spectral line of an imaging spectrometer. The technical scheme of the invention fills the blank of data processing of satellite-bone interference imaging spectrometers in China, and satisfies user demand for the data of satellite-bone interference imaging spectrometers.

Panoramic content may be characterized by a wide field of view and large image size. Panoramic image may be mapped to cube projection. When encoding / decoding cube-projected images, the disclosure exploits content continuity between cube facets. One facet may be encoded / decoded independently from other facets to obtain a seed facet. One or more transformed versions of the seed facet may be obtained, for example, one corresponding to a 90° counterclockwise rotation, another to a 90° clockwise rotation, and one to an 180° rotation. Transformed versions may be used to form an augmented image. The remained facets of the cube may be encoded using transformed versions within the augmented image. Boundary filtering may be applied to one or more edges of one or more facets.