Abstract: A method for obtaining an improved depth precision for a stereo image of an object of interest is disclosed, comprising: imaging a first image of the object of interest from a first position; imaging a second image of the object of interest from a second position different from the first position; wherein the method comprises determining a rough estimate of the depth for the object of interest, based on the first image and the second image; determining an improved set of imaging positions corresponding to an improved depth precision for the object of interest, based on the rough estimate of the depth; imaging improved images from the improved set of imaging positions; determining an improved depth based on the improved images. Also associated systems have been described.

Abstract: A method and device for determining at least one set of matching attributes between a plurality of images is disclosed. Two dimensional images are projected to a three dimensional space then searched for matching attributes. Searching for corresponding attributes is much easier and computationally less intensive in the 3D space compared to a search in the 2D space. The method includes steps of projecting at least part of the images of said plurality to a 3-dimensional space resulting in a plurality of 3-D projected images (image1_3D, image2_3D), searching for at least one corresponding set of elements within the 3D projected images of the plurality of 3-D projected images, and calculating back said corresponding elements within the original images of the plurality and providing said corresponding elements within said original images as said at least one set of matched attributes.

Abstract: A method for encoding at least one video stream (IV1, IV2), includes the steps of : receiving said at least one input video stream (IV1, IV2), construction of a sequence of predicted pixel blocks (PPB1, PPB2), processing said sequence of predicted pixel blocks (PPB1, PPB2) and corresponding blocks of said at least one input video stream (IV1, IV2) to obtain a sequence of processed residual pixel data (QRPD1, QRPD2), wherein said sequence of predicted pixel blocks (PPB) is constructed from input encoding structure data (IESD) from reference input data (IREF), said input encoding structure data (IESD) further undergoing a combined entropy encoding step with said processed residual pixel data (QRPD) to thereby obtain at least one encoded video stream (EV1, EV2). An encoder and several arrangements comprising such an encoder are disclosed as well.

Abstract: A method for jointly encoding a plurality of video streams (IV1, IV2, IV3), includes the steps of—receiving said plurality of video streams (IV1, IV2, IV3)—constructing a plurality of sequences of predicted pixel blocks (PPB1, PPB2, PPB3), processing and entropy encoding said predicted pixel blocks (PPB1, PPB2, PPB3) of said plurality of sequences of predicted pixel blocks with corresponding blocks of said plurality of video streams (IV1, IV2, IV3) for generating a plurality of sequences of encoded residual pixel data (ERPD1, ERPD2, ERPD3), wherein said plurality of sequences of predicted pixel blocks (PPB1, PPB2, PPB3) are constructed from encoding structure data (ESD, ESD1, JESD) generated from said plurality of video streams (IV1, IV2,IV3), and wherein said plurality of sequences of encoded residual pixel data (ERPD1, ERPD2, ERPD3) is provided together with reference data (IREF) comprising said encoding structure data (ESD, ESD1, JESD) as encoded data of said plurality of video streams.