BACKGROUND EXTRACTION Sample Clauses

BACKGROUND EXTRACTION. Typically, a computer vision-based detection system requires a background image that represents the base state of the area under observation. In the case of traffic detection, it is rarely possible to obtain an image of the observation area that does not contain any vehicles or other foreground objects. Therefore, it is necessary to extract the background image from the video stream itself. This is accomplished in an iterative fashion by using the pixels that make up an image. A grayscale image has only one value for each pixel that ranges from 0 and 255. A color image uses three color channels to represent a pixel’s color. These three channels in the RGB color space are the Red channel (R), the Green channel (G), and the Blue channel (B). Each channel has a value from 0 through 255 that represents the amount of that color. When the median background extraction algorithm is applied to a color image, the median value of each color channel needs to be found for each color pixel. The intensity (or luminance) of a color pixel is the value of grayscale converted from the R, G, and B color values by using Equation (5-1) (Xxxxxxx and Xxxxxxxx, 2001). Grayscale = R * 0.30 + G * 0.59 + B * 0.11 (5-1) In this current study, the background image was obtained by constructing an image of the median value of each pixel from a collection of images: bgdi, j = median(img [n]) (5-2) i, j where: bgdi, j xxxx, x is the background image pixel value is an array of image pixel values In this study, we used a frame rate of 12 frames per second (fps) for video image processing. To extract the background image, 15 images spaced 20 frames apart were employed. By using the median value, it was assumed that the background was predominant in the image sequence. Figure 5-1 shows a snapshot of a video scene and the extracted background image for that scene. For data collections in locations with higher volumes (which would tend to obscure the background to a greater degree), a background extraction based on the mode of each pixel would be preferable (Xxxxx et al., 2006). In high volume and congested situations where portions of the background are never visible, more advanced background estimations might be required. (a) A Snapshot of a Video Scene (b) Extracted Background
Sample 1Sample 2
AutoNDA by SimpleDocs

Related to BACKGROUND EXTRACTION

  • Project Background 6.1.1. Brief description of Contracting Agency’s project background and/or situation leading to this Project

  • Background Screening VENDOR shall comply with all requirements of Sections 1012.32 and 1012.465, Florida Statutes, and all of its personnel who (1) are to be permitted access to school grounds when students are present, (2) will have direct contact with students, or (3) have access or control of school funds, will successfully complete the background screening required by the referenced statutes and meet the standards established by the statutes. This background screening will be conducted by SBBC in advance of VENDOR or its personnel providing any services under the conditions described in the previous sentence. VENDOR shall bear the cost of acquiring the background screening required by Section 1012.32, Florida Statutes, and any fee imposed by the Florida Department of Law Enforcement to maintain the fingerprints provided with respect to VENDOR and its personnel. The parties agree that the failure of VENDOR to perform any of the duties described in this section shall constitute a material breach of this Agreement entitling SBBC to terminate immediately with no further responsibilities or duties to perform under this Agreement. VENDOR agrees to indemnify and hold harmless SBBC, its officers and employees from any liability in the form of physical or mental injury, death or property damage resulting from VENDOR’s failure to comply with the requirements of this section or with Sections 1012.32 and 1012.465, Florida Statutes.

  • Background Data The Disclosing Party's Background Data, if any, will be identified in a separate technical document.

  • Access Toll Connecting Trunk Group Architecture 9.2.1 If CSTC chooses to subtend a Verizon access Tandem, CSTC’s NPA/NXX must be assigned by CSTC to subtend the same Verizon access Tandem that a Verizon NPA/NXX serving the same Rate Center Area subtends as identified in the LERG. 9.2.2 CSTC shall establish Access Toll Connecting Trunks pursuant to applicable access Tariffs by which it will provide Switched Exchange Access Services to Interexchange Carriers to enable such Interexchange Carriers to originate and terminate traffic to and from CSTC’s Customers. 9.2.3 The Access Toll Connecting Trunks shall be two-way trunks. Such trunks shall connect the End Office CSTC utilizes to provide Telephone Exchange Service and Switched Exchange Access to its Customers in a given LATA to the access Tandem(s) Verizon utilizes to provide Exchange Access in such LATA. 9.2.4 Access Toll Connecting Trunks shall be used solely for the transmission and routing of Exchange Access to allow CSTC’s Customers to connect to or be connected to the interexchange trunks of any Interexchange Carrier which is connected to a Verizon access Tandem.

  • Construction materials (1) The restrictions of section 1605 of the American Recovery and Reinvestment Act of 2009 (Pub. L. 111-5) (Recovery Act) do not apply to Recovery Act designated country manufactured construction material. The restrictions of the Buy American statute do not apply to designated country unmanufactured construction material. Consistent with U.S. obligations under international agreements, this clause implements--

  • Development Rights The Employee agrees and declares that all proprietary information including but not limited to trade secrets, know-how, patents and other rights in connection therewith developed by or with the contribution of Employee's efforts during his employment with the Company shall be the sole property of the Company. Upon the Company's request (whenever made), Employee shall execute and assign to the Company all the rights in the proprietary information.

  • Background Technology List here prior contracts to assign Inventions that are now in existence between any other person or entity and you.

  • Background Intellectual Property It is possible that one or both Parties may possess rights in background intellectual property, that is, intellectual property not otherwise subject to this Agreement, which would be useful or essential to the practice or commercialization of the results of this Agreement. For example, the RI might own a patent which would be infringed by the SBC when it attempted to commercialize the results of this Agreement unless a license was obtained from the RI. Where the Parties determine that background technology may exist, consideration should be given to negotiating license rights which will allow the practice and commercialization of the results of this Agreement.

  • Licensed Documentation If commercially available, Licensee shall have the option to require the Contractor to deliver, at Contractor’s expense: (i) one (1) hard copy and one (1) master electronic copy of the Documentation in a mutually agreeable format; (ii) based on hard copy instructions for access by downloading from the Internet

  • Know-How The term “

Draft better contracts in just 5 minutes Get the weekly Law Insider newsletter packed with expert videos, webinars, ebooks, and more!