An image lossless compression device and method
A lossless compression and image technology, applied in the direction of image communication, digital video signal modification, electrical components, etc., can solve the problems of increasing the cost of imaging system implementation, the difficulty of compression without information loss, and wasting storage capacity, so as to facilitate hardware transplantation, The hardware realizes the effect of low latency and high processing frequency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0086] Such as figure 1 As shown, this embodiment proposes a lossless image compression device, which includes a state register unit, a data distributor, an S-O-F inserter, a difference encoding unit and a code stream synthesizer, wherein:
[0087] The state register unit includes a P loop counter, an L loop counter, and an F increment counter, which are mainly used to calculate and register the output status of the current image data, including the current pixel number, the current line number, and the current frame number.
[0088] The data distributor obtains the row number and frame number output by the state register unit, allocates and switches subsequent processing channels of the data stream, so that the data stream enters the channel of the S-O-F inserter and the channel of the difference encoding unit.
[0089] The S-O-F inserter also obtains the pixel serial number, row serial number, and frame serial number output by the state register unit. When the front dark pix...
Embodiment 2
[0093] Such as figure 2 As shown, this embodiment proposes an image lossless compression method, using such as figure 1 As shown in the image lossless compression device, the compression method comprises the following steps:
[0094] Step 1. Keep the original data output without any processing on the first frame image;
[0095] Step 2. From the second frame of image, the dark pixel row in the frame of image data is calculated according to the formula (1) or formula (2) to obtain the alignment code value, and output after replacing the original value;
[0096] Step 3. Using the time correlation of the image frame sequence, the subsequent effective pixel rows in the second frame image and the corresponding rows in the previous image are calculated according to the formula (3) to obtain the image frame residual; the calculated residual, Compared with the preset threshold, and according to the formula (4) and formula (5) to obtain the coding mark value and the OV value, the codin...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com